<?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('events', function (Blueprint $t) {
   $t->bigIncrements('id');
   $t->foreignId('device_id')->constrained('devices')->cascadeOnDelete();
   $t->enum('event_type',['burner_on','burner_off','error','warning','info','connection']);
   $t->enum('severity',['debug','info','warning','error','critical'])->default('info');
   $t->json('payload')->nullable();
   $t->timestamp('occurred_at',3);
   $t->index(['device_id','occurred_at'],'idx_dt');
   $t->index(['severity','occurred_at'],'idx_sev');
  });
 }
 public function down(): void { Schema::dropIfExists('events'); }
};