<?php

/*
    Copyright 2012-2020 OpenBroadcaster, Inc.

    This file is part of OpenBroadcaster Server.

    OpenBroadcaster Server is free software: you can redistribute it and/or modify
    it under the terms of the GNU Affero General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    OpenBroadcaster Server is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU Affero General Public License for more details.

    You should have received a copy of the GNU Affero General Public License
    along with OpenBroadcaster Server.  If not, see <http://www.gnu.org/licenses/>.
*/

/**
 * UI manager handles such things as themes, languages, and outputting the correct
 * HTML in general.
 *
 * @package Controller
 */
class UI extends OBFController
{

  public function __construct()
  {
    parent::__construct();
    $this->user->require_authenticated();
		$this->html_data = array();
		$this->theme = !empty($this->user->userdata['theme']) && $this->user->userdata['theme']!='default' ? $this->user->userdata['theme'] : false;
  }

  /**
   * List all UI themes.
   *
   * @return themes
   */
  public function get_themes()
  {
    return array(true,'Themes',$this->models->ui('get_themes'));
  }

  /**
   * List all languages
   *
   * @return languages
   */
  public function get_languages()
  {
    return array(true, 'Languages', $this->models->ui('get_languages'));
  }

	/**
   * Returns all HTML files in the framework as a single JSON object, including
   * the views for all installed modules.
   *
   * @return [html_file => html]
   */
	public function html()
	{
		$modules = $this->models->modules('get_installed');

		$this->html_data = array();
		$this->find_core_html_files($this->theme);
		foreach($modules as $module) $this->find_module_html_files('modules/'.$module['dir'].'/html');

		return array(true,'HTML Data',$this->html_data);

	}

  // TODO this should be in UI model? then we don't need to check theme in this file?
	private function find_core_html_files($theme=false,$dir='')
	{

		$files = scandir('html/'.$dir);

		foreach($files as $file)
		{

		  $dirfile = ($dir!='' ? $dir.'/' : '').$file;
		  $fullpath = 'html/'.$dirfile;

		  if(is_dir($fullpath) && $file[0]!='.') $this->find_core_html_files($theme,$dirfile);

		  elseif(is_file($fullpath) && substr($fullpath,-5)=='.html')
		  {
		    // use theme override?
		    if($theme && is_file('themes/'.$theme.'/'.$fullpath)) $fullpath = 'themes/'.$theme.'/'.$fullpath;
		    // echo "OB.UI.htmlCache['$dirfile'] = $.ajax({'url': '$fullpath', 'async': false}).responseText;\n";
				$this->html_data[$dirfile] = file_get_contents($fullpath);
		  }

		}

	}

  // TODO this should be in UI model? then we don't need to check theme in this file?
	private function find_module_html_files($dir)
	{

		if(!is_dir($dir)) return;

		$files = scandir($dir);

		foreach($files as $file)
		{

		  $dirfile = $dir.'/'.$file;

		  if(is_dir($dirfile) && $file[0]!='.') $this->find_module_html_files($dirfile);

		  elseif(is_file($dirfile))
		  {
		    $index_array = explode('/',$dirfile);
		    array_splice($index_array,2,1);
		    // echo "OB.UI.htmlCache['".implode('/',$index_array)."'] = $.ajax({'url': '$dirfile', 'async': false}).responseText;\n";
				$this->html_data[implode('/',$index_array)] = file_get_contents($dirfile);
		  }

		}

	}


}