<?php

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('submissions', function (Blueprint $table) {
            $table->id();
            $table->foreignId('data_centre_id')->constrained('data_centres')->cascadeOnDelete();
            $table->foreignId('reporting_cycle_id')->constrained('reporting_cycles')->cascadeOnDelete();
            $table->foreignId('consultant_id')->constrained('consultants')->cascadeOnDelete();
            $table->foreignId('checklist_template_id')->nullable()->constrained('checklist_templates')->nullOnDelete();

            // draf, baru, dalam_tindakan, pembetulan_perunding, selesai
            $table->string('status')->default('draf');

            $table->boolean('is_locked')->default(false);
            $table->foreignId('locked_by')->nullable()->constrained('users')->nullOnDelete();
            $table->timestamp('locked_at')->nullable();
            $table->text('lock_reason')->nullable();

            $table->foreignId('assigned_officer_id')->nullable()->constrained('users')->nullOnDelete();

            $table->boolean('hardcopy_received')->default(false);
            $table->date('hardcopy_received_date')->nullable();
            $table->date('hardcopy_sent_date')->nullable()->comment('Tarikh hardcopy dihantar ke Bahagian Kawalan Perancangan');

            $table->timestamp('submitted_at')->nullable();
            $table->foreignId('submitted_by')->nullable()->constrained('users')->nullOnDelete();

            $table->text('review_notes')->nullable();

            $table->timestamps();
            $table->softDeletes();

            $table->unique(['data_centre_id', 'reporting_cycle_id'], 'submissions_dc_cycle_unique');
            $table->index('status');
            $table->index('consultant_id');
            $table->index('reporting_cycle_id');
            $table->index('assigned_officer_id');
        });
    }

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