var DownloadersBase = new Class({

	Implements: [Events],

	initialize: function(){
		var self = this;

		// Add test buttons to settings page
		App.addEvent('load', self.addTestButtons.bind(self));

	},

	// Downloaders setting tests
	addTestButtons: function(){
		var self = this;

		var setting_page = App.getPage('Settings');
		setting_page.addEvent('create', function(){
			Object.each(setting_page.tabs.downloaders.groups, self.addTestButton.bind(self))
		})

	},

	addTestButton: function(fieldset, plugin_name){
		var self = this,
			button_name = self.testButtonName(fieldset);

		if(button_name.contains('Downloaders')) return;

		Api.request('download.'+plugin_name+'.is_testable',  {
			'onComplete': function(json){
                if(json.success){
                    // Only add test button if downloader is testable
                    new Element('.ctrlHolder.test_button').adopt(
                        new Element('a.button', {
                            'text': button_name,
                            'events': {
                                'click': function(){
                                    var button = fieldset.getElement('.test_button .button');
                                        button.set('text', 'Connecting...');

                                    Api.request('download.'+plugin_name+'.test', {
                                        'onComplete': function(json){

                                            button.set('text', button_name);

                                            if(json.success){
                                                var message = new Element('span.success', {
                                                    'text': 'Connection successful'
                                                }).inject(button, 'after')
                                            }
                                            else {
                                                var message = new Element('span.failed', {
                                                    'text': 'Connection failed. Check logs for details.'
                                                }).inject(button, 'after')
                                            }

                                            (function(){
                                                message.destroy();
                                            }).delay(3000)
                                        }
                                    });
                                }
                            }
                        })
                    ).inject(fieldset);
                }
			}
		});

	},

	testButtonName: function(fieldset){
		var name = String(fieldset.getElement('h2').innerHTML).substring(0,String(fieldset.getElement('h2').innerHTML).indexOf("<span"));
		return 'Test '+name;
	},

});

window.Downloaders = new DownloadersBase();