<?php
// database/migrations/2024_01_01_000003_create_documents_table.php
// Metadata dokumen utama — satu rekod per dokumen (bukan per versi)
// Setiap dokumen boleh ada banyak versi dalam document_versions

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

return new class extends Migration
{
    public function up(): void
    {
        Schema::create('documents', function (Blueprint $table) {
            $table->id();
            $table->foreignId('category_id')->constrained()->restrictOnDelete();
            $table->string('title');
            $table->text('description')->nullable();
            $table->string('status')->default('draft');
            // status: draft | processing | active | inactive | failed
            $table->boolean('is_active')->default(false);
            $table->date('effective_date')->nullable();  // tarikh kuat kuasa
            $table->date('expiry_date')->nullable();     // tarikh luput (optional)
            $table->json('tags')->nullable();            // ["lesen", "perniagaan"]
            $table->string('language', 10)->default('ms');
            $table->foreignId('created_by')->nullable()->constrained('users')->nullOnDelete();
            $table->foreignId('updated_by')->nullable()->constrained('users')->nullOnDelete();
            $table->timestamps();
            $table->softDeletes();

            $table->index(['category_id', 'is_active']);
            $table->index('status');
        });
    }

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