<?php
/**
 * Memberships adapter — `hivepress-memberships`.
 *
 * Two post-type models:
 *
 *   - Membership_Plan (post_type=hp_membership_plan)
 *       hot fields: hp_expire_period (int), hp_primary (bool)
 *
 *   - Membership      (post_type=hp_membership)
 *       hot fields: hp_expired_time (unix ts) — checked on every page load
 *
 * Both fields registered to Hot zone so:
 *   - `hp_expired_time < NOW()` lookups become indexed range scans
 *     (replaces O(N) postmeta scan on each request).
 *   - `hp_primary = 1` lookups for "default plan" become O(1).
 *
 * Tables `wp_wpdo_hot_hp_membership_plan` and `wp_wpdo_hot_hp_membership`
 * are created by `TMDO_Schema_Manager` from the registered hot columns.
 *
 * @package WP_Data_Optimizer
 * @since   3.0.0
 */

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

if ( ! class_exists( 'TMDO_HivePress_Memberships_Adapter' ) ) {

	/**
	 * Memberships addon adapter.
	 */
	final class TMDO_HivePress_Memberships_Adapter implements TMDO_HivePress_Adapter {

		use TMDO_HivePress_Adapter_Trait;

		/**
		 * Constructor — bind register hooks via inherited trait.
		 */
		public function __construct() {
			$this->bind_anti_eav_hooks();
		}

		/** Adapter slug (matches wp.org plugin slug). */
		public function plugin_slug(): string {
			return 'hivepress-memberships';
		}

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

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

		/** Minimum addon version supported. */
		public function minimum_addon_version(): string {
			return '2.0.0';
		}

		/**
		 * Register hot fields for both post types.
		 *
		 * @param TMDO_Schema_Registry $registry Schema registry singleton.
		 */
		public function on_register_fields( TMDO_Schema_Registry $registry ): void {
			$registry->register_many(
				$this->plugin_slug(),
				array(
					// Plan fields.
					array(
						'post_type' => 'hp_membership_plan',
						'meta_key'  => 'hp_expire_period',
						'zone'      => 'hot',
						'data_type' => 'int(11) NOT NULL DEFAULT 0',
						'column'    => 'hp_expire_period',
						'indexed'   => false,
					),
					array(
						'post_type' => 'hp_membership_plan',
						'meta_key'  => 'hp_primary',
						'zone'      => 'hot',
						'data_type' => 'tinyint(1) NOT NULL DEFAULT 0',
						'column'    => 'hp_primary',
						'indexed'   => true,
					),
					// Membership (subscription) field — hottest path: every page load.
					array(
						'post_type' => 'hp_membership',
						'meta_key'  => 'hp_expired_time',
						'zone'      => 'hot',
						'data_type' => 'bigint(20) UNSIGNED NOT NULL DEFAULT 0',
						'column'    => 'hp_expired_time',
						'indexed'   => true,
					),
				)
			);
		}

		/**
		 * Doctor probe — verify both hot tables.
		 *
		 * @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 ( array( 'hp_membership_plan', 'hp_membership' ) as $pt ) {
				$table = $wpdb->prefix . 'wpdo_hot_' . sanitize_key( $pt );
				try {
					$exists                   = (bool) $wpdb->get_var( $wpdb->prepare( 'SHOW TABLES LIKE %s', $table ) );
					$details[ $pt ]['table']  = $table;
					$details[ $pt ]['exists'] = $exists;
					if ( ! $exists ) {
						$ok = false;
					}
				} catch ( \Throwable $e ) {
					$details[ $pt ]['error'] = $e->getMessage();
					$ok                      = false;
				}
			}
			return array(
				'ok'      => $ok,
				'message' => $ok ? 'hivepress-memberships: hot tables OK' : 'hivepress-memberships: hot tables missing',
				'details' => $details,
			);
		}

		/**
		 * 8-D self-score.
		 *
		 *  D1: 1.0 — adapter never calls *_meta()
		 *  D2: 1.0 — uses wpdb prefix
		 *  D3: 1.0 — both models have hot tables
		 *  D4: 1.0 — every field has explicit data_type + indexed flag
		 *  D5: 1.0 — single-adapter scope
		 *  D6: 1.0 — zero options/transients
		 *  D7: 1.0 — only registers fields, no cross-table queries
		 *  D8: 1.0 — hot column on hp_expired_time = indexed range scan
		 */
		public function suitability_score(): array {
			return $this->compose_score( array() );
		}

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

} // end if ( ! class_exists )