<?php

namespace App\Database\Migrations;

use CodeIgniter\Database\Migration;

class AddFaceExternalIdToStudentsTable extends Migration
{
    public function up()
    {
        // Add nullable face_external_id column for linking to external face-recognition ID
        $this->forge->addColumn('students', [
            'face_external_id' => [
                'type'       => 'VARCHAR',
                'constraint' => 100,
                'null'       => true,
                'after'      => 'dapodik_id',
            ],
        ]);

        // Unique index so one face ID hanya milik satu siswa
        $this->forge->addUniqueKey('face_external_id', 'students_face_external_id_unique');
    }

    public function down()
    {
        $this->forge->dropKey('students', 'students_face_external_id_unique');
        $this->forge->dropColumn('students', 'face_external_id');
    }
}

