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Use Query.orderByKey() instead.');if("$priority"===t)throw new Error('Query.orderByChild: "$priority" is invalid.  Use Query.orderByPriority() instead.');if("$value"===t)throw new Error('Query.orderByChild: "$value" is invalid.  Use Query.orderByValue() instead.');de("Query.orderByChild",1,t,!1),this.validateNoPreviousOrderByCall_("Query.orderByChild");var n=new $(t);if(n.isEmpty())throw new Error("Query.orderByChild: cannot pass in empty path.  Use Query.orderByValue() instead.");var r=new Be(n),i=this.queryParams_.orderBy(r);return e.validateQueryEndpoints_(i),new e(this.repo,this.path,i,!0)},e.prototype.orderByKey=function(){a.validateArgCount("Query.orderByKey",0,0,arguments.length),this.validateNoPreviousOrderByCall_("Query.orderByKey");var t=this.queryParams_.orderBy(Te);return e.validateQueryEndpoints_(t),new e(this.repo,this.path,t,!0)},e.prototype.orderByPriority=function(){a.validateArgCount("Query.orderByPriority",0,0,arguments.length),this.validateNoPreviousOrderByCall_("Query.orderByPriority");var t=this.queryParams_.orderBy(Pe);return e.validateQueryEndpoints_(t),new e(this.repo,this.path,t,!0)},e.prototype.orderByValue=function(){a.validateArgCount("Query.orderByValue",0,0,arguments.length),this.validateNoPreviousOrderByCall_("Query.orderByValue");var t=this.queryParams_.orderBy(je);return e.validateQueryEndpoints_(t),new e(this.repo,this.path,t,!0)},e.prototype.startAt=function(t,n){void 0===t&&(t=null),a.validateArgCount("Query.startAt",0,2,arguments.length),ae("Query.startAt",1,t,this.path,!0),pe("Query.startAt",2,n,!0);var r=this.queryParams_.startAt(t,n);if(e.validateLimit_(r),e.validateQueryEndpoints_(r),this.queryParams_.hasStart())throw new Error("Query.startAt: Starting point was already set (by another call to startAt or equalTo).");return void 0===t&&(t=null,n=null),new e(this.repo,this.path,r,this.orderByCalled_)},e.prototype.endAt=function(t,n){void 0===t&&(t=null),a.validateArgCount("Query.endAt",0,2,arguments.length),ae("Query.endAt",1,t,this.path,!0),pe("Query.endAt",2,n,!0);var r=this.queryParams_.endAt(t,n);if(e.validateLimit_(r),e.validateQueryEndpoints_(r),this.queryParams_.hasEnd())throw new Error("Query.endAt: Ending point was already set (by another call to endAt or equalTo).");return new e(this.repo,this.path,r,this.orderByCalled_)},e.prototype.equalTo=function(e,t){if(a.validateArgCount("Query.equalTo",1,2,arguments.length),ae("Query.equalTo",1,e,this.path,!1),pe("Query.equalTo",2,t,!0),this.queryParams_.hasStart())throw new Error("Query.equalTo: Starting point was already set (by another call to startAt or equalTo).");if(this.queryParams_.hasEnd())throw new Error("Query.equalTo: Ending point was already set (by another call to endAt or equalTo).");return this.startAt(e,t).endAt(e,t)},e.prototype.toString=function(){return a.validateArgCount("Query.toString",0,0,arguments.length),this.repo.toString()+this.path.toUrlEncodedString()},e.prototype.toJSON=function(){return a.validateArgCount("Query.toJSON",0,1,arguments.length),this.toString()},e.prototype.queryObject=function(){return this.queryParams_.getQueryObject()},e.prototype.queryIdentifier=function(){var e=this.queryObject(),t=O(e);return"{}"===t?"default":t},e.prototype.isEqual=function(t){if(a.validateArgCount("Query.isEqual",1,1,arguments.length),!(t instanceof e)){var n="Query.isEqual failed: First argument must be an instance of firebase.database.Query.";throw new Error(n)}var r=this.repo===t.repo,i=this.path.equals(t.path),o=this.queryIdentifier()===t.queryIdentifier();return r&&i&&o},e.getCancelAndContextArgs_=function(e,t,n){var r={cancel:null,context:null};if(t&&n)r.cancel=t,a.validateCallback(e,3,r.cancel,!0),r.context=n,a.validateContextObject(e,4,r.context,!0);else if(t)if("object"==typeof t&&null!==t)r.context=t;else{if("function"!=typeof t)throw new Error(a.errorPrefix(e,3,!0)+" must either be a cancel callback or a context object.");r.cancel=t}return r},Object.defineProperty(e.prototype,"ref",{get:function(){return this.getRef()},enumerable:!1,configurable:!0}),e}(),Je=function(){function e(e){this.node_=e}return e.prototype.getImmediateChild=function(t){return new e(this.node_.getImmediateChild(t))},e.prototype.node=function(){return this.node_},e}(),Ze=function(){function e(e,t){this.syncTree_=e,this.path_=t}return e.prototype.getImmediateChild=function(t){var n=this.path_.child(t);return new e(this.syncTree_,n)},e.prototype.node=function(){return this.syncTree_.calcCompleteEventCache(this.path_)},e}(),et=function(e,t,n){return e&&"object"==typeof e?(a.assert(".sv"in e,"Unexpected leaf node or priority contents"),"string"==typeof e[".sv"]?tt(e[".sv"],t,n):"object"==typeof e[".sv"]?nt(e[".sv"],t):void a.assert(!1,"Unexpected server value: "+JSON.stringify(e,null,2))):e},tt=function(e,t,n){switch(e){case"timestamp":return n.timestamp;default:a.assert(!1,"Unexpected server value: "+e)}},nt=function(e,t,n){e.hasOwnProperty("increment")||a.assert(!1,"Unexpected server value: "+JSON.stringify(e,null,2));var r=e.increment;"number"!=typeof r&&a.assert(!1,"Unexpected increment value: "+r);var i=t.node();if(a.assert(null!=i,"Expected ChildrenNode.EMPTY_NODE for nulls"),!i.isLeafNode())return r;var o=i.getValue();return"number"!=typeof o?r:o+r},rt=function(e,t,n,r){return ot(t,new Ze(n,e),r)},it=function(e,t,n){return ot(e,new Je(t),n)};function ot(e,t,n){var r,i=e.getPriority().val(),o=et(i,t.getImmediateChild(".priority"),n);if(e.isLeafNode()){var s=e,a=et(s.getValue(),t,n);return a!==s.getValue()||o!==s.getPriority().val()?new Ne(a,Ve(o)):e}var l=e;return r=l,o!==l.getPriority().val()&&(r=r.updatePriority(new Ne(o))),l.forEachChild(Pe,(function(e,i){var o=ot(i,t.getImmediateChild(e),n);o!==i&&(r=r.updateImmediateChild(e,o))})),r}var st,at,lt=function(){function e(){this.value=null,this.children=new Map}return e.prototype.find=function(e){if(null!=this.value)return this.value.getChild(e);if(!e.isEmpty()&&this.children.size>0){var t=e.getFront();return e=e.popFront(),this.children.has(t)?this.children.get(t).find(e):null}return null},e.prototype.remember=function(t,n){if(t.isEmpty())this.value=n,this.children.clear();else if(null!==this.value)this.value=this.value.updateChild(t,n);else{var r=t.getFront();this.children.has(r)||this.children.set(r,new e);var i=this.children.get(r);t=t.popFront(),i.remember(t,n)}},e.prototype.forget=function(e){if(e.isEmpty())return this.value=null,this.children.clear(),!0;if(null!==this.value){if(this.value.isLeafNode())return!1;var t=this.value;this.value=null;var n=this;return t.forEachChild(Pe,(function(e,t){n.remember(new $(e),t)})),this.forget(e)}if(this.children.size>0){var r=e.getFront();return e=e.popFront(),this.children.has(r)&&this.children.get(r).forget(e)&&this.children.delete(r),0===this.children.size}return!0},e.prototype.forEachTree=function(e,t){null!==this.value?t(e,this.value):this.forEachChild((function(n,r){var i=new $(e.toString()+"/"+n);r.forEachTree(i,t)}))},e.prototype.forEachChild=function(e){this.children.forEach((function(t,n){e(n,t)}))},e}(),ut=function(e){return e[e.OVERWRITE=0]="OVERWRITE",e[e.MERGE=1]="MERGE",e[e.ACK_USER_WRITE=2]="ACK_USER_WRITE",e[e.LISTEN_COMPLETE=3]="LISTEN_COMPLETE",e}({}),ht=function(){function e(e,t,n,r){this.fromUser=e,this.fromServer=t,this.queryId=n,this.tagged=r,a.assert(!r||t,"Tagged queries must be from server.")}return e.User=new e(!0,!1,null,!1),e.Server=new e(!1,!0,null,!1),e.forServerTaggedQuery=function(t){return new e(!1,!0,t,!0)},e}(),ct=function(){function e(e,t,n){this.path=e,this.affectedTree=t,this.revert=n,this.type=ut.ACK_USER_WRITE,this.source=ht.User}return e.prototype.operationForChild=function(t){if(this.path.isEmpty()){if(null!=this.affectedTree.value)return a.assert(this.affectedTree.children.isEmpty(),"affectedTree should not have overlapping affected paths."),this;var n=this.affectedTree.subtree(new $(t));return new e($.Empty,n,this.revert)}return a.assert(this.path.getFront()===t,"operationForChild called for unrelated child."),new e(this.path.popFront(),this.affectedTree,this.revert)},e}(),pt=function(){function e(e,t){void 0===t&&(st||(st=new ke(D)),t=st),this.value=e,this.children=t}return e.fromObject=function(t){var n=e.Empty;return A(t,(function(e,t){n=n.set(new $(e),t)})),n},e.prototype.isEmpty=function(){return null===this.value&&this.children.isEmpty()},e.prototype.findRootMostMatchingPathAndValue=function(e,t){if(null!=this.value&&t(this.value))return{path:$.Empty,value:this.value};if(e.isEmpty())return null;var n=e.getFront(),r=this.children.get(n);if(null!==r){var i=r.findRootMostMatchingPathAndValue(e.popFront(),t);return null!=i?{path:new $(n).child(i.path),value:i.value}:null}return null},e.prototype.findRootMostValueAndPath=function(e){return this.findRootMostMatchingPathAndValue(e,(function(){return!0}))},e.prototype.subtree=function(t){if(t.isEmpty())return this;var n=t.getFront(),r=this.children.get(n);return null!==r?r.subtree(t.popFront()):e.Empty},e.prototype.set=function(t,n){if(t.isEmpty())return new e(n,this.children);var r=t.getFront(),i=(this.children.get(r)||e.Empty).set(t.popFront(),n),o=this.children.insert(r,i);return new e(this.value,o)},e.prototype.remove=function(t){if(t.isEmpty())return this.children.isEmpty()?e.Empty:new e(null,this.children);var n=t.getFront(),r=this.children.get(n);if(r){var i=r.remove(t.popFront()),o=void 0;return o=i.isEmpty()?this.children.remove(n):this.children.insert(n,i),null===this.value&&o.isEmpty()?e.Empty:new e(this.value,o)}return this},e.prototype.get=function(e){if(e.isEmpty())return this.value;var t=e.getFront(),n=this.children.get(t);return n?n.get(e.popFront()):null},e.prototype.setTree=function(t,n){if(t.isEmpty())return n;var r,i=t.getFront(),o=(this.children.get(i)||e.Empty).setTree(t.popFront(),n);return r=o.isEmpty()?this.children.remove(i):this.children.insert(i,o),new e(this.value,r)},e.prototype.fold=function(e){return this.fold_($.Empty,e)},e.prototype.fold_=function(e,t){var n={};return this.children.inorderTraversal((function(r,i){n[r]=i.fold_(e.child(r),t)})),t(e,this.value,n)},e.prototype.findOnPath=function(e,t){return this.findOnPath_(e,$.Empty,t)},e.prototype.findOnPath_=function(e,t,n){var r=!!this.value&&n(t,this.value);if(r)return r;if(e.isEmpty())return null;var i=e.getFront(),o=this.children.get(i);return o?o.findOnPath_(e.popFront(),t.child(i),n):null},e.prototype.foreachOnPath=function(e,t){return this.foreachOnPath_(e,$.Empty,t)},e.prototype.foreachOnPath_=function(t,n,r){if(t.isEmpty())return this;this.value&&r(n,this.value);var i=t.getFront(),o=this.children.get(i);return o?o.foreachOnPath_(t.popFront(),n.child(i),r):e.Empty},e.prototype.foreach=function(e){this.foreach_($.Empty,e)},e.prototype.foreach_=function(e,t){this.children.inorderTraversal((function(n,r){r.foreach_(e.child(n),t)})),this.value&&t(e,this.value)},e.prototype.foreachChild=function(e){this.children.inorderTraversal((function(t,n){n.value&&e(t,n.value)}))},e.Empty=new e(null),e}(),dt=function(){function e(e,t){this.source=e,this.path=t,this.type=ut.LISTEN_COMPLETE}return e.prototype.operationForChild=function(t){return this.path.isEmpty()?new e(this.source,$.Empty):new e(this.source,this.path.popFront())},e}(),ft=function(){function e(e,t,n){this.source=e,this.path=t,this.snap=n,this.type=ut.OVERWRITE}return e.prototype.operationForChild=function(t){return this.path.isEmpty()?new e(this.source,$.Empty,this.snap.getImmediateChild(t)):new e(this.source,this.path.popFront(),this.snap)},e}(),_t=function(){function e(e,t,n){this.source=e,this.path=t,this.children=n,this.type=ut.MERGE}return e.prototype.operationForChild=function(t){if(this.path.isEmpty()){var n=this.children.subtree(new $(t));return n.isEmpty()?null:n.value?new ft(this.source,$.Empty,n.value):new e(this.source,$.Empty,n)}return a.assert(this.path.getFront()===t,"Can't get a merge for a child not on the path of the operation"),new e(this.source,this.path.popFront(),this.children)},e.prototype.toString=function(){return"Operation("+this.path+": "+this.source.toString()+" merge: "+this.children.toString()+")"},e}(),yt=function(){function e(e,t,n){this.node_=e,this.fullyInitialized_=t,this.filtered_=n}return e.prototype.isFullyInitialized=function(){return this.fullyInitialized_},e.prototype.isFiltered=function(){return this.filtered_},e.prototype.isCompleteForPath=function(e){if(e.isEmpty())return this.isFullyInitialized()&&!this.filtered_;var t=e.getFront();return this.isCompleteForChild(t)},e.prototype.isCompleteForChild=function(e){return this.isFullyInitialized()&&!this.filtered_||this.node_.hasChild(e)},e.prototype.getNode=function(){return this.node_},e}(),vt=function(){function e(e,t){this.eventCache_=e,this.serverCache_=t}return e.prototype.updateEventSnap=function(t,n,r){return new e(new yt(t,n,r),this.serverCache_)},e.prototype.updateServerSnap=function(t,n,r){return new e(this.eventCache_,new yt(t,n,r))},e.prototype.getEventCache=function(){return this.eventCache_},e.prototype.getCompleteEventSnap=function(){return this.eventCache_.isFullyInitialized()?this.eventCache_.getNode():null},e.prototype.getServerCache=function(){return this.serverCache_},e.prototype.getCompleteServerSnap=function(){return this.serverCache_.isFullyInitialized()?this.serverCache_.getNode():null},e.Empty=new e(new yt(Qe.EMPTY_NODE,!1,!1),new yt(Qe.EMPTY_NODE,!1,!1)),e}(),gt=function(){function e(e,t,n,r,i){this.type=e,this.snapshotNode=t,this.childName=n,this.oldSnap=r,this.prevName=i}return e.valueChange=function(t){return new e(e.VALUE,t)},e.childAddedChange=function(t,n){return new e(e.CHILD_ADDED,n,t)},e.childRemovedChange=function(t,n){return new e(e.CHILD_REMOVED,n,t)},e.childChangedChange=function(t,n,r){return new e(e.CHILD_CHANGED,n,t,r)},e.childMovedChange=function(t,n){return new e(e.CHILD_MOVED,n,t)},e.CHILD_ADDED="child_added",e.CHILD_REMOVED="child_removed",e.CHILD_CHANGED="child_changed",e.CHILD_MOVED="child_moved",e.VALUE="value",e}(),mt=function(){function e(e){this.index_=e}return e.prototype.updateChild=function(e,t,n,r,i,o){a.assert(e.isIndexed(this.index_),"A node must be indexed if only a child is updated");var s=e.getImmediateChild(t);return s.getChild(r).equals(n.getChild(r))&&s.isEmpty()===n.isEmpty()?e:(null!=o&&(n.isEmpty()?e.hasChild(t)?o.trackChildChange(gt.childRemovedChange(t,s)):a.assert(e.isLeafNode(),"A child remove without an old child only makes sense on a leaf node"):s.isEmpty()?o.trackChildChange(gt.childAddedChange(t,n)):o.trackChildChange(gt.childChangedChange(t,n,s))),e.isLeafNode()&&n.isEmpty()?e:e.updateImmediateChild(t,n).withIndex(this.index_))},e.prototype.updateFullNode=function(e,t,n){return null!=n&&(e.isLeafNode()||e.forEachChild(Pe,(function(e,r){t.hasChild(e)||n.trackChildChange(gt.childRemovedChange(e,r))})),t.isLeafNode()||t.forEachChild(Pe,(function(t,r){if(e.hasChild(t)){var i=e.getImmediateChild(t);i.equals(r)||n.trackChildChange(gt.childChangedChange(t,r,i))}else n.trackChildChange(gt.childAddedChange(t,r))}))),t.withIndex(this.index_)},e.prototype.updatePriority=function(e,t){return e.isEmpty()?Qe.EMPTY_NODE:e.updatePriority(t)},e.prototype.filtersNodes=function(){return!1},e.prototype.getIndexedFilter=function(){return this},e.prototype.getIndex=function(){return this.index_},e}(),Ct=function(){function e(){this.changeMap=new Map}return e.prototype.trackChildChange=function(e){var t=e.type,n=e.childName;a.assert(t===gt.CHILD_ADDED||t===gt.CHILD_CHANGED||t===gt.CHILD_REMOVED,"Only child changes supported for tracking"),a.assert(".priority"!==n,"Only non-priority child changes can be tracked.");var r=this.changeMap.get(n);if(r){var i=r.type;if(t===gt.CHILD_ADDED&&i===gt.CHILD_REMOVED)this.changeMap.set(n,gt.childChangedChange(n,e.snapshotNode,r.snapshotNode));else if(t===gt.CHILD_REMOVED&&i===gt.CHILD_ADDED)this.changeMap.delete(n);else if(t===gt.CHILD_REMOVED&&i===gt.CHILD_CHANGED)this.changeMap.set(n,gt.childRemovedChange(n,r.oldSnap));else if(t===gt.CHILD_CHANGED&&i===gt.CHILD_ADDED)this.changeMap.set(n,gt.childAddedChange(n,e.snapshotNode));else{if(t!==gt.CHILD_CHANGED||i!==gt.CHILD_CHANGED)throw a.assertionError("Illegal combination of changes: "+e+" occurred after "+r);this.changeMap.set(n,gt.childChangedChange(n,e.snapshotNode,r.oldSnap))}}else this.changeMap.set(n,e)},e.prototype.getChanges=function(){return Array.from(this.changeMap.values())},e}(),Et=new(function(){function e(){}return e.prototype.getCompleteChild=function(e){return null},e.prototype.getChildAfterChild=function(e,t,n){return null},e}()),wt=function(){function e(e,t,n){void 0===n&&(n=null),this.writes_=e,this.viewCache_=t,this.optCompleteServerCache_=n}return e.prototype.getCompleteChild=function(e){var t=this.viewCache_.getEventCache();if(t.isCompleteForChild(e))return t.getNode().getImmediateChild(e);var n=null!=this.optCompleteServerCache_?new yt(this.optCompleteServerCache_,!0,!1):this.viewCache_.getServerCache();return this.writes_.calcCompleteChild(e,n)},e.prototype.getChildAfterChild=function(e,t,n){var r=null!=this.optCompleteServerCache_?this.optCompleteServerCache_:this.viewCache_.getCompleteServerSnap(),i=this.writes_.calcIndexedSlice(r,t,1,n,e);return 0===i.length?null:i[0]},e}(),bt=function(){return function(e,t){this.viewCache=e,this.changes=t}}(),Tt=function(){function e(e){this.filter_=e}return e.prototype.assertIndexed=function(e){a.assert(e.getEventCache().getNode().isIndexed(this.filter_.getIndex()),"Event snap not indexed"),a.assert(e.getServerCache().getNode().isIndexed(this.filter_.getIndex()),"Server snap not indexed")},e.prototype.applyOperation=function(t,n,r,i){var o,s,l=new Ct;if(n.type===ut.OVERWRITE){var u=n;u.source.fromUser?o=this.applyUserOverwrite_(t,u.path,u.snap,r,i,l):(a.assert(u.source.fromServer,"Unknown source."),s=u.source.tagged||t.getServerCache().isFiltered()&&!u.path.isEmpty(),o=this.applyServerOverwrite_(t,u.path,u.snap,r,i,s,l))}else if(n.type===ut.MERGE){var h=n;h.source.fromUser?o=this.applyUserMerge_(t,h.path,h.children,r,i,l):(a.assert(h.source.fromServer,"Unknown source."),s=h.source.tagged||t.getServerCache().isFiltered(),o=this.applyServerMerge_(t,h.path,h.children,r,i,s,l))}else if(n.type===ut.ACK_USER_WRITE){var c=n;o=c.revert?this.revertUserWrite_(t,c.path,r,i,l):this.ackUserWrite_(t,c.path,c.affectedTree,r,i,l)}else{if(n.type!==ut.LISTEN_COMPLETE)throw a.assertionError("Unknown operation type: "+n.type);o=this.listenComplete_(t,n.path,r,l)}var p=l.getChanges();return e.maybeAddValueEvent_(t,o,p),new bt(o,p)},e.maybeAddValueEvent_=function(e,t,n){var r=t.getEventCache();if(r.isFullyInitialized()){var i=r.getNode().isLeafNode()||r.getNode().isEmpty(),o=e.getCompleteEventSnap();(n.length>0||!e.getEventCache().isFullyInitialized()||i&&!r.getNode().equals(o)||!r.getNode().getPriority().equals(o.getPriority()))&&n.push(gt.valueChange(t.getCompleteEventSnap()))}},e.prototype.generateEventCacheAfterServerEvent_=function(e,t,n,r,i){var o=e.getEventCache();if(null!=n.shadowingWrite(t))return e;var s=void 0,l=void 0;if(t.isEmpty())if(a.assert(e.getServerCache().isFullyInitialized(),"If change path is empty, we must have complete server data"),e.getServerCache().isFiltered()){var u=e.getCompleteServerSnap(),h=n.calcCompleteEventChildren(u instanceof Qe?u:Qe.EMPTY_NODE);s=this.filter_.updateFullNode(e.getEventCache().getNode(),h,i)}else{var c=n.calcCompleteEventCache(e.getCompleteServerSnap());s=this.filter_.updateFullNode(e.getEventCache().getNode(),c,i)}else{var p=t.getFront();if(".priority"===p){a.assert(1===t.getLength(),"Can't have a priority with additional path components");var d=o.getNode();l=e.getServerCache().getNode();var f=n.calcEventCacheAfterServerOverwrite(t,d,l);s=null!=f?this.filter_.updatePriority(d,f):o.getNode()}else{var _=t.popFront(),y=void 0;if(o.isCompleteForChild(p)){l=e.getServerCache().getNode();var v=n.calcEventCacheAfterServerOverwrite(t,o.getNode(),l);y=null!=v?o.getNode().getImmediateChild(p).updateChild(_,v):o.getNode().getImmediateChild(p)}else y=n.calcCompleteChild(p,e.getServerCache());s=null!=y?this.filter_.updateChild(o.getNode(),p,y,_,r,i):o.getNode()}}return e.updateEventSnap(s,o.isFullyInitialized()||t.isEmpty(),this.filter_.filtersNodes())},e.prototype.applyServerOverwrite_=function(e,t,n,r,i,o,s){var a,l=e.getServerCache(),u=o?this.filter_:this.filter_.getIndexedFilter();if(t.isEmpty())a=u.updateFullNode(l.getNode(),n,null);else if(u.filtersNodes()&&!l.isFiltered()){var h=l.getNode().updateChild(t,n);a=u.updateFullNode(l.getNode(),h,null)}else{var c=t.getFront();if(!l.isCompleteForPath(t)&&t.getLength()>1)return e;var p=t.popFront(),d=l.getNode().getImmediateChild(c).updateChild(p,n);a=".priority"===c?u.updatePriority(l.getNode(),d):u.updateChild(l.getNode(),c,d,p,Et,null)}var f=e.updateServerSnap(a,l.isFullyInitialized()||t.isEmpty(),u.filtersNodes()),_=new wt(r,f,i);return this.generateEventCacheAfterServerEvent_(f,t,r,_,s)},e.prototype.applyUserOverwrite_=function(e,t,n,r,i,o){var s,a,l=e.getEventCache(),u=new wt(r,e,i);if(t.isEmpty())a=this.filter_.updateFullNode(e.getEventCache().getNode(),n,o),s=e.updateEventSnap(a,!0,this.filter_.filtersNodes());else{var h=t.getFront();if(".priority"===h)a=this.filter_.updatePriority(e.getEventCache().getNode(),n),s=e.updateEventSnap(a,l.isFullyInitialized(),l.isFiltered());else{var c=t.popFront(),p=l.getNode().getImmediateChild(h),d=void 0;if(c.isEmpty())d=n;else{var f=u.getCompleteChild(h);d=null!=f?".priority"===c.getBack()&&f.getChild(c.parent()).isEmpty()?f:f.updateChild(c,n):Qe.EMPTY_NODE}if(p.equals(d))s=e;else{var _=this.filter_.updateChild(l.getNode(),h,d,c,u,o);s=e.updateEventSnap(_,l.isFullyInitialized(),this.filter_.filtersNodes())}}}return s},e.cacheHasChild_=function(e,t){return e.getEventCache().isCompleteForChild(t)},e.prototype.applyUserMerge_=function(t,n,r,i,o,s){var a=this,l=t;return r.foreach((function(r,u){var h=n.child(r);e.cacheHasChild_(t,h.getFront())&&(l=a.applyUserOverwrite_(l,h,u,i,o,s))})),r.foreach((function(r,u){var h=n.child(r);e.cacheHasChild_(t,h.getFront())||(l=a.applyUserOverwrite_(l,h,u,i,o,s))})),l},e.prototype.applyMerge_=function(e,t){return t.foreach((function(t,n){e=e.updateChild(t,n)})),e},e.prototype.applyServerMerge_=function(e,t,n,r,i,o,s){var a=this;if(e.getServerCache().getNode().isEmpty()&&!e.getServerCache().isFullyInitialized())return e;var l,u=e;l=t.isEmpty()?n:pt.Empty.setTree(t,n);var h=e.getServerCache().getNode();return l.children.inorderTraversal((function(t,n){if(h.hasChild(t)){var l=e.getServerCache().getNode().getImmediateChild(t),c=a.applyMerge_(l,n);u=a.applyServerOverwrite_(u,new $(t),c,r,i,o,s)}})),l.children.inorderTraversal((function(t,n){var l=!e.getServerCache().isCompleteForChild(t)&&null==n.value;if(!h.hasChild(t)&&!l){var c=e.getServerCache().getNode().getImmediateChild(t),p=a.applyMerge_(c,n);u=a.applyServerOverwrite_(u,new $(t),p,r,i,o,s)}})),u},e.prototype.ackUserWrite_=function(e,t,n,r,i,o){if(null!=r.shadowingWrite(t))return e;var s=e.getServerCache().isFiltered(),a=e.getServerCache();if(null!=n.value){if(t.isEmpty()&&a.isFullyInitialized()||a.isCompleteForPath(t))return this.applyServerOverwrite_(e,t,a.getNode().getChild(t),r,i,s,o);if(t.isEmpty()){var l=pt.Empty;return a.getNode().forEachChild(Te,(function(e,t){l=l.set(new $(e),t)})),this.applyServerMerge_(e,t,l,r,i,s,o)}return e}var u=pt.Empty;return n.foreach((function(e,n){var r=t.child(e);a.isCompleteForPath(r)&&(u=u.set(e,a.getNode().getChild(r)))})),this.applyServerMerge_(e,t,u,r,i,s,o)},e.prototype.listenComplete_=function(e,t,n,r){var i=e.getServerCache(),o=e.updateServerSnap(i.getNode(),i.isFullyInitialized()||t.isEmpty(),i.isFiltered());return this.generateEventCacheAfterServerEvent_(o,t,n,Et,r)},e.prototype.revertUserWrite_=function(e,t,n,r,i){var o;if(null!=n.shadowingWrite(t))return e;var s=new wt(n,e,r),l=e.getEventCache().getNode(),u=void 0;if(t.isEmpty()||".priority"===t.getFront()){var h=void 0;if(e.getServerCache().isFullyInitialized())h=n.calcCompleteEventCache(e.getCompleteServerSnap());else{var c=e.getServerCache().getNode();a.assert(c instanceof Qe,"serverChildren would be complete if leaf node"),h=n.calcCompleteEventChildren(c)}u=this.filter_.updateFullNode(l,h=h,i)}else{var p=t.getFront(),d=n.calcCompleteChild(p,e.getServerCache());null==d&&e.getServerCache().isCompleteForChild(p)&&(d=l.getImmediateChild(p)),(u=null!=d?this.filter_.updateChild(l,p,d,t.popFront(),s,i):e.getEventCache().getNode().hasChild(p)?this.filter_.updateChild(l,p,Qe.EMPTY_NODE,t.popFront(),s,i):l).isEmpty()&&e.getServerCache().isFullyInitialized()&&(o=n.calcCompleteEventCache(e.getCompleteServerSnap())).isLeafNode()&&(u=this.filter_.updateFullNode(u,o,i))}return o=e.getServerCache().isFullyInitialized()||null!=n.shadowingWrite($.Empty),e.updateEventSnap(u,o,this.filter_.filtersNodes())},e}(),St=function(){function e(e){this.query_=e,this.index_=this.query_.getQueryParams().getIndex()}return e.prototype.generateEventsForChanges=function(e,t,n){var r=this,i=[],o=[];return e.forEach((function(e){e.type===gt.CHILD_CHANGED&&r.index_.indexedValueChanged(e.oldSnap,e.snapshotNode)&&o.push(gt.childMovedChange(e.childName,e.snapshotNode))})),this.generateEventsForType_(i,gt.CHILD_REMOVED,e,n,t),this.generateEventsForType_(i,gt.CHILD_ADDED,e,n,t),this.generateEventsForType_(i,gt.CHILD_MOVED,o,n,t),this.generateEventsForType_(i,gt.CHILD_CHANGED,e,n,t),this.generateEventsForType_(i,gt.VALUE,e,n,t),i},e.prototype.generateEventsForType_=function(e,t,n,r,i){var o=this,s=n.filter((function(e){return e.type===t}));s.sort(this.compareChanges_.bind(this)),s.forEach((function(t){var n=o.materializeSingleChange_(t,i);r.forEach((function(r){r.respondsTo(t.type)&&e.push(r.createEvent(n,o.query_))}))}))},e.prototype.materializeSingleChange_=function(e,t){return"value"===e.type||"child_removed"===e.type||(e.prevName=t.getPredecessorChildName(e.childName,e.snapshotNode,this.index_)),e},e.prototype.compareChanges_=function(e,t){if(null==e.childName||null==t.childName)throw a.assertionError("Should only compare child_ events.");var n=new Ee(e.childName,e.snapshotNode),r=new Ee(t.childName,t.snapshotNode);return this.index_.compare(n,r)},e}(),It=function(){function e(e,t){this.query_=e,this.eventRegistrations_=[];var n=this.query_.getQueryParams(),r=new mt(n.getIndex()),i=n.getNodeFilter();this.processor_=new Tt(i);var o=t.getServerCache(),s=t.getEventCache(),a=r.updateFullNode(Qe.EMPTY_NODE,o.getNode(),null),l=i.updateFullNode(Qe.EMPTY_NODE,s.getNode(),null),u=new yt(a,o.isFullyInitialized(),r.filtersNodes()),h=new yt(l,s.isFullyInitialized(),i.filtersNodes());this.viewCache_=new vt(h,u),this.eventGenerator_=new St(this.query_)}return e.prototype.getQuery=function(){return this.query_},e.prototype.getServerCache=function(){return this.viewCache_.getServerCache().getNode()},e.prototype.getCompleteServerCache=function(e){var t=this.viewCache_.getCompleteServerSnap();return t&&(this.query_.getQueryParams().loadsAllData()||!e.isEmpty()&&!t.getImmediateChild(e.getFront()).isEmpty())?t.getChild(e):null},e.prototype.isEmpty=function(){return 0===this.eventRegistrations_.length},e.prototype.addEventRegistration=function(e){this.eventRegistrations_.push(e)},e.prototype.removeEventRegistration=function(e,t){var n=[];if(t){a.assert(null==e,"A cancel should cancel all event registrations.");var r=this.query_.path;this.eventRegistrations_.forEach((function(e){var i=e.createCancelEvent(t=t,r);i&&n.push(i)}))}if(e){for(var i=[],o=0;o<this.eventRegistrations_.length;++o){var s=this.eventRegistrations_[o];if(s.matches(e)){if(e.hasAnyCallback()){i=i.concat(this.eventRegistrations_.slice(o+1));break}}else i.push(s)}this.eventRegistrations_=i}else this.eventRegistrations_=[];return n},e.prototype.applyOperation=function(e,t,n){e.type===ut.MERGE&&null!==e.source.queryId&&(a.assert(this.viewCache_.getCompleteServerSnap(),"We should always have a full cache before handling merges"),a.assert(this.viewCache_.getCompleteEventSnap(),"Missing event cache, even though we have a server cache"));var r=this.viewCache_,i=this.processor_.applyOperation(r,e,t,n);return this.processor_.assertIndexed(i.viewCache),a.assert(i.viewCache.getServerCache().isFullyInitialized()||!r.getServerCache().isFullyInitialized(),"Once a server snap is complete, it should never go back"),this.viewCache_=i.viewCache,this.generateEventsForChanges_(i.changes,i.viewCache.getEventCache().getNode(),null)},e.prototype.getInitialEvents=function(e){var t=this.viewCache_.getEventCache(),n=[];return t.getNode().isLeafNode()||t.getNode().forEachChild(Pe,(function(e,t){n.push(gt.childAddedChange(e,t))})),t.isFullyInitialized()&&n.push(gt.valueChange(t.getNode())),this.generateEventsForChanges_(n,t.getNode(),e)},e.prototype.generateEventsForChanges_=function(e,t,n){return this.eventGenerator_.generateEventsForChanges(e,t,n?[n]:this.eventRegistrations_)},e}(),Nt=function(){function e(){this.views=new Map}return Object.defineProperty(e,"__referenceConstructor",{get:function(){return a.assert(at,"Reference.ts has not been loaded"),at},set:function(e){a.assert(!at,"__referenceConstructor has already been defined"),at=e},enumerable:!1,configurable:!0}),e.prototype.isEmpty=function(){return 0===this.views.size},e.prototype.applyOperation=function(e,t,n){var r,i,o=e.source.queryId;if(null!==o){var l=this.views.get(o);return a.assert(null!=l,"SyncTree gave us an op for an invalid query."),l.applyOperation(e,t,n)}var u=[];try{for(var h=s.__values(this.views.values()),c=h.next();!c.done;c=h.next())u=u.concat((l=c.value).applyOperation(e,t,n))}catch(p){r={error:p}}finally{try{c&&!c.done&&(i=h.return)&&i.call(h)}finally{if(r)throw r.error}}return u},e.prototype.addEventRegistration=function(e,t,n,r,i){var o=e.queryIdentifier(),s=this.views.get(o);if(!s){var a=n.calcCompleteEventCache(i?r:null),l=!1;a?l=!0:r instanceof Qe?(a=n.calcCompleteEventChildren(r),l=!1):(a=Qe.EMPTY_NODE,l=!1);var u=new vt(new yt(a,l,!1),new yt(r,i,!1));s=new It(e,u),this.views.set(o,s)}return s.addEventRegistration(t),s.getInitialEvents(t)},e.prototype.removeEventRegistration=function(t,n,r){var i,o,a=t.queryIdentifier(),l=[],u=[],h=this.hasCompleteView();if("default"===a)try{for(var c=s.__values(this.views.entries()),p=c.next();!p.done;p=c.next()){var d,f=s.__read(p.value,2),_=f[0];u=u.concat((d=f[1]).removeEventRegistration(n,r)),d.isEmpty()&&(this.views.delete(_),d.getQuery().getQueryParams().loadsAllData()||l.push(d.getQuery()))}}catch(y){i={error:y}}finally{try{p&&!p.done&&(o=c.return)&&o.call(c)}finally{if(i)throw i.error}}else(d=this.views.get(a))&&(u=u.concat(d.removeEventRegistration(n,r)),d.isEmpty()&&(this.views.delete(a),d.getQuery().getQueryParams().loadsAllData()||l.push(d.getQuery())));return h&&!this.hasCompleteView()&&l.push(new e.__referenceConstructor(t.repo,t.path)),{removed:l,events:u}},e.prototype.getQueryViews=function(){var e,t,n=[];try{for(var r=s.__values(this.views.values()),i=r.next();!i.done;i=r.next()){var o=i.value;o.getQuery().getQueryParams().loadsAllData()||n.push(o)}}catch(a){e={error:a}}finally{try{i&&!i.done&&(t=r.return)&&t.call(r)}finally{if(e)throw e.error}}return n},e.prototype.getCompleteServerCache=function(e){var t,n,r=null;try{for(var i=s.__values(this.views.values()),o=i.next();!o.done;o=i.next())r=r||o.value.getCompleteServerCache(e)}catch(a){t={error:a}}finally{try{o&&!o.done&&(n=i.return)&&n.call(i)}finally{if(t)throw t.error}}return r},e.prototype.viewForQuery=function(e){if(e.getQueryParams().loadsAllData())return this.getCompleteView();var t=e.queryIdentifier();return this.views.get(t)},e.prototype.viewExistsForQuery=function(e){return null!=this.viewForQuery(e)},e.prototype.hasCompleteView=function(){return null!=this.getCompleteView()},e.prototype.getCompleteView=function(){var e,t;try{for(var n=s.__values(this.views.values()),r=n.next();!r.done;r=n.next()){var i=r.value;if(i.getQuery().getQueryParams().loadsAllData())return i}}catch(o){e={error:o}}finally{try{r&&!r.done&&(t=n.return)&&t.call(n)}finally{if(e)throw e.error}}return null},e}(),Pt=function(){function e(e){this.writeTree_=e}return e.prototype.addWrite=function(t,n){if(t.isEmpty())return new e(new pt(n));var r=this.writeTree_.findRootMostValueAndPath(t);if(null!=r){var i=r.path,o=r.value,s=$.relativePath(i,t);return o=o.updateChild(s,n),new e(this.writeTree_.set(i,o))}var a=new pt(n);return new e(this.writeTree_.setTree(t,a))},e.prototype.addWrites=function(e,t){var n=this;return A(t,(function(t,r){n=n.addWrite(e.child(t),r)})),n},e.prototype.removeWrite=function(t){return t.isEmpty()?e.Empty:new e(this.writeTree_.setTree(t,pt.Empty))},e.prototype.hasCompleteWrite=function(e){return null!=this.getCompleteNode(e)},e.prototype.getCompleteNode=function(e){var t=this.writeTree_.findRootMostValueAndPath(e);return null!=t?this.writeTree_.get(t.path).getChild($.relativePath(t.path,e)):null},e.prototype.getCompleteChildren=function(){var e=[],t=this.writeTree_.value;return null!=t?t.isLeafNode()||t.forEachChild(Pe,(function(t,n){e.push(new Ee(t,n))})):this.writeTree_.children.inorderTraversal((function(t,n){null!=n.value&&e.push(new Ee(t,n.value))})),e},e.prototype.childCompoundWrite=function(t){if(t.isEmpty())return this;var n=this.getCompleteNode(t);return new e(null!=n?new pt(n):this.writeTree_.subtree(t))},e.prototype.isEmpty=function(){return this.writeTree_.isEmpty()},e.prototype.apply=function(e){return function e(t,n,r){if(null!=n.value)return r.updateChild(t,n.value);var i=null;return n.children.inorderTraversal((function(n,o){".priority"===n?(a.assert(null!==o.value,"Priority writes must always be leaf nodes"),i=o.value):r=e(t.child(n),o,r)})),r.getChild(t).isEmpty()||null===i||(r=r.updateChild(t.child(".priority"),i)),r}($.Empty,this.writeTree_,e)},e.Empty=new e(new pt(null)),e}(),Rt=function(){function e(){this.visibleWrites_=Pt.Empty,this.allWrites_=[],this.lastWriteId_=-1}return e.prototype.childWrites=function(e){return new xt(e,this)},e.prototype.addOverwrite=function(e,t,n,r){a.assert(n>this.lastWriteId_,"Stacking an older write on top of newer ones"),void 0===r&&(r=!0),this.allWrites_.push({path:e,snap:t,writeId:n,visible:r}),r&&(this.visibleWrites_=this.visibleWrites_.addWrite(e,t)),this.lastWriteId_=n},e.prototype.addMerge=function(e,t,n){a.assert(n>this.lastWriteId_,"Stacking an older merge on top of newer ones"),this.allWrites_.push({path:e,children:t,writeId:n,visible:!0}),this.visibleWrites_=this.visibleWrites_.addWrites(e,t),this.lastWriteId_=n},e.prototype.getWrite=function(e){for(var t=0;t<this.allWrites_.length;t++){var n=this.allWrites_[t];if(n.writeId===e)return n}return null},e.prototype.removeWrite=function(e){var t=this,n=this.allWrites_.findIndex((function(t){return t.writeId===e}));a.assert(n>=0,"removeWrite called with nonexistent writeId.");var r=this.allWrites_[n];this.allWrites_.splice(n,1);for(var i=r.visible,o=!1,s=this.allWrites_.length-1;i&&s>=0;){var l=this.allWrites_[s];l.visible&&(s>=n&&this.recordContainsPath_(l,r.path)?i=!1:r.path.contains(l.path)&&(o=!0)),s--}return!!i&&(o?(this.resetTree_(),!0):(r.snap?this.visibleWrites_=this.visibleWrites_.removeWrite(r.path):A(r.children,(function(e){t.visibleWrites_=t.visibleWrites_.removeWrite(r.path.child(e))})),!0))},e.prototype.getCompleteWriteData=function(e){return this.visibleWrites_.getCompleteNode(e)},e.prototype.calcCompleteEventCache=function(t,n,r,i){if(r||i){var o=this.visibleWrites_.childCompoundWrite(t);return!i&&o.isEmpty()?n:i||null!=n||o.hasCompleteWrite($.Empty)?e.layerTree_(this.allWrites_,(function(e){return(e.visible||i)&&(!r||!~r.indexOf(e.writeId))&&(e.path.contains(t)||t.contains(e.path))}),t).apply(n||Qe.EMPTY_NODE):null}var s=this.visibleWrites_.getCompleteNode(t);if(null!=s)return s;var a=this.visibleWrites_.childCompoundWrite(t);return a.isEmpty()?n:null!=n||a.hasCompleteWrite($.Empty)?a.apply(n||Qe.EMPTY_NODE):null},e.prototype.calcCompleteEventChildren=function(e,t){var n=Qe.EMPTY_NODE,r=this.visibleWrites_.getCompleteNode(e);if(r)return r.isLeafNode()||r.forEachChild(Pe,(function(e,t){n=n.updateImmediateChild(e,t)})),n;if(t){var i=this.visibleWrites_.childCompoundWrite(e);return t.forEachChild(Pe,(function(e,t){var r=i.childCompoundWrite(new $(e)).apply(t);n=n.updateImmediateChild(e,r)})),i.getCompleteChildren().forEach((function(e){n=n.updateImmediateChild(e.name,e.node)})),n}return this.visibleWrites_.childCompoundWrite(e).getCompleteChildren().forEach((function(e){n=n.updateImmediateChild(e.name,e.node)})),n},e.prototype.calcEventCacheAfterServerOverwrite=function(e,t,n,r){a.assert(n||r,"Either existingEventSnap or existingServerSnap must exist");var i=e.child(t);if(this.visibleWrites_.hasCompleteWrite(i))return null;var o=this.visibleWrites_.childCompoundWrite(i);return o.isEmpty()?r.getChild(t):o.apply(r.getChild(t))},e.prototype.calcCompleteChild=function(e,t,n){var r=e.child(t),i=this.visibleWrites_.getCompleteNode(r);return null!=i?i:n.isCompleteForChild(t)?this.visibleWrites_.childCompoundWrite(r).apply(n.getNode().getImmediateChild(t)):null},e.prototype.shadowingWrite=function(e){return this.visibleWrites_.getCompleteNode(e)},e.prototype.calcIndexedSlice=function(e,t,n,r,i,o){var s,a=this.visibleWrites_.childCompoundWrite(e),l=a.getCompleteNode($.Empty);if(null!=l)s=l;else{if(null==t)return[];s=a.apply(t)}if((s=s.withIndex(o)).isEmpty()||s.isLeafNode())return[];for(var u=[],h=o.getCompare(),c=i?s.getReverseIteratorFrom(n,o):s.getIteratorFrom(n,o),p=c.getNext();p&&u.length<r;)0!==h(p,n)&&u.push(p),p=c.getNext();return u},e.prototype.recordContainsPath_=function(e,t){if(e.snap)return e.path.contains(t);for(var n in e.children)if(e.children.hasOwnProperty(n)&&e.path.child(n).contains(t))return!0;return!1},e.prototype.resetTree_=function(){this.visibleWrites_=e.layerTree_(this.allWrites_,e.DefaultFilter_,$.Empty),this.lastWriteId_=this.allWrites_.length>0?this.allWrites_[this.allWrites_.length-1].writeId:-1},e.DefaultFilter_=function(e){return e.visible},e.layerTree_=function(e,t,n){for(var r=Pt.Empty,i=0;i<e.length;++i){var o=e[i];if(t(o)){var s=o.path,l=void 0;if(o.snap)n.contains(s)?(l=$.relativePath(n,s),r=r.addWrite(l,o.snap)):s.contains(n)&&(l=$.relativePath(s,n),r=r.addWrite($.Empty,o.snap.getChild(l)));else{if(!o.children)throw a.assertionError("WriteRecord should have .snap or .children");if(n.contains(s))l=$.relativePath(n,s),r=r.addWrites(l,o.children);else if(s.contains(n))if((l=$.relativePath(s,n)).isEmpty())r=r.addWrites($.Empty,o.children);else{var u=a.safeGet(o.children,l.getFront());if(u){var h=u.getChild(l.popFront());r=r.addWrite($.Empty,h)}}}}}return r},e}(),xt=function(){function e(e,t){this.treePath_=e,this.writeTree_=t}return e.prototype.calcCompleteEventCache=function(e,t,n){return this.writeTree_.calcCompleteEventCache(this.treePath_,e,t,n)},e.prototype.calcCompleteEventChildren=function(e){return this.writeTree_.calcCompleteEventChildren(this.treePath_,e)},e.prototype.calcEventCacheAfterServerOverwrite=function(e,t,n){return this.writeTree_.calcEventCacheAfterServerOverwrite(this.treePath_,e,t,n)},e.prototype.shadowingWrite=function(e){return this.writeTree_.shadowingWrite(this.treePath_.child(e))},e.prototype.calcIndexedSlice=function(e,t,n,r,i){return this.writeTree_.calcIndexedSlice(this.treePath_,e,t,n,r,i)},e.prototype.calcCompleteChild=function(e,t){return this.writeTree_.calcCompleteChild(this.treePath_,e,t)},e.prototype.child=function(t){return new e(this.treePath_.child(t),this.writeTree_)},e}(),Dt=function(){function e(e){this.listenProvider_=e,this.syncPointTree_=pt.Empty,this.pendingWriteTree_=new 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this.applyOperationToSyncPoints_(new dt(ht.Server,e))},e.prototype.applyTaggedQueryOverwrite=function(t,n,r){var i=this.queryKeyForTag_(r);if(null!=i){var o=e.parseQueryKey_(i),s=o.path,a=o.queryId,l=$.relativePath(s,t),u=new ft(ht.forServerTaggedQuery(a),l,n);return this.applyTaggedOperation_(s,u)}return[]},e.prototype.applyTaggedQueryMerge=function(t,n,r){var i=this.queryKeyForTag_(r);if(i){var o=e.parseQueryKey_(i),s=o.path,a=o.queryId,l=$.relativePath(s,t),u=pt.fromObject(n),h=new _t(ht.forServerTaggedQuery(a),l,u);return this.applyTaggedOperation_(s,h)}return[]},e.prototype.applyTaggedListenComplete=function(t,n){var r=this.queryKeyForTag_(n);if(r){var i=e.parseQueryKey_(r),o=i.path,s=i.queryId,a=$.relativePath(o,t),l=new dt(ht.forServerTaggedQuery(s),a);return this.applyTaggedOperation_(o,l)}return[]},e.prototype.addEventRegistration=function(t,n){var r=t.path,i=null,o=!1;this.syncPointTree_.foreachOnPath(r,(function(e,t){var n=$.relativePath(e,r);i=i||t.getCompleteServerCache(n),o=o||t.hasCompleteView()}));var s,l=this.syncPointTree_.get(r);l?(o=o||l.hasCompleteView(),i=i||l.getCompleteServerCache($.Empty)):(l=new Nt,this.syncPointTree_=this.syncPointTree_.set(r,l)),null!=i?s=!0:(s=!1,i=Qe.EMPTY_NODE,this.syncPointTree_.subtree(r).foreachChild((function(e,t){var n=t.getCompleteServerCache($.Empty);n&&(i=i.updateImmediateChild(e,n))})));var u=l.viewExistsForQuery(t);if(!u&&!t.getQueryParams().loadsAllData()){var h=e.makeQueryKey_(t);a.assert(!this.queryToTagMap.has(h),"View does not exist, but we have a tag");var c=e.getNextQueryTag_();this.queryToTagMap.set(h,c),this.tagToQueryMap.set(c,h)}var p=this.pendingWriteTree_.childWrites(r),d=l.addEventRegistration(t,n,p,i,s);if(!u&&!o){var f=l.viewForQuery(t);d=d.concat(this.setupListener_(t,f))}return d},e.prototype.removeEventRegistration=function(t,n,r){var i=this,o=t.path,s=this.syncPointTree_.get(o),a=[];if(s&&("default"===t.queryIdentifier()||s.viewExistsForQuery(t))){var l=s.removeEventRegistration(t,n,r);s.isEmpty()&&(this.syncPointTree_=this.syncPointTree_.remove(o));var u=l.removed;a=l.events;var h=-1!==u.findIndex((function(e){return e.getQueryParams().loadsAllData()})),c=this.syncPointTree_.findOnPath(o,(function(e,t){return t.hasCompleteView()}));if(h&&!c){var p=this.syncPointTree_.subtree(o);if(!p.isEmpty())for(var d=this.collectDistinctViewsForSubTree_(p),f=0;f<d.length;++f){var _=d[f],y=_.getQuery(),v=this.createListenerForView_(_);this.listenProvider_.startListening(e.queryForListening_(y),this.tagForQuery_(y),v.hashFn,v.onComplete)}}!c&&u.length>0&&!r&&(h?this.listenProvider_.stopListening(e.queryForListening_(t),null):u.forEach((function(t){var n=i.queryToTagMap.get(e.makeQueryKey_(t));i.listenProvider_.stopListening(e.queryForListening_(t),n)}))),this.removeTags_(u)}return a},e.prototype.calcCompleteEventCache=function(e,t){var n=this.pendingWriteTree_,r=this.syncPointTree_.findOnPath(e,(function(t,n){var r=$.relativePath(t,e),i=n.getCompleteServerCache(r);if(i)return i}));return n.calcCompleteEventCache(e,r,t,!0)},e.prototype.collectDistinctViewsForSubTree_=function(e){return e.fold((function(e,t,n){if(t&&t.hasCompleteView())return[t.getCompleteView()];var r=[];return t&&(r=t.getQueryViews()),A(n,(function(e,t){r=r.concat(t)})),r}))},e.prototype.removeTags_=function(t){for(var n=0;n<t.length;++n){var r=t[n];if(!r.getQueryParams().loadsAllData()){var i=e.makeQueryKey_(r),o=this.queryToTagMap.get(i);this.queryToTagMap.delete(i),this.tagToQueryMap.delete(o)}}},e.queryForListening_=function(e){return e.getQueryParams().loadsAllData()&&!e.getQueryParams().isDefault()?e.getRef():e},e.prototype.setupListener_=function(t,n){var r=t.path,i=this.tagForQuery_(t),o=this.createListenerForView_(n),s=this.listenProvider_.startListening(e.queryForListening_(t),i,o.hashFn,o.onComplete),l=this.syncPointTree_.subtree(r);if(i)a.assert(!l.value.hasCompleteView(),"If we're adding a query, it shouldn't be shadowed");else for(var u=l.fold((function(e,t,n){if(!e.isEmpty()&&t&&t.hasCompleteView())return[t.getCompleteView().getQuery()];var r=[];return t&&(r=r.concat(t.getQueryViews().map((function(e){return e.getQuery()})))),A(n,(function(e,t){r=r.concat(t)})),r})),h=0;h<u.length;++h){var c=u[h];this.listenProvider_.stopListening(e.queryForListening_(c),this.tagForQuery_(c))}return s},e.prototype.createListenerForView_=function(e){var t=this,n=e.getQuery(),r=this.tagForQuery_(n);return{hashFn:function(){return(e.getServerCache()||Qe.EMPTY_NODE).hash()},onComplete:function(e){if("ok"===e)return r?t.applyTaggedListenComplete(n.path,r):t.applyListenComplete(n.path);var i=function(e,t){var n="Unknown Error";"too_big"===e?n="The 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r=this.pendingWriteTree_.childWrites(e);return n.applyOperation(t,r,null)},e.prototype.applyOperationToSyncPoints_=function(e){return this.applyOperationHelper_(e,this.syncPointTree_,null,this.pendingWriteTree_.childWrites($.Empty))},e.prototype.applyOperationHelper_=function(e,t,n,r){if(e.path.isEmpty())return this.applyOperationDescendantsHelper_(e,t,n,r);var i=t.get($.Empty);null==n&&null!=i&&(n=i.getCompleteServerCache($.Empty));var o=[],s=e.path.getFront(),a=e.operationForChild(s),l=t.children.get(s);if(l&&a){var u=n?n.getImmediateChild(s):null,h=r.child(s);o=o.concat(this.applyOperationHelper_(a,l,u,h))}return i&&(o=o.concat(i.applyOperation(e,r,n))),o},e.prototype.applyOperationDescendantsHelper_=function(e,t,n,r){var i=this,o=t.get($.Empty);null==n&&null!=o&&(n=o.getCompleteServerCache($.Empty));var s=[];return t.children.inorderTraversal((function(t,o){var a=n?n.getImmediateChild(t):null,l=r.child(t),u=e.operationForChild(t);u&&(s=s.concat(i.applyOperationDescendantsHelper_(u,o,a,l)))})),o&&(s=s.concat(o.applyOperation(e,r,n))),s},e.nextQueryTag_=1,e}(),kt=function(){function e(){this.rootNode_=Qe.EMPTY_NODE}return e.prototype.getNode=function(e){return this.rootNode_.getChild(e)},e.prototype.updateSnapshot=function(e,t){this.rootNode_=this.rootNode_.updateChild(e,t)},e}(),Ot=function(){function e(e,t){var n=this;this.app_=e,this.authProvider_=t,this.auth_=null,this.auth_=t.getImmediate({optional:!0}),this.auth_||t.get().then((function(e){return n.auth_=e}))}return e.prototype.getToken=function(e){return this.auth_?this.auth_.getToken(e).catch((function(e){return e&&"auth/token-not-initialized"===e.code?(w("Got auth/token-not-initialized error.  Treating as null token."),null):Promise.reject(e)})):Promise.resolve(null)},e.prototype.addTokenChangeListener=function(e){this.auth_?this.auth_.addAuthTokenListener(e):(setTimeout((function(){return e(null)}),0),this.authProvider_.get().then((function(t){return t.addAuthTokenListener(e)})))},e.prototype.removeTokenChangeListener=function(e){this.authProvider_.get().then((function(t){return t.removeAuthTokenListener(e)}))},e.prototype.notifyForInvalidToken=function(){var e='Provided authentication credentials for the app named "'+this.app_.name+'" are invalid. This usually indicates your app was not initialized correctly. ';I(e+="credential"in this.app_.options?'Make sure the "credential" property provided to initializeApp() is authorized to access the specified "databaseURL" and is from the correct project.':"serviceAccount"in this.app_.options?'Make sure the "serviceAccount" property provided to initializeApp() is authorized to access the specified "databaseURL" and is from the correct project.':'Make sure the "apiKey" and "databaseURL" properties provided to initializeApp() match the values provided for your app at https://console.firebase.google.com/.')},e}(),Ft=function(){function e(){this.counters_={}}return e.prototype.incrementCounter=function(e,t){void 0===t&&(t=1),a.contains(this.counters_,e)||(this.counters_[e]=0),this.counters_[e]+=t},e.prototype.get=function(){return a.deepCopy(this.counters_)},e}(),At=function(){function e(){}return e.getCollection=function(e){var t=e.toString();return this.collections_[t]||(this.collections_[t]=new Ft),this.collections_[t]},e.getOrCreateReporter=function(e,t){var n=e.toString();return this.reporters_[n]||(this.reporters_[n]=t()),this.reporters_[n]},e.collections_={},e.reporters_={},e}(),Lt=function(){function e(e){this.collection_=e,this.last_=null}return e.prototype.get=function(){var e=this.collection_.get(),t=s.__assign({},e);return this.last_&&A(this.last_,(function(e,n){t[e]=t[e]-n})),this.last_=e,t},e}(),Mt=function(){function e(e,t){this.server_=t,this.statsToReport_={},this.statsListener_=new Lt(e);var n=1e4+2e4*Math.random();X(this.reportStats_.bind(this),Math.floor(n))}return e.prototype.includeStat=function(e){this.statsToReport_[e]=!0},e.prototype.reportStats_=function(){var e=this,t=this.statsListener_.get(),n={},r=!1;A(t,(function(t,i){i>0&&a.contains(e.statsToReport_,t)&&(n[t]=i,r=!0)})),r&&this.server_.reportStats(n),X(this.reportStats_.bind(this),Math.floor(2*Math.random()*3e5))},e}(),Wt=function(){function e(){this.eventLists_=[],this.recursionDepth_=0}return e.prototype.queueEvents=function(e){for(var t=null,n=0;n<e.length;n++){var r=e[n],i=r.getPath();null===t||i.equals(t.getPath())||(this.eventLists_.push(t),t=null),null===t&&(t=new qt(i)),t.add(r)}t&&this.eventLists_.push(t)},e.prototype.raiseEventsAtPath=function(e,t){this.queueEvents(t),this.raiseQueuedEventsMatchingPredicate_((function(t){return t.equals(e)}))},e.prototype.raiseEventsForChangedPath=function(e,t){this.queueEvents(t),this.raiseQueuedEventsMatchingPredicate_((function(t){return t.contains(e)||e.contains(t)}))},e.prototype.raiseQueuedEventsMatchingPredicate_=function(e){this.recursionDepth_++;for(var t=!0,n=0;n<this.eventLists_.length;n++){var r=this.eventLists_[n];r&&(e(r.getPath())?(this.eventLists_[n].raise(),this.eventLists_[n]=null):t=!1)}t&&(this.eventLists_=[]),this.recursionDepth_--},e}(),qt=function(){function e(e){this.path_=e,this.events_=[]}return e.prototype.add=function(e){this.events_.push(e)},e.prototype.raise=function(){for(var e=0;e<this.events_.length;e++){var t=this.events_[e];if(null!==t){this.events_[e]=null;var n=t.getEventRunner();m&&w("event: "+t.toString()),G(n)}}},e.prototype.getPath=function(){return this.path_},e}(),Qt=function(){function e(e){this.allowedEvents_=e,this.listeners_={},a.assert(Array.isArray(e)&&e.length>0,"Requires a non-empty array")}return e.prototype.trigger=function(e){for(var t=[],n=1;n<arguments.length;n++)t[n-1]=arguments[n];if(Array.isArray(this.listeners_[e]))for(var r=s.__spread(this.listeners_[e]),i=0;i<r.length;i++)r[i].callback.apply(r[i].context,t)},e.prototype.on=function(e,t,n){this.validateEventType_(e),this.listeners_[e]=this.listeners_[e]||[],this.listeners_[e].push({callback:t,context:n});var r=this.getInitialEvent(e);r&&t.apply(n,r)},e.prototype.off=function(e,t,n){this.validateEventType_(e);for(var r=this.listeners_[e]||[],i=0;i<r.length;i++)if(r[i].callback===t&&(!n||n===r[i].context))return void r.splice(i,1)},e.prototype.validateEventType_=function(e){a.assert(this.allowedEvents_.find((function(t){return t===e})),"Unknown event: "+e)},e}(),Ut=function(e){function t(){var t,n,r=e.call(this,["visible"])||this;return"undefined"!=typeof document&&void 0!==document.addEventListener&&(void 0!==document.hidden?(n="visibilitychange",t="hidden"):void 0!==document.mozHidden?(n="mozvisibilitychange",t="mozHidden"):void 0!==document.msHidden?(n="msvisibilitychange",t="msHidden"):void 0!==document.webkitHidden&&(n="webkitvisibilitychange",t="webkitHidden")),r.visible_=!0,n&&document.addEventListener(n,(function(){var e=!document[t];e!==r.visible_&&(r.visible_=e,r.trigger("visible",e))}),!1),r}return s.__extends(t,e),t.getInstance=function(){return new t},t.prototype.getInitialEvent=function(e){return a.assert("visible"===e,"Unknown event type: "+e),[this.visible_]},t}(Qt),Vt=function(e){function t(){var t=e.call(this,["online"])||this;return t.online_=!0,"undefined"==typeof window||void 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i.pendingResponses[i.currentResponseNum];for(var t=function(t){e[t]&&G((function(){n.onMessage_(e[t])}))},r=0;r<e.length;++r)t(r);if(i.currentResponseNum===i.closeAfterResponse)return i.onClose&&(i.onClose(),i.onClose=null),"break";i.currentResponseNum++},i=this;this.pendingResponses[this.currentResponseNum]&&"break"!==r(););},e}(),jt=function(){function e(e,t,n,r,i){this.connId=e,this.repoInfo=t,this.applicationId=n,this.transportSessionId=r,this.lastSessionId=i,this.bytesSent=0,this.bytesReceived=0,this.everConnected_=!1,this.log_=b(e),this.stats_=At.getCollection(t),this.urlFn=function(e){return t.connectionURL("long_polling",e)}}return e.prototype.open=function(e,t){var n=this;this.curSegmentNum=0,this.onDisconnect_=t,this.myPacketOrderer=new Ht(e),this.isClosed_=!1,this.connectTimeoutTimer_=setTimeout((function(){n.log_("Timed out trying to 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"+i);o?(n.scriptTagHolder.sendNewPolls=!1,n.myPacketOrderer.closeAfter(o,(function(){n.onClosed_()}))):n.onClosed_()}}),(function(){for(var e=[],t=0;t<arguments.length;t++)e[t]=arguments[t];var r=s.__read(e,2),i=r[0],o=r[1];n.incrementIncomingBytes_(e),n.myPacketOrderer.handleResponse(i,o)}),(function(){n.onClosed_()}),n.urlFn);var e={start:"t"};e.ser=Math.floor(1e8*Math.random()),n.scriptTagHolder.uniqueCallbackIdentifier&&(e.cb=n.scriptTagHolder.uniqueCallbackIdentifier),e.v="5",n.transportSessionId&&(e.s=n.transportSessionId),n.lastSessionId&&(e.ls=n.lastSessionId),n.applicationId&&(e.p=n.applicationId),"undefined"!=typeof location&&location.href&&-1!==location.href.indexOf("firebaseio.com")&&(e.r="f");var t=n.urlFn(e);n.log_("Connecting via long-poll to "+t),n.scriptTagHolder.addTag(t,(function(){}))}}))},e.prototype.start=function(){this.scriptTagHolder.startLongPoll(this.id,this.password),this.addDisconnectPingFrame(this.id,this.password)},e.forceAllow=function(){e.forceAllow_=!0},e.forceDisallow=function(){e.forceDisallow_=!0},e.isAvailable=function(){return!(a.isNodeSdk()||!e.forceAllow_&&(e.forceDisallow_||"undefined"==typeof document||null==document.createElement||"object"==typeof window&&window.chrome&&window.chrome.extension&&!/^chrome/.test(window.location.href)||"object"==typeof Windows&&"object"==typeof Windows.UI))},e.prototype.markConnectionHealthy=function(){},e.prototype.shutdown_=function(){this.isClosed_=!0,this.scriptTagHolder&&(this.scriptTagHolder.close(),this.scriptTagHolder=null),this.myDisconnFrame&&(document.body.removeChild(this.myDisconnFrame),this.myDisconnFrame=null),this.connectTimeoutTimer_&&(clearTimeout(this.connectTimeoutTimer_),this.connectTimeoutTimer_=null)},e.prototype.onClosed_=function(){this.isClosed_||(this.log_("Longpoll is closing itself"),this.shutdown_(),this.onDisconnect_&&(this.onDisconnect_(this.everConnected_),this.onDisconnect_=null))},e.prototype.close=function(){this.isClosed_||(this.log_("Longpoll is being closed."),this.shutdown_())},e.prototype.send=function(e){var t=a.stringify(e);this.bytesSent+=t.length,this.stats_.incrementCounter("bytes_sent",t.length);for(var n=a.base64Encode(t),r=F(n,1840),i=0;i<r.length;i++)this.scriptTagHolder.enqueueSegment(this.curSegmentNum,r.length,r[i]),this.curSegmentNum++},e.prototype.addDisconnectPingFrame=function(e,t){if(!a.isNodeSdk()){this.myDisconnFrame=document.createElement("iframe");var n={dframe:"t"};n.id=e,n.pw=t,this.myDisconnFrame.src=this.urlFn(n),this.myDisconnFrame.style.display="none",document.body.appendChild(this.myDisconnFrame)}},e.prototype.incrementIncomingBytes_=function(e){var t=a.stringify(e).length;this.bytesReceived+=t,this.stats_.incrementCounter("bytes_received",t)},e}(),Bt=function(){function e(t,n,r,i){if(this.onDisconnect=r,this.urlFn=i,this.outstandingRequests=new Set,this.pendingSegs=[],this.currentSerial=Math.floor(1e8*Math.random()),this.sendNewPolls=!0,a.isNodeSdk())this.commandCB=t,this.onMessageCB=n;else{this.uniqueCallbackIdentifier=y(),window["pLPCommand"+this.uniqueCallbackIdentifier]=t,window["pRTLPCB"+this.uniqueCallbackIdentifier]=n,this.myIFrame=e.createIFrame_();var o="";this.myIFrame.src&&"javascript:"===this.myIFrame.src.substr(0,"javascript:".length)&&(o='<script>document.domain="'+document.domain+'";<\/script>');var s="<html><body>"+o+"</body></html>";try{this.myIFrame.doc.open(),this.myIFrame.doc.write(s),this.myIFrame.doc.close()}catch(l){w("frame writing exception"),l.stack&&w(l.stack),w(l)}}}return e.createIFrame_=function(){var e=document.createElement("iframe");if(e.style.display="none",!document.body)throw"Document body has not initialized. Wait to initialize Firebase until after the document is ready.";document.body.appendChild(e);try{e.contentWindow.document||w("No IE domain setting required")}catch(n){var t=document.domain;e.src="javascript:void((function(){document.open();document.domain='"+t+"';document.close();})())"}return e.contentDocument?e.doc=e.contentDocument:e.contentWindow?e.doc=e.contentWindow.document:e.document&&(e.doc=e.document),e},e.prototype.close=function(){var e=this;this.alive=!1,this.myIFrame&&(this.myIFrame.doc.body.innerHTML="",setTimeout((function(){null!==e.myIFrame&&(document.body.removeChild(e.myIFrame),e.myIFrame=null)}),Math.floor(0)));var t=this.onDisconnect;t&&(this.onDisconnect=null,t())},e.prototype.startLongPoll=function(e,t){for(this.myID=e,this.myPW=t,this.alive=!0;this.newRequest_(););},e.prototype.newRequest_=function(){if(this.alive&&this.sendNewPolls&&this.outstandingRequests.size<(this.pendingSegs.length>0?2:1)){this.currentSerial++;var e={};e.id=this.myID,e.pw=this.myPW,e.ser=this.currentSerial;for(var t=this.urlFn(e),n="",r=0;this.pendingSegs.length>0&&this.pendingSegs[0].d.length+30+n.length<=1870;){var i=this.pendingSegs.shift();n=n+"&seg"+r+"="+i.seg+"&ts"+r+"="+i.ts+"&d"+r+"="+i.d,r++}return this.addLongPollTag_(t+=n,this.currentSerial),!0}return!1},e.prototype.enqueueSegment=function(e,t,n){this.pendingSegs.push({seg:e,ts:t,d:n}),this.alive&&this.newRequest_()},e.prototype.addLongPollTag_=function(e,t){var n=this;this.outstandingRequests.add(t);var r=function(){n.outstandingRequests.delete(t),n.newRequest_()},i=setTimeout(r,Math.floor(25e3));this.addTag(e,(function(){clearTimeout(i),r()}))},e.prototype.addTag=function(e,t){var n=this;a.isNodeSdk()?this.doNodeLongPoll(e,t):setTimeout((function(){try{if(!n.sendNewPolls)return;var r=n.myIFrame.doc.createElement("script");r.type="text/javascript",r.async=!0,r.src=e,r.onload=r.onreadystatechange=function(){var e=r.readyState;e&&"loaded"!==e&&"complete"!==e||(r.onload=r.onreadystatechange=null,r.parentNode&&r.parentNode.removeChild(r),t())},r.onerror=function(){w("Long-poll script failed to load: "+e),n.sendNewPolls=!1,n.close()},n.myIFrame.doc.body.appendChild(r)}catch(i){}}),Math.floor(1))},e}(),Kt="",Yt=null;"undefined"!=typeof MozWebSocket?Yt=MozWebSocket:"undefined"!=typeof WebSocket&&(Yt=WebSocket);var zt=function(){function e(t,n,r,i,o){this.connId=t,this.applicationId=r,this.keepaliveTimer=null,this.frames=null,this.totalFrames=0,this.bytesSent=0,this.bytesReceived=0,this.log_=b(this.connId),this.stats_=At.getCollection(n),this.connURL=e.connectionURL_(n,i,o)}return e.connectionURL_=function(e,t,n){var r={v:"5"};return!a.isNodeSdk()&&"undefined"!=typeof location&&location.href&&-1!==location.href.indexOf("firebaseio.com")&&(r.r="f"),t&&(r.s=t),n&&(r.ls=n),e.connectionURL("websocket",r)},e.prototype.open=function(e,t){var n=this;this.onDisconnect=t,this.onMessage=e,this.log_("Websocket connecting to "+this.connURL),this.everConnected_=!1,d.set("previous_websocket_failure",!0);try{if(a.isNodeSdk()){var r={headers:{"User-Agent":"Firebase/5/"+Kt+"/"+process.platform+"/"+(a.CONSTANTS.NODE_ADMIN?"AdminNode":"Node"),"X-Firebase-GMPID":this.applicationId||""}},i=process.env,o=0===this.connURL.indexOf("wss://")?i.HTTPS_PROXY||i.https_proxy:i.HTTP_PROXY||i.http_proxy;o&&(r.proxy={origin:o}),this.mySock=new Yt(this.connURL,[],r)}else this.mySock=new Yt(this.connURL,[],r={headers:{"X-Firebase-GMPID":this.applicationId||""}})}catch(l){this.log_("Error instantiating WebSocket.");var s=l.message||l.data;return s&&this.log_(s),void this.onClosed_()}this.mySock.onopen=function(){n.log_("Websocket connected."),n.everConnected_=!0},this.mySock.onclose=function(){n.log_("Websocket connection was disconnected."),n.mySock=null,n.onClosed_()},this.mySock.onmessage=function(e){n.handleIncomingFrame(e)},this.mySock.onerror=function(e){n.log_("WebSocket error.  Closing connection.");var t=e.message||e.data;t&&n.log_(t),n.onClosed_()}},e.prototype.start=function(){},e.forceDisallow=function(){e.forceDisallow_=!0},e.isAvailable=function(){var t=!1;if("undefined"!=typeof navigator&&navigator.userAgent){var n=navigator.userAgent.match(/Android ([0-9]{0,}\.[0-9]{0,})/);n&&n.length>1&&parseFloat(n[1])<4.4&&(t=!0)}return!t&&null!==Yt&&!e.forceDisallow_},e.previouslyFailed=function(){return d.isInMemoryStorage||!0===d.get("previous_websocket_failure")},e.prototype.markConnectionHealthy=function(){d.remove("previous_websocket_failure")},e.prototype.appendFrame_=function(e){if(this.frames.push(e),this.frames.length===this.totalFrames){var t=this.frames.join("");this.frames=null;var n=a.jsonEval(t);this.onMessage(n)}},e.prototype.handleNewFrameCount_=function(e){this.totalFrames=e,this.frames=[]},e.prototype.extractFrameCount_=function(e){if(a.assert(null===this.frames,"We already have a frame buffer"),e.length<=6){var t=Number(e);if(!isNaN(t))return this.handleNewFrameCount_(t),null}return this.handleNewFrameCount_(1),e},e.prototype.handleIncomingFrame=function(e){if(null!==this.mySock){var t=e.data;if(this.bytesReceived+=t.length,this.stats_.incrementCounter("bytes_received",t.length),this.resetKeepAlive(),null!==this.frames)this.appendFrame_(t);else{var n=this.extractFrameCount_(t);null!==n&&this.appendFrame_(n)}}},e.prototype.send=function(e){this.resetKeepAlive();var t=a.stringify(e);this.bytesSent+=t.length,this.stats_.incrementCounter("bytes_sent",t.length);var n=F(t,16384);n.length>1&&this.sendString_(String(n.length));for(var r=0;r<n.length;r++)this.sendString_(n[r])},e.prototype.shutdown_=function(){this.isClosed_=!0,this.keepaliveTimer&&(clearInterval(this.keepaliveTimer),this.keepaliveTimer=null),this.mySock&&(this.mySock.close(),this.mySock=null)},e.prototype.onClosed_=function(){this.isClosed_||(this.log_("WebSocket is closing itself"),this.shutdown_(),this.onDisconnect&&(this.onDisconnect(this.everConnected_),this.onDisconnect=null))},e.prototype.close=function(){this.isClosed_||(this.log_("WebSocket is being closed"),this.shutdown_())},e.prototype.resetKeepAlive=function(){var e=this;clearInterval(this.keepaliveTimer),this.keepaliveTimer=setInterval((function(){e.mySock&&e.sendString_("0"),e.resetKeepAlive()}),Math.floor(45e3))},e.prototype.sendString_=function(e){try{this.mySock.send(e)}catch(t){this.log_("Exception thrown from WebSocket.send():",t.message||t.data,"Closing connection."),setTimeout(this.onClosed_.bind(this),0)}},e.responsesRequiredToBeHealthy=2,e.healthyTimeout=3e4,e}(),Gt=function(){function e(e){this.initTransports_(e)}return Object.defineProperty(e,"ALL_TRANSPORTS",{get:function(){return[jt,zt]},enumerable:!1,configurable:!0}),e.prototype.initTransports_=function(t){var n,r,i=zt&&zt.isAvailable(),o=i&&!zt.previouslyFailed();if(t.webSocketOnly&&(i||I("wss:// URL used, but browser isn't known to support websockets.  Trying anyway."),o=!0),o)this.transports_=[zt];else{var a=this.transports_=[];try{for(var l=s.__values(e.ALL_TRANSPORTS),u=l.next();!u.done;u=l.next()){var h=u.value;h&&h.isAvailable()&&a.push(h)}}catch(c){n={error:c}}finally{try{u&&!u.done&&(r=l.return)&&r.call(l)}finally{if(n)throw n.error}}}},e.prototype.initialTransport=function(){if(this.transports_.length>0)return this.transports_[0];throw new Error("No transports available")},e.prototype.upgradeTransport=function(){return this.transports_.length>1?this.transports_[1]:null},e}(),Xt=function(){function e(e,t,n,r,i,o,s,a){this.id=e,this.repoInfo_=t,this.applicationId_=n,this.onMessage_=r,this.onReady_=i,this.onDisconnect_=o,this.onKill_=s,this.lastSessionId=a,this.connectionCount=0,this.pendingDataMessages=[],this.state_=0,this.log_=b("c:"+this.id+":"),this.transportManager_=new Gt(t),this.log_("Connection created"),this.start_()}return e.prototype.start_=function(){var e=this,t=this.transportManager_.initialTransport();this.conn_=new t(this.nextTransportId_(),this.repoInfo_,this.applicationId_,void 0,this.lastSessionId),this.primaryResponsesRequired_=t.responsesRequiredToBeHealthy||0;var n=this.connReceiver_(this.conn_),r=this.disconnReceiver_(this.conn_);this.tx_=this.conn_,this.rx_=this.conn_,this.secondaryConn_=null,this.isHealthy_=!1,setTimeout((function(){e.conn_&&e.conn_.open(n,r)}),Math.floor(0));var i=t.healthyTimeout||0;i>0&&(this.healthyTimeout_=X((function(){e.healthyTimeout_=null,e.isHealthy_||(e.conn_&&e.conn_.bytesReceived>102400?(e.log_("Connection exceeded healthy timeout but has received "+e.conn_.bytesReceived+" bytes.  Marking connection healthy."),e.isHealthy_=!0,e.conn_.markConnectionHealthy()):e.conn_&&e.conn_.bytesSent>10240?e.log_("Connection exceeded healthy timeout but has sent "+e.conn_.bytesSent+" bytes.  Leaving connection alive."):(e.log_("Closing unhealthy connection after timeout."),e.close()))}),Math.floor(i)))},e.prototype.nextTransportId_=function(){return"c:"+this.id+":"+this.connectionCount++},e.prototype.disconnReceiver_=function(e){var t=this;return function(n){e===t.conn_?t.onConnectionLost_(n):e===t.secondaryConn_?(t.log_("Secondary connection lost."),t.onSecondaryConnectionLost_()):t.log_("closing an old connection")}},e.prototype.connReceiver_=function(e){var t=this;return function(n){2!==t.state_&&(e===t.rx_?t.onPrimaryMessageReceived_(n):e===t.secondaryConn_?t.onSecondaryMessageReceived_(n):t.log_("message on old connection"))}},e.prototype.sendRequest=function(e){this.sendData_({t:"d",d:e})},e.prototype.tryCleanupConnection=function(){this.tx_===this.secondaryConn_&&this.rx_===this.secondaryConn_&&(this.log_("cleaning up and promoting a connection: "+this.secondaryConn_.connId),this.conn_=this.secondaryConn_,this.secondaryConn_=null)},e.prototype.onSecondaryControl_=function(e){if("t"in e){var t=e.t;"a"===t?this.upgradeIfSecondaryHealthy_():"r"===t?(this.log_("Got a reset on secondary, closing it"),this.secondaryConn_.close(),this.tx_!==this.secondaryConn_&&this.rx_!==this.secondaryConn_||this.close()):"o"===t&&(this.log_("got pong on secondary."),this.secondaryResponsesRequired_--,this.upgradeIfSecondaryHealthy_())}},e.prototype.onSecondaryMessageReceived_=function(e){var t=k("t",e),n=k("d",e);if("c"===t)this.onSecondaryControl_(n);else{if("d"!==t)throw new Error("Unknown protocol layer: "+t);this.pendingDataMessages.push(n)}},e.prototype.upgradeIfSecondaryHealthy_=function(){this.secondaryResponsesRequired_<=0?(this.log_("Secondary connection is healthy."),this.isHealthy_=!0,this.secondaryConn_.markConnectionHealthy(),this.proceedWithUpgrade_()):(this.log_("sending ping on secondary."),this.secondaryConn_.send({t:"c",d:{t:"p",d:{}}}))},e.prototype.proceedWithUpgrade_=function(){this.secondaryConn_.start(),this.log_("sending client ack on secondary"),this.secondaryConn_.send({t:"c",d:{t:"a",d:{}}}),this.log_("Ending transmission on primary"),this.conn_.send({t:"c",d:{t:"n",d:{}}}),this.tx_=this.secondaryConn_,this.tryCleanupConnection()},e.prototype.onPrimaryMessageReceived_=function(e){var t=k("t",e),n=k("d",e);"c"===t?this.onControl_(n):"d"===t&&this.onDataMessage_(n)},e.prototype.onDataMessage_=function(e){this.onPrimaryResponse_(),this.onMessage_(e)},e.prototype.onPrimaryResponse_=function(){this.isHealthy_||(this.primaryResponsesRequired_--,this.primaryResponsesRequired_<=0&&(this.log_("Primary connection is healthy."),this.isHealthy_=!0,this.conn_.markConnectionHealthy()))},e.prototype.onControl_=function(e){var t=k("t",e);if("d"in e){var n=e.d;if("h"===t)this.onHandshake_(n);else if("n"===t){this.log_("recvd end transmission on primary"),this.rx_=this.secondaryConn_;for(var r=0;r<this.pendingDataMessages.length;++r)this.onDataMessage_(this.pendingDataMessages[r]);this.pendingDataMessages=[],this.tryCleanupConnection()}else"s"===t?this.onConnectionShutdown_(n):"r"===t?this.onReset_(n):"e"===t?T("Server Error: "+n):"o"===t?(this.log_("got pong on primary."),this.onPrimaryResponse_(),this.sendPingOnPrimaryIfNecessary_()):T("Unknown control packet command: "+t)}},e.prototype.onHandshake_=function(e){var t=e.ts,n=e.v,r=e.h;this.sessionId=e.s,this.repoInfo_.updateHost(r),0===this.state_&&(this.conn_.start(),this.onConnectionEstablished_(this.conn_,t),"5"!==n&&I("Protocol version mismatch detected"),this.tryStartUpgrade_())},e.prototype.tryStartUpgrade_=function(){var e=this.transportManager_.upgradeTransport();e&&this.startUpgrade_(e)},e.prototype.startUpgrade_=function(e){var t=this;this.secondaryConn_=new e(this.nextTransportId_(),this.repoInfo_,this.applicationId_,this.sessionId),this.secondaryResponsesRequired_=e.responsesRequiredToBeHealthy||0;var n=this.connReceiver_(this.secondaryConn_),r=this.disconnReceiver_(this.secondaryConn_);this.secondaryConn_.open(n,r),X((function(){t.secondaryConn_&&(t.log_("Timed out trying to upgrade."),t.secondaryConn_.close())}),Math.floor(6e4))},e.prototype.onReset_=function(e){this.log_("Reset packet received.  New host: "+e),this.repoInfo_.updateHost(e),1===this.state_?this.close():(this.closeConnections_(),this.start_())},e.prototype.onConnectionEstablished_=function(e,t){var n=this;this.log_("Realtime connection established."),this.conn_=e,this.state_=1,this.onReady_&&(this.onReady_(t,this.sessionId),this.onReady_=null),0===this.primaryResponsesRequired_?(this.log_("Primary connection is healthy."),this.isHealthy_=!0):X((function(){n.sendPingOnPrimaryIfNecessary_()}),Math.floor(5e3))},e.prototype.sendPingOnPrimaryIfNecessary_=function(){this.isHealthy_||1!==this.state_||(this.log_("sending ping on primary."),this.sendData_({t:"c",d:{t:"p",d:{}}}))},e.prototype.onSecondaryConnectionLost_=function(){var e=this.secondaryConn_;this.secondaryConn_=null,this.tx_!==e&&this.rx_!==e||this.close()},e.prototype.onConnectionLost_=function(e){this.conn_=null,e||0!==this.state_?1===this.state_&&this.log_("Realtime connection lost."):(this.log_("Realtime connection failed."),this.repoInfo_.isCacheableHost()&&(d.remove("host:"+this.repoInfo_.host),this.repoInfo_.internalHost=this.repoInfo_.host)),this.close()},e.prototype.onConnectionShutdown_=function(e){this.log_("Connection shutdown command received. Shutting down..."),this.onKill_&&(this.onKill_(e),this.onKill_=null),this.onDisconnect_=null,this.close()},e.prototype.sendData_=function(e){if(1!==this.state_)throw"Connection is not connected";this.tx_.send(e)},e.prototype.close=function(){2!==this.state_&&(this.log_("Closing realtime connection."),this.state_=2,this.closeConnections_(),this.onDisconnect_&&(this.onDisconnect_(),this.onDisconnect_=null))},e.prototype.closeConnections_=function(){this.log_("Shutting down all connections"),this.conn_&&(this.conn_.close(),this.conn_=null),this.secondaryConn_&&(this.secondaryConn_.close(),this.secondaryConn_=null),this.healthyTimeout_&&(clearTimeout(this.healthyTimeout_),this.healthyTimeout_=null)},e}(),$t=function(){function e(){}return e.prototype.put=function(e,t,n,r){},e.prototype.merge=function(e,t,n,r){},e.prototype.refreshAuthToken=function(e){},e.prototype.onDisconnectPut=function(e,t,n){},e.prototype.onDisconnectMerge=function(e,t,n){},e.prototype.onDisconnectCancel=function(e,t){},e.prototype.reportStats=function(e){},e}(),Jt=function(e){function t(n,r,i,o,s,l,u){var h=e.call(this)||this;if(h.repoInfo_=n,h.applicationId_=r,h.onDataUpdate_=i,h.onConnectStatus_=o,h.onServerInfoUpdate_=s,h.authTokenProvider_=l,h.authOverride_=u,h.id=t.nextPersistentConnectionId_++,h.log_=b("p:"+h.id+":"),h.interruptReasons_={},h.listens=new Map,h.outstandingPuts_=[],h.outstandingPutCount_=0,h.onDisconnectRequestQueue_=[],h.connected_=!1,h.reconnectDelay_=1e3,h.maxReconnectDelay_=3e5,h.securityDebugCallback_=null,h.lastSessionId=null,h.establishConnectionTimer_=null,h.visible_=!1,h.requestCBHash_={},h.requestNumber_=0,h.realtime_=null,h.authToken_=null,h.forceTokenRefresh_=!1,h.invalidAuthTokenCount_=0,h.firstConnection_=!0,h.lastConnectionAttemptTime_=null,h.lastConnectionEstablishedTime_=null,u&&!a.isNodeSdk())throw new Error("Auth override specified in options, but not supported on non Node.js platforms");return h.scheduleConnect_(0),Ut.getInstance().on("visible",h.onVisible_,h),-1===n.host.indexOf("fblocal")&&Vt.getInstance().on("online",h.onOnline_,h),h}return s.__extends(t,e),t.prototype.sendRequest=function(e,t,n){var r=++this.requestNumber_,i={r,a:e,b:t};this.log_(a.stringify(i)),a.assert(this.connected_,"sendRequest call when we're not connected not allowed."),this.realtime_.sendRequest(i),n&&(this.requestCBHash_[r]=n)},t.prototype.listen=function(e,t,n,r){var i=e.queryIdentifier(),o=e.path.toString();this.log_("Listen called for "+o+" "+i),this.listens.has(o)||this.listens.set(o,new Map),a.assert(e.getQueryParams().isDefault()||!e.getQueryParams().loadsAllData(),"listen() called for non-default but complete query"),a.assert(!this.listens.get(o).has(i),"listen() called twice for same path/queryId.");var s={onComplete:r,hashFn:t,query:e,tag:n};this.listens.get(o).set(i,s),this.connected_&&this.sendListen_(s)},t.prototype.sendListen_=function(e){var n=this,r=e.query,i=r.path.toString(),o=r.queryIdentifier();this.log_("Listen on "+i+" for "+o);var s={p:i};e.tag&&(s.q=r.queryObject(),s.t=e.tag),s.h=e.hashFn(),this.sendRequest("q",s,(function(s){var a=s.d,l=s.s;t.warnOnListenWarnings_(a,r),(n.listens.get(i)&&n.listens.get(i).get(o))===e&&(n.log_("listen response",s),"ok"!==l&&n.removeListen_(i,o),e.onComplete&&e.onComplete(l,a))}))},t.warnOnListenWarnings_=function(e,t){if(e&&"object"==typeof e&&a.contains(e,"w")){var n=a.safeGet(e,"w");if(Array.isArray(n)&&~n.indexOf("no_index")){var r='".indexOn": "'+t.getQueryParams().getIndex().toString()+'"',i=t.path.toString();I("Using an unspecified index. Your data will be downloaded and filtered on the client. Consider adding "+r+" at "+i+" to your security rules for better performance.")}}},t.prototype.refreshAuthToken=function(e){this.authToken_=e,this.log_("Auth token refreshed"),this.authToken_?this.tryAuth():this.connected_&&this.sendRequest("unauth",{},(function(){})),this.reduceReconnectDelayIfAdminCredential_(e)},t.prototype.reduceReconnectDelayIfAdminCredential_=function(e){(e&&40===e.length||a.isAdmin(e))&&(this.log_("Admin auth credential detected.  Reducing max reconnect time."),this.maxReconnectDelay_=3e4)},t.prototype.tryAuth=function(){var e=this;if(this.connected_&&this.authToken_){var t=this.authToken_,n=a.isValidFormat(t)?"auth":"gauth",r={cred:t};null===this.authOverride_?r.noauth=!0:"object"==typeof this.authOverride_&&(r.authvar=this.authOverride_),this.sendRequest(n,r,(function(n){var r=n.s,i=n.d||"error";e.authToken_===t&&("ok"===r?e.invalidAuthTokenCount_=0:e.onAuthRevoked_(r,i))}))}},t.prototype.unlisten=function(e,t){var n=e.path.toString(),r=e.queryIdentifier();this.log_("Unlisten called for "+n+" "+r),a.assert(e.getQueryParams().isDefault()||!e.getQueryParams().loadsAllData(),"unlisten() called for non-default but complete query"),this.removeListen_(n,r)&&this.connected_&&this.sendUnlisten_(n,r,e.queryObject(),t)},t.prototype.sendUnlisten_=function(e,t,n,r){this.log_("Unlisten on "+e+" for "+t);var i={p:e};r&&(i.q=n,i.t=r),this.sendRequest("n",i)},t.prototype.onDisconnectPut=function(e,t,n){this.connected_?this.sendOnDisconnect_("o",e,t,n):this.onDisconnectRequestQueue_.push({pathString:e,action:"o",data:t,onComplete:n})},t.prototype.onDisconnectMerge=function(e,t,n){this.connected_?this.sendOnDisconnect_("om",e,t,n):this.onDisconnectRequestQueue_.push({pathString:e,action:"om",data:t,onComplete:n})},t.prototype.onDisconnectCancel=function(e,t){this.connected_?this.sendOnDisconnect_("oc",e,null,t):this.onDisconnectRequestQueue_.push({pathString:e,action:"oc",data:null,onComplete:t})},t.prototype.sendOnDisconnect_=function(e,t,n,r){var i={p:t,d:n};this.log_("onDisconnect "+e,i),this.sendRequest(e,i,(function(e){r&&setTimeout((function(){r(e.s,e.d)}),Math.floor(0))}))},t.prototype.put=function(e,t,n,r){this.putInternal("p",e,t,n,r)},t.prototype.merge=function(e,t,n,r){this.putInternal("m",e,t,n,r)},t.prototype.putInternal=function(e,t,n,r,i){var o={p:t,d:n};void 0!==i&&(o.h=i),this.outstandingPuts_.push({action:e,request:o,onComplete:r}),this.outstandingPutCount_++,this.connected_?this.sendPut_(this.outstandingPuts_.length-1):this.log_("Buffering put: "+t)},t.prototype.sendPut_=function(e){var t=this,n=this.outstandingPuts_[e].action,r=this.outstandingPuts_[e].request,i=this.outstandingPuts_[e].onComplete;this.outstandingPuts_[e].queued=this.connected_,this.sendRequest(n,r,(function(r){t.log_(n+" response",r),delete t.outstandingPuts_[e],t.outstandingPutCount_--,0===t.outstandingPutCount_&&(t.outstandingPuts_=[]),i&&i(r.s,r.d)}))},t.prototype.reportStats=function(e){var t=this;if(this.connected_){var n={c:e};this.log_("reportStats",n),this.sendRequest("s",n,(function(e){"ok"!==e.s&&t.log_("reportStats","Error sending stats: "+e.d)}))}},t.prototype.onDataMessage_=function(e){if("r"in e){this.log_("from server: "+a.stringify(e));var t=e.r,n=this.requestCBHash_[t];n&&(delete this.requestCBHash_[t],n(e.b))}else{if("error"in e)throw"A server-side error has occurred: "+e.error;"a"in e&&this.onDataPush_(e.a,e.b)}},t.prototype.onDataPush_=function(e,t){this.log_("handleServerMessage",e,t),"d"===e?this.onDataUpdate_(t.p,t.d,!1,t.t):"m"===e?this.onDataUpdate_(t.p,t.d,!0,t.t):"c"===e?this.onListenRevoked_(t.p,t.q):"ac"===e?this.onAuthRevoked_(t.s,t.d):"sd"===e?this.onSecurityDebugPacket_(t):T("Unrecognized action received from server: "+a.stringify(e)+"\nAre you using the latest client?")},t.prototype.onReady_=function(e,t){this.log_("connection ready"),this.connected_=!0,this.lastConnectionEstablishedTime_=(new Date).getTime(),this.handleTimestamp_(e),this.lastSessionId=t,this.firstConnection_&&this.sendConnectStats_(),this.restoreState_(),this.firstConnection_=!1,this.onConnectStatus_(!0)},t.prototype.scheduleConnect_=function(e){var t=this;a.assert(!this.realtime_,"Scheduling a connect when we're already connected/ing?"),this.establishConnectionTimer_&&clearTimeout(this.establishConnectionTimer_),this.establishConnectionTimer_=setTimeout((function(){t.establishConnectionTimer_=null,t.establishConnection_()}),Math.floor(e))},t.prototype.onVisible_=function(e){e&&!this.visible_&&this.reconnectDelay_===this.maxReconnectDelay_&&(this.log_("Window became visible.  Reducing delay."),this.reconnectDelay_=1e3,this.realtime_||this.scheduleConnect_(0)),this.visible_=e},t.prototype.onOnline_=function(e){e?(this.log_("Browser went online."),this.reconnectDelay_=1e3,this.realtime_||this.scheduleConnect_(0)):(this.log_("Browser went offline.  Killing connection."),this.realtime_&&this.realtime_.close())},t.prototype.onRealtimeDisconnect_=function(){if(this.log_("data client disconnected"),this.connected_=!1,this.realtime_=null,this.cancelSentTransactions_(),this.requestCBHash_={},this.shouldReconnect_()){this.visible_?this.lastConnectionEstablishedTime_&&((new Date).getTime()-this.lastConnectionEstablishedTime_>3e4&&(this.reconnectDelay_=1e3),this.lastConnectionEstablishedTime_=null):(this.log_("Window isn't visible.  Delaying reconnect."),this.reconnectDelay_=this.maxReconnectDelay_,this.lastConnectionAttemptTime_=(new Date).getTime());var e=(new Date).getTime()-this.lastConnectionAttemptTime_,t=Math.max(0,this.reconnectDelay_-e);t=Math.random()*t,this.log_("Trying to reconnect in "+t+"ms"),this.scheduleConnect_(t),this.reconnectDelay_=Math.min(this.maxReconnectDelay_,1.3*this.reconnectDelay_)}this.onConnectStatus_(!1)},t.prototype.establishConnection_=function(){if(this.shouldReconnect_()){this.log_("Making a connection attempt"),this.lastConnectionAttemptTime_=(new Date).getTime(),this.lastConnectionEstablishedTime_=null;var e=this.onDataMessage_.bind(this),n=this.onReady_.bind(this),r=this.onRealtimeDisconnect_.bind(this),i=this.id+":"+t.nextConnectionId_++,o=this,s=this.lastSessionId,l=!1,u=null,h=function(){u?u.close():(l=!0,r())};this.realtime_={close:h,sendRequest:function(e){a.assert(u,"sendRequest call when we're not connected not allowed."),u.sendRequest(e)}};var c=this.forceTokenRefresh_;this.forceTokenRefresh_=!1,this.authTokenProvider_.getToken(c).then((function(t){l?w("getToken() completed but was canceled"):(w("getToken() completed. Creating connection."),o.authToken_=t&&t.accessToken,u=new Xt(i,o.repoInfo_,o.applicationId_,e,n,r,(function(e){I(e+" ("+o.repoInfo_.toString()+")"),o.interrupt("server_kill")}),s))})).then(null,(function(e){o.log_("Failed to get token: "+e),l||(a.CONSTANTS.NODE_ADMIN&&I(e),h())}))}},t.prototype.interrupt=function(e){w("Interrupting connection for reason: "+e),this.interruptReasons_[e]=!0,this.realtime_?this.realtime_.close():(this.establishConnectionTimer_&&(clearTimeout(this.establishConnectionTimer_),this.establishConnectionTimer_=null),this.connected_&&this.onRealtimeDisconnect_())},t.prototype.resume=function(e){w("Resuming connection for reason: "+e),delete this.interruptReasons_[e],a.isEmpty(this.interruptReasons_)&&(this.reconnectDelay_=1e3,this.realtime_||this.scheduleConnect_(0))},t.prototype.handleTimestamp_=function(e){var t=e-(new Date).getTime();this.onServerInfoUpdate_({serverTimeOffset:t})},t.prototype.cancelSentTransactions_=function(){for(var e=0;e<this.outstandingPuts_.length;e++){var t=this.outstandingPuts_[e];t&&"h"in t.request&&t.queued&&(t.onComplete&&t.onComplete("disconnect"),delete this.outstandingPuts_[e],this.outstandingPutCount_--)}0===this.outstandingPutCount_&&(this.outstandingPuts_=[])},t.prototype.onListenRevoked_=function(e,t){var n;n=t?t.map((function(e){return O(e)})).join("$"):"default";var r=this.removeListen_(e,n);r&&r.onComplete&&r.onComplete("permission_denied")},t.prototype.removeListen_=function(e,t){var n,r=new $(e).toString();if(this.listens.has(r)){var i=this.listens.get(r);n=i.get(t),i.delete(t),0===i.size&&this.listens.delete(r)}else n=void 0;return n},t.prototype.onAuthRevoked_=function(e,t){w("Auth token revoked: "+e+"/"+t),this.authToken_=null,this.forceTokenRefresh_=!0,this.realtime_.close(),"invalid_token"!==e&&"permission_denied"!==e||(this.invalidAuthTokenCount_++,this.invalidAuthTokenCount_>=3&&(this.reconnectDelay_=3e4,this.authTokenProvider_.notifyForInvalidToken()))},t.prototype.onSecurityDebugPacket_=function(e){this.securityDebugCallback_?this.securityDebugCallback_(e):"msg"in e&&console.log("FIREBASE: "+e.msg.replace("\n","\nFIREBASE: "))},t.prototype.restoreState_=function(){var e,t,n,r;this.tryAuth();try{for(var i=s.__values(this.listens.values()),o=i.next();!o.done;o=i.next()){var a=o.value;try{for(var l=(n=void 0,s.__values(a.values())),u=l.next();!u.done;u=l.next())this.sendListen_(u.value)}catch(p){n={error:p}}finally{try{u&&!u.done&&(r=l.return)&&r.call(l)}finally{if(n)throw n.error}}}}catch(d){e={error:d}}finally{try{o&&!o.done&&(t=i.return)&&t.call(i)}finally{if(e)throw e.error}}for(var h=0;h<this.outstandingPuts_.length;h++)this.outstandingPuts_[h]&&this.sendPut_(h);for(;this.onDisconnectRequestQueue_.length;){var c=this.onDisconnectRequestQueue_.shift();this.sendOnDisconnect_(c.action,c.pathString,c.data,c.onComplete)}},t.prototype.sendConnectStats_=function(){var e={},t="js";a.CONSTANTS.NODE_ADMIN?t="admin_node":a.CONSTANTS.NODE_CLIENT&&(t="node"),e["sdk."+t+"."+Kt.replace(/\./g,"-")]=1,a.isMobileCordova()?e["framework.cordova"]=1:a.isReactNative()&&(e["framework.reactnative"]=1),this.reportStats(e)},t.prototype.shouldReconnect_=function(){var e=Vt.getInstance().currentlyOnline();return a.isEmpty(this.interruptReasons_)&&e},t.nextPersistentConnectionId_=0,t.nextConnectionId_=0,t}($t),Zt=function(e){function t(t,n,r){var i=e.call(this)||this;return i.repoInfo_=t,i.onDataUpdate_=n,i.authTokenProvider_=r,i.log_=b("p:rest:"),i.listens_={},i}return s.__extends(t,e),t.prototype.reportStats=function(e){throw new Error("Method not implemented.")},t.getListenId_=function(e,t){return void 0!==t?"tag$"+t:(a.assert(e.getQueryParams().isDefault(),"should have a tag if it's not a default query."),e.path.toString())},t.prototype.listen=function(e,n,r,i){var o=this,s=e.path.toString();this.log_("Listen called for "+s+" "+e.queryIdentifier());var l=t.getListenId_(e,r),u={};this.listens_[l]=u;var h=e.getQueryParams().toRestQueryStringParameters();this.restRequest_(s+".json",h,(function(e,t){var n=t;404===e&&(n=null,e=null),null===e&&o.onDataUpdate_(s,n,!1,r),a.safeGet(o.listens_,l)===u&&i(e?401===e?"permission_denied":"rest_error:"+e:"ok",null)}))},t.prototype.unlisten=function(e,n){var r=t.getListenId_(e,n);delete this.listens_[r]},t.prototype.refreshAuthToken=function(e){},t.prototype.restRequest_=function(e,t,n){var r=this;void 0===t&&(t={}),t.format="export",this.authTokenProvider_.getToken(!1).then((function(i){var o=i&&i.accessToken;o&&(t.auth=o);var s=(r.repoInfo_.secure?"https://":"http://")+r.repoInfo_.host+e+"?ns="+r.repoInfo_.namespace+a.querystring(t);r.log_("Sending REST request for "+s);var l=new XMLHttpRequest;l.onreadystatechange=function(){if(n&&4===l.readyState){r.log_("REST Response for "+s+" received. status:",l.status,"response:",l.responseText);var e=null;if(l.status>=200&&l.status<300){try{e=a.jsonEval(l.responseText)}catch(t){I("Failed to parse JSON response for "+s+": "+l.responseText)}n(null,e)}else 401!==l.status&&404!==l.status&&I("Got unsuccessful REST response for "+s+" Status: "+l.status),n(l.status);n=null}},l.open("GET",s,!0),l.send()}))},t}($t),en=function(){function e(e,t,n,r){var i=this;this.repoInfo_=e,this.app=n,this.dataUpdateCount=0,this.statsListener_=null,this.eventQueue_=new Wt,this.nextWriteId_=1,this.interceptServerDataCallback_=null,this.onDisconnect_=new lt,this.persistentConnection_=null;var o=new Ot(n,r);if(this.stats_=At.getCollection(e),t||("object"==typeof window&&window.navigator&&window.navigator.userAgent||"").search(/googlebot|google webmaster tools|bingbot|yahoo! slurp|baiduspider|yandexbot|duckduckbot/i)>=0)this.server_=new Zt(this.repoInfo_,this.onDataUpdate_.bind(this),o),setTimeout(this.onConnectStatus_.bind(this,!0),0);else{var s=n.options.databaseAuthVariableOverride;if(null!=s){if("object"!=typeof s)throw new Error("Only objects are supported for option databaseAuthVariableOverride");try{a.stringify(s)}catch(l){throw new Error("Invalid authOverride provided: "+l)}}this.persistentConnection_=new Jt(this.repoInfo_,n.options.appId,this.onDataUpdate_.bind(this),this.onConnectStatus_.bind(this),this.onServerInfoUpdate_.bind(this),o,s),this.server_=this.persistentConnection_}o.addTokenChangeListener((function(e){i.server_.refreshAuthToken(e)})),this.statsReporter_=At.getOrCreateReporter(e,(function(){return new Mt(i.stats_,i.server_)})),this.transactionsInit_(),this.infoData_=new kt,this.infoSyncTree_=new Dt({startListening:function(e,t,n,r){var o=[],s=i.infoData_.getNode(e.path);return s.isEmpty()||(o=i.infoSyncTree_.applyServerOverwrite(e.path,s),setTimeout((function(){r("ok")}),0)),o},stopListening:function(){}}),this.updateInfo_("connected",!1),this.serverSyncTree_=new Dt({startListening:function(e,t,n,r){return i.server_.listen(e,n,t,(function(t,n){var o=r(t,n);i.eventQueue_.raiseEventsForChangedPath(e.path,o)})),[]},stopListening:function(e,t){i.server_.unlisten(e,t)}})}return e.prototype.toString=function(){return(this.repoInfo_.secure?"https://":"http://")+this.repoInfo_.host},e.prototype.name=function(){return this.repoInfo_.namespace},e.prototype.serverTime=function(){var e=this.infoData_.getNode(new $(".info/serverTimeOffset")).val()||0;return(new Date).getTime()+e},e.prototype.generateServerValues=function(){return(e=(e={timestamp:this.serverTime()})||{}).timestamp=e.timestamp||(new Date).getTime(),e;var e},e.prototype.onDataUpdate_=function(e,t,n,r){this.dataUpdateCount++;var i=new $(e);t=this.interceptServerDataCallback_?this.interceptServerDataCallback_(e,t):t;var o=[];if(r)if(n){var s=a.map(t,(function(e){return Ve(e)}));o=this.serverSyncTree_.applyTaggedQueryMerge(i,s,r)}else{var l=Ve(t);o=this.serverSyncTree_.applyTaggedQueryOverwrite(i,l,r)}else if(n){var u=a.map(t,(function(e){return Ve(e)}));o=this.serverSyncTree_.applyServerMerge(i,u)}else{var h=Ve(t);o=this.serverSyncTree_.applyServerOverwrite(i,h)}var c=i;o.length>0&&(c=this.rerunTransactions_(i)),this.eventQueue_.raiseEventsForChangedPath(c,o)},e.prototype.interceptServerData_=function(e){this.interceptServerDataCallback_=e},e.prototype.onConnectStatus_=function(e){this.updateInfo_("connected",e),!1===e&&this.runOnDisconnectEvents_()},e.prototype.onServerInfoUpdate_=function(e){var t=this;A(e,(function(e,n){t.updateInfo_(e,n)}))},e.prototype.updateInfo_=function(e,t){var n=new $("/.info/"+e),r=Ve(t);this.infoData_.updateSnapshot(n,r);var i=this.infoSyncTree_.applyServerOverwrite(n,r);this.eventQueue_.raiseEventsForChangedPath(n,i)},e.prototype.getNextWriteId_=function(){return this.nextWriteId_++},e.prototype.setWithPriority=function(e,t,n,r){var i=this;this.log_("set",{path:e.toString(),value:t,priority:n});var o=this.generateServerValues(),s=Ve(t,n),a=this.serverSyncTree_.calcCompleteEventCache(e),l=it(s,a,o),u=this.getNextWriteId_(),h=this.serverSyncTree_.applyUserOverwrite(e,l,u,!0);this.eventQueue_.queueEvents(h),this.server_.put(e.toString(),s.val(!0),(function(t,n){var o="ok"===t;o||I("set at "+e+" failed: "+t);var s=i.serverSyncTree_.ackUserWrite(u,!o);i.eventQueue_.raiseEventsForChangedPath(e,s),i.callOnCompleteCallback(r,t,n)}));var c=this.abortTransactions_(e);this.rerunTransactions_(c),this.eventQueue_.raiseEventsForChangedPath(c,[])},e.prototype.update=function(e,t,n){var r=this;this.log_("update",{path:e.toString(),value:t});var i=!0,o=this.generateServerValues(),s={};if(A(t,(function(t,n){i=!1,s[t]=rt(e.child(t),Ve(n),r.serverSyncTree_,o)})),i)w("update() called with empty data.  Don't do anything."),this.callOnCompleteCallback(n,"ok");else{var a=this.getNextWriteId_(),l=this.serverSyncTree_.applyUserMerge(e,s,a);this.eventQueue_.queueEvents(l),this.server_.merge(e.toString(),t,(function(t,i){var o="ok"===t;o||I("update at "+e+" failed: "+t);var s=r.serverSyncTree_.ackUserWrite(a,!o),l=s.length>0?r.rerunTransactions_(e):e;r.eventQueue_.raiseEventsForChangedPath(l,s),r.callOnCompleteCallback(n,t,i)})),A(t,(function(t){var n=r.abortTransactions_(e.child(t));r.rerunTransactions_(n)})),this.eventQueue_.raiseEventsForChangedPath(e,[])}},e.prototype.runOnDisconnectEvents_=function(){var e=this;this.log_("onDisconnectEvents");var t=this.generateServerValues(),n=new lt;this.onDisconnect_.forEachTree($.Empty,(function(r,i){var o=rt(r,i,e.serverSyncTree_,t);n.remember(r,o)}));var r=[];n.forEachTree($.Empty,(function(t,n){r=r.concat(e.serverSyncTree_.applyServerOverwrite(t,n));var i=e.abortTransactions_(t);e.rerunTransactions_(i)})),this.onDisconnect_=new lt,this.eventQueue_.raiseEventsForChangedPath($.Empty,r)},e.prototype.onDisconnectCancel=function(e,t){var n=this;this.server_.onDisconnectCancel(e.toString(),(function(r,i){"ok"===r&&n.onDisconnect_.forget(e),n.callOnCompleteCallback(t,r,i)}))},e.prototype.onDisconnectSet=function(e,t,n){var r=this,i=Ve(t);this.server_.onDisconnectPut(e.toString(),i.val(!0),(function(t,o){"ok"===t&&r.onDisconnect_.remember(e,i),r.callOnCompleteCallback(n,t,o)}))},e.prototype.onDisconnectSetWithPriority=function(e,t,n,r){var i=this,o=Ve(t,n);this.server_.onDisconnectPut(e.toString(),o.val(!0),(function(t,n){"ok"===t&&i.onDisconnect_.remember(e,o),i.callOnCompleteCallback(r,t,n)}))},e.prototype.onDisconnectUpdate=function(e,t,n){var r=this;if(a.isEmpty(t))return w("onDisconnect().update() called with empty data.  Don't do anything."),void this.callOnCompleteCallback(n,"ok");this.server_.onDisconnectMerge(e.toString(),t,(function(i,o){"ok"===i&&A(t,(function(t,n){var i=Ve(n);r.onDisconnect_.remember(e.child(t),i)})),r.callOnCompleteCallback(n,i,o)}))},e.prototype.addEventCallbackForQuery=function(e,t){var n;n=".info"===e.path.getFront()?this.infoSyncTree_.addEventRegistration(e,t):this.serverSyncTree_.addEventRegistration(e,t),this.eventQueue_.raiseEventsAtPath(e.path,n)},e.prototype.removeEventCallbackForQuery=function(e,t){var n;n=".info"===e.path.getFront()?this.infoSyncTree_.removeEventRegistration(e,t):this.serverSyncTree_.removeEventRegistration(e,t),this.eventQueue_.raiseEventsAtPath(e.path,n)},e.prototype.interrupt=function(){this.persistentConnection_&&this.persistentConnection_.interrupt("repo_interrupt")},e.prototype.resume=function(){this.persistentConnection_&&this.persistentConnection_.resume("repo_interrupt")},e.prototype.stats=function(e){if(void 0===e&&(e=!1),"undefined"!=typeof console){var t;e?(this.statsListener_||(this.statsListener_=new Lt(this.stats_)),t=this.statsListener_.get()):t=this.stats_.get();var n=Object.keys(t).reduce((function(e,t){return Math.max(t.length,e)}),0);A(t,(function(e,t){for(var r=e,i=e.length;i<n+2;i++)r+=" ";console.log(r+t)}))}},e.prototype.statsIncrementCounter=function(e){this.stats_.incrementCounter(e),this.statsReporter_.includeStat(e)},e.prototype.log_=function(){for(var e=[],t=0;t<arguments.length;t++)e[t]=arguments[t];var n="";this.persistentConnection_&&(n=this.persistentConnection_.id+":"),w.apply(void 0,s.__spread([n],e))},e.prototype.callOnCompleteCallback=function(e,t,n){e&&G((function(){if("ok"===t)e(null);else{var r=(t||"error").toUpperCase(),i=r;n&&(i+=": "+n);var o=new Error(i);o.code=r,e(o)}}))},Object.defineProperty(e.prototype,"database",{get:function(){return this.__database||(this.__database=new cn(this))},enumerable:!1,configurable:!0}),e}(),tn=function(){function e(t){this.indexedFilter_=new mt(t.getIndex()),this.index_=t.getIndex(),this.startPost_=e.getStartPost_(t),this.endPost_=e.getEndPost_(t)}return e.prototype.getStartPost=function(){return this.startPost_},e.prototype.getEndPost=function(){return this.endPost_},e.prototype.matches=function(e){return this.index_.compare(this.getStartPost(),e)<=0&&this.index_.compare(e,this.getEndPost())<=0},e.prototype.updateChild=function(e,t,n,r,i,o){return this.matches(new Ee(t,n))||(n=Qe.EMPTY_NODE),this.indexedFilter_.updateChild(e,t,n,r,i,o)},e.prototype.updateFullNode=function(e,t,n){t.isLeafNode()&&(t=Qe.EMPTY_NODE);var r=t.withIndex(this.index_);r=r.updatePriority(Qe.EMPTY_NODE);var i=this;return t.forEachChild(Pe,(function(e,t){i.matches(new Ee(e,t))||(r=r.updateImmediateChild(e,Qe.EMPTY_NODE))})),this.indexedFilter_.updateFullNode(e,r,n)},e.prototype.updatePriority=function(e,t){return e},e.prototype.filtersNodes=function(){return!0},e.prototype.getIndexedFilter=function(){return this.indexedFilter_},e.prototype.getIndex=function(){return this.index_},e.getStartPost_=function(e){if(e.hasStart()){var t=e.getIndexStartName();return e.getIndex().makePost(e.getIndexStartValue(),t)}return e.getIndex().minPost()},e.getEndPost_=function(e){if(e.hasEnd()){var t=e.getIndexEndName();return e.getIndex().makePost(e.getIndexEndValue(),t)}return e.getIndex().maxPost()},e}(),nn=function(){function e(e){this.rangedFilter_=new tn(e),this.index_=e.getIndex(),this.limit_=e.getLimit(),this.reverse_=!e.isViewFromLeft()}return e.prototype.updateChild=function(e,t,n,r,i,o){return this.rangedFilter_.matches(new Ee(t,n))||(n=Qe.EMPTY_NODE),e.getImmediateChild(t).equals(n)?e:e.numChildren()<this.limit_?this.rangedFilter_.getIndexedFilter().updateChild(e,t,n,r,i,o):this.fullLimitUpdateChild_(e,t,n,i,o)},e.prototype.updateFullNode=function(e,t,n){var r;if(t.isLeafNode()||t.isEmpty())r=Qe.EMPTY_NODE.withIndex(this.index_);else if(2*this.limit_<t.numChildren()&&t.isIndexed(this.index_)){r=Qe.EMPTY_NODE.withIndex(this.index_);var i=void 0;i=this.reverse_?t.getReverseIteratorFrom(this.rangedFilter_.getEndPost(),this.index_):t.getIteratorFrom(this.rangedFilter_.getStartPost(),this.index_);for(var o=0;i.hasNext()&&o<this.limit_;){var s=i.getNext();if(!(this.reverse_?this.index_.compare(this.rangedFilter_.getStartPost(),s)<=0:this.index_.compare(s,this.rangedFilter_.getEndPost())<=0))break;r=r.updateImmediateChild(s.name,s.node),o++}}else{r=(r=t.withIndex(this.index_)).updatePriority(Qe.EMPTY_NODE);var a=void 0,l=void 0,u=void 0;if(i=void 0,this.reverse_){i=r.getReverseIterator(this.index_),a=this.rangedFilter_.getEndPost(),l=this.rangedFilter_.getStartPost();var h=this.index_.getCompare();u=function(e,t){return h(t,e)}}else i=r.getIterator(this.index_),a=this.rangedFilter_.getStartPost(),l=this.rangedFilter_.getEndPost(),u=this.index_.getCompare();o=0;for(var c=!1;i.hasNext();)s=i.getNext(),!c&&u(a,s)<=0&&(c=!0),c&&o<this.limit_&&u(s,l)<=0?o++:r=r.updateImmediateChild(s.name,Qe.EMPTY_NODE)}return this.rangedFilter_.getIndexedFilter().updateFullNode(e,r,n)},e.prototype.updatePriority=function(e,t){return e},e.prototype.filtersNodes=function(){return!0},e.prototype.getIndexedFilter=function(){return this.rangedFilter_.getIndexedFilter()},e.prototype.getIndex=function(){return this.index_},e.prototype.fullLimitUpdateChild_=function(e,t,n,r,i){var o;if(this.reverse_){var s=this.index_.getCompare();o=function(e,t){return s(t,e)}}else o=this.index_.getCompare();var l=e;a.assert(l.numChildren()===this.limit_,"");var u=new Ee(t,n),h=this.reverse_?l.getFirstChild(this.index_):l.getLastChild(this.index_),c=this.rangedFilter_.matches(u);if(l.hasChild(t)){for(var p=l.getImmediateChild(t),d=r.getChildAfterChild(this.index_,h,this.reverse_);null!=d&&(d.name===t||l.hasChild(d.name));)d=r.getChildAfterChild(this.index_,d,this.reverse_);var f=null==d?1:o(d,u);if(c&&!n.isEmpty()&&f>=0)return null!=i&&i.trackChildChange(gt.childChangedChange(t,n,p)),l.updateImmediateChild(t,n);null!=i&&i.trackChildChange(gt.childRemovedChange(t,p));var _=l.updateImmediateChild(t,Qe.EMPTY_NODE);return null!=d&&this.rangedFilter_.matches(d)?(null!=i&&i.trackChildChange(gt.childAddedChange(d.name,d.node)),_.updateImmediateChild(d.name,d.node)):_}return n.isEmpty()?e:c&&o(h,u)>=0?(null!=i&&(i.trackChildChange(gt.childRemovedChange(h.name,h.node)),i.trackChildChange(gt.childAddedChange(t,n))),l.updateImmediateChild(t,n).updateImmediateChild(h.name,Qe.EMPTY_NODE)):e},e}(),rn=function(){function e(){this.limitSet_=!1,this.startSet_=!1,this.startNameSet_=!1,this.endSet_=!1,this.endNameSet_=!1,this.limit_=0,this.viewFrom_="",this.indexStartValue_=null,this.indexStartName_="",this.indexEndValue_=null,this.indexEndName_="",this.index_=Pe}return e.prototype.hasStart=function(){return this.startSet_},e.prototype.isViewFromLeft=function(){return""===this.viewFrom_?this.startSet_:this.viewFrom_===e.WIRE_PROTOCOL_CONSTANTS_.VIEW_FROM_LEFT},e.prototype.getIndexStartValue=function(){return a.assert(this.startSet_,"Only valid if start has been set"),this.indexStartValue_},e.prototype.getIndexStartName=function(){return a.assert(this.startSet_,"Only valid if start has been set"),this.startNameSet_?this.indexStartName_:P},e.prototype.hasEnd=function(){return this.endSet_},e.prototype.getIndexEndValue=function(){return a.assert(this.endSet_,"Only valid if end has been set"),this.indexEndValue_},e.prototype.getIndexEndName=function(){return a.assert(this.endSet_,"Only valid if end has been set"),this.endNameSet_?this.indexEndName_:R},e.prototype.hasLimit=function(){return this.limitSet_},e.prototype.hasAnchoredLimit=function(){return this.limitSet_&&""!==this.viewFrom_},e.prototype.getLimit=function(){return a.assert(this.limitSet_,"Only valid if limit has been set"),this.limit_},e.prototype.getIndex=function(){return this.index_},e.prototype.copy_=function(){var t=new e;return t.limitSet_=this.limitSet_,t.limit_=this.limit_,t.startSet_=this.startSet_,t.indexStartValue_=this.indexStartValue_,t.startNameSet_=this.startNameSet_,t.indexStartName_=this.indexStartName_,t.endSet_=this.endSet_,t.indexEndValue_=this.indexEndValue_,t.endNameSet_=this.endNameSet_,t.indexEndName_=this.indexEndName_,t.index_=this.index_,t.viewFrom_=this.viewFrom_,t},e.prototype.limit=function(e){var t=this.copy_();return t.limitSet_=!0,t.limit_=e,t.viewFrom_="",t},e.prototype.limitToFirst=function(t){var n=this.copy_();return n.limitSet_=!0,n.limit_=t,n.viewFrom_=e.WIRE_PROTOCOL_CONSTANTS_.VIEW_FROM_LEFT,n},e.prototype.limitToLast=function(t){var n=this.copy_();return n.limitSet_=!0,n.limit_=t,n.viewFrom_=e.WIRE_PROTOCOL_CONSTANTS_.VIEW_FROM_RIGHT,n},e.prototype.startAt=function(e,t){var n=this.copy_();return n.startSet_=!0,void 0===e&&(e=null),n.indexStartValue_=e,null!=t?(n.startNameSet_=!0,n.indexStartName_=t):(n.startNameSet_=!1,n.indexStartName_=""),n},e.prototype.endAt=function(e,t){var n=this.copy_();return n.endSet_=!0,void 0===e&&(e=null),n.indexEndValue_=e,void 0!==t?(n.endNameSet_=!0,n.indexEndName_=t):(n.endNameSet_=!1,n.indexEndName_=""),n},e.prototype.orderBy=function(e){var t=this.copy_();return t.index_=e,t},e.prototype.getQueryObject=function(){var t=e.WIRE_PROTOCOL_CONSTANTS_,n={};if(this.startSet_&&(n[t.INDEX_START_VALUE]=this.indexStartValue_,this.startNameSet_&&(n[t.INDEX_START_NAME]=this.indexStartName_)),this.endSet_&&(n[t.INDEX_END_VALUE]=this.indexEndValue_,this.endNameSet_&&(n[t.INDEX_END_NAME]=this.indexEndName_)),this.limitSet_){n[t.LIMIT]=this.limit_;var r=this.viewFrom_;""===r&&(r=this.isViewFromLeft()?t.VIEW_FROM_LEFT:t.VIEW_FROM_RIGHT),n[t.VIEW_FROM]=r}return this.index_!==Pe&&(n[t.INDEX]=this.index_.toString()),n},e.prototype.loadsAllData=function(){return!(this.startSet_||this.endSet_||this.limitSet_)},e.prototype.isDefault=function(){return this.loadsAllData()&&this.index_===Pe},e.prototype.getNodeFilter=function(){return this.loadsAllData()?new mt(this.getIndex()):this.hasLimit()?new nn(this):new tn(this)},e.prototype.toRestQueryStringParameters=function(){var t,n=e.REST_QUERY_CONSTANTS_,r={};return this.isDefault()||(this.index_===Pe?t=n.PRIORITY_INDEX:this.index_===je?t=n.VALUE_INDEX:this.index_===Te?t=n.KEY_INDEX:(a.assert(this.index_ instanceof Be,"Unrecognized index type!"),t=this.index_.toString()),r[n.ORDER_BY]=a.stringify(t),this.startSet_&&(r[n.START_AT]=a.stringify(this.indexStartValue_),this.startNameSet_&&(r[n.START_AT]+=","+a.stringify(this.indexStartName_))),this.endSet_&&(r[n.END_AT]=a.stringify(this.indexEndValue_),this.endNameSet_&&(r[n.END_AT]+=","+a.stringify(this.indexEndName_))),this.limitSet_&&(this.isViewFromLeft()?r[n.LIMIT_TO_FIRST]=this.limit_:r[n.LIMIT_TO_LAST]=this.limit_)),r},e.WIRE_PROTOCOL_CONSTANTS_={INDEX_START_VALUE:"sp",INDEX_START_NAME:"sn",INDEX_END_VALUE:"ep",INDEX_END_NAME:"en",LIMIT:"l",VIEW_FROM:"vf",VIEW_FROM_LEFT:"l",VIEW_FROM_RIGHT:"r",INDEX:"i"},e.REST_QUERY_CONSTANTS_={ORDER_BY:"orderBy",PRIORITY_INDEX:"$priority",VALUE_INDEX:"$value",KEY_INDEX:"$key",START_AT:"startAt",END_AT:"endAt",LIMIT_TO_FIRST:"limitToFirst",LIMIT_TO_LAST:"limitToLast"},e.DEFAULT=new e,e}(),on=function(e){function t(t,n){if(!(t instanceof en))throw new Error("new Reference() no longer supported - use app.database().");return e.call(this,t,n,rn.DEFAULT,!1)||this}return s.__extends(t,e),t.prototype.getKey=function(){return a.validateArgCount("Reference.key",0,0,arguments.length),this.path.isEmpty()?null:this.path.getBack()},t.prototype.child=function(e){return a.validateArgCount("Reference.child",1,1,arguments.length),"number"==typeof e?e=String(e):e instanceof $||(null===this.path.getFront()?fe("Reference.child",1,e,!1):de("Reference.child",1,e,!1)),new t(this.repo,this.path.child(e))},t.prototype.getParent=function(){a.validateArgCount("Reference.parent",0,0,arguments.length);var e=this.path.parent();return null===e?null:new t(this.repo,e)},t.prototype.getRoot=function(){a.validateArgCount("Reference.root",0,0,arguments.length);for(var e=this;null!==e.getParent();)e=e.getParent();return e},t.prototype.databaseProp=function(){return this.repo.database},t.prototype.set=function(e,t){a.validateArgCount("Reference.set",1,2,arguments.length),_e("Reference.set",this.path),ae("Reference.set",1,e,this.path,!1),a.validateCallback("Reference.set",2,t,!0);var n=new a.Deferred;return this.repo.setWithPriority(this.path,e,null,n.wrapCallback(t)),n.promise},t.prototype.update=function(e,t){if(a.validateArgCount("Reference.update",1,2,arguments.length),_e("Reference.update",this.path),Array.isArray(e)){for(var n={},r=0;r<e.length;++r)n[""+r]=e[r];e=n,I("Passing an Array to Firebase.update() is deprecated. Use set() if you want to overwrite the existing data, or an Object with integer keys if you really do want to only update some of the children.")}ue("Reference.update",1,e,this.path,!1),a.validateCallback("Reference.update",2,t,!0);var i=new a.Deferred;return this.repo.update(this.path,e,i.wrapCallback(t)),i.promise},t.prototype.setWithPriority=function(e,t,n){if(a.validateArgCount("Reference.setWithPriority",2,3,arguments.length),_e("Reference.setWithPriority",this.path),ae("Reference.setWithPriority",1,e,this.path,!1),he("Reference.setWithPriority",2,t,!1),a.validateCallback("Reference.setWithPriority",3,n,!0),".length"===this.getKey()||".keys"===this.getKey())throw"Reference.setWithPriority failed: "+this.getKey()+" is a read-only object.";var r=new a.Deferred;return this.repo.setWithPriority(this.path,e,t,r.wrapCallback(n)),r.promise},t.prototype.remove=function(e){return a.validateArgCount("Reference.remove",0,1,arguments.length),_e("Reference.remove",this.path),a.validateCallback("Reference.remove",1,e,!0),this.set(null,e)},t.prototype.transaction=function(e,t,n){if(a.validateArgCount("Reference.transaction",1,3,arguments.length),_e("Reference.transaction",this.path),a.validateCallback("Reference.transaction",1,e,!1),a.validateCallback("Reference.transaction",2,t,!0),ve("Reference.transaction",3,n,!0),".length"===this.getKey()||".keys"===this.getKey())throw"Reference.transaction failed: "+this.getKey()+" is a read-only object.";void 0===n&&(n=!0);var r=new a.Deferred;"function"==typeof t&&r.promise.catch((function(){}));var i=function(e,n,i){e?r.reject(e):r.resolve(new me(n,i)),"function"==typeof t&&t(e,n,i)};return this.repo.startTransaction(this.path,e,i,n),r.promise},t.prototype.setPriority=function(e,t){a.validateArgCount("Reference.setPriority",1,2,arguments.length),_e("Reference.setPriority",this.path),he("Reference.setPriority",1,e,!1),a.validateCallback("Reference.setPriority",2,t,!0);var n=new a.Deferred;return this.repo.setWithPriority(this.path.child(".priority"),e,null,n.wrapCallback(t)),n.promise},t.prototype.push=function(e,t){a.validateArgCount("Reference.push",0,2,arguments.length),_e("Reference.push",this.path),ae("Reference.push",1,e,this.path,!0),a.validateCallback("Reference.push",2,t,!0);var n,r=this.repo.serverTime(),i=Ce(r),o=this.child(i),s=this.child(i);return n=null!=e?o.set(e,t).then((function(){return s})):Promise.resolve(s),o.then=n.then.bind(n),o.catch=n.then.bind(n,void 0),"function"==typeof t&&n.catch((function(){})),o},t.prototype.onDisconnect=function(){return _e("Reference.onDisconnect",this.path),new ge(this.repo,this.path)},Object.defineProperty(t.prototype,"database",{get:function(){return this.databaseProp()},enumerable:!1,configurable:!0}),Object.defineProperty(t.prototype,"key",{get:function(){return this.getKey()},enumerable:!1,configurable:!0}),Object.defineProperty(t.prototype,"parent",{get:function(){return this.getParent()},enumerable:!1,configurable:!0}),Object.defineProperty(t.prototype,"root",{get:function(){return this.getRoot()},enumerable:!1,configurable:!0}),t}($e);$e.__referenceConstructor=on,Nt.__referenceConstructor=on;var sn=function(){return function(){this.children={},this.childCount=0,this.value=null}}(),an=function(){function e(e,t,n){void 0===e&&(e=""),void 0===t&&(t=null),void 0===n&&(n=new sn),this.name_=e,this.parent_=t,this.node_=n}return e.prototype.subTree=function(t){for(var n=t instanceof $?t:new $(t),r=this,i=n.getFront();null!==i;)r=new e(i,r,a.safeGet(r.node_.children,i)||new sn),i=(n=n.popFront()).getFront();return r},e.prototype.getValue=function(){return this.node_.value},e.prototype.setValue=function(e){a.assert(void 0!==e,"Cannot set value to undefined"),this.node_.value=e,this.updateParents_()},e.prototype.clear=function(){this.node_.value=null,this.node_.children={},this.node_.childCount=0,this.updateParents_()},e.prototype.hasChildren=function(){return this.node_.childCount>0},e.prototype.isEmpty=function(){return null===this.getValue()&&!this.hasChildren()},e.prototype.forEachChild=function(t){var n=this;A(this.node_.children,(function(r,i){t(new e(r,n,i))}))},e.prototype.forEachDescendant=function(e,t,n){t&&!n&&e(this),this.forEachChild((function(t){t.forEachDescendant(e,!0,n)})),t&&n&&e(this)},e.prototype.forEachAncestor=function(e,t){for(var n=t?this:this.parent();null!==n;){if(e(n))return!0;n=n.parent()}return!1},e.prototype.forEachImmediateDescendantWithValue=function(e){this.forEachChild((function(t){null!==t.getValue()?e(t):t.forEachImmediateDescendantWithValue(e)}))},e.prototype.path=function(){return new $(null===this.parent_?this.name_:this.parent_.path()+"/"+this.name_)},e.prototype.name=function(){return this.name_},e.prototype.parent=function(){return this.parent_},e.prototype.updateParents_=function(){null!==this.parent_&&this.parent_.updateChild_(this.name_,this)},e.prototype.updateChild_=function(e,t){var n=t.isEmpty(),r=a.contains(this.node_.children,e);n&&r?(delete this.node_.children[e],this.node_.childCount--,this.updateParents_()):n||r||(this.node_.children[e]=t.node_,this.node_.childCount++,this.updateParents_())},e}(),ln=function(e){return e[e.RUN=0]="RUN",e[e.SENT=1]="SENT",e[e.COMPLETED=2]="COMPLETED",e[e.SENT_NEEDS_ABORT=3]="SENT_NEEDS_ABORT",e[e.NEEDS_ABORT=4]="NEEDS_ABORT",e}({});en.MAX_TRANSACTION_RETRIES_=25,en.prototype.transactionsInit_=function(){this.transactionQueueTree_=new an},en.prototype.startTransaction=function(e,t,n,r){this.log_("transaction on "+e);var i=function(){},o=new on(this,e);o.on("value",i);var s={path:e,update:t,onComplete:n,status:null,order:y(),applyLocally:r,retryCount:0,unwatcher:function(){o.off("value",i)},abortReason:null,currentWriteId:null,currentInputSnapshot:null,currentOutputSnapshotRaw:null,currentOutputSnapshotResolved:null},l=this.getLatestState_(e);s.currentInputSnapshot=l;var u=s.update(l.val());if(void 0===u){if(s.unwatcher(),s.currentOutputSnapshotRaw=null,s.currentOutputSnapshotResolved=null,s.onComplete){var h=new Ke(s.currentInputSnapshot,new on(this,s.path),Pe);s.onComplete(null,!1,h)}}else{le("transaction failed: Data returned ",u,s.path),s.status=ln.RUN;var c=this.transactionQueueTree_.subTree(e),p=c.getValue()||[];p.push(s),c.setValue(p);var d=void 0;"object"==typeof u&&null!==u&&a.contains(u,".priority")?(d=a.safeGet(u,".priority"),a.assert(se(d),"Invalid priority returned by transaction. Priority must be a valid string, finite number, server value, or null.")):d=(this.serverSyncTree_.calcCompleteEventCache(e)||Qe.EMPTY_NODE).getPriority().val(),d=d;var f=this.generateServerValues(),_=Ve(u,d),v=it(_,l,f);s.currentOutputSnapshotRaw=_,s.currentOutputSnapshotResolved=v,s.currentWriteId=this.getNextWriteId_();var g=this.serverSyncTree_.applyUserOverwrite(e,v,s.currentWriteId,s.applyLocally);this.eventQueue_.raiseEventsForChangedPath(e,g),this.sendReadyTransactions_()}},en.prototype.getLatestState_=function(e,t){return this.serverSyncTree_.calcCompleteEventCache(e,t)||Qe.EMPTY_NODE},en.prototype.sendReadyTransactions_=function(e){var t=this;if(void 0===e&&(e=this.transactionQueueTree_),e||this.pruneCompletedTransactionsBelowNode_(e),null!==e.getValue()){var n=this.buildTransactionQueue_(e);a.assert(n.length>0,"Sending zero length transaction queue"),n.every((function(e){return e.status===ln.RUN}))&&this.sendTransactionQueue_(e.path(),n)}else e.hasChildren()&&e.forEachChild((function(e){t.sendReadyTransactions_(e)}))},en.prototype.sendTransactionQueue_=function(e,t){for(var n=this,r=t.map((function(e){return e.currentWriteId})),i=this.getLatestState_(e,r),o=i,s=i.hash(),l=0;l<t.length;l++){var u=t[l];a.assert(u.status===ln.RUN,"tryToSendTransactionQueue_: items in queue should all be run."),u.status=ln.SENT,u.retryCount++;var h=$.relativePath(e,u.path);o=o.updateChild(h,u.currentOutputSnapshotRaw)}var c=o.val(!0),p=e;this.server_.put(p.toString(),c,(function(r){n.log_("transaction put response",{path:p.toString(),status:r});var i=[];if("ok"===r){for(var o=[],s=0;s<t.length;s++){if(t[s].status=ln.COMPLETED,i=i.concat(n.serverSyncTree_.ackUserWrite(t[s].currentWriteId)),t[s].onComplete){var a=t[s].currentOutputSnapshotResolved,l=new on(n,t[s].path),u=new Ke(a,l,Pe);o.push(t[s].onComplete.bind(null,null,!0,u))}t[s].unwatcher()}for(n.pruneCompletedTransactionsBelowNode_(n.transactionQueueTree_.subTree(e)),n.sendReadyTransactions_(),n.eventQueue_.raiseEventsForChangedPath(e,i),s=0;s<o.length;s++)G(o[s])}else{if("datastale"===r)for(s=0;s<t.length;s++)t[s].status=t[s].status===ln.SENT_NEEDS_ABORT?ln.NEEDS_ABORT:ln.RUN;else for(I("transaction at "+p.toString()+" failed: "+r),s=0;s<t.length;s++)t[s].status=ln.NEEDS_ABORT,t[s].abortReason=r;n.rerunTransactions_(e)}}),s)},en.prototype.rerunTransactions_=function(e){var t=this.getAncestorTransactionNode_(e),n=t.path(),r=this.buildTransactionQueue_(t);return this.rerunTransactionQueue_(r,n),n},en.prototype.rerunTransactionQueue_=function(e,t){if(0!==e.length){for(var n=[],r=[],i=e.filter((function(e){return e.status===ln.RUN})).map((function(e){return e.currentWriteId})),o=0;o<e.length;o++){var s=e[o],l=$.relativePath(t,s.path),u=!1,h=void 0;if(a.assert(null!==l,"rerunTransactionsUnderNode_: relativePath should not be null."),s.status===ln.NEEDS_ABORT)u=!0,h=s.abortReason,r=r.concat(this.serverSyncTree_.ackUserWrite(s.currentWriteId,!0));else if(s.status===ln.RUN)if(s.retryCount>=en.MAX_TRANSACTION_RETRIES_)u=!0,h="maxretry",r=r.concat(this.serverSyncTree_.ackUserWrite(s.currentWriteId,!0));else{var c=this.getLatestState_(s.path,i);s.currentInputSnapshot=c;var p=e[o].update(c.val());if(void 0!==p){le("transaction failed: Data returned ",p,s.path);var d=Ve(p);"object"==typeof p&&null!=p&&a.contains(p,".priority")||(d=d.updatePriority(c.getPriority()));var f=s.currentWriteId,_=this.generateServerValues(),y=it(d,c,_);s.currentOutputSnapshotRaw=d,s.currentOutputSnapshotResolved=y,s.currentWriteId=this.getNextWriteId_(),i.splice(i.indexOf(f),1),r=(r=r.concat(this.serverSyncTree_.applyUserOverwrite(s.path,y,s.currentWriteId,s.applyLocally))).concat(this.serverSyncTree_.ackUserWrite(f,!0))}else u=!0,h="nodata",r=r.concat(this.serverSyncTree_.ackUserWrite(s.currentWriteId,!0))}if(this.eventQueue_.raiseEventsForChangedPath(t,r),r=[],u&&(e[o].status=ln.COMPLETED,setTimeout(e[o].unwatcher,Math.floor(0)),e[o].onComplete))if("nodata"===h){var v=new on(this,e[o].path),g=new Ke(e[o].currentInputSnapshot,v,Pe);n.push(e[o].onComplete.bind(null,null,!1,g))}else n.push(e[o].onComplete.bind(null,new Error(h),!1,null))}for(this.pruneCompletedTransactionsBelowNode_(this.transactionQueueTree_),o=0;o<n.length;o++)G(n[o]);this.sendReadyTransactions_()}},en.prototype.getAncestorTransactionNode_=function(e){var t,n=this.transactionQueueTree_;for(t=e.getFront();null!==t&&null===n.getValue();)n=n.subTree(t),t=(e=e.popFront()).getFront();return n},en.prototype.buildTransactionQueue_=function(e){var t=[];return this.aggregateTransactionQueuesForNode_(e,t),t.sort((function(e,t){return e.order-t.order})),t},en.prototype.aggregateTransactionQueuesForNode_=function(e,t){var n=this,r=e.getValue();if(null!==r)for(var i=0;i<r.length;i++)t.push(r[i]);e.forEachChild((function(e){n.aggregateTransactionQueuesForNode_(e,t)}))},en.prototype.pruneCompletedTransactionsBelowNode_=function(e){var t=this,n=e.getValue();if(n){for(var r=0,i=0;i<n.length;i++)n[i].status!==ln.COMPLETED&&(n[r]=n[i],r++);n.length=r,e.setValue(n.length>0?n:null)}e.forEachChild((function(e){t.pruneCompletedTransactionsBelowNode_(e)}))},en.prototype.abortTransactions_=function(e){var t=this,n=this.getAncestorTransactionNode_(e).path(),r=this.transactionQueueTree_.subTree(e);return r.forEachAncestor((function(e){t.abortTransactionsOnNode_(e)})),this.abortTransactionsOnNode_(r),r.forEachDescendant((function(e){t.abortTransactionsOnNode_(e)})),n},en.prototype.abortTransactionsOnNode_=function(e){var t=e.getValue();if(null!==t){for(var n=[],r=[],i=-1,o=0;o<t.length;o++)t[o].status===ln.SENT_NEEDS_ABORT||(t[o].status===ln.SENT?(a.assert(i===o-1,"All SENT items should be at beginning of queue."),i=o,t[o].status=ln.SENT_NEEDS_ABORT,t[o].abortReason="set"):(a.assert(t[o].status===ln.RUN,"Unexpected transaction status in abort"),t[o].unwatcher(),r=r.concat(this.serverSyncTree_.ackUserWrite(t[o].currentWriteId,!0)),t[o].onComplete&&n.push(t[o].onComplete.bind(null,new Error("set"),!1,null))));for(-1===i?e.setValue(null):t.length=i+1,this.eventQueue_.raiseEventsForChangedPath(e.path(),r),o=0;o<n.length;o++)G(n[o])}};var un,hn=function(){function e(){this.repos_={},this.useRestClient_=!1}return e.getInstance=function(){return un||(un=new e),un},e.prototype.interrupt=function(){var e,t,n,r;try{for(var i=s.__values(Object.keys(this.repos_)),o=i.next();!o.done;o=i.next()){var a=o.value;try{for(var l=(n=void 0,s.__values(Object.keys(this.repos_[a]))),u=l.next();!u.done;u=l.next())this.repos_[a][u.value].interrupt()}catch(h){n={error:h}}finally{try{u&&!u.done&&(r=l.return)&&r.call(l)}finally{if(n)throw n.error}}}}catch(c){e={error:c}}finally{try{o&&!o.done&&(t=i.return)&&t.call(i)}finally{if(e)throw e.error}}},e.prototype.resume=function(){var e,t,n,r;try{for(var i=s.__values(Object.keys(this.repos_)),o=i.next();!o.done;o=i.next()){var a=o.value;try{for(var l=(n=void 0,s.__values(Object.keys(this.repos_[a]))),u=l.next();!u.done;u=l.next())this.repos_[a][u.value].resume()}catch(h){n={error:h}}finally{try{u&&!u.done&&(r=l.return)&&r.call(l)}finally{if(n)throw n.error}}}}catch(c){e={error:c}}finally{try{o&&!o.done&&(t=i.return)&&t.call(i)}finally{if(e)throw e.error}}},e.prototype.databaseFromApp=function(e,t,n){var r=n||e.options.databaseURL;void 0===r&&S("Can't determine Firebase Database URL.  Be sure to include databaseURL option when calling firebase.initializeApp().");var i=ee(r),o=i.repoInfo,s=void 0;return"undefined"!=typeof process&&(s=process.env.FIREBASE_DATABASE_EMULATOR_HOST),s&&(o=(i=ee(r="http://"+s+"?ns="+o.namespace)).repoInfo),ye("Invalid Firebase Database URL",1,i),i.path.isEmpty()||S("Database URL must point to the root of a Firebase Database (not including a child path)."),this.createRepo(o,e,t).database},e.prototype.deleteRepo=function(e){var t=a.safeGet(this.repos_,e.app.name);t&&a.safeGet(t,e.repoInfo_.toURLString())===e||S("Database "+e.app.name+"("+e.repoInfo_+") has already been deleted."),e.interrupt(),delete t[e.repoInfo_.toURLString()]},e.prototype.createRepo=function(e,t,n){var r=a.safeGet(this.repos_,t.name);r||(this.repos_[t.name]=r={});var i=a.safeGet(r,e.toURLString());return i&&S("Database initialized multiple times. Please make sure the format of the database URL matches with each database() call."),i=new en(e,this.useRestClient_,t,n),r[e.toURLString()]=i,i},e.prototype.forceRestClient=function(e){this.useRestClient_=e},e}(),cn=function(){function e(e){this.repo_=e,e instanceof en||S("Don't call new Database() directly - please use firebase.database()."),this.root_=new on(e,$.Empty),this.INTERNAL=new pn(this)}return Object.defineProperty(e.prototype,"app",{get:function(){return this.repo_.app},enumerable:!1,configurable:!0}),e.prototype.ref=function(e){return this.checkDeleted_("ref"),a.validateArgCount("database.ref",0,1,arguments.length),e instanceof on?this.refFromURL(e.toString()):void 0!==e?this.root_.child(e):this.root_},e.prototype.refFromURL=function(e){var t="database.refFromURL";this.checkDeleted_(t),a.validateArgCount(t,1,1,arguments.length);var n=ee(e);ye(t,1,n);var r=n.repoInfo;return r.host!==this.repo_.repoInfo_.host&&S(t+": Host name does not match the current database: (found "+r.host+" but expected "+this.repo_.repoInfo_.host+")"),this.ref(n.path.toString())},e.prototype.checkDeleted_=function(e){null===this.repo_&&S("Cannot call "+e+" on a deleted database.")},e.prototype.goOffline=function(){a.validateArgCount("database.goOffline",0,0,arguments.length),this.checkDeleted_("goOffline"),this.repo_.interrupt()},e.prototype.goOnline=function(){a.validateArgCount("database.goOnline",0,0,arguments.length),this.checkDeleted_("goOnline"),this.repo_.resume()},e.ServerValue={TIMESTAMP:{".sv":"timestamp"},increment:function(e){return{".sv":{increment:e}}}},e}(),pn=function(){function e(e){this.database=e}return e.prototype.delete=function(){return s.__awaiter(this,void 0,void 0,(function(){return s.__generator(this,(function(e){return this.database.checkDeleted_("delete"),hn.getInstance().deleteRepo(this.database.repo_),this.database.repo_=null,this.database.root_=null,this.database.INTERNAL=null,this.database=null,[2]}))}))},e}(),dn=Object.freeze({__proto__:null,forceLongPolling:function(){zt.forceDisallow(),jt.forceAllow()},forceWebSockets:function(){jt.forceDisallow()},isWebSocketsAvailable:function(){return zt.isAvailable()},setSecurityDebugCallback:function(e,t){e.repo.persistentConnection_.securityDebugCallback_=t},stats:function(e,t){e.repo.stats(t)},statsIncrementCounter:function(e,t){e.repo.statsIncrementCounter(t)},dataUpdateCount:function(e){return e.repo.dataUpdateCount},interceptServerData:function(e,t){return e.repo.interceptServerData_(t)}}),fn=Jt;Jt.prototype.simpleListen=function(e,t){this.sendRequest("q",{p:e},t)},Jt.prototype.echo=function(e,t){this.sendRequest("echo",{d:e},t)};var _n=Object.freeze({__proto__:null,DataConnection:fn,RealTimeConnection:Xt,hijackHash:function(e){var t=Jt.prototype.put;return Jt.prototype.put=function(n,r,i,o){void 0!==o&&(o=e()),t.call(this,n,r,i,o)},function(){Jt.prototype.put=t}},ConnectionTarget:Z,queryIdentifier:function(e){return e.queryIdentifier()},forceRestClient:function(e){hn.getInstance().forceRestClient(e)}}),yn=cn.ServerValue;function vn(t){Kt=t.SDK_VERSION;var n=t.INTERNAL.registerComponent(new u.Component("database",(function(e,t){var n=e.getProvider("app").getImmediate(),r=e.getProvider("auth-internal");return hn.getInstance().databaseFromApp(n,r,t)}),"PUBLIC").setServiceProps({Reference:on,Query:$e,Database:cn,DataSnapshot:Ke,enableLogging:E,INTERNAL:dn,ServerValue:yn,TEST_ACCESS:_n}).setMultipleInstances(!0));t.registerVersion("@firebase/database","0.6.7"),a.isNodeSdk()&&(e.exports=n)}vn(o),t.DataSnapshot=Ke,t.Database=cn,t.OnDisconnect=ge,t.Query=$e,t.Reference=on,t.ServerValue=yn,t.enableLogging=E,t.registerDatabase=vn}}]);