/**
 * 运行时
 */

var fs = require("fs");
var path = require("path");

//系统路径设置
global.THINK_LIB_PATH = THINK_PATH + "/Lib";
global.THINK_EXTEND_PATH = THINK_LIB_PATH + "/Extend";
//应用路径设置
var config = {
	COMMON_PATH: APP_PATH + "/Common",
	LIB_PATH: APP_PATH + "/Lib",
	CONF_PATH: APP_PATH + "/Conf",
	LANG_PATH: APP_PATH + "/Lang",
	VIEW_PATH: APP_PATH + "/View",
	HTML_PATH: RUNTIME_PATH + "/Html",
	LOG_PATH: RUNTIME_PATH + "/Log",
	TEMP_PATH: RUNTIME_PATH + "/Temp",
	DATA_PATH: RUNTIME_PATH + "/Data",
	CACHE_PATH: RUNTIME_PATH + "/Cache"
}
for (var name in config) {
	if (global[name] === undefined) {
		global[name] = config[name];
	};
}
/**
 * 加载runtime时相关的文件
 * @return {[type]} [description]
 */
function load_runtime_files() {
	require(THINK_PATH + "/Common/extend.js");
	require(THINK_PATH + "/Common/common.js");
	require(THINK_PATH + "/Common/function.js");
	//别名导入
	var alias = require(THINK_PATH + "/Conf/alias.js");
	aliasImport(alias);

	if (!fs.existsSync(LIB_PATH)) {
		build_app_dir();
	} else if (!fs.existsSync(CACHE_PATH)) {
		check_runtime();
	}
}
/**
 * 检查Runtime目录是否可写
 * @return {[type]} [description]
 */
function check_runtime() {
	if (!fs.existsSync(RUNTIME_PATH)) {
		mkdir(RUNTIME_PATH);
	} else {
		if (!isWritable(RUNTIME_PATH)) {
			console.log(RUNTIME_PATH + " 目录不可写");
			process.exit(0);
		};
	}
}
/**
 * 生成项目对应的目录和文件
 * @return {[type]} [description]
 */
function build_app_dir() {
	if (!isDir(APP_PATH)) {
		mkdir(APP_PATH);
	};
	if (isWritable(APP_PATH)) {
		var dirs = [
			LIB_PATH, RUNTIME_PATH, CONF_PATH,
			COMMON_PATH, CACHE_PATH,
			LOG_PATH, TEMP_PATH, DATA_PATH,
			LIB_PATH + '/Model',
			LIB_PATH + '/Controller/Home',
			LIB_PATH + '/Behavior',
			//LIB_PATH + '/Driver',
			VIEW_PATH + "/Home"
		];
		dirs.forEach(function(dir) {
			if (!isDir(dir)) {
				mkdir(dir, "0755");
			};
		});
		copyFiles();
	} else {
		console.log(APP_PATH + " is not writable.");
		process.exit(0);
	}
}
/**
 * 拷贝相关的文件
 * @return {[type]} [description]
 */
function copyFiles() {
	var sourceFiles = [
		THINK_PATH + "/View/IndexController.js",
		THINK_PATH + "/View/index_index.html",
		THINK_PATH + "/View/common.js",
		THINK_PATH + "/View/ctrl.sh",
		THINK_PATH + "/View/config.js"
	];
	var dstFiles = [
		LIB_PATH + "/Controller/Home/IndexController.js",
		VIEW_PATH + "/Home/index_index.html",
		COMMON_PATH + "/common.js",
		APP_PATH + "/../ctrl.sh",
		CONF_PATH + "/config.js"
	];
	dstFiles.forEach(function(file, i) {
		if (!isFile(file)) {
			mkdir(path.dirname(file));
			var readStream = fs.createReadStream(sourceFiles[i]);
			var writeStream = fs.createWriteStream(file);
			readStream.pipe(writeStream);
			readStream.on("end", function() {});
		};
	})
}

load_runtime_files();
//启动
thinkRequire('Think').start();