<?php
if ( ! defined( 'ABSPATH' ) ) {
		exit;
} // Exit if accessed directly

class atkp_filter_helper {
		public $max_num_pages;
		public $found_posts;

		public function parse_params_filter( $filter = '', $parseparams = false ) {

				//*** Parse url parameters and merge existing filter array *** //

				if ( $filter == '' ) {
						$filterparams = null;
				} else {
						parse_str( str_replace( '&amp;', '&', $filter ), $filterparams );
				}


				$newfields  = atkp_udfield::load_fields();
				$taxonomies = atkp_udtaxonomy::load_taxonomies();

				//die seite muss auch one parseparams gelesen werden
				if ( ATKPTools::exists_get_parameter( 'tpage' ) ) {
						$filterparams['paged'] = ATKPTools::get_get_parameter( 'tpage', 'int' );
				}

				if ( $parseparams ) {
						if ( ATKPTools::exists_get_parameter( 'search' ) ) {
								$filterparams['search'] = ATKPTools::get_get_parameter( 'search', 'string' );
						}
						if ( ATKPTools::exists_get_parameter( 'product1' ) ) {
								$filterparams['product1'] = ATKPTools::get_get_parameter( 'product1', 'int' );
						}
						if ( ATKPTools::exists_get_parameter( 'product2' ) ) {
								$filterparams['product2'] = ATKPTools::get_get_parameter( 'product2', 'int' );
						}
						if ( ATKPTools::exists_get_parameter( 'product3' ) ) {
								$filterparams['product3'] = ATKPTools::get_get_parameter( 'product3', 'int' );
						}
						if ( ATKPTools::exists_get_parameter( 'product4' ) ) {
								$filterparams['product4'] = ATKPTools::get_get_parameter( 'product4', 'int' );
						}
						if ( ATKPTools::exists_get_parameter( 'product5' ) ) {
								$filterparams['product5'] = ATKPTools::get_get_parameter( 'product5', 'int' );
						}
						if ( ATKPTools::exists_get_parameter( 'minprice' ) && ATKPTools::exists_get_parameter( 'maxprice' ) ) {
								$filterparams['minprice'] = ATKPTools::get_get_parameter( 'minprice', 'int' );
								$filterparams['maxprice'] = ATKPTools::get_get_parameter( 'maxprice', 'int' );
						}
						if ( ATKPTools::exists_get_parameter( 'orderby' ) ) {
								$filterparams['orderby'] = ATKPTools::get_get_parameter( 'orderby', 'string' );
						}

						foreach ( $newfields as $newfield ) {
								$fieldname = 'customfield_' . $newfield->name;

								switch ( $newfield->type ) {
										case 3:
												//dropdown
												if ( ATKPTools::exists_get_parameter( $fieldname ) ) {
														$filterparams[ $fieldname ] = ATKPTools::get_get_parameter( $fieldname, 'stringarray' );
												}
												break;
										case 4:
												//yes no
												if ( ATKPTools::exists_get_parameter( $fieldname ) ) {
														$filterparams[ $fieldname ] = ATKPTools::get_get_parameter( $fieldname, 'bool' );
												}
												break;
										case 1:
												//range

												if ( $newfield->format == 'number' ) {
														if ( ATKPTools::exists_get_parameter( 'min' . $fieldname ) ) {
																$filterparams[ 'min' . $fieldname ] = ATKPTools::get_get_parameter( 'min' . $fieldname, 'int' );
														}
														if ( ATKPTools::exists_get_parameter( 'max' . $fieldname ) ) {
																$filterparams[ 'max' . $fieldname ] = ATKPTools::get_get_parameter( 'max' . $fieldname, 'int' );
														}
												}
												break;
								}
						}


						if ( get_option( ATKP_PLUGIN_PREFIX . '_fieldgroups_enabled', false ) ) {
								$groups = ATKPTools::get_fieldgroups();

								foreach ( $groups as $group ) {

										$fields = ATKPTools::get_post_setting( $group->ID, ATKP_FIELDGROUP_POSTTYPE . '_fields' );
										if ( $fields != null ) {
												foreach ( $fields as $newfield ) {
														$fieldname = 'cf_' . $newfield->name;

														switch ( $newfield->type ) {
																case 3:
																		//dropdown
																		if ( ATKPTools::exists_get_parameter( $fieldname ) ) {
																				$filterparams[ $fieldname ] = ATKPTools::get_get_parameter( $fieldname, 'stringarray' );
																		}
																		break;
																case 4:
																		//yes no
																		if ( ATKPTools::exists_get_parameter( $fieldname ) ) {
																				$filterparams[ $fieldname ] = ATKPTools::get_get_parameter( $fieldname, 'bool' );
																		}
																		break;
																case 1:
																		//range

																		if ( $newfield->format == 'number' ) {
																				if ( ATKPTools::exists_get_parameter( 'min' . $fieldname ) ) {
																						$filterparams[ 'min' . $fieldname ] = ATKPTools::get_get_parameter( 'min' . $fieldname, 'int' );
																				}
																				if ( ATKPTools::exists_get_parameter( 'max' . $fieldname ) ) {
																						$filterparams[ 'max' . $fieldname ] = ATKPTools::get_get_parameter( 'max' . $fieldname, 'int' );
																				}
																		}
																		break;
														}
												}
										}
								}
						}


						if ( $taxonomies != null ) {
								foreach ( $taxonomies as $taxonomy ) {
										$fieldname = $taxonomy->get_fieldname();

										//combo mit dropdown
										if ( ATKPTools::exists_get_parameter( $fieldname ) ) {
												$filterparams[ $fieldname ] = ATKPTools::get_get_parameter( $fieldname, 'intarray' );
										}
								}
						}
				}

				return $filterparams;
		}

		public function parse_params_products( $itemsPerPage = 25, $parseparams = false, $filter = '' ) {
				$productlist = array();

				//*** Parse url parameters and merge existing filter array *** //
				$filterparams = $this->parse_params_filter( $filter, $parseparams );

				$newfields  = atkp_udfield::load_fields();
				$taxonomies = atkp_udtaxonomy::load_taxonomies();

				$args = array(
						'posts_per_page'         => intval( $itemsPerPage ),
						'posts_per_archive_page' => intval( $itemsPerPage ),
						'post_type'              => array( ATKP_PRODUCT_POSTTYPE ),
						'post_status'            => array( 'publish' ),
						'meta_query'             => array(),
						'tax_query'              => array(),
						'relation'               => 'AND'
				);

				if ( isset( $filterparams['paged'] ) ) {
						$args['paged'] = intval( $filterparams['paged'] );
				} else {
						$args['paged'] = 1;
				}

				$criteriaExists = false;

				if ( isset( $filterparams['search'] ) ) {
						$args['s']      = strval( $filterparams['search'] );
						$criteriaExists = true;
				}

				$productids = array();
				if ( isset( $filterparams['product1'] ) ) {
						array_push( $productids, intval( $filterparams['product1'] ) );
				}
				if ( isset( $filterparams['product2'] ) ) {
						array_push( $productids, intval( $filterparams['product2'] ) );
				}
				if ( isset( $filterparams['product3'] ) ) {
						array_push( $productids, intval( $filterparams['product3'] ) );
				}
				if ( isset( $filterparams['product4'] ) ) {
						array_push( $productids, intval( $filterparams['product4'] ) );
				}
				if ( isset( $filterparams['product5'] ) ) {
						array_push( $productids, intval( $filterparams['product5'] ) );
				}

				if ( count( $productids ) > 0 ) {
						$args['post__in'] = $productids;
						$criteriaExists   = true;
				}

				$minprice = 0;
				$maxprice = 0;
				if ( isset( $filterparams['minprice'] ) && isset( $filterparams['maxprice'] ) ) {
						$minprice = intval( $filterparams['minprice'] );
						$maxprice = intval( $filterparams['maxprice'] );

						if ( $minprice == 0 ) {
								array_push( $args['meta_query'], array(
										'relation' => 'OR',
										array(
												'key'     => ATKP_PRODUCT_POSTTYPE . '_salepricefloat',
												'compare' => 'NOT EXISTS',
										),
										array(
												'key'     => ATKP_PRODUCT_POSTTYPE . '_salepricefloat',
												'value'   => array( $minprice, $maxprice ),
												'compare' => 'BETWEEN',
												'type'    => 'numeric'
										)
								) );


						} else {
								array_push( $args['meta_query'],
										array(
												'key'     => ATKP_PRODUCT_POSTTYPE . '_salepricefloat',
												'value'   => array( $minprice, $maxprice ),
												'compare' => 'BETWEEN',
												'type'    => 'numeric'
										) );
						}

						$criteriaExists = true;
				}

				//if(!$criteriaExists) {
				//    return __('Search criteria is required.', ATKP_PLUGIN_PREFIX);
				//}

				if ( isset( $filterparams['orderby'] ) ) {
						$orderBy = strval( $filterparams['orderby'] );

						switch ( $orderBy ) {
								case 'price-asc':
										$args['orderby']  = 'meta_value_num';
										$args['meta_key'] = ATKP_PRODUCT_POSTTYPE . '_salepricefloat';
										$args['order']    = 'ASC';
										break;
								case 'price-desc':
										$args['orderby']  = 'meta_value_num';
										$args['meta_key'] = ATKP_PRODUCT_POSTTYPE . '_salepricefloat';
										$args['order']    = 'DESC';
										break;
								case 'titlerank-asc':
										$args['orderby']  = 'meta_value';
										$args['meta_key'] = ATKP_PRODUCT_POSTTYPE . '_title';
										$args['order']    = 'ASC';
										break;
								case 'titlerank-desc':
										$args['orderby']  = 'meta_value';
										$args['meta_key'] = ATKP_PRODUCT_POSTTYPE . '_title';
										$args['order']    = 'DESC';
										break;
						}
				}


				foreach ( $newfields as $newfield ) {
						$fieldname = 'customfield_' . $newfield->name;

						switch ( $newfield->type ) {
								case 3:
										//dropdown
										$dropdown = isset( $filterparams[ $fieldname ] ) ? ( is_array( $filterparams[ $fieldname ] ) ? $filterparams[ $fieldname ] : explode( ',', $filterparams[ $fieldname ] ) ) : null;

										if ( $dropdown != null && count( $dropdown ) > 0 ) {
												array_push( $args['meta_query'],
														array(
																'key'     => ATKP_PRODUCT_POSTTYPE . '_' . $fieldname,
																'value'   => $dropdown,
																'compare' => 'IN',
																'type'    => 'CHAR'
														) );

												$criteriaExists = true;
										}

										break;
								case 4:
										//yes no
										$yesno = isset( $filterparams[ $fieldname ] ) ? boolval( $filterparams[ $fieldname ] ) : false;

										if ( $yesno != null && $yesno == true ) {
												array_push( $args['meta_query'],
														array(
																'key'     => ATKP_PRODUCT_POSTTYPE . '_' . $fieldname,
																'value'   => $yesno,
																'compare' => '=',
																'type'    => 'NUMERIC'
														) );

												$criteriaExists = true;
										}

										break;
								case 1:
										//range
										if ( $newfield->format == 'number' ) {
												$minnumber = isset( $filterparams[ 'min' . $fieldname ] ) ? intval( $filterparams[ 'min' . $fieldname ] ) : null;
												$maxnumber = isset( $filterparams[ 'max' . $fieldname ] ) ? intval( $filterparams[ 'max' . $fieldname ] ) : null;


												if ( ( $minnumber != null || $minnumber == 0 ) && $maxnumber != null ) {

														if ( $minnumber == 0 ) {
																array_push( $args['meta_query'], array(
																		'relation' => 'OR',
																		array(
																				'key'     => ATKP_PRODUCT_POSTTYPE . '_' . $fieldname,
																				'compare' => 'NOT EXISTS',
																		),
																		array(
																				'key'     => ATKP_PRODUCT_POSTTYPE . '_' . $fieldname,
																				'value'   => array( $minnumber, $maxnumber ),
																				'compare' => 'BETWEEN',
																				'type'    => 'numeric'
																		)
																) );


														} else {
																array_push( $args['meta_query'],
																		array(
																				'key'     => ATKP_PRODUCT_POSTTYPE . '_' . $fieldname,
																				'value'   => array( $minnumber, $maxnumber ),
																				'compare' => 'BETWEEN',
																				'type'    => 'numeric'
																		) );

																$criteriaExists = true;
														}
												}


										}
										break;
						}
				}

				if ( get_option( ATKP_PLUGIN_PREFIX . '_fieldgroups_enabled', false ) ) {
						$groups = ATKPTools::get_fieldgroups();

						foreach ( $groups as $group ) {

								$fields = ATKPTools::get_post_setting( $group->ID, ATKP_FIELDGROUP_POSTTYPE . '_fields' );
								if ( $fields != null ) {
										foreach ( $fields as $newfield ) {
												$fieldname = 'cf_' . $newfield->name;

												switch ( $newfield->type ) {
														case 3:
																//dropdown
																$dropdown = isset( $filterparams[ $fieldname ] ) ? ( is_array( $filterparams[ $fieldname ] ) ? $filterparams[ $fieldname ] : explode( ',', $filterparams[ $fieldname ] ) ) : null;

																if ( $dropdown != null && count( $dropdown ) > 0 ) {
																		array_push( $args['meta_query'],
																				array(
																						'key'     => ATKP_PRODUCT_POSTTYPE . '_' . $fieldname,
																						'value'   => $dropdown,
																						'compare' => 'IN',
																						'type'    => 'CHAR'
																				) );

																		$criteriaExists = true;
																}

																break;
														case 4:
																//yes no
																$yesno = isset( $filterparams[ $fieldname ] ) ? boolval( $filterparams[ $fieldname ] ) : false;

																if ( $yesno != null && $yesno == true ) {
																		array_push( $args['meta_query'],
																				array(
																						'key'     => ATKP_PRODUCT_POSTTYPE . '_' . $fieldname,
																						'value'   => $yesno,
																						'compare' => '=',
																						'type'    => 'NUMERIC'
																				) );

																		$criteriaExists = true;
																}

																break;
														case 1:
																//range
																if ( $newfield->format == 'number' ) {
																		$minnumber = isset( $filterparams[ 'min' . $fieldname ] ) ? intval( $filterparams[ 'min' . $fieldname ] ) : null;
																		$maxnumber = isset( $filterparams[ 'max' . $fieldname ] ) ? intval( $filterparams[ 'max' . $fieldname ] ) : null;


																		if ( ( $minnumber != null || $minnumber == 0 ) && $maxnumber != null ) {

																				if ( $minnumber == 0 ) {
																						array_push( $args['meta_query'], array(
																								'relation' => 'OR',
																								array(
																										'key'     => ATKP_PRODUCT_POSTTYPE . '_' . $fieldname,
																										'compare' => 'NOT EXISTS',
																								),
																								array(
																										'key'     => ATKP_PRODUCT_POSTTYPE . '_' . $fieldname,
																										'value'   => array( $minnumber, $maxnumber ),
																										'compare' => 'BETWEEN',
																										'type'    => 'numeric'
																								)
																						) );


																				} else {
																						array_push( $args['meta_query'],
																								array(
																										'key'     => ATKP_PRODUCT_POSTTYPE . '_' . $fieldname,
																										'value'   => array( $minnumber, $maxnumber ),
																										'compare' => 'BETWEEN',
																										'type'    => 'numeric'
																								) );

																						$criteriaExists = true;
																				}
																		}


																}
																break;
												}
										}
								}
						}
				}

				if ( $taxonomies != null ) {
						foreach ( $taxonomies as $taxonomy ) {
								$fieldname = $taxonomy->get_fieldname();

								//combo mit dropdown
								$number = isset( $filterparams[ $fieldname ] ) ? ( is_array( $filterparams[ $fieldname ] ) ? $filterparams[ $fieldname ] : array_map( 'intval', explode( ',', $filterparams[ $fieldname ] ) ) ) : null;

								if ( $number != null && count( $number ) > 0 ) {
										array_push( $args['tax_query'],
												array(
														'taxonomy' => $taxonomy->name, //or tag or custom taxonomy
														'field'    => 'id',
														'terms'    => $number
												) );

										$criteriaExists = true;
								}
						}
				}

				//var_dump($args);exit;

				$the_query = new WP_Query( $args );

				$this->max_num_pages = $the_query->max_num_pages;
				$this->found_posts   = $the_query->found_posts;


				while ( $the_query->have_posts() ) {

						$the_query->the_post();

						$prd = $the_query->post;

						$product = array();

						$product['type']  = 'productid';
						$product['value'] = $prd->ID;


						array_push( $productlist, $product );

				}

				wp_reset_postdata();

				if ( $productlist == null || count( $productlist ) == 0 ) {
						return '<span class="atkp-noproducts">' . __( 'No products found for these search criteria.', ATKP_PLUGIN_PREFIX ) . '</span>';
				} else {
						return $productlist;
				}
		}
}


?>