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databaseManager.js
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databaseManager.js
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var colors = require('colors');
var runningIFDatabase = true,
updateDatabaseInfoCallback = undefined,
ifDatabase = [],
lastUpdateTime = new Date(),
lastResetTime = new Date(),
clientCount = 0,
showConsoleMessages = false,
saveMode = false;
colors.setTheme({
silly: 'rainbow',
input: 'grey',
verbose: 'cyan',
prompt: 'grey',
info: 'green',
data: 'grey',
help: 'cyan',
warn: 'yellow',
debug: 'blue',
error: 'red'
});
var consoleTagMessage = "[" + "DATABASE MANAGER".yellow + "] ";
var databaseIsOpen = false;
//returns all database values
module.exports.getDatabase = function(){
return getDatabase();
}
module.exports.setDatabaseValue = function(dataKey,passedValue){
//
// IF DATABASE
//
if(runningIFDatabase){
lastUpdateTime = null;
lastUpdateTime = new Date();
updateGUICallback();
for(var i = 0;i < ifDatabase.length;i++){
if(ifDatabase[i].key == dataKey){
//deallocate
ifDatabase[i].dataValue = null;
ifDatabase[i].dataValue = passedValue;
//deallocate
passedValue = null;
//deallocate
dataKey = null;
if(showConsoleMessages){
var message = "Successful wrote " + dataKey + " to the database with value '" + passedValue + "'";
console.log("[" + "DATABASE MANAGER".yellow + "] [" + "WRITE".cyan + "] " + message.info);
}
return;
}
}
var dataObject = {
"key" : dataKey,
"dataValue" : passedValue
}
//if we get to this point, no data value has been created with that id.
ifDatabase.splice(ifDatabase.length,0,dataObject);
if(showConsoleMessages){
var message = "Successful wrote " + dataKey + " to the database with value '" + passedValue + "'";
console.log("[" + "DATABASE MANAGER".yellow + "] [" + "WRITE".cyan + "] [" + "NEW".grey + "] " + message.info);
}
return;
}
}
module.exports.updateDatabaseInfoOnChange = function(callback){
updateDatabaseInfoCallback = callback;
console.log(consoleTagMessage + "Created GUI info callback");
updateGUICallback();
}
module.exports.getDatabaseValue = function(dataKey,passedCallback){
//
// IF DATABASE
//
if(runningIFDatabase){
for(var i = 0;i < ifDatabase.length;i++){
if(ifDatabase[i].key == dataKey){
if(showConsoleMessages){
console.log("[" + "DATABASE MANAGER".yellow + "] [" + "READ".blue + "] " + "key".bold + " '" + dataKey + "' " + "value".bold + " '" + ifDatabase[i].dataValue + "'");
}
passedCallback(ifDatabase[i].dataValue);
return;
}
}
if(showConsoleMessages){
console.log("[" + "DATABASE MANAGER".yellow + "] [" + "READ".blue + "] passing null for key '" + dataKey.toString().bold + "'");
}
passedCallback(null);
return;
}
}
module.exports.clearDatabase = function(callback){
if(runningIFDatabase){
ifDatabase = [];
lastResetTime = null;
lastResetTime = new Date();
updateGUICallback();
}
}
function getDatabase(){
return ifDatabase;
}
function updateGUICallback(){
if(updateDatabaseInfoCallback != undefined){
var data =
{
"lastUpdate" : lastUpdateTime,
"lastReset" : lastResetTime,
"databaseValues" : getDatabase(),
"clients" : clientCount,
"saveMode" : saveMode
}
updateDatabaseInfoCallback(data);
}
}
module.exports.setClientCount = function(count){
clientCount = count;
updateGUICallback();
}