From da0a827e7e16554534f5d5fcc4e16f7f138a2d97 Mon Sep 17 00:00:00 2001
From: Meutel <meutel@meutel.net>
Date: Mon, 20 Jan 2014 20:30:45 +0100
Subject: [PATCH] dynamic loading configured endpoint

---
 config/config.json       |  6 +++++-
 lib/endpoint/endpoint.js |  3 +--
 lib/endpoint/library.js  | 10 ++++++++++
 lib/router/router.js     | 36 +++++++++++++++++++++++++++++++++---
 4 files changed, 49 insertions(+), 6 deletions(-)
 create mode 100644 lib/endpoint/library.js

diff --git a/config/config.json b/config/config.json
index caa6943..739bbd5 100644
--- a/config/config.json
+++ b/config/config.json
@@ -1,3 +1,7 @@
 {
-	"httpPort":8080
+	"httpPort":8080,
+	"debugLevel":"debug",
+	"endpoints": {
+		"library":"endpoint/library.js"
+	}
 }
diff --git a/lib/endpoint/endpoint.js b/lib/endpoint/endpoint.js
index 42ff608..dc03ed8 100644
--- a/lib/endpoint/endpoint.js
+++ b/lib/endpoint/endpoint.js
@@ -3,9 +3,8 @@
  */
 var Action = require('../action/action.js');
 
-function Endpoint(path) {
+function Endpoint() {
 	// constructor
-	this.path = path;
 };
 Endpoint.prototype = {
 	/**
diff --git a/lib/endpoint/library.js b/lib/endpoint/library.js
new file mode 100644
index 0000000..428d3c5
--- /dev/null
+++ b/lib/endpoint/library.js
@@ -0,0 +1,10 @@
+/**
+ * Endpoint library.
+ */
+var Endpoint = require('./endpoint.js');
+function Library() {
+	Endpoint.call(this);
+}
+Library.prototype =  Object.create(Endpoint.prototype, {
+});
+exports = module.exports = new Library();
diff --git a/lib/router/router.js b/lib/router/router.js
index 7dc0460..f6f6902 100644
--- a/lib/router/router.js
+++ b/lib/router/router.js
@@ -6,6 +6,8 @@ var util = require('util')
 	Endpoint = require('../endpoint/endpoint.js'),
 	Outputter = require('../outputter/outputter');
 
+var PATH_RE=/\/([a-zA-Z0-9]+)(?:\/|$)([a-zA-Z0-9]+)?/;
+
 exports = module.exports = Router;
 function Router() {
 	// constructor
@@ -18,13 +20,37 @@ Router.prototype = {
 
 	/**
 	* Build the endpoint for given path.
-	* @param path <string> path
+	* @param path <string> full path
 	* @param callback <function(error, endpoint)> callback
 	*/
 	buildEndpoint : function (path, callback) {
 		logger.debug('Building endpoint for ' + path);
-		// TODO
-		callback(null, new Endpoint(path));
+
+		var endpoint = null;
+		var error = null;
+		if (!config.endpoints) {
+			error = new Error("no endpoints defined");
+		} else {
+			var match = PATH_RE.exec(path);
+			var resName = match ? match[1] : null;
+			logger.debug('Match resource : ' + resName);
+
+			var resModule = config.endpoints[resName];
+			if (resModule) {
+				logger.debug('Loading ' + resModule);
+				try {
+					logger.debug('../' + resModule);
+					endpoint =  require('../' + resModule);
+				} catch (err) {
+					logger.debug('Error loading module');
+					error = err;
+				}
+			} else {
+				error = new Error('No module for ' + resName);
+			}
+			
+		}
+		callback(error, endpoint);
 	},
 
 	/**
@@ -67,6 +93,10 @@ Router.prototype = {
 		// TODO sanitize url.pathname
 		this.buildEndpoint(url.pathname, function(err, endpoint) {
 			//TODO err
+			if (err) {
+				logger.error(err);
+				// TODO write error in req
+			}
 			//TODO
 			endpoint.buildAction(req.method, url, function(err, action) {
 				//TODO err