hado/core/app/Models/Event.php

<?php

namespace App\Models;

use App\Enums\AfterDue;
use App\Enums\DueMode;
use App\Enums\EventState;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\BelongsTo;
use Illuminate\Database\Eloquent\Relations\HasMany;

class Event extends Model
{
    protected $guarded = [];

    protected function casts(): array
    {
        return [
            'due_mode' => DueMode::class,
            'after_due' => AfterDue::class,
            'state' => EventState::class,
            'due_date' => 'immutable_date',
            'fire_on' => 'immutable_date',
            'due_instant' => 'immutable_datetime',
            'quiet_until' => 'immutable_datetime',
            'done_at' => 'immutable_datetime',
            'payload' => 'array',
        ];
    }

    public function source(): BelongsTo
    {
        return $this->belongsTo(Source::class);
    }

    public function user(): BelongsTo
    {
        return $this->belongsTo(User::class);
    }

    public function deliveries(): HasMany
    {
        return $this->hasMany(Delivery::class);
    }

    public function isTerminal(): bool
    {
        return $this->state->isTerminal();
    }
}