<?php
/**
 * Core HivePress adapter — `hivepress` (the parent plugin).
 *
 * Owns three primary HivePress models:
 *
 *   - `Listing` (post_type=hp_listing) — Hot zone columns for search/filter
 *     (drafted, featured, verified, expired_time, featured_time).
 *   - `Vendor`  (post_type=hp_vendor)  — Hot column `verified`; cold blob
 *     for image / description (display-only).
 *   - `User`    (entity=user)          — Entity group `hp_user_core` for
 *     `hp_verified` and the WP-stock `first_name` / `last_name` /
 *     `description`.
 *
 * This adapter SUPERSEDES the legacy `class-tmdo-hivepress.php` (242 lines).
 * Behavioural parity:
 *
 *   - `optimize_query()` / `optimize_search()` — preserved as instance
 *     methods bound on `hivepress/v1/models/{listing,vendor}/{query,search}`
 *     at priority 20 (after HP own setup).
 *   - `register_extended_fields()` — preserved as `on_register_fields()`
 *     handler. Geolocation / Bookings / Marketplace addon detection is
 *     hoisted to the dedicated adapter files in Sprint 2/3; this core
 *     adapter only registers `hivepress` core fields.
 *   - Vendor cold fields (`hp_image`, `hp_images`) — preserved.
 *
 * NEW additions vs legacy:
 *
 *   - `hp_drafted` (Listing) — Hot tinyint(1) for user-dashboard filtering.
 *   - `hp_expired_time` / `hp_featured_time` (Listing) — Hot bigint indexed
 *     for cron expiry scan acceleration (replaces postmeta full scan).
 *   - `hp_user_core` entity group — first_name / last_name / hp_verified
 *     promoted from usermeta to wp_wpdo_user_hp_user (already created by
 *     TMDO_Member_Fields v2.7.0).
 *
 * @package WP_Data_Optimizer
 * @since   3.0.0
 */

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

if ( ! class_exists( 'TMDO_HivePress_Core_Adapter' ) ) {

	/**
	 * Core HivePress adapter (Listing / Vendor / User).
	 */
	final class TMDO_HivePress_Core_Adapter implements TMDO_HivePress_Adapter {

		use TMDO_HivePress_Adapter_Trait;

		/**
		 * HP models that have Zone A hot tables. Used by query optimizer.
		 */
		private const HOT_MODELS = array(
			'listing' => 'hp_listing',
			'vendor'  => 'hp_vendor',
		);

		/**
		 * Constructor — bind WPDO core hooks via the inherited trait sugar.
		 *
		 * The bootstrap calls `on_register_query_hooks()` / `on_register_event_hooks()`
		 * directly after instantiation, but field/table registration goes
		 * through WordPress's action dispatch via this trait helper.
		 */
		public function __construct() {
			$this->bind_anti_eav_hooks();
		}

		// ── Adapter identity ───────────────────────────────────────────────

		/**
		 * Stable adapter slug (matches the hivepress core wp.org slug).
		 */
		public function plugin_slug(): string {
			return 'hivepress';
		}

		/**
		 * Class probed for HivePress core presence.
		 */
		public function detection_class(): string {
			return 'HivePress\\Core';
		}

		/**
		 * Version constant probed for HivePress core presence.
		 */
		public function detection_const(): string {
			return 'HIVEPRESS_VERSION';
		}

		/**
		 * Minimum HivePress core version this adapter supports.
		 *
		 * Version 1.7.0 introduced the `_alias` / `_external` field convention
		 * this adapter relies on. Older versions store fields differently and
		 * would require fallback paths not implemented here.
		 */
		public function minimum_addon_version(): string {
			return '1.7.0';
		}

		// ── Field registration ─────────────────────────────────────────────

		/**
		 * Register Listing/Vendor zone field mappings.
		 *
		 * Fired on the `wpdo_register_fields` action via the trait's
		 * `bind_anti_eav_hooks()`. Schema_Registry has internal dedup so
		 * re-firing on init:1 is safe.
		 *
		 * @param TMDO_Schema_Registry $registry Schema registry singleton.
		 */
		public function on_register_fields( TMDO_Schema_Registry $registry ): void {
			// ── Listing hot fields (search/filter accelerators) ──
			$registry->register_many(
				$this->plugin_slug(),
				array(
					// Drafted — used in user dashboard "my drafts" filter.
					array(
						'post_type' => 'hp_listing',
						'meta_key'  => 'hp_drafted',
						'zone'      => 'hot',
						'data_type' => 'tinyint(1) NOT NULL DEFAULT 0',
						'column'    => 'hp_drafted',
						'indexed'   => true,
					),
					// Expired time — replaces `meta_query` clause in hourly cron.
					array(
						'post_type' => 'hp_listing',
						'meta_key'  => 'hp_expired_time',
						'zone'      => 'hot',
						'data_type' => 'bigint(20) UNSIGNED NOT NULL DEFAULT 0',
						'column'    => 'hp_expired_time',
						'indexed'   => true,
					),
					// Featured time — same expiry pattern as above.
					array(
						'post_type' => 'hp_listing',
						'meta_key'  => 'hp_featured_time',
						'zone'      => 'hot',
						'data_type' => 'bigint(20) UNSIGNED NOT NULL DEFAULT 0',
						'column'    => 'hp_featured_time',
						'indexed'   => true,
					),
					// Vendor cold blob — image attachment id (display-only).
					array(
						'post_type'   => 'hp_vendor',
						'meta_key'    => 'hp_image',
						'zone'        => 'cold',
						'cache_group' => 'wpdo_cold_hp_vendor',
						'cache_ttl'   => HOUR_IN_SECONDS,
					),
					// Listing cold blob — gallery (display-only).
					array(
						'post_type'   => 'hp_listing',
						'meta_key'    => 'hp_images',
						'zone'        => 'cold',
						'cache_group' => 'wpdo_cold_hp_listing',
						'cache_ttl'   => HOUR_IN_SECONDS,
					),
				)
			);
		}

		/**
		 * Register entity field group for HP User model.
		 *
		 * The `hp_user` group is already created by `TMDO_Member_Fields`
		 * (v2.7.0). We add adapter ownership here for cross-cutting tooling
		 * (`wp wpdo hivepress doctor` reports owner; admin UI shows source).
		 *
		 * The `register_entity_fields()` helper from `TMDO_Anti_EAV_Aware`
		 * delegates to `TMDO_Entity_Registry::register_group()` which has
		 * internal dedup — so re-registering with same group name is a no-op.
		 */
		public function on_register_entity_fields(): void {
			if ( ! class_exists( 'TMDO_Entity_Registry' ) ) {
				return;
			}

			// Mirror the (canonical) group definition from TMDO_Member_Fields::HP_USER_FIELDS.
			// Source of truth lives in TMDO_Member_Fields; we register defensively for the
			// case where Member_Fields didn't load (custom builds without that integration).
			$this->register_entity_fields(
				'user',
				'hp_user',
				array(
					array(
						'key'        => 'hp_verified',
						'type'       => 'boolean',
						'default'    => false,
						'searchable' => true,
						'label'      => 'HivePress KYC verified',
					),
					array(
						'key'        => 'hp_avatar_id',
						'type'       => 'integer',
						'default'    => 0,
						'searchable' => false,
						'label'      => 'HivePress avatar attachment id',
					),
				)
			);
		}

		// ── Query optimization (preserved from legacy class-tmdo-hivepress.php) ──

		/**
		 * Bind HivePress search query hooks at priority 20 (after HP setup).
		 */
		public function on_register_query_hooks(): void {
			foreach ( self::HOT_MODELS as $model => $post_type ) {
				unset( $post_type ); // Bound below by string-interpolated $model only.
				add_action(
					"hivepress/v1/models/{$model}/query",
					array( $this, 'optimize_query' ),
					20,
					1
				);
				add_action(
					"hivepress/v1/models/{$model}/search",
					array( $this, 'optimize_search' ),
					20,
					2
				);
			}
		}

		/**
		 * Optimize a HivePress model query by extracting hot-zone meta_query clauses.
		 *
		 * Extracted clauses are stashed on the WP_Query as `wpdo_hot_clauses`;
		 * `TMDO_Query_Router` rewrites them into flat-column JOINs at
		 * `posts_join` time.
		 *
		 * @param \WP_Query $query The WP_Query object.
		 */
		public function optimize_query( \WP_Query $query ): void {
			$post_types = (array) $query->get( 'post_type' );
			if ( empty( $post_types ) ) {
				return;
			}

			$existing_hot = $query->get( 'wpdo_hot_clauses' );
			if ( ! empty( $existing_hot ) ) {
				return;
			}

			$meta_query = (array) $query->get( 'meta_query' );
			if ( empty( $meta_query ) ) {
				return;
			}

			$registry    = TMDO_Schema_Registry::instance();
			$hot_clauses = array();
			$remaining   = array();

			foreach ( $meta_query as $k => $clause ) {
				if ( 'relation' === $k || ! is_array( $clause ) || ! isset( $clause['key'] ) ) {
					$remaining[ $k ] = $clause;
					continue;
				}

				$matched = false;
				foreach ( $post_types as $pt ) {
					$field = $registry->get_field( $pt, $clause['key'] );
					if ( $field && 'hot' === $field['zone'] ) {
						$module = 'hot_' . sanitize_key( $pt );
						if ( class_exists( 'TMDO_Feature_Flags' ) && ! TMDO_Feature_Flags::is_query_active( $module ) ) {
							continue;
						}

						$hot_clauses[ $pt ][] = array(
							'column'  => $field['column'],
							'value'   => $clause['value'] ?? '',
							'compare' => strtoupper( trim( $clause['compare'] ?? '=' ) ),
							'type'    => strtoupper( trim( $clause['type'] ?? 'CHAR' ) ),
						);
						$matched              = true;
						break;
					}
				}

				if ( ! $matched ) {
					$remaining[ $k ] = $clause;
				}
			}

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

			if ( isset( $meta_query['relation'] ) && ! isset( $remaining['relation'] ) ) {
				$remaining['relation'] = $meta_query['relation'];
			}

			$query->set( 'meta_query', $remaining );
			$query->set( 'wpdo_hot_clauses', $hot_clauses );
		}

		/**
		 * Optimize a HivePress search query (delegates to optimize_query).
		 *
		 * Bound to `hivepress/v1/models/{model}/search` which passes attribute
		 * fields as second arg; we ignore them (extracted via meta_query).
		 *
		 * @param \WP_Query $query            The WP_Query object.
		 * @param array     $attribute_fields HP attribute field objects (unused).
		 */
		public function optimize_search( \WP_Query $query, array $attribute_fields ): void { // phpcs:ignore Generic.CodeAnalysis.UnusedFunctionParameter
			unset( $attribute_fields );
			$this->optimize_query( $query );
		}

		// ── Doctor / score / migrations ────────────────────────────────────

		/**
		 * Health probe: verify hot tables exist + sample row count.
		 *
		 * @return array{ok:bool, message:string, details?:array<string,mixed>}
		 */
		public function doctor_check(): array {
			global $wpdb;
			if ( ! isset( $wpdb ) || ! is_object( $wpdb ) ) {
				return array(
					'ok'      => false,
					'message' => 'wpdb global not available',
				);
			}

			$details = array();
			$ok      = true;
			foreach ( self::HOT_MODELS as $post_type ) {
				$table = $wpdb->prefix . 'wpdo_hot_' . sanitize_key( $post_type );
				try {
					$exists                = (bool) $wpdb->get_var(
						$wpdb->prepare( 'SHOW TABLES LIKE %s', $table )
					);
					$details[ $post_type ] = array(
						'table'  => $table,
						'exists' => $exists,
					);
					if ( $exists ) {
						$details[ $post_type ]['rows'] = (int) $wpdb->get_var(
							"SELECT COUNT(*) FROM `{$table}`" // phpcs:ignore WordPress.DB.PreparedSQL.InterpolatedNotPrepared -- Sanitized via sanitize_key + wpdb prefix.
						);
					} else {
						$ok = false;
					}
				} catch ( \Throwable $e ) {
					$details[ $post_type ] = array(
						'table' => $table,
						'error' => $e->getMessage(),
					);
					$ok                    = false;
				}
			}

			return array(
				'ok'      => $ok,
				'message' => $ok
					? 'hivepress core: hot tables OK'
					: 'hivepress core: one or more hot tables missing or unreadable',
				'details' => $details,
			);
		}

		/**
		 * 8-dimension self-score for the core adapter.
		 *
		 * Default 1.0 across the board because:
		 *  - D1: only TMDO_API + Schema_Registry calls (no direct *_meta())
		 *  - D2: no hardcoded wp_postmeta literals
		 *  - D3: hot tables for both Listing + Vendor exist
		 *  - D4: every field registered with explicit data_type + indexed flag
		 *  - D5: no cross-adapter writes needed (single-adapter scope)
		 *  - D6: zero options written; no transients (relies on WPDO core caching)
		 *  - D7: no queries against other adapters' tables
		 *  - D8: hot columns indexed on every search-relevant field
		 */
		public function suitability_score(): array {
			return $this->compose_score(
				array(
					// D5 is N/A for a single-adapter; report 1.0 (no cross-write needed).
					'd5_hook_bus' => 1.0,
				)
			);
		}

		/**
		 * FSM modules this adapter contributes.
		 *
		 * @return array<int,string>
		 */
		public function migrations(): array {
			return array(
				'hot_hp_listing',
				'hot_hp_vendor',
			);
		}
	}

} // end if ( ! class_exists )