<?php

namespace App\Database\Migrations;

use CodeIgniter\Database\Migration;

class PreventDuplicateAppointmentSlots extends Migration
{
    public function up(): void
    {
        $db = \Config\Database::connect();

        $db->query(
            'ALTER TABLE `appointments` ADD UNIQUE KEY `appointments_doctor_slot_unique` (`doctor_id`, `appointment_date`, `appointment_time`)'
        );
    }

    public function down(): void
    {
        $db = \Config\Database::connect();

        $db->query('ALTER TABLE `appointments` DROP INDEX `appointments_doctor_slot_unique`');
    }
}