<?php

namespace App\Modules\Courses\Domain;

use App\Models\User;
use App\Modules\Assets\Domain\Asset;
use Illuminate\Database\Eloquent\Concerns\HasUlids;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\BelongsTo;
use Illuminate\Database\Eloquent\Relations\HasMany;
use Illuminate\Database\Eloquent\Relations\HasOne;

class Course extends Model
{
    use HasUlids;

    protected $fillable = ['organization_id', 'title', 'slug', 'status', 'cover_asset_id', 'created_by'];

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

    public function latestVersion(): HasOne
    {
        return $this->hasOne(CourseVersion::class)->ofMany('version_number', 'max');
    }

    public function creator(): BelongsTo
    {
        return $this->belongsTo(User::class, 'created_by');
    }

    public function coverAsset(): BelongsTo
    {
        return $this->belongsTo(Asset::class, 'cover_asset_id');
    }
}