add: default processors

index.js

@@ -3,8 +3,13 @@
 export {
  FORM,
  INFORMATION,
+
  Message,
- Lottus
+ Lottus,
+
+ create_options_processor,
+ create_input_processor,
+ create_form_processor
 }
 
 const FORM = "FORM";
@@ -194,4 +199,129 @@ class Lottus {
 
  return result;
  }
+}
+
+
+Message.prototype.header = "";
+Message.prototype.body = "";
+Message.prototype.footer = "Powered by Lottus";
+
+
+Message.prototype.addOption = function addOption(key, label, next, params){
+ if(!this.form){
+ this.form = {options: new Map()};
+ }
+
+ if(!this.form.options){
+ this.form.options = new Map();
+ }
+
+ if(key === undefined || key === null){
+ key = this.form.options.size + 1;
+ }
+
+ if(!label){
+ throw new Error("Argument label cannot be null nor empty");
+ }
+
+ this.form.options.set(key.toString(), {label, next, params});
+}
+
+
+Message.prototype.addInput = function addInput(name, type, next){
+ if(!this.form){
+ this.form = {input: {name, type, next}};
+ }
+
+ if(!this.form.input){
+ this.form = {input: {name, type, next}};
+ }
+}
+
+
+function create_options_processor(bot){
+ async function create_options_processor(req, res){
+ const options = req.form?.options;
+
+ if(options){
+ const option = options.get(req.prompt.toString());
+
+ if(option){
+ req.selected_option = option;
+ let next = req.form?.next;
+
+ if(req.selected_option.next){
+ next = req.selected_option.next;
+ }
+
+ return await bot.redirect(next, req);
+ } else {
+ res.error = "You selected an invalid option";
+ }
+ }
+
+ return res;
+ }
+
+ return create_options_processor;
+}
+
+
+function create_input_processor(bot){
+ async function input_processor(req, res){
+ const input = req.form?.input;
+
+ if(input){
+ req.input = input;
+ // let next = req.form?.next;
+ return await bot.redirect(input.next, req);
+ } else {
+ res.error = "You selected an invalid option";
+ }
+
+ return res;
+ }
+
+ return input_processor;
+}
+
+
+function create_form_processor(bot){
+ async function form_processor(req, res){
+ const options = req.form?.options;
+ const input = req.form?.input;
+
+ if(options){
+ const option = options.get(req.prompt);
+
+ if(option){
+ req.selected_option = option;
+ let next = req.form?.next;
+
+ if(req.selected_option.next){
+ next = req.selected_option.next;
+ }
+
+ return await bot.redirect(next, req);
+ } else {
+ res.error = "You selected an invalid option";
+ }
+ }
+
+ if(input){
+ req.input = input;
+
+ let next = req.form?.next;
+
+ return await bot.redirect(next, req);
+ }
+
+ if(!res.error){
+ res.error = "The form has no input nor options";
+ }
+
+ return res;
+ }
+
+ return form_processor;
 }