// MIT License
// Copyright Peter Širka <petersirka@gmail.com>
// Version 1.0.0

exports.name = 'angular.js';
exports.version = '1.0.0';
exports.options = { 'angular-version': '1.5.7', 'angular-i18n-version': '1.5.7' };

var fs = require('fs');
var EXTENSION_JS = '.js';
var REPOSITORY_ANGULAR = '$angular';
var REPOSITORY_ANGULAR_LOCALE = '$angular-locale';
var REPOSITORY_ANGULAR_COMMON = '$angular-common';
var REPOSITORY_ANGULAR_CONTROLLER = '$angular-controller';
var REPOSITORY_ANGULAR_OTHER = '$angular-other';

exports.install = function() {

	var options = framework.version >= 1900 ? arguments[0] : arguments[1];

	Utils.extend(exports.options, options, true);

	/*
		Include: Angular.js CDN into the head
		@version {String}
		@name {String or String Array} :: optional, example: route or resource
		return {String}
	*/
	framework.helpers.ng = function(name) {
		var self = this;

		var length = arguments.length;
		if (length > 1) {
			for (var i = 0; i < length; i++)
				framework.helpers.ng.call(self, arguments[i]);
			return '';
		}

		if (name instanceof Array) {
			length = name.length;
			for (var i = 0; i < length; i++)
				framework.helpers.ng.call(self, name[i]);
			return '';
		}

		var isCommon = name[0] === '~';

		if (isCommon)
			name = name.substring(1);

		if (name === undefined)
			name = 'angular';

		if (name === 'core' || name === '' || name === 'base' || name === 'main')
			name = 'angular';

		if (name !== 'angular' && name.indexOf('angular-') === -1)
			name = 'angular-' + name;

		var output = self.repository[REPOSITORY_ANGULAR] || '';
		var script = $script_create((isCommon ? '/common/' + name + '.min.js' : '//cdnjs.cloudflare.com/ajax/libs/angular.js/' + exports.options['angular-version'] + '/' + name + '.min.js'));

		if (name === 'angular')
			output = script + output;
		else
			output += script;

		self.repository[REPOSITORY_ANGULAR] = output;
		return '';
	};


	framework.helpers.ngCommon = function(name) {

		var self = this;
		var length = arguments.length;

		if (length > 1) {
			for (var i = 0; i < length; i++)
				framework.helpers.call(self, arguments[i]);
			return '';
		}

		if (name instanceof Array) {
			length = name.length;
			for (var i = 0; i < length; i++)
				framework.helpers.ngCommon.call(self, name[i]);
			return '';
		}

		var output = self.repository[REPOSITORY_ANGULAR_COMMON] || '';

		if (name.lastIndexOf(EXTENSION_JS) === -1)
			name += EXTENSION_JS;

		var script = $script_create('/common/' + name);
		output += script;

		self.repository[REPOSITORY_ANGULAR_COMMON] = output;
		return '';
	};

	framework.helpers.ngLocale = function(name) {

		var self = this;
		var length = arguments.length;

		if (length > 2) {
			for (var i = 1; i < length; i++)
				framework.helpers.ngLocale.call(self, arguments[i]);
			return '';
		}

		if (name instanceof Array) {
			length = name.length;
			for (var i = 0; i < length; i++)
				framework.helpers.ngLocale.call(self, name[i]);
			return '';
		}

		var output = self.repository[REPOSITORY_ANGULAR_LOCALE] || '';
		var isLocal = name[0] === '~';
		var extension = '';

		if (isLocal)
			name = name.substring(1);

		if (name.indexOf('angular-locale_') !== -1)
			name = name.replace('angular-locale_', '');

		if (name.lastIndexOf(EXTENSION_JS) === -1)
			extension = EXTENSION_JS;

		output += $script_create(isLocal ? '/i18n/angular-locale_' + name + extension : '//cdnjs.cloudflare.com/ajax/libs/angular.js/' + exports.options['angular-i18n-version'] + '/i18n/angular-locale_' + name + extension);
		self.repository[REPOSITORY_ANGULAR_LOCALE] = output;

		return '';
	};

	/*
		Include: Controller into the head
		@name {String or String Array}
		return {String}
	*/
	framework.helpers.ngController = function(name) {

		var self = this;

		var length = arguments.length;
		if (length > 1) {
			for (var i = 0; i < length; i++)
				framework.helpers.ngController.call(self, arguments[i]);
			return '';
		}

		if (name instanceof Array) {
			length = name.length;
			for (var i = 0; i < length; i++)
				framework.helpers.ngController.call(self, name[i]);
			return '';
		}

		if (name.lastIndexOf(EXTENSION_JS) === -1)
			name += EXTENSION_JS;

		var output = self.repository[REPOSITORY_ANGULAR_CONTROLLER] || '';
		var isLocal = name[0] === '~';

		if (isLocal)
			name = name.substring(1);

		output += $script_create('/controllers/' + name);

		self.repository[REPOSITORY_ANGULAR_CONTROLLER] = output;

		return '';
	};

	/*
		Include: Content from file into the body
		@name {String}
		return {String}
	*/
	framework.helpers.ngTemplate = function(name, id) {

		var self = this;

		if (id === undefined)
			id = name;

		if (name.lastIndexOf('.html') === -1)
			name += '.html';

		if (name[0] === '~')
			name = name.substring(1);
		else if (name[1] !== '/')
			name = '/templates/' + name;

		var key = 'ng-' + name;
		var tmp = framework.temporary.views[key];

		if (tmp === undefined) {
			var filename = utils.combine(self.config['directory-public-virtual'], name);

			if (fs.existsSync(filename))
				tmp = fs.readFileSync(filename).toString('utf8');
			else
				tmp = '';

			if (!self.isDebug)
				framework.temporary.views[key] = tmp;
		}

		return '<script type="text/ng-template" id="' + id + '">' + tmp + '</script>';
	};

	/*
		Include: Directive into the head
		@name {String}
		return {String}
	*/
	framework.helpers.ngDirective = function(name) {

		var self = this;

		var length = arguments.length;
		if (length > 1) {
			for (var i = 0; i < length; i++)
				framework.helpers.ngDirective.call(self, arguments[i]);
			return '';
		}

		if (name instanceof Array) {
			length = name.length;
			for (var i = 0; i < length; i++)
				framework.helpers.ngDirective.call(self, name[i]);
			return '';
		}

		if (name.lastIndexOf(EXTENSION_JS) === -1)
			name += EXTENSION_JS;

		var output = self.repository[REPOSITORY_ANGULAR_OTHER] || '';
		var isLocal = name[0] === '~';

		if (isLocal)
			name = name.substring(1);

		output += $script_create('/directives/' + name);
		self.repository[REPOSITORY_ANGULAR_OTHER] = output;
		return '';
	};

	/*
		Include: CSS into the head
		@name {String}
		return {String}
	*/
	framework.helpers.ngStyle = function(name) {

		var self = this;
		var length = arguments.length;

		if (length > 1) {
			for (var i = 0; i < length; i++)
				framework.helpers.ngStyle.call(self, arguments[i]);
			return '';
		}

		if (name instanceof Array) {
			length = name.length;
			for (var i = 0; i < length; i++)
				framework.helpers.ngStyle.call(self, name[i]);
			return '';
		}

		if (name.lastIndexOf('.css') === -1)
			name += '.css';

		self.head(name);
		return '';
	};

	/*
		Include: Service into the head
		@name {String}
		return {String}
	*/
	framework.helpers.ngService = function(name) {

		var self = this;

		var length = arguments.length;
		if (length > 1) {
			for (var i = 0; i < length; i++)
				framework.helpers.ngService.call(self, arguments[i]);
			return '';
		}

		if (name instanceof Array) {
			length = name.length;
			for (var i = 0; i < length; i++)
				framework.helpers.ngService.call(self, name[i]);
			return '';
		}

		if (name.lastIndexOf(EXTENSION_JS) === -1)
			name += EXTENSION_JS;

		var output = self.repository[REPOSITORY_ANGULAR_OTHER] || '';
		var isLocal = name[0] === '~';

		if (isLocal)
			name = name.substring(1);

		output += $script_create('/services/' + name);
		self.repository[REPOSITORY_ANGULAR_OTHER] = output;

		return '';
	};

	/*
		Include: Filter into the head
		@name {String}
		return {String}
	*/
	framework.helpers.ngFilter = function(name) {

		var self = this;

		var length = arguments.length;
		if (length > 1) {
			for (var i = 0; i < length; i++)
				framework.helpers.ngFilter.call(self, arguments[i]);
			return '';
		}

		if (name instanceof Array) {
			length = name.length;
			for (var i = 0; i < length; i++)
				framework.helpers.ngFilter.call(self, name[i]);
			return '';
		}

		if (name.lastIndexOf(EXTENSION_JS) === -1)
			name += EXTENSION_JS;

		var output = self.repository[REPOSITORY_ANGULAR_OTHER] || '';
		var isLocal = name[0] === '~';

		if (isLocal)
			name = name.substring(1);

		output += $script_create('/filters/' + name);
		self.repository[REPOSITORY_ANGULAR_OTHER] = output;

		return '';
	};

	/*
		Include: Resource into the head
		@name {String}
		return {String}
	*/
	framework.helpers.ngResource = function(name) {

		var self = this;

		var length = arguments.length;
		if (length > 1) {
			for (var i = 0; i < length; i++)
				framework.helpers.ngResource.call(self, arguments[i]);
			return '';
		}

		if (name instanceof Array) {
			length = name.length;
			for (var i = 0; i < length; i++)
				framework.helpers.ngResource.call(self, name[i]);
			return '';
		}

		if (name.lastIndexOf(EXTENSION_JS) === -1)
			name += EXTENSION_JS;

		var output = self.repository[REPOSITORY_ANGULAR_OTHER] || '';
		var isLocal = name[0] === '~';

		if (isLocal)
			name = name.substring(1);

		output += $script_create('/resources/' + name);
		self.repository[REPOSITORY_ANGULAR_OTHER] = output;

		return '';
	};

	framework.helpers.ngInclude = function(name) {
		var self = this;

		if (name.lastIndexOf(EXTENSION_JS) === -1)
			name += EXTENSION_JS;

		return $script_create(name);
	};

	framework.on('controller-render-head', event_render_head);
};

exports.uninstall = function() {
	delete framework.helpers.ng;
	delete framework.helpers.ngInclude;
	delete framework.helpers.ngResource;
	delete framework.helpers.ngFilter;
	delete framework.helpers.ngService;
	delete framework.helpers.ngDirective;
	delete framework.helpers.ngTemplate;
	delete framework.helpers.ngController;
	delete framework.helpers.ngLocale;
	delete framework.helpers.ngCommon;
	framework.removeListener('controller-render-head', event_render_head);
};

function event_render_head(controller) {
	var self = controller;
	var angularBeg = (self.repository[REPOSITORY_ANGULAR] || '') + (self.repository[REPOSITORY_ANGULAR_COMMON] || '') + (self.repository[REPOSITORY_ANGULAR_LOCALE] || '');
	var angularEnd = (angularBeg.length > 0 ? $script_create('/app.js') : '') + (self.repository[REPOSITORY_ANGULAR_OTHER] || '') + (self.repository[REPOSITORY_ANGULAR_CONTROLLER] || '');
	self.repository['$head'] += angularBeg + angularEnd;
}

function $script_create(url) {
	return '<script src="' + url + '"></script>';
}