<?php

if ( ! defined( 'ABSPATH' ) ) {
	exit;
}

function acewpcf_query_targets_content( $query, $content_type = '' ) {
	if ( ! ( $query instanceof WP_Query ) ) {
		return false;
	}

	$content_type  = sanitize_key( (string) $content_type );
	$content_types = array();

	if ( '' !== $content_type ) {
		$content_types[] = acewpcf_sanitize_content_type( $content_type );
	} else {
		foreach ( acewpcf_get_filter_sets() as $filter ) {
			$content_types[] = acewpcf_get_filter_content_type( $filter );
		}

		$content_types = array_values( array_unique( array_filter( $content_types ) ) );
	}

	if ( empty( $content_types ) ) {
		$content_types = array( 'post' );
	}

	$post_type = $query->get( 'post_type' );

	if ( is_array( $post_type ) ) {
		$post_type = array_values( array_filter( array_map( 'sanitize_key', $post_type ) ) );
	} else {
		$post_type = sanitize_key( (string) $post_type );
	}

	if ( '' === $post_type || empty( $post_type ) ) {
		if ( $query->is_home() || $query->is_category() || $query->is_tag() || $query->is_author() || $query->is_date() || $query->is_search() ) {
			return in_array( 'post', $content_types, true );
		}
	}

	foreach ( $content_types as $type ) {
		if ( $type === $post_type || ( is_array( $post_type ) && in_array( $type, $post_type, true ) ) ) {
			return true;
		}

		if ( $query->is_post_type_archive( $type ) ) {
			return true;
		}
	}

	if ( $query->is_tax() ) {
		$taxonomy = sanitize_key( (string) $query->get( 'taxonomy' ) );

		if ( '' !== $taxonomy ) {
			foreach ( $content_types as $type ) {
				$object_taxonomies = get_object_taxonomies( $type, 'names' );

				if ( is_array( $object_taxonomies ) && in_array( $taxonomy, $object_taxonomies, true ) ) {
					return true;
				}
			}
		}
	}

	$tax_query = $query->get( 'tax_query' );

	if ( is_array( $tax_query ) ) {
		foreach ( $tax_query as $tax_clause ) {
			if ( ! is_array( $tax_clause ) || empty( $tax_clause['taxonomy'] ) ) {
				continue;
			}

			$taxonomy = sanitize_key( (string) $tax_clause['taxonomy'] );

			foreach ( $content_types as $type ) {
				$object_taxonomies = get_object_taxonomies( $type, 'names' );

				if ( is_array( $object_taxonomies ) && in_array( $taxonomy, $object_taxonomies, true ) ) {
					return true;
				}
			}
		}
	}

	return false;
}

function acewpcf_query_matches_content_type( $query, $content_type ) {
	$content_type = acewpcf_sanitize_content_type( $content_type );

	return acewpcf_query_targets_content( $query, $content_type );
}

function acewpcf_apply_content_filters_to_query( $query ) {
	if ( is_admin() || $query->is_feed() || $query->get( 'acewpcf_skip_request_filters' ) ) {
		return;
	}

	if ( ! acewpcf_query_targets_content( $query ) ) {
		return;
	}

	$matched_content_types = array();

	foreach ( acewpcf_get_filter_sets() as $filter ) {
		$content_type = acewpcf_get_filter_content_type( $filter );

		if ( acewpcf_query_matches_content_type( $query, $content_type ) ) {
			$matched_content_types[ $content_type ] = true;
		}
	}

	if ( empty( $matched_content_types ) ) {
		return;
	}

	$tax_query = $query->get( 'tax_query' );
	$tax_query = is_array( $tax_query ) ? $tax_query : array();
	$applied_search = false;
	$author_ids     = array();
	$date_query     = $query->get( 'date_query' );
	$date_query     = is_array( $date_query ) ? $date_query : array();

	foreach ( acewpcf_get_all_active_filter_tax_clauses() as $filter_clause ) {
		$filter = acewpcf_get_filter_set( isset( $filter_clause['filter_id'] ) ? $filter_clause['filter_id'] : '' );

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

		$content_type = acewpcf_get_filter_content_type( $filter );

		if ( empty( $matched_content_types[ $content_type ] ) ) {
			continue;
		}

		if ( empty( $filter_clause['taxonomy'] ) || empty( $filter_clause['slugs'] ) ) {
			continue;
		}

		$tax_query[] = array(
			'taxonomy' => $filter_clause['taxonomy'],
			'field'    => 'slug',
			'terms'    => $filter_clause['slugs'],
			'operator' => ( isset( $filter_clause['operator'] ) && 'and' === $filter_clause['operator'] && count( $filter_clause['slugs'] ) > 1 ) ? 'AND' : 'IN',
		);
	}

	if ( ! empty( $tax_query ) ) {
		$query->set( 'tax_query', $tax_query );
	}

	foreach ( array_keys( $matched_content_types ) as $content_type ) {
		foreach ( acewpcf_get_all_active_search_queries() as $search_data ) {
			if ( $content_type !== $search_data['content_type'] ) {
				continue;
			}

			$existing = trim( (string) $query->get( 's' ) );
			$query->set( 's', trim( $existing . ' ' . $search_data['search'] ) );
			$applied_search = true;
		}

		foreach ( acewpcf_get_all_active_author_filters() as $author_data ) {
			if ( $content_type !== $author_data['content_type'] ) {
				continue;
			}

			$author_ids = array_merge( $author_ids, $author_data['author_ids'] );
		}

		foreach ( acewpcf_get_all_active_date_filters() as $date_data ) {
			if ( $content_type !== $date_data['content_type'] ) {
				continue;
			}

			$group = $date_data['clauses'];

			if ( count( $group ) > 1 ) {
				$group['relation'] = 'OR';
			}

			$date_query[] = $group;
		}
	}

	$author_ids = array_values( array_unique( array_filter( array_map( 'absint', $author_ids ) ) ) );

	if ( ! empty( $author_ids ) ) {
		$query->set( 'author__in', $author_ids );
	}

	if ( ! empty( $date_query ) ) {
		$query->set( 'date_query', $date_query );
	}

	if ( $applied_search ) {
		$query->is_search = true;
	}

	$post_type = $query->get( 'post_type' );

	if ( empty( $post_type ) && 1 === count( $matched_content_types ) ) {
		$query->set( 'post_type', array_key_first( $matched_content_types ) );
	}
}
add_action( 'pre_get_posts', 'acewpcf_apply_content_filters_to_query' );

function acewpcf_get_filter_redirect_query_args() {
	$args = array();

	foreach ( acewpcf_get_request_query_params() as $key => $value ) {
		if ( '' === $key ) {
			continue;
		}

		if ( in_array( $key, array( 'paged', 'preview', 'preview_id', 'preview_nonce', 'nonce', '_wpnonce', 'ver', 'post_type', 'p', 'page_id', 'action' ), true ) ) {
			continue;
		}

		if ( 0 === strpos( $key, 'elementor' ) || 0 === strpos( $key, 'preview' ) || 0 === strpos( $key, 'cpcf_filter_' ) ) {
			continue;
		}

		$args[ $key ] = sanitize_text_field( (string) $value );
	}

	foreach ( acewpcf_get_filter_sets() as $filter ) {
		$filter_id = isset( $filter['id'] ) ? sanitize_key( (string) $filter['id'] ) : '';

		if ( '' === $filter_id ) {
			continue;
		}

		if ( acewpcf_is_search_filter( $filter ) ) {
			$search = acewpcf_parse_filter_request_search( $filter_id );

			if ( '' !== $search ) {
				$args[ acewpcf_get_filter_query_var( $filter_id ) ] = $search;
			}

			continue;
		}

		$slugs = acewpcf_parse_filter_request_slugs( $filter_id );

		if ( ! empty( $slugs ) ) {
			$args[ acewpcf_get_filter_query_var( $filter_id ) ] = implode( ',', $slugs );
		}
	}

	return $args;
}

function acewpcf_request_contains_filter_query_vars() {
	foreach ( acewpcf_get_request_query_params() as $key => $value ) {
		unset( $value );

		if ( '' === $key ) {
			continue;
		}

		if ( 0 === strpos( $key, 'cpcf_filter_' ) ) {
			return true;
		}
	}

	return false;
}