#!/usr/bin/env node
var path = require('path');
var fs = require('fs');
var assign = require('object-assign');
var liveServer = require("./index");

var opts = {
	port: process.env.PORT,
	open: true,
	mount: [],
	logLevel: 2
};

var homeDir = process.env[(process.platform == 'win32') ? 'USERPROFILE' : 'HOME'];
var configPath = path.join(homeDir, '.live-server.json');
if (fs.existsSync(configPath)) {
	var userConfig = fs.readFileSync(configPath, 'utf8');
	assign(opts, JSON.parse(userConfig));
}

for (var i = process.argv.length - 1; i >= 2; --i) {
	var arg = process.argv[i];
	if (arg.indexOf("--port=") > -1) {
		var portString = arg.substring(7);
		var portNumber = parseInt(portString, 10);
		if (portNumber == portString) {
			opts.port = portNumber;
			process.argv.splice(i, 1);
		}
	}
	else if (arg.indexOf("--host=") > -1) {
		opts.host = arg.substring(7);
		process.argv.splice(i, 1);
	}
	else if (arg.indexOf("--open=") > -1) {
		var open = arg.substring(7);
		if (open.indexOf('/') !== 0) {
			open = '/' + open;
		}
		opts.open = open;
		process.argv.splice(i, 1);
	}
	else if (arg.indexOf("--watch=") > -1) {
		// Will be modified later when cwd is known
		opts.watch = arg.substring(8).split(",");
		process.argv.splice(i, 1);
	}
	else if (arg.indexOf("--ignore=") > -1) {
		// Will be modified later when cwd is known
		opts.ignore = arg.substring(9).split(",");
		process.argv.splice(i, 1);
	}
	else if (arg.indexOf("--ignorePattern=") > -1) {
		opts.ignorePattern = new RegExp(arg.substring(16));
		process.argv.splice(i, 1);
	}
	else if (arg == "--no-browser") {
		opts.open = false;
		process.argv.splice(i, 1);
	}
	else if (arg.indexOf("--browser=") > -1) {
		opts.browser = arg.substring(10).split(",");
		process.argv.splice(i, 1);
	}
	else if (arg.indexOf("--entry-file=") > -1) {
		var file = arg.substring(13);
		if (file.length) {
			opts.file = file;
			process.argv.splice(i, 1);
		}
	}
	else if (arg == "--quiet" || arg == "-q") {
		opts.logLevel = 0;
		process.argv.splice(i, 1);
	}
	else if (arg.indexOf("--mount=") > -1) {
		// e.g. "--mount=/components:./node_modules" will be ['/components', '<process.cwd()>/node_modules']
		var mountRule = arg.substring(8).split(":");
		mountRule[1] = path.resolve(process.cwd(), mountRule[1]);
		opts.mount.push(mountRule);
		process.argv.splice(i, 1);
	}
	else if (arg.indexOf("--wait=") > -1) {
		var waitString = arg.substring(7);
		var waitNumber = parseInt(waitString, 10);
		if (waitNumber == waitString) {
			opts.wait = waitNumber;
			process.argv.splice(i, 1);
		}
	}
	else if (arg == "--version" || arg == "-v") {
		var packageJson = require('./package.json');
		console.log(packageJson.name, packageJson.version);
		process.exit();
	}
	else if (arg == "--help" || arg == "-h") {
		console.log('Usage: live-server [-v|--version] [-h|--help] [-q|--quiet] [--port=PORT] [--host=HOST] [--open=PATH] [--no-browser] [--browser=BROWSER] [--ignore=PATH] [--ignorePattern=RGXP] [--entry-file=PATH] [--mount=ROUTE:PATH] [--wait=MILLISECONDS] [PATH]');
		process.exit();
	}
	else if (arg == "--test") {
		// Hidden param for tests to exit automatically
		setTimeout(liveServer.shutdown, 500);
		process.argv.splice(i, 1);
	}
}

if (process.argv[2]) {
	process.chdir(process.argv[2]);
}

// Patch paths
var cwd = process.cwd();
if (opts.watch) {
	opts.watch = opts.watch.map(function(relativePath) {
		return path.join(cwd, relativePath);
	});
}
if (opts.ignore) {
	opts.ignore = opts.ignore.map(function(relativePath) {
		return path.join(cwd, relativePath);
	});
}

liveServer.start(opts);