<?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(): void
    {
        Schema::create('mutations', function (Blueprint $table) {
            $table->id();
            $table->string('mutation_number')->unique();
            $table->foreignId('from_dealer_id')->constrained('dealers');
            $table->foreignId('to_dealer_id')->constrained('dealers');
            $table->enum('status', ['pending', 'sent', 'received', 'approved', 'rejected', 'completed', 'cancelled'])
                  ->default('sent');
            $table->foreignId('requested_by')->constrained('users');
            $table->foreignId('approved_by')->nullable()->constrained('users');
            $table->timestamp('approved_at')->nullable();
            $table->foreignId('received_by')->nullable()->constrained('users');
            $table->timestamp('received_at')->nullable();
            $table->text('notes')->nullable();
            $table->text('rejection_reason')->nullable();
            $table->timestamps();
            $table->softDeletes();

            // Indexes untuk performa
            $table->index(['from_dealer_id', 'status']);
            $table->index(['to_dealer_id', 'status']);
            $table->index(['status', 'created_at']);
            $table->index('mutation_number');
        });
    }

    /**
     * Reverse the migrations.
     */
    public function down(): void
    {
        Schema::dropIfExists('mutations');
    }
};