<?php

function wp_super_cache_wptouch_admin() {
	global $cache_wptouch, $wp_cache_config_file, $valid_nonce;
	
	$cache_wptouch = $cache_wptouch == '' ? '0' : $cache_wptouch;

	if(isset($_POST['cache_wptouch']) && $valid_nonce) {
		if ( $cache_wptouch == (int)$_POST['cache_wptouch'] ) {
			$changed = false;
		} else {
			$changed = true;
		}
		$cache_wptouch = (int)$_POST['cache_wptouch'];
		wp_cache_replace_line('^ *\$cache_wptouch', "\$cache_wptouch = '$cache_wptouch';", $wp_cache_config_file);
	}
	$id = 'wptouch-section';
	?>
		<fieldset id="<?php echo $id; ?>" class="options"> 
		<h4><?php _e( 'WPTouch', 'wp-super-cache' ); ?></h4>
		<form name="wp_manager" action="" method="post">
		<label><input type="radio" name="cache_wptouch" value="1" <?php if( $cache_wptouch ) { echo 'checked="checked" '; } ?>/> <?php _e( 'Enabled', 'wp-super-cache' ); ?></label>
		<label><input type="radio" name="cache_wptouch" value="0" <?php if( !$cache_wptouch ) { echo 'checked="checked" '; } ?>/> <?php _e( 'Disabled', 'wp-super-cache' ); ?></label>
		<?php
		echo '<p>' . __( 'Provides support for <a href="http://wordpress.org/extend/plugins/wptouch/">WPTouch</a> mobile theme and plugin.', 'wp-super-cache' ) . '</p>';
		if ( isset( $changed ) && $changed ) {
			if ( $cache_wptouch )
				$status = __( "enabled" );
			else
				$status = __( "disabled" );
			echo "<p><strong>" . sprintf( __( "WPTouch support is now %s", 'wp-super-cache' ), $status ) . "</strong></p>";
		}
	echo '<div class="submit"><input ' . SUBMITDISABLED . 'type="submit" value="' . __( 'Update', 'wp-super-cache' ) . '" /></div>';
	wp_nonce_field('wp-cache');
	?>
	</form>
	</fieldset>
	<?php
}
add_cacheaction( 'cache_admin_page', 'wp_super_cache_wptouch_admin' );

function wp_super_cache_wptouch_notice() {
	global $cache_enabled, $cache_wptouch;
	if( $cache_enabled )
		echo '<div class="error"><p><strong>' . __('WPTouch plugin detected! Please go to the Supercache plugins page and enable the WPTouch helper plugin.', 'wp-super-cache' ) . '</strong></p></div>';
}
function wp_super_cache_wptouch_exists() {
	global $cache_wptouch;
	if ( $cache_wptouch == 1 )
		return false;

	if ( is_admin() && function_exists( 'wptouch_get_plugin_dir_name' ) )
		add_action( 'admin_notices', 'wp_super_cache_wptouch_notice' );
}

if ( isset( $_GET[ 'page' ] ) && $_GET[ 'page' ] == 'wpsupercache' ) {
	add_cacheaction( 'add_cacheaction', 'wp_super_cache_wptouch_exists' );
}

// disable mobile checking if 
function wp_super_cache_maybe_disable_wptouch( $t ) {
	global $cache_wptouch, $wptouch_exclude_ua;
	if ( $cache_wptouch != 1 )
		return false;

	if ( ( isset( $_COOKIE[ 'wptouch_switch_toggle' ] ) && $_COOKIE[ 'wptouch_switch_toggle' ] == 'normal' ) ||
		( isset( $_COOKIE[ 'wptouch-pro-view' ] ) && $_COOKIE[ 'wptouch-pro-view' ] == 'desktop' ) )
		return true;

	$ua = explode( ",", $wptouch_exclude_ua );
	foreach( $ua as $agent ) {
		if ( preg_match( "#$agent#i", $_SERVER[ 'HTTP_HOST' ] ) )
			return true; // disable mobile ua check if matches the exclude list in wptouch
	}

	return false;

}

add_cacheaction( 'disable_mobile_check', 'wp_super_cache_maybe_disable_wptouch' );

function wp_super_cache_wptouch_browsers( $browsers ) {
	global $cache_wptouch, $wptouch_exclude_ua, $wp_cache_config_file;

	if ( false == function_exists( 'bnc_wptouch_get_exclude_user_agents' ) || false == function_exists( 'bnc_wptouch_get_user_agents' ) )
		return $browsers;

	$browsers = implode( ',', bnc_wptouch_get_exclude_user_agents() ); // hack, support exclude agents too
	if ( $browsers != $wptouch_exclude_ua ) {
		wp_cache_replace_line('^ *\$wptouch_exclude_ua', "\$wptouch_exclude_ua = '$browsers';", $wp_cache_config_file);
		$wptouch_exclude_ua = $browsers;
	}

	return bnc_wptouch_get_user_agents();
}

function wp_super_cache_wptouch_prefixes( $prefixes ) {
	return array(); // wptouch doesn't support UA prefixes
} 

function wp_super_cache_wptouch_cookie_check( $cache_key ) {
	if ( false == isset( $_COOKIE[ 'wptouch_switch_toggle' ] ) )
		return $cache_key;
	if ( $_COOKIE[ 'wptouch_switch_toggle' ] == 'normal' || $_COOKIE[ 'wptouch_switch_toggle' ] == 'mobile' )
		return $_COOKIE[ 'wptouch_switch_toggle' ];

	if ( isset( $_COOKIE[ 'wptouch-pro-view' ] ) ) {
		if ( $_COOKIE[ 'wptouch-pro-view' ] == 'desktop' )
			return 'normal';
		else
			return $_COOKIE[ 'wptouch-pro-view' ];
	}

	return $cache_key;
}

if ( isset( $cache_wptouch ) && $cache_wptouch == 1 ) {
	add_cacheaction( 'wp_super_cache_mobile_browsers', 'wp_super_cache_wptouch_browsers' );
	add_cacheaction( 'wp_super_cache_mobile_prefixes', 'wp_super_cache_wptouch_prefixes' );
	add_cacheaction( 'wp_cache_check_mobile', 'wp_super_cache_wptouch_cookie_check' );
}
?>
