Merge branch 'plugin-manager' into master

client/src/modules/pluginmanager.js

@@ -9,37 +9,124 @@
 */
 
 const { Module } = require('./modulebase');
+const { BDIpc } = require('./bdipc');
+const { Utils, FileUtils } = require('./utils');
+const fs = window.require('fs');
+const path = window.require('path');
+
+
+class Plugin {
+
+    constructor(args) {
+        
+    }
+
+    start() {
+        if (this.onStart) return this.onStart();
+        return true; //Assume plugin started since it doesn't have onStart
+    }
+
+    stop() {
+        if (this.onStop) return this.onStop();
+        return true; //Assume plugin stopped since it doesn't have onStop
+    }
+
+}
 
 class PluginManager extends Module {
     
     setInitialState() {
+        window.pm = this;
         this.setState({
             plugins: []
         });
+        tests();
     }
 
     get plugins() {
         return this.state.plugins;
     }
 
-    loadPlugin(plugin) {
-        const { plugins } = this;
-        plugins.push(plugin);
-        this.setState({
-            plugins
-        });
+    async pluginsPath() {
+        //TODO Get this from config module
+        const config = await BDIpc.send('getConfig');
+        return config.paths.find(path => 'plugins' in path).plugins;
     }
 
-    getPluginByName(name) {
-        return this.plugins.find(plugin => plugin.name === name);
+    async loadPlugin(pluginPath) {
+        const { plugins } = this.state;
+
+        try {
+            const pluginsPath = await this.pluginsPath();
+            pluginPath = path.join(pluginsPath, pluginPath);
+
+            const loaded = plugins.find(plugin => plugin.pluginPath === pluginPath);
+            if (loaded) {
+                throw { 'message': 'Attempted to load an already loaded plugin' };
             }
 
-    getPluginById(id) {
-        return this.plugins.find(plugin => plugin.id === id);
+            const readConfig = await this.readConfig(pluginPath);
+            const mainPath = path.join(pluginPath, readConfig.main);
+
+            const plugin = window.require(mainPath)(Plugin, {}, {});
+            const instance = new plugin();
+
+            plugins.push(Object.assign({
+                pluginPath,
+                instance
+            }, readConfig));
+
+            this.setState(plugins);
+
+            //TODO Read plugin user config and call onStart if enabled
+
+            return instance;
+        } catch (err) {
+            throw err;
+        }
+    }
+
+    async reloadPlugin(pluginPath) {
+        //TODO Cleanup loaded plugin
+        return await this.loadPlugin(pluginPath);
+    }
+
+    getPluginByName(name) { return this.plugins.find(plugin => plugin.name === name); }
+    getPluginById(id) { return this.plugins.find(plugin => plugin.id === id); }
+
+    stopPlugin(name) {
+        const plugin = this.getPluginByName(name);
+        if (plugin && plugin.instance) return plugin.instance.stop();
+        return true; //Return true anyways since plugin doesn't exist
+    }
+
+    startPlugin(name) {
+        const plugin = this.getPluginByName(name);
+        if (plugin && plugin.instance) return plugin.instance.start();
+        return true; //Return true anyways since plugin doesn't exist
+    }
+
+    async readConfig(path) {
+        path = `${path}/config.json`;
+        return FileUtils.readJsonFromFile(path);
     }
 
 }
 
 const _instance = new PluginManager();
 
+async function tests() {
+
+    const pluginName = 'Example';
+
+    try {
+        //Load test plugin
+        const plugin = await _instance.loadPlugin(pluginName);
+        //Attempt to load the same plugin again
+        const plugin2 = await _instance.loadPlugin(pluginName);
+    } catch (err) {
+        console.log(`Failed to load plugin! ${err.message}`);
+    }
+}
+
 module.exports = { PluginManager: _instance }

tests/plugins/Example/config.json

@@ -0,0 +1,6 @@
+{
+  "name": "Example Plugin",
+  "authors": [ "Jiiks" ],
+  "version": 1.0,
+  "main":  "index.js" 
+}

tests/plugins/Example/index.js

@@ -0,0 +1,18 @@
+module.exports = (Plugin, Api, Vendor) => {
+
+    const { $, moment } = Vendor;
+    const { Events } = Api;
+
+    const test = 'Testing';
+
+    return class extends Plugin {
+        test() {
+            return test;
+        }
+
+        onStart() {
+            console.log('On Start!');
+        }
+    }
+
+}