<?php

namespace App\Models;

use App\User;
use Carbon\Carbon;
use Illuminate\Database\Eloquent\Builder;
use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\BelongsTo;
use Illuminate\Database\Eloquent\SoftDeletes;

/**
 * Wiederverwendbare Angebots-Vorlage (Modul 6).
 *
 * Liefert Default-Texte + Default-Positionen für neue Angebote.
 * `default_items` ist ein JSON-Array von Positionen im Schema
 * [{title, description, type, price_per_unit, quantity}, …].
 *
 * @property int $id
 * @property int|null $branch_id
 * @property string $name
 * @property string|null $description
 * @property string|null $default_headline
 * @property string|null $default_intro
 * @property string|null $default_itinerary
 * @property string|null $default_closing
 * @property array|null $default_items
 * @property bool $is_active
 * @property int $created_by
 * @property Carbon $created_at
 * @property Carbon $updated_at
 * @property Carbon|null $deleted_at
 * @property-read Branch|null $branch
 * @property-read User $creator
 */
class OfferTemplate extends Model
{
    use HasFactory, SoftDeletes;

    protected $table = 'offer_templates';

    protected $fillable = [
        'branch_id',
        'name',
        'description',
        'default_headline',
        'default_intro',
        'default_itinerary',
        'default_closing',
        'default_items',
        'is_active',
        'created_by',
    ];

    protected $casts = [
        'branch_id'     => 'int',
        'default_items' => 'array',
        'is_active'     => 'bool',
        'created_by'    => 'int',
    ];

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

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

    public function scopeActive(Builder $q): Builder
    {
        return $q->where('is_active', true);
    }
}