<?php
if ( ! defined( 'ABSPATH' ) ) exit;

use Evavel\Database\DB;

class SRR_DB_Whatsapp_Conversations extends DB
{
	public static $table_db = '';

	public static function init()
	{
		global $wpdb;
		self::$table_db = $wpdb->prefix.DB::$namespace.'_whatsapp_conversations';
	}

	public function __construct() {
		parent::__construct();
		$this->table_name = $this->prefix.'_whatsapp_conversations';
		$this->primary_key = 'id';
		$this->version     = '1.0';
	}

	public function sql_create()
	{
		return "CREATE TABLE {$this->table_name} (
			id bigint(20) NOT NULL AUTO_INCREMENT,
			restaurant_id bigint(20) NOT NULL,
			customer_id bigint(20) DEFAULT NULL,
			active_booking_id bigint(20) DEFAULT NULL,
			phone varchar(50) NOT NULL,
			phone_normalized varchar(20) NOT NULL,
			profile_name varchar(255) DEFAULT NULL,
			wa_id varchar(50) DEFAULT NULL,
			bsuid varchar(150) DEFAULT NULL,
			status varchar(20) DEFAULT 'open',
			customer_status varchar(30) DEFAULT 'IDLE',
			window_expires_at datetime DEFAULT NULL,
			last_message_at datetime DEFAULT NULL,
			last_inbound_at datetime DEFAULT NULL,
			last_outbound_at datetime DEFAULT NULL,
			unread_count int unsigned DEFAULT 0,
			message_count int unsigned DEFAULT 0,
			date_created datetime NOT NULL,
			date_modified datetime NOT NULL,
			PRIMARY KEY (id),
			KEY `wa_conv_restaurant_id_foreign` (`restaurant_id`),
			CONSTRAINT `wa_conv_restaurant_id_foreign` FOREIGN KEY (`restaurant_id`) REFERENCES `{$this->prefix}_restaurants` (`id`) ON DELETE CASCADE,
			KEY `wa_conv_customer_id_foreign` (`customer_id`),
			CONSTRAINT `wa_conv_customer_id_foreign` FOREIGN KEY (`customer_id`) REFERENCES `{$this->prefix}_customers` (`id`) ON DELETE CASCADE,
			KEY `wa_conv_phone_normalized` (`phone_normalized`),
			UNIQUE KEY `wa_conv_unique_phone` (`restaurant_id`, `phone_normalized`),
			KEY `wa_conv_bsuid` (`bsuid`),
			KEY `wa_conv_status` (`status`),
			KEY `wa_conv_customer_status` (`customer_status`),
			KEY `wa_conv_window_expires` (`window_expires_at`)
			)"; //" ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci";
	}

	public function sql_update_columns_releases()
	{
		//ray('ACTUALIZANDO LA TABLA de conversations');
		// No incremental migrations needed — table is always recreated from scratch via sql_create().

		global $wpdb;

		$col_exists = $wpdb->get_var("
			SELECT COLUMN_NAME FROM information_schema.COLUMNS
			WHERE TABLE_SCHEMA = DATABASE()
			  AND TABLE_NAME = '{$this->table_name}'
			  AND COLUMN_NAME = 'active_booking_id'
		");

		// Si no existe la columna es que es antigua tabla y hay que borrarla
		if ( ! $col_exists ) {
			//ray('BORRANDO LA TABLA de conversations');
			$wpdb->query("SET FOREIGN_KEY_CHECKS=0");
			$wpdb->query("DROP TABLE IF EXISTS {$this->table_name}");
			$wpdb->query("SET FOREIGN_KEY_CHECKS=1");
			$this->sql_create();
		}
	}
}

SRR_DB_Whatsapp_Conversations::init();