<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\BelongsTo;

/**
 * 对账明细模型（订货量/称重/数量/金额可修改，diff = publish − actual）
 */
class ReconciliationItemModel extends Model
{
    /** 未对账 */
    public const NOT_RECONCILED = 0;
    /** 已对账 */
    public const RECONCILED = 1;

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

    protected $fillable = [
        'recon_id',
        'store_id',
        'purchase_item_id',
        'order_item_id',
        'product_id',
        'product_name',
        'quantity',
        'weight',
        'publish_amount',
        'actual_amount',
        'diff_amount',
        'is_reconciled',
        'store_remark',
        'sort',
    ];

    protected $casts = [
        'recon_id' => 'integer',
        'store_id' => 'integer',
        'purchase_item_id' => 'integer',
        'order_item_id' => 'integer',
        'product_id' => 'integer',
        'quantity' => 'decimal:2',
        'weight' => 'decimal:3',
        'publish_amount' => 'decimal:2',
        'actual_amount' => 'decimal:2',
        'diff_amount' => 'decimal:2',
        'is_reconciled' => 'integer',
        'sort' => 'integer',
    ];

    /**
     * 所属对账单
     */
    public function recon(): BelongsTo
    {
        return $this->belongsTo(ReconciliationModel::class, 'recon_id', 'id');
    }

    /**
     * 所属门店
     */
    public function store(): BelongsTo
    {
        return $this->belongsTo(StoreModel::class, 'store_id', 'id');
    }

    /**
     * 对账商品
     */
    public function product(): BelongsTo
    {
        return $this->belongsTo(ProductModel::class, 'product_id', 'id');
    }

    /**
     * 来源采购明细
     */
    public function purchaseItem(): BelongsTo
    {
        return $this->belongsTo(PurchaseOrderItemModel::class, 'purchase_item_id', 'id');
    }

    /**
     * 溯源订货明细
     */
    public function orderItem(): BelongsTo
    {
        return $this->belongsTo(StoreOrderItemModel::class, 'order_item_id', 'id');
    }
}