Command hooks [#86]

* Command API function to addHook(command, callback)
* Commands open to callbacks must return information or indicate failed completion by return false
* Hooks to be added in module onLoad
* Command loop checks for available hooks and return state, then applies with module scope.
* onLoad running moved to end of all module loading to facilitate this without order problems
* Added example for ~qadd dent

modules/command/api.js

@@ -62,6 +62,16 @@ var api = function(dbot) {
                 applies = true;
             }
             return applies;
+        },
+
+        'addHook': function(command, callback) {
+            console.log('adding hook');
+            if(_.has(dbot.commands, command)) {
+                if(!_.has(dbot.commands[command], 'hooks')) {
+                    dbot.commands[command].hooks = [];
+                }
+                dbot.commands[command].hooks.push(callback);
+            }
         }
     };
 };

modules/command/command.js

@@ -30,7 +30,12 @@ var command = function(dbot) {
                 if(this.api.applyRegex(commandName, event)) {
                     try {
                         var command = dbot.commands[commandName];
-                        command.apply(dbot.modules[command.module], [event]);
+                        var results = command.apply(dbot.modules[command.module], [event]);
+                        if(_.has(command, 'hooks') && results !== false) {
+                            _.each(command['hooks'], function(hook) {
+                                hook.apply(hook.module, results); 
+                            }, this);
+                        }
                     } catch(err) {
                         if(dbot.config.debugMode == true) {
                             event.reply('- Error in ' + commandName + ':');

modules/dent/dent.js

@@ -32,6 +32,12 @@ var dent = function(dbot) {
         }
     };
     this.commands['~dent'].regex = [/^~dent (.+)$/, 2];
+
+    this.onLoad = function() {
+        dbot.api.command.addHook('~qadd', function(key, text) {
+            this.api.post(key + ': ' + text); 
+        }.bind(this));
+    }.bind(this);
 };
 
 exports.fetch = function(dbot) {

modules/quotes/commands.js

@@ -187,11 +187,9 @@ var commands = function(dbot) {
                     'count': quotes[key].length
                 }));
 
-                // TODO hook
-                if(_.has(dbot.api, 'dent')) {
-                    dbot.api.dent.post(key + ': ' + text);
-                }
+                return { 'key': key, 'text': text };
             }
+            return false;
         },
 
         '~rq': function(event) {

run.js

@@ -229,10 +229,6 @@ DBot.prototype.reloadModules = function() {
                 return this.name;
             }
 
-            if(module.onLoad) {
-                module.onLoad();
-            }
-
             this.modules[module.name] = module;
         } catch(err) {
             console.log(this.t('module_load_error', {'moduleName': name}));
@@ -246,6 +242,12 @@ DBot.prototype.reloadModules = function() {
 
     if(_.has(this.modules, 'web')) this.modules.web.reloadPages();
     
+    _.each(this.modules, function(module, name) {
+        if(module.onLoad) {
+            module.onLoad();
+        }
+    }, this);
+
     this.save();
 };