<?php

namespace App\Database\Migrations;

use CodeIgniter\Database\Migration;

class UpdateAppointmentStatusEnum extends Migration
{
    public function up(): void
    {
        // Ensure enum values match the application status values.
        $this->forge->modifyColumn('appointments', [
            'status' => [
                'name'       => 'status',
                'type'       => 'ENUM',
                'constraint' => ['pending', 'approved', 'rejected'],
                'default'    => 'pending',
                'null'       => false,
            ],
        ]);

        // Convert legacy status values
        $db = \Config\Database::connect();
        $db->query("UPDATE `appointments` SET `status`='pending' WHERE `status` IS NULL OR `status`='' OR `status` NOT IN ('pending', 'approved', 'rejected')");
        $db->query("UPDATE `appointments` SET `status`='approved' WHERE `status`='confirmed'");
        $db->query("UPDATE `appointments` SET `status`='rejected' WHERE `status`='cancelled'");
    }

    public function down(): void
    {
        $this->forge->modifyColumn('appointments', [
            'status' => [
                'name'       => 'status',
                'type'       => 'ENUM',
                'constraint' => ['pending', 'confirmed', 'cancelled'],
                'default'    => 'pending',
                'null'       => false,
            ],
        ]);
    }
}