/* Adds metabox in movies post type. Showtimes, trailer, movie website, length and ticket price */
function foxnet_kino_create_meta_boxes() {
	
	add_meta_box( 'foxnet-movie-info', __( 'Movie Information', hybrid_get_textdomain() ), 'foxnet_kino_display_meta_boxes', 'movies', 'normal', 'high' );

}

/* Display metabox. Note that $post object is passed as a parameter, so that we can get post ID */
function foxnet_kino_display_meta_boxes( $post ) {
	
	/* get metadata values if they exist. */
	
	$foxnet_kino_showtimes = get_post_meta( $post->ID, 'foxnet_kino_showtimes', 'true' ); // Get showtimes
	$foxnet_kino_trailer = get_post_meta( $post->ID, 'foxnet_kino_trailer', 'true' ); // Get trailer
	$foxnet_kino_website = get_post_meta( $post->ID, 'foxnet_kino_website', 'true' ); // Get website
	$foxnet_kino_length = get_post_meta( $post->ID, 'foxnet_kino_length', 'true' ); // Get length
	$foxnet_kino_price = get_post_meta( $post->ID, 'foxnet_kino_price', 'true' ); // Get ticket price
	
	/* Display metadata in table. Note that there is class theEditor in textarea. It get's wysiwyg (tinyMCE) editor! */
	 
	/* Adds WP nonce field: http://codex.wordpress.org/Function_Reference/wp_nonce_field */
	wp_nonce_field( 'foxnet-kino-nonce', 'foxnet-kino-nonce-name' );
	
	/* wp_editor settings */
	$foxnet_kino_editor_settings = array(
	'wpautop' => true,
	'media_buttons' => false,
	'tinymce' => array(
		'theme_advanced_buttons1' => 'bold, bullist, numlist , ordered_list, separator, undo, redo',
		'theme_advanced_buttons2' => '',
		'theme_advanced_buttons3' => '',
		'theme_advanced_buttons4' => ''
	),
	'quicktags' => array(
		'buttons' => 'b,ul,ol,li,close'
	)
);
	
	?>
	<table class="form-table">
    	<tr>
    <th class="foxnet-kino-label"><label for="foxnet-kino-movietimes"><?php  _e( 'Movie showtimes.', hybrid_get_textdomain() ) ?></label></th>
    <td class="foxnet-kino-field"><?php wp_editor( $foxnet_kino_showtimes, 'foxnet_kino_showtimes', $foxnet_kino_editor_settings ); ?>
    <br /> <?php _e('Only ul, ol, li, p and strong html tags are accepted.', hybrid_get_textdomain() ); ?>
    </td>
    </tr>
		<tr>
    <th class="foxnet-kino-label"><label for="foxnet-kino-trailer"><?php  _e( 'Movie Trailer website.', hybrid_get_textdomain() ) ?></label></th>
    <td class="foxnet-kino-field"><input type="text" size="100" name="foxnet_kino_trailer" value="<?php echo esc_attr( $foxnet_kino_trailer ) ?>" />
    <br /> <?php _e('Remember to include http://', hybrid_get_textdomain() ); ?>
    </td>
    </tr>
    	<tr>
    <th class="foxnet-kino-label"><label for="foxnet-kino-website"><?php  _e( 'Movie website.', hybrid_get_textdomain() ) ?></label></th>
    <td class="foxnet-kino-field"><input type="text" size="100" name="foxnet_kino_website" value="<?php echo esc_attr( $foxnet_kino_website ) ?>" />
    <br /> <?php _e('Remember to include http://', hybrid_get_textdomain() ); ?>
    </td>
    </tr>
    	<tr>
    <th class="foxnet-kino-label"><label for="foxnet-kino-length"><?php  _e( 'Movie duration.', hybrid_get_textdomain() ) ?></label></th>
    <td class="foxnet-kino-field"><input type="text" size="100" name="foxnet_kino_length" value="<?php echo esc_attr( $foxnet_kino_length ) ?>" />
    <br /> <?php _e('For example 2h 20min.', hybrid_get_textdomain() ); ?>
    </td>
    </tr>
    	<tr>
    <th class="foxnet-kino-label"><label for="foxnet-kino-price"><?php  _e( 'Movie ticket price.', hybrid_get_textdomain() ) ?></label></th>
    <td class="foxnet-kino-field"><input type="text" size="100" name="foxnet_kino_price" value="<?php echo esc_attr( $foxnet_kino_price ) ?>" />
    <br /> <?php _e('For example 12 &euro;, students 10 &euro;', hybrid_get_textdomain() ); ?>
    </td>
    </tr>
	</table>
    <?php
}

/* Save metabox data. Note that pass $post_id variable as a parameter. The post ID is used when saving metadata */
function foxnet_kino_save_meta_boxes( $post_id ) {
	
	/* Verify nonce */
	if ( !wp_verify_nonce( $_POST['foxnet-kino-nonce-name'], 'foxnet-kino-nonce' ) )
		return $post_id;
	
	/* Checks if current user can edit this movie */
	if ( !current_user_can( 'edit_post', $post_id ) )
		return $post_id; 
		
	/* Get meta keys in an array */
	$movie_meta_info_all = array( 'foxnet_kino_showtimes', 'foxnet_kino_trailer', 'foxnet_kino_website', 'foxnet_kino_length', 'foxnet_kino_price' );

	/* Loop through all of post meta box arguments. */
	foreach ( $movie_meta_info_all as $movie_meta_info ) {

		/* Get the meta value of the custom field key. */
		$meta_value = get_post_meta( $post_id, $movie_meta_info, true );
		
		/* Get the meta value the user input. And sanitaze info */
		
		if ( $movie_meta_info == 'foxnet_kino_showtimes' )
			$new_meta_value = foxnet_kino_check_showtimes( $_POST[ $movie_meta_info ] );
		
		if ( $movie_meta_info == 'foxnet_kino_website' || $movie_meta_info == 'foxnet_kino_trailer' )
			$new_meta_value = esc_url_raw( $_POST[ $movie_meta_info ] );
			
		if ( $movie_meta_info == 'foxnet_kino_length' || $movie_meta_info == 'foxnet_kino_price' )
			$new_meta_value = sanitize_text_field( $_POST[ $movie_meta_info ] );

		/* If a new meta value was added and there was no previous value, add it. */
		if ( $new_meta_value && '' == $meta_value )
			add_post_meta( $post_id, $movie_meta_info, $new_meta_value, true );

		/* If the new meta value does not match the old value, update it. */
		elseif ( $new_meta_value && $new_meta_value != $meta_value )
			update_post_meta( $post_id, $movie_meta_info, $new_meta_value );

		/* If there is no new meta value but an old value exists, delete it. */
		elseif ( '' == $new_meta_value && $meta_value )
			delete_post_meta( $post_id, $movie_meta_info, $meta_value );
	}		
}
/* Check showtimes. Only accepts certain html tags */
function foxnet_kino_check_showtimes( $showtimes_allowed ) {
	
	/* Allowed tags and attributes */
	$allowed_s = array (
	'ul' => array(),
	'ol' => array(),
	'li' => array(),
	'p' => array(),
	'strong' => array()
	);
	
	$showtimes_allowed = wp_kses( $showtimes_allowed, $allowed_s );
	
	return $showtimes_allowed;
}