<?php

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

/**
 * PRC-1143 — konsolide şema: `workflow_edges` tablosunun TAM tanımı (tek dosya).
 */
return new class extends Migration
{
    public function up(): void
    {
        Schema::create('workflow_edges', function (Blueprint $t) {
            $t->id();
            $t->unsignedBigInteger('workflow_id');
            $t->unsignedBigInteger('from_node_id');
            $t->unsignedBigInteger('to_node_id');
            $t->enum('source_port', ['default','true','false'])->default('default');
            $t->timestamp('created_at')->nullable();
            $t->timestamp('updated_at')->nullable();
            $t->unique(['from_node_id', 'source_port'], 'workflow_edges_from_node_id_source_port_unique');
            $t->index('to_node_id', 'workflow_edges_to_node_id_foreign');
            $t->index('workflow_id', 'workflow_edges_workflow_id_index');
            $t->foreign('from_node_id', 'workflow_edges_from_node_id_foreign')->references('id')->on('workflow_nodes')->onDelete('cascade');
            $t->foreign('to_node_id', 'workflow_edges_to_node_id_foreign')->references('id')->on('workflow_nodes')->onDelete('cascade');
            $t->foreign('workflow_id', 'workflow_edges_workflow_id_foreign')->references('id')->on('workflows')->onDelete('cascade');
        });
    }

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