Move header.json to package.json for node projects

modules/hello_world/header.json

@@ -1,8 +0,0 @@
-{
-    "name": "Hello world",
-    "description": "Hello world, example module for embeded messages",
-    "prefix": "!hello",
-    "flavor": "node",
-    "entrypoint": "index.js",
-    "version": "0.0.1"
-}

modules/hello_world/package.json

@@ -0,0 +1,12 @@
+{
+  "name": "hello-world",
+  "version": "0.0.1",
+  "description": "Hello world, example module for embeded messages",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "author": "Tanguy Herbron",
+  "license": "MIT",
+  "prefix": "!hello"
+}

src/module_manager.js

@@ -16,16 +16,27 @@ class ModuleManager {
     scanModules() {
         console.log("Scanning for modules");
         fs.readdirSync(process.env.MODULES_DIR).forEach(file => {
-            let rawData = fs.readFileSync(process.env.MODULES_DIR + "/" + file + "/header.json");
+            let path = process.env.MODULES_DIR + "/" + file + "/package.json";
+
+            if(fs.existsSync(path)) {
+                this.loadNodeModule(path);
+            }
+        });
+    }
+
+    loadNodeModule(path) {
+        let rawData = fs.readFileSync(path);
         let header = JSON.parse(rawData);
 
+        let modulePath = path.substring(0, path.lastIndexOf('/'));
+        let entrypoint = modulePath + "/" + header.main;
+
         this.moduleList[header.prefix] = new Module(header.name, 
             header.description, 
             header.prefix, 
-                header.flavor, 
-                process.env.MODULES_DIR + "/" + file + "/" + header.entrypoint,
+            "node",
+            entrypoint,
             header.version);
-        });
     }
 
     execute(prefix, message) {