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<?php

namespace Zotlabs\Module\Admin;


class Themes {

	function post() {

		$theme = argv(2);
		if (is_file("view/theme/$theme/php/config.php")){
			require_once("view/theme/$theme/php/config.php");
			// fixme add parent theme if derived
			if (function_exists("theme_admin_post")){
				theme_admin_post($a);
			}
		}
		info(t('Theme settings updated.'));
		if(is_ajax()) 
			return;
	
		goaway(z_root() . '/admin/themes/' . $theme );
	}


	

	
	/**
	 * @brief Themes admin page.
	 *
	 * @return string
	 */

	function get(){
	
		$allowed_themes_str = get_config('system', 'allowed_themes');
		$allowed_themes_raw = explode(',', $allowed_themes_str);
		$allowed_themes = array();
		if(count($allowed_themes_raw))
			foreach($allowed_themes_raw as $x)
				if(strlen(trim($x)))
					$allowed_themes[] = trim($x);
	
		$themes = array();
		$files = glob('view/theme/*');
		if($files) {
			foreach($files as $file) {
				$f = basename($file);
				$is_experimental = intval(file_exists($file . '/.experimental'));
				$is_supported = 1-(intval(file_exists($file . '/.unsupported'))); // Is not used yet
				$is_allowed = intval(in_array($f,$allowed_themes));
				$themes[] = array('name' => $f, 'experimental' => $is_experimental, 'supported' => $is_supported, 'allowed' => $is_allowed);
			}
		}
	
		if(! count($themes)) {
			notice( t('No themes found.'));
			return '';
		}
	
		/*
		 * Single theme
		 */
	
		if (\App::$argc == 3){
			$theme = \App::$argv[2];
			if(! is_dir("view/theme/$theme")){
				notice( t("Item not found.") );
				return '';
			}
	
			if (x($_GET,"a") && $_GET['a']=="t"){
				check_form_security_token_redirectOnErr('/admin/themes', 'admin_themes', 't');
	
				// Toggle theme status
	
				$this->toggle_theme($themes, $theme, $result);
				$s = $this->rebuild_theme_table($themes);
				if($result)
					info( sprintf('Theme %s enabled.', $theme));
				else
					info( sprintf('Theme %s disabled.', $theme));
	
				set_config('system', 'allowed_themes', $s);
				goaway(z_root() . '/admin/themes' );
			}
	
			// display theme details
			require_once('library/markdown.php');
	
			if ($this->theme_status($themes,$theme)) {
				$status="on"; $action= t("Disable");
			} else {
				$status="off"; $action= t("Enable");
			}
	
			$readme=Null;
			if (is_file("view/theme/$theme/README.md")){
				$readme = file_get_contents("view/theme/$theme/README.md");
				$readme = Markdown($readme);
			} else if (is_file("view/theme/$theme/README")){
				$readme = "<pre>". file_get_contents("view/theme/$theme/README") ."</pre>";
			}
	
			$admin_form = '';
			if (is_file("view/theme/$theme/php/config.php")){
				require_once("view/theme/$theme/php/config.php");
				if(function_exists("theme_admin")){
					$admin_form = theme_admin($a);
				}
			}
	
			$screenshot = array( get_theme_screenshot($theme), t('Screenshot'));
			if(! stristr($screenshot[0],$theme))
				$screenshot = null;
	
			$t = get_markup_template('admin_plugins_details.tpl');
			return replace_macros($t, array(
				'$title' => t('Administration'),
				'$page' => t('Themes'),
				'$toggle' => t('Toggle'),
				'$settings' => t('Settings'),
				'$baseurl' => z_root(),
			
				'$plugin' => $theme,
				'$status' => $status,
				'$action' => $action,
				'$info' => get_theme_info($theme),
				'$function' => 'themes',
				'$admin_form' => $admin_form,
				'$str_author' => t('Author: '),
				'$str_maintainer' => t('Maintainer: '),
				'$screenshot' => $screenshot,
				'$readme' => $readme,
	
				'$form_security_token' => get_form_security_token('admin_themes'),
			));
		}
	
		/*
		 * List themes
		 */
	
		$xthemes = array();
		if($themes) {
			foreach($themes as $th) {
				$xthemes[] = array($th['name'],(($th['allowed']) ? "on" : "off"), get_theme_info($th['name']));
			}
		}
	
		$t = get_markup_template('admin_plugins.tpl');
		return replace_macros($t, array(
			'$title' => t('Administration'),
			'$page' => t('Themes'),
			'$submit' => t('Submit'),
			'$baseurl' => z_root(),
			'$function' => 'themes',
			'$plugins' => $xthemes,
			'$experimental' => t('[Experimental]'),
			'$unsupported' => t('[Unsupported]'),
			'$form_security_token' => get_form_security_token('admin_themes'),
		));
	}
	


	/**
	 * @param array $themes
	 * @param string $th
	 * @param int $result
	 */
	function toggle_theme(&$themes, $th, &$result) {
		for($x = 0; $x < count($themes); $x ++) {
			if($themes[$x]['name'] === $th) {
				if($themes[$x]['allowed']) {
					$themes[$x]['allowed'] = 0;
					$result = 0;
				}
				else {
					$themes[$x]['allowed'] = 1;
					$result = 1;
				}
			}
		}
	}
	
	/**
	 * @param array $themes
	 * @param string $th
	 * @return int
	 */
	function theme_status($themes, $th) {
		for($x = 0; $x < count($themes); $x ++) {
			if($themes[$x]['name'] === $th) {
				if($themes[$x]['allowed']) {
					return 1;
				}
				else {
					return 0;
				}
			}
		}
		return 0;
	}
	
	
	/**
	 * @param array $themes
	 * @return string
	 */
	function rebuild_theme_table($themes) {
		$o = '';
		if(count($themes)) {
			foreach($themes as $th) {
				if($th['allowed']) {
					if(strlen($o))
						$o .= ',';
					$o .= $th['name'];
				}
			}
		}
		return $o;
	}
	







}