<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\BelongsTo;
use Modules\SystemUser\Models\SysUserModel;

/**
 * 门店回筐记录模型（压筐=生成账单时自动写入并累加门店待回；回筐=门店退回手动登记并扣减待回）
 */
class ContainerReturnModel extends Model
{
    use HasFactory;

    /** 类型：压筐（账单生成压出，系统写入只读） */
    public const int TYPE_PRESS = 1;
    /** 类型：回筐（门店退回，后台手动登记） */
    public const int TYPE_RETURN = 2;

    /** 类型中文名 */
    public const array TYPE_NAMES = [
        self::TYPE_PRESS => '压筐',
        self::TYPE_RETURN => '回筐',
    ];

    protected $table = 'container_return';
    protected $primaryKey = 'id';

    protected $fillable = [
        'store_id',
        'bill_id',
        'type',
        'box_num',
        'tray_num',
        'return_date',
        'operator_id',
        'remark',
    ];

    protected $casts = [
        'store_id' => 'integer',
        'bill_id' => 'integer',
        'type' => 'integer',
        'box_num' => 'integer',
        'tray_num' => 'integer',
        'return_date' => 'date:Y-m-d',
        'operator_id' => 'integer',
        'created_at' => 'datetime:Y-m-d H:i:s',
    ];

    /**
     * 所属门店（含软删除门店，保证历史记录可见）
     */
    public function store(): BelongsTo
    {
        return $this->belongsTo(StoreModel::class, 'store_id', 'id')->withTrashed();
    }

    /**
     * 关联账单（压筐记录）
     */
    public function bill(): BelongsTo
    {
        return $this->belongsTo(BillModel::class, 'bill_id', 'id');
    }

    /**
     * 操作人（后台系统用户）
     */
    public function operator(): BelongsTo
    {
        return $this->belongsTo(SysUserModel::class, 'operator_id', 'id');
    }
}