<?php

/**
*
*/
class MSP_Shortcode_Factory {

	public  $parsed_slider_data = array();
	private $post_id;
	private $post_slider_args   = array();

	function __construct() {

	}

	public function set_data( $parsed_data ) {

		$this->parsed_slider_data = $parsed_data;
	}

	/**
	 * Get generated ms_slider shortcode
	 *
	 * @return string  [ms_slider] shortcode or empty string on error
	 */
	public function get_ms_slider_shortcode( $the_content = '' ){

		if( ! isset( $this->parsed_slider_data['setting'] ) )
			return '';

		$shortcode_name = 'ms_slider';

		// get the parsed slider setting
		$setting = $this->parsed_slider_data['setting'];

		$exclude_attrs = array( 'custom_style' );

		// create ms_slider shortcode
		$attrs = '';
		foreach ( $setting as $attr => $attr_value ) {
			if( in_array( $attr, $exclude_attrs ) ){ continue; }
			$attrs .= sprintf( '%s="%s" ', $attr, esc_attr( $attr_value ) );
		}

		// get ms_slides shortcodes(s)
		$the_content = $this->get_ms_slides_shortcode();

		return sprintf( '[%1$s %2$s]%3$s%4$s[/%1$s]', $shortcode_name, $attrs, "\n", $the_content );
	}


	public function get_ms_slide_shortcode( $slide ){

		if( ! isset( $slide ) || empty( $slide ) )
			return '';

		$shortcode_name = 'ms_slide';

		// stores shortcode attributes
		$attrs = '';

		// the list of attributes which should be excluded from slide shortcode
		$exclude_slide_attrs = array( 'layers', 'layer_ids', 'ishide', 'info', 'is_overlay_layers' );

		foreach ( $slide as $attr => $attr_value ) {

			if( in_array( $attr, $exclude_slide_attrs ) ){
				continue;
			}

			if( 'src' == $attr && in_array( $this->parsed_slider_data['setting']['slider_type'], array( "flickr", "facebook", "instagram" ) ) ) {
				$attrs .= sprintf( '%s="%s" ', $attr, '{{image}}' );

			} elseif( 'alt' == $attr || 'title' == $attr ) {

				if( in_array( $this->parsed_slider_data['setting']['slider_type'], array( "flickr", "facebook", "instagram" ) ) ){
					$attrs .= sprintf( '%s="%s" ', $attr, '{{title}}' );
				} else {
					$attrs .= sprintf( '%s="%s" ', $attr, $this->escape_square_brackets( $attr_value ) );
				}

			// encode backets ([]) to prevent any conflict while generating slider shortcode
			} elseif( 'link_title' == $attr || 'link_rel' == $attr ) {
				$attrs .= sprintf( '%s="%s" ', $attr, $this->escape_square_brackets( $attr_value ) );

			} elseif( 'thumb' == $attr && ! empty( $attr_value ) && in_array( $this->parsed_slider_data['setting']['slider_type'], array( "flickr", "facebook", "instagram" ) ) ) {
				$attrs .= sprintf( '%s="%s" ', $attr, '{{thumb}}' );

			} elseif( 'tab' == $attr ) {

				$tab_content = '<div class="ms-tab-context">' . $attr_value . '</div>';

				// if "insert thumb" option was enabled append the thumbnail tag
				if( 'true' == $this->parsed_slider_data['setting']['thumbs_in_tab'] ) {
					$thumb_height  = $this->parsed_slider_data['setting']['thumbs_height'];
                    //$tab_content = sprintf( '{{thumb%s}}', $thumb_height ) . $tab_content;
					$tab_content = $tab_content;
				}
				$attrs .= sprintf( '%s="%s" ', $attr, esc_attr( $tab_content ) );

			} else {
				$attrs .= sprintf( '%s="%s" ', $attr, esc_attr( $attr_value ) );
			}
		}

		if( 'true' == $this->parsed_slider_data['setting']['crop'] ){
			$attrs .= sprintf( '%s="%s" ', 'crop_width' , esc_attr( $this->parsed_slider_data['setting']['width']  ) );
			$attrs .= sprintf( '%s="%s" ', 'crop_height', esc_attr( $this->parsed_slider_data['setting']['height'] ) );
		}

		// collect all shortcode output
		$the_content = '';

		// generate slide_info shortcode if slideinfo control is added
		if( 'image-gallery' == $this->parsed_slider_data['setting']['template'] ||
		    ( isset( $this->parsed_slider_data['setting']['slideinfo'] ) && 'true' == $this->parsed_slider_data['setting']['slideinfo'] )
		   ){
			if( ! empty( $slide['info'] ) )
				$the_content .= $this->get_ms_slide_info_shortcode( $slide['info'] );
			else
				$the_content .= $this->get_ms_slide_info_shortcode( "&nbsp;" );
		}

		return sprintf( '[%1$s %2$s]%4$s%3$s[/%1$s]%4$s', $shortcode_name, $attrs, $the_content, "\n" );
	}


	public function escape_square_brackets( $context ){
		if( is_null( $context ) ){
			return $content;
		}

		return str_replace( array('[', ']'), array( "%5B", "%5D" ), $context );
	}


    public function get_ms_slides_shortcode() {

        if( ! isset( $this->parsed_slider_data['slides'] ) )
            return '';

        $slides = $this->parsed_slider_data['slides'];

        $shortcodes = '';

        foreach ( $slides as $slide ) {
            if( ! empty( $slide['ishide'] ) && 'true' != $slide['ishide'] ){
                if( 'true' != $slide['is_overlay_layers'] ){
                    $shortcodes .= $this->get_ms_slide_shortcode( $slide );
                }
            }
        }

        return $shortcodes;
    }


	public function get_ms_slide_info_shortcode( $the_content = '' ){

		if( empty( $the_content ) )
			return '';

        $css_class = ( "&nbsp;" == $the_content ) ? 'ms-info-empty' : '';

		return sprintf( '[%1$s css_class="%3$s"]%2$s[/%1$s]', 'ms_slide_info', $the_content, $css_class )."\n";
	}


	public function do_template_tag( $matches ){
		if( ! isset( $matches['0'] ) )
			return $matches;

		$tag_name = preg_replace('/[{}]/', '', $matches['0'] );
		$tag_name = msp_get_template_tag_value( $tag_name, $this->post_id, $this->post_slider_args );

		return is_array( $tag_name ) ? implode( ',', $tag_name ) : $tag_name;
	}

}