<?php
/** Free native configuration: public taxonomy filtering only. */
namespace Fqbpro\Plugin\Blocks\FilterHeader;
use Fqbpro\Plugin\Catalog\Service;
use Fqbpro\Plugin\Catalog\Exclusions;
if (!defined('ABSPATH')) { exit; }
require_once __DIR__ . '/blocks/control-tree.php';
const CHILD_CONTROL_PREFIX = 'filter-query-block-pro/filter-';
function normalize_text($value, $fallback = '', $length = 180)
{
	$value = is_scalar($value) ? trim(sanitize_text_field((string) $value)) : '';
	return $value !== '' ? (function_exists('mb_substr') ? mb_substr($value, 0, $length) : substr($value, 0, $length)) : $fallback;
}
function normalize_search_columns($columns)
{
	$columns = array_values(array_intersect(['post_title', 'post_excerpt', 'post_content'], (array) $columns));
	return $columns ?: ['post_title'];
}
function get_catalog_sources($post_type, $allow_read_through = false)
{
	$sources = [];
	foreach (Service\get_post_type_catalog($post_type)['taxonomies'] ?? [] as $taxonomy) {
		$sources['taxonomy:' . $taxonomy['slug']] = ['type' => 'taxonomy', 'source' => $taxonomy['slug'], 'label' => $taxonomy['label'], 'valueType' => 'term', 'terms' => $taxonomy['terms']];
	}
	return $sources;
}
function native_source_capabilities($sources)
{
	$result = [];
	foreach ($sources as $id => $source) $result[$id] = ['choice' => $source['type'] === 'taxonomy' && (!empty($source['terms']) || taxonomy_exists($source['source'] ?? '')), 'number' => false, 'date' => false, 'sort' => false, 'storageFormat' => '', 'numeric' => false];
	return $result;
}
function get_control_choices($filter, $sources)
{
	$result = [];
	$source = $sources[$filter['id'] ?? ''] ?? [];
	if (Exclusions\is_source_excluded($source['type'] ?? '', $source['source'] ?? '')) return [];
	$selected = array_map('strval', \Fqbpro\Plugin\Compatibility\Languages\term_values((array) ($filter['values'] ?? []), $source['source'] ?? ''));
	foreach ($sources[$filter['id'] ?? '']['terms'] ?? [] as $term) {
		$value = (string) $term['slug'];
		if (Exclusions\is_term_excluded($source['source'] ?? '', $value)) continue;
		if (($filter['choiceMode'] ?? '') === 'selected' && !in_array($value, $selected, true)) continue;
		$result[] = ['value' => $value, 'label' => $term['name'], 'count' => (int) $term['count']];
	}
	if (isset($filter['order'])) {
		[$mode, $direction] = array_pad(explode('-', $filter['order'], 2), 2, 'asc');
		usort($result, static function ($left, $right) use ($mode, $direction) {
			$a = (string) $left[$mode === 'text' ? 'label' : 'value'];
			$b = (string) $right[$mode === 'text' ? 'label' : 'value'];
			$comparison = $mode === 'number' ? ((float) $a <=> (float) $b) : ($mode === 'date' ? ((strtotime($a) ?: 0) <=> (strtotime($b) ?: 0)) : strnatcasecmp($a, $b));
			return $comparison * ($direction === 'desc' ? -1 : 1);
		});
	}
	return $result;
}
function normalize_native_controls($raw_controls, $sources)
{
	$sources = native_taxonomy_sources($sources, $raw_controls);
	$result = $seen = $singletons = [];
	$capabilities = native_source_capabilities($sources);
	foreach (array_slice(is_array($raw_controls) ? $raw_controls : [], 0, 48) as $raw) {
		if (!is_array($raw)) continue;
		$id = $raw['controlId'] ?? '';
		$kind = $raw['kind'] ?? '';
		if (!is_string($id) || !preg_match('/^[a-zA-Z][a-zA-Z0-9_-]{0,63}$/', $id) || isset($seen[$id]) || !in_array($kind, ['choice', 'search', 'date', 'number', 'sort', 'apply', 'reset'], true)) continue;
		$seen[$id] = true;
		if (in_array($kind, ['search', 'sort'], true) && isset($singletons[$kind])) continue;
		$singletons[$kind] = true;
		$source_id = is_string($raw['sourceId'] ?? null) ? $raw['sourceId'] : '';
		$source = $sources[$source_id] ?? [];
		$settings = is_array($raw['settings'] ?? null) ? $raw['settings'] : [];
		if ($kind === 'choice') $settings = native_choice_settings($settings, $raw);
		$default_label = ['apply' => __('Apply filters', 'accomplice-query-loop-filters'), 'reset' => __('Reset filters', 'accomplice-query-loop-filters'), 'search' => __('Search', 'accomplice-query-loop-filters'), 'sort' => __('Sort by', 'accomplice-query-loop-filters'), 'date' => __('Date', 'accomplice-query-loop-filters'), 'number' => __('Number', 'accomplice-query-loop-filters'), 'choice' => $source['label'] ?? __('Categories', 'accomplice-query-loop-filters')][$kind];
		$control = ['controlId' => $id, 'kind' => $kind, 'sourceId' => $source_id, 'label' => normalize_text($raw['label'] ?? '', $default_label), ...(is_string($raw['urlParameter'] ?? null) && $raw['urlParameter'] !== '' ? ['urlParameter' => $raw['urlParameter']] : []), 'settings' => [], 'errors' => [], 'valueType' => $source['valueType'] ?? '', 'storageFormat' => ''];
		if (!in_array($kind, ['choice', 'apply', 'reset'], true) || ($kind === 'choice' && !str_starts_with($source_id, 'taxonomy:'))) $control['errors'][] = 'requires-pro';
		if ($kind === 'choice') {
			if (str_starts_with($source_id, 'taxonomy:') && empty($capabilities[$source_id]['choice'])) $control['errors'][] = 'unsupported-source';
			$presentation = in_array($settings['presentation'] ?? '', ['dropdown', 'checkbox', 'radio', 'buttons'], true) ? $settings['presentation'] : 'dropdown';
			$choices = array_slice(array_values(array_unique(array_map('strval', array_filter((array) ($settings['choices'] ?? []), 'is_scalar')))), 0, 100);
			$choice_mode = ($settings['choiceMode'] ?? '') === 'selected' || $choices ? 'selected' : 'all';
			$control['settings'] = ['presentation' => $presentation, 'multiple' => $presentation !== 'radio' && ($settings['multiple'] ?? false) === true, 'operator' => ($settings['operator'] ?? '') === 'AND' ? 'AND' : 'IN', 'includeChildren' => ($settings['includeChildren'] ?? true) !== false, 'choices' => $choices];
			if ($choice_mode === 'selected' && !$choices) $control['settings']['choiceMode'] = 'selected';
			foreach (['searchable', 'showCount', 'showEmpty'] as $flag) if (($settings[$flag] ?? false) === true) $control['settings'][$flag] = true;
			if (in_array($settings['choiceStyle'] ?? '', ['text', 'outlined', 'pill', 'underline'], true)) $control['settings']['choiceStyle'] = $settings['choiceStyle'];
			if (in_array($settings['order'] ?? '', ['text-asc', 'text-desc', 'number-asc', 'number-desc', 'date-asc', 'date-desc'], true)) $control['settings']['order'] = $settings['order'];
			$control['choices'] = get_control_choices(['id' => $source_id, 'choiceMode' => $choice_mode, 'values' => $choices, 'order' => $control['settings']['order'] ?? 'text-asc'], $sources);
		}
		$control['errors'] = array_values(array_unique($control['errors']));
		$result[] = $control;
	}
	return $result;
}
function normalize_configuration($attributes, $post_type, $query_id = 0, $catalog_sources = null)
{
	$attributes = is_array($attributes) ? $attributes : [];
	$behavior = is_array($attributes['behavior'] ?? null) ? $attributes['behavior'] : [];
	return ['nativeVersion' => 1, 'queryId' => absint($query_id), 'postType' => sanitize_key($post_type),
		'nativeControls' => normalize_native_controls($attributes['nativeControls'] ?? [], Exclusions\filter_sources(is_array($catalog_sources) ? $catalog_sources : get_catalog_sources($post_type))),
		'errors' => !empty($attributes['_fqbpUnavailableConfiguration']) ? ['requires-pro'] : [],
		'labels' => ['filterBy' => normalize_text($attributes['labels']['filterBy'] ?? '', __('Filter by', 'accomplice-query-loop-filters'))],
		'behavior' => ['autoApply' => ($behavior['autoApply'] ?? true) !== false, 'searchDelay' => min(2000, max(200, absint($behavior['searchDelay'] ?? 500)))],
	];
}
function resolve_header_attributes($block)
{
	$block = upgrade_v4_header_block($block);
	$attributes = $block['attrs'] ?? [];
	$attributes['nativeControls'] = native_controls_from_tree($block);
	return $attributes;
}
/** Old v4 attributes are mapped to native descriptors without rewriting saved content. */
function upgrade_v4_header_block($block)
{
	if (!is_array($block) || (int) ($block['attrs']['nativeVersion'] ?? 0) === 1) return $block;
	$attrs = is_array($block['attrs'] ?? null) ? $block['attrs'] : [];
	$children = $counts = [];
	$make = static function ($kind, $label, $source = '', $settings = []) use (&$children, &$counts) {
		$counts[$kind] = ($counts[$kind] ?? 0) + 1;
		$children[] = ['blockName' => CHILD_CONTROL_PREFIX . $kind, 'attrs' => ['controlId' => 'c-' . $kind . '-' . $counts[$kind], 'label' => $label, 'sourceId' => $source, 'settings' => $settings], 'innerBlocks' => [], 'innerHTML' => '', 'innerContent' => []];
	};
	// Older flat child compositions are retained for Pro to resolve. Never turn a
	// saved restriction that cannot be read here into an unrestricted query.
	if (!empty($attrs['useChildBlocks'])) $attrs['_fqbpUnavailableConfiguration'] = true;
	foreach (array_slice((array) ($attrs['filters'] ?? []), 0, 24) as $filter) {
		if (!is_array($filter)) continue;
		$source = $filter['id'] ?? (($filter['type'] ?? '') . ':' . ($filter['source'] ?? ''));
		$multiple = empty($attrs['behavior']['singleSelect']) && ($attrs['behavior']['multipleSelections'] ?? ($filter['multiple'] ?? false));
		$make('choice', $filter['label'] ?? $source, $source, ['presentation' => ($attrs['display']['presentation'] ?? 'dropdown') === 'dropdown' ? 'dropdown' : ($multiple ? 'checkbox' : 'buttons'), 'multiple' => (bool) $multiple, 'operator' => $filter['operator'] ?? 'IN', 'includeChildren' => $filter['includeChildren'] ?? true, 'choices' => ($filter['choiceMode'] ?? '') === 'selected' ? ($filter['values'] ?? []) : [], ...(($filter['choiceMode'] ?? '') === 'selected' ? ['choiceMode' => 'selected'] : [])]);
	}
	if (!empty($attrs['dateFilter']['enabled'])) $make('date', $attrs['dateFilter']['label'] ?? __('Date', 'accomplice-query-loop-filters'), 'post:date', ['mode' => ($attrs['dateFilter']['mode'] ?? '') === 'fields' ? 'field' : 'publish', 'selection' => 'range']);
	if (!empty($attrs['sorting']['enabled'])) {
		$options = [];
		foreach ((array) ($attrs['sorting']['options'] ?? []) as $id) {
			if (!in_array($id, ['date-desc', 'date-asc', 'title-asc', 'title-desc'], true)) continue;
			[$column, $order] = explode('-', $id);
			$options[] = ['id' => $id, 'label' => $id, 'sourceId' => 'post:' . $column, 'order' => $order];
		}
		if (!empty($attrs['sorting']['customOptions'])) $attrs['_fqbpUnavailableConfiguration'] = true;
		$make('sort', $attrs['sorting']['label'] ?? __('Sort by', 'accomplice-query-loop-filters'), '', ['options' => $options]);
	}
	if (($attrs['search']['enabled'] ?? true) !== false) $make('search', $attrs['labels']['search'] ?? __('Search', 'accomplice-query-loop-filters'), '', ['columns' => $attrs['search']['columns'] ?? [], 'placeholder' => $attrs['search']['placeholder'] ?? '']);
	if (($attrs['behavior']['autoApply'] ?? true) === false) $make('apply', __('Apply filters', 'accomplice-query-loop-filters'));
	if (($attrs['display']['showReset'] ?? true) !== false) $make('reset', __('Reset', 'accomplice-query-loop-filters'));
	$block['attrs'] = array_merge($attrs, ['nativeVersion' => 1]);
	$block['innerBlocks'] = $children;
	$block['innerHTML'] = '';
	$block['innerContent'] = array_fill(0, count($children), null);
	return $block;
}