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/**
* Copyright 2013, 2014 IBM Corp.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
**/
var express = require('express');
var fs = require("fs");
var events = require("./events");
var path = require("path");
var icon_paths = [path.resolve(__dirname + '/../public/icons')];
var settings; // settings has to be global, otherwise variable not in scope for express
events.on("node-icon-dir",function(dir) {
icon_paths.push(path.resolve(dir));
});
function setupUI(_settings,app) {
settings = _settings;
// Need to ensure the url ends with a '/' so the static serving works
// with relative paths
app.get("/",function(req,res) {
if (req.originalUrl.slice(-1) != "/") {
res.redirect(req.originalUrl+"/");
} else {
req.next();
}
});
var iconCache = {};
//TODO: create a default icon
var defaultIcon = path.resolve(__dirname + '/../public/icons/arrow-in.png');
app.get("/icons/:icon",function(req,res) {
if (iconCache[req.params.icon]) {
res.sendfile(iconCache[req.params.icon]); // if not found, express prints this to the console and serves 404
} else {
for (var p=0;p<icon_paths.length;p++) {
var iconPath = path.join(icon_paths[p],req.params.icon);
if (fs.existsSync(iconPath)) {
res.sendfile(iconPath);
iconCache[req.params.icon] = iconPath;
return;
}
}
res.sendfile(defaultIcon);
}
});
app.get("/settings", function(req,res) {
var safeSettings = {
httpNodeRoot: settings.httpNodeRoot,
version: settings.version
};
res.json(safeSettings);
});
app.use("/",express.static(__dirname + '/../public'));
return app;
}
module.exports = setupUI;
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