<?php

use Illuminate\Database\Migrations\Migration;
use Illuminate\Database\Schema\Blueprint;
use Illuminate\Support\Facades\Schema;

return new class extends Migration
{
    /**
     * Run the migrations.
     */
    public function up()
    {
        Schema::create('exams', function (Blueprint $table) {
            $table->id();
            $table->string('title');
            $table->text('description')->nullable();
            
            // Mengakomodasi 3 jenis training sesuai permintaan Anda
            $table->enum('training_type', ['matrix_plant', 'product', 'external']);
            
            // Relasi ke Materi/Subject (Satu ujian bisa mewakili satu materi SOP)
            $table->foreignId('subject_id')->constrained()->onDelete('cascade');
            
            // Aturan CBT
            $table->integer('duration_minutes')->default(60); // Durasi ujian
            $table->integer('passing_grade')->default(80);    // Nilai standar kelulusan
            $table->integer('max_retakes')->default(1);       // Kesempatan remedial (1 = bisa remedial 1x)
            $table->boolean('is_random_order')->default(true); // Opsi acak soal antar peserta
            $table->boolean('is_active')->default(true);
            
            $table->timestamps();
        });
    }

    public function down()
    {
        Schema::dropIfExists('exams');
    }
};