<?php
namespace Jet_Engine\Modules\Maps_Listings;

class Render extends \Jet_Engine_Render_Listing_Grid {

	public function get_name() {
		return 'jet-engine-maps-listing';
	}

	public function default_settings() {
		return array(
			'lisitng_id'                 => '',
			'address_field'              => '',
			'add_lat_lng'                => '',
			'lat_lng_address_field'      => '',
			'auto_center'                => true,
			'max_zoom'                   => '',
			'custom_center'              => '',
			'custom_zoom'                => 11,
			'zoom_control'               => 'auto',
			'zoom_controls'              => 'true',
			'fullscreen_control'         => 'true',
			'street_view_controls'       => 'true',
			'map_type_controls'          => 'true',
			'posts_query'                => array(),
			'meta_query_relation'        => 'AND',
			'tax_query_relation'         => 'AND',
			'hide_widget_if'             => '',
			'popup_width'                => 320,
			'popup_offset'               => 40,
			'marker_type'                => 'image',
			'marker_image'               => null,
			'marker_icon'                => null,
			'marker_label_type'          => 'post_title',
			'marker_label_field'         => '',
			'marker_label_field_custom'  => '',
			'marker_label_text'          => '',
			'marker_label_format_cb'     => 0,
			'marker_label_custom'        => false,
			'marker_label_custom_output' => '%s',
			'marker_image_field'         => '',
			'marker_image_field_custom'  => '',
			'multiple_marker_types'      => false,
			'multiple_markers'           => array(),
			'marker_clustering'          => 'true',
			'popup_pin'                  => false,
			'popup_preloader'            => false,
		);
	}

	/**
	 * Get posts
	 *
	 * @param  array $settings
	 * @return array
	 */
	public function get_posts( $settings ) {

		$args  = $this->build_posts_query_args_array( $settings );
		$query = new \WP_Query( $args );

		$this->query_vars['page']    = $query->get( 'paged' ) ? $query->get( 'paged' ) : 1;
		$this->query_vars['pages']   = $query->max_num_pages;
		$this->query_vars['request'] = $args;

		return $query->posts;

	}

	/**
	 * Returns encoded map data
	 *
	 * @param  array  $settings [description]
	 * @return [type]           [description]
	 */
	public function get_map_data( $settings = array() ) {

		$result = array(
			'zoomControl'       => isset( $settings['zoom_controls'] ) ? filter_var( $settings['zoom_controls'], FILTER_VALIDATE_BOOLEAN ) : true,
			'fullscreenControl' => isset( $settings['fullscreen_control'] ) ? filter_var( $settings['fullscreen_control'], FILTER_VALIDATE_BOOLEAN ) : true,
			'streetViewControl' => isset( $settings['street_view_controls'] ) ? filter_var( $settings['street_view_controls'], FILTER_VALIDATE_BOOLEAN ) : true,
			'mapTypeControl'    => isset( $settings['map_type_controls'] ) ? filter_var( $settings['map_type_controls'], FILTER_VALIDATE_BOOLEAN ) : true,
		);

		return htmlspecialchars( json_encode( $result ) );

	}

	/**
	 * Returns map markers list
	 *
	 * @param  array  $query    [description]
	 * @param  array  $settings [description]
	 * @return [type]           [description]
	 */
	public function get_map_markers( $query = array(), $settings = array(), $json = true ) {

		$result          = array();
		$address_field   = ! empty( $settings['address_field'] ) ? $settings['address_field'] : false;
		$add_lat_lng     = ! empty( $settings['add_lat_lng'] ) ? $settings['add_lat_lng'] : false;
		$add_lat_lng     = filter_var( $add_lat_lng, FILTER_VALIDATE_BOOLEAN );
		$lat_lng_address = ! empty( $settings['lat_lng_address_field'] ) ? $settings['lat_lng_address_field'] : false;

		if ( $address_field || ( $add_lat_lng && $lat_lng_address ) ) {

			foreach ( $query as $post ) {

				$address = false;

				if ( $address_field ) {

					$fields = explode( '+', $address_field );

					if ( 1 === count( $fields ) ) {
						$address = get_post_meta( $post->ID, $address_field, true );
					} else {
						$address = Module::instance()->lat_lng->get_address_from_fields_group( $post->ID, $fields );
					}

				}

				if ( ! $address && $add_lat_lng ) {

					$fields = explode( '+', $lat_lng_address );

					if ( 1 === count( $fields ) ) {
						$address = get_post_meta( $post->ID, $lat_lng_address, true );

						if ( $address ) {

							$address = explode( ',', $address );

							if ( 2 !== count( $address ) ) {
								$address = false;
							} else {
								$address = array(
									'lat' => trim( $address[0] ),
									'lng' => trim( $address[1] ),
								);
							}

						}

					} else {

						$miss_fields = false;
						$keys        = array( 'lat', 'lng' );
						$address     = array();

						for ( $i = 0; $i < 2; $i++ ) {

							$field = isset( $fields[ $i ] ) ? $fields[ $i ] : false;
							$key   = $keys[ $i ];

							if ( ! $field ) {
								$miss_fields = true;
							} else {

								$address_val = get_post_meta( $post->ID, $field, true );

								if ( ! $address_val ) {
									$miss_fields = true;
								}

								$address[ $key ] = $address_val;

							}

						}

						if ( $miss_fields ) {
							$address = false;
							continue;
						}

					}

				}

				if ( empty( $address ) ) {
					continue;
				}

				$latlang = Module::instance()->lat_lng->get( $post->ID, $address );

				if ( empty( $latlang ) ) {
					continue;
				}

				$result[] = array(
					'id'            => $post->ID,
					'latLang'       => $latlang,
					'label'         => $this->get_marker_label( $post->ID, $settings ),
					'custom_marker' => $this->get_custom_marker( $post->ID, $settings ),
				);

			}

		}

		$result = apply_filters( 'jet-engine/maps-listing/map-markers', $result );

		if ( $json ) {
			return htmlspecialchars( json_encode( $result ) );
		} else {
			return $result;
		}

	}

	/**
	 * Returns custom marker HTML (for dynamic image source or if dynamic markers is configured) or false
	 */
	public function get_custom_marker( $post_id, $settings ) {

		$conditional_marker = $this->get_conditional_marker( $post_id, $settings );

		if ( $conditional_marker ) {
			return $conditional_marker;
		}

		$type = ! empty( $settings['marker_type'] ) ? $settings['marker_type'] : 'image';

		if ( 'dynamic_image' !== $type ) {
			return false;
		}

		$field = ! empty( $settings['marker_image_field'] ) ? $settings['marker_image_field'] : false;
		$field = ! empty( $settings['marker_image_field_custom'] ) ? $settings['marker_image_field_custom'] : $field;

		if ( ! $field )  {
			return false;
		}

		$image    = get_post_meta( $post_id, $field, true );
		$image_id = absint( $image );

		if ( $image_id ) {

			$image_cache_key = 'jet_engine_marker_' . $image_id;
			$image_url = wp_cache_get( $image_cache_key );

			if ( ! $image_url ) {
				$image_url = wp_get_attachment_image_url( $image_id, 'full' );
				wp_cache_set( $image_cache_key, $image_url );
			}
		} else {
			$image_url = $image;
		}

		return sprintf( '<img src="%1$s" alt="" style="cursor: pointer;">', $image_url );

	}

	/**
	 * Check if we need apply to this marker condiional marker data
	 */
	public function get_conditional_marker( $post_id, $settings ) {

		$multiple_marker_types = ! empty( $settings['multiple_marker_types'] ) ? $settings['multiple_marker_types'] : false;
		$multiple_marker_types = filter_var( $multiple_marker_types, FILTER_VALIDATE_BOOLEAN );

		if ( ! $multiple_marker_types ) {
			return false;
		}

		$marker_types = ! empty( $settings['multiple_markers'] ) ? $settings['multiple_markers'] : array();

		if ( empty( $marker_types ) ) {
			return false;
		}

		foreach ( $marker_types as $marker ) {

			$condition_met = false;
			$apply_type    = ! empty( $marker['apply_type'] ) ? $marker['apply_type'] : false;

			switch ( $apply_type ) {

				case 'meta_field':

					$field = ! empty( $marker['field_name'] ) ? $marker['field_name'] : false;
					$field = ! empty( $marker['field_name_custom'] ) ? $marker['field_name_custom'] : $field;

					if ( $field ) {

						$field_value = ! empty( $marker['field_value'] ) ? $marker['field_value'] : false;
						$saved_value = get_post_meta( $post_id, $field, true );

						if ( is_array( $saved_value ) && ! empty( $saved_value ) ) {
							if ( in_array( 'true', $saved_value ) || in_array( 'false', $saved_value ) ) {
								$condition_met = ( isset( $saved_value[ $field_value ] ) && true === filter_var( $saved_value[ $field_value ], FILTER_VALIDATE_BOOLEAN ) );
							} else {
								$condition_met = in_array( $field_value, $saved_value );
							}
						} else {
							$condition_met = ( $field_value == $saved_value );
						}

					}

					break;

				case 'post_term':

					$taxonomy = ! empty( $marker['tax_name'] ) ? $marker['tax_name'] : false;
					$term     = ! empty( $marker['term_name'] ) ? $marker['term_name'] : false;

					if ( $taxonomy && $term ) {
						$condition_met = has_term( $term, $taxonomy, $post_id );
					}

					break;

			}

			if ( $condition_met ) {

				$result = $this->get_marker_data( $marker );

				if ( $result && ! empty( $result['html'] ) ) {
					return $result['html'];
				} elseif ( $result && ! empty( $result['url'] ) ) {
					return sprintf( '<img src="%1$s" alt="" style="cursor: pointer;">', $result['url'] );
				}

			}

		}

		return false;

	}

	/**
	 * Returns marker label
	 *
	 * @param  [type] $post_id  [description]
	 * @param  array  $settings [description]
	 * @return [type]           [description]
	 */
	public function get_marker_label( $post_id, $settings = array() ) {

		$type = ! empty( $settings['marker_type'] ) ? $settings['marker_type'] : 'image';