<?php

namespace App\Models;

use App\Casts\JsonArray;
use App\Casts\Price;
use Dcat\Admin\Traits\HasDateTimeFormatter;
use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Support\Str;

class AfterSale extends Model
{
    use HasFactory;
    use HasDateTimeFormatter;

    public const STATE_APPLY = 1;    // 待补充资料
    public const STATE_VERIFY = 2;   // 待审核
    public const STATE_AGREE = 3;    // 待同意
    public const STATE_SHIPPING = 4; // 待收货
    public const STATE_FINANCE = 5;  // 待打款
    public const STATE_FINISH = 6;   // 完成
    public const STATE_CANCEL = 7;   // 取消

    public const TYPE_REFUND_AND_RETURN = 1;   // 退款退货
    public const TYPE_REFUND = 2;             // 退款不退货
    public const TYPE_CHANGE = 3;             // 换货
    public const TYPE_FILL = 4;               // 漏发

    protected $casts = [
        'images' => JsonArray::class,
        // 'amount' => Price::class,
    ];

    protected $fillable = [
        'user_id',
        'order_id',
        'order_product_id',
        'num',
        'amount',
        'type',
        'state',
        'description',
        'images',
        'remarks',
        'tracking_number',
    ];

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

    public function order()
    {
        return $this->belongsTo(Order::class, 'order_id');
    }

    public function orderProduct()
    {
        return $this->belongsTo(OrderProduct::class, 'order_product_id');
    }

    public function logs()
    {
        return $this->hasMany(AfterSaleLog::class, 'after_sale_id');
    }

    /**
     * 设置申请售后时的录入操作日志
     *
     * @param array $attributes
     * @param self|null $inviter
     * @return self
     */
    public static function create(array $attributes = [], ?self $inviter = null): self
    {
        $afterSale = static::query()->create($attributes);

        $afterSale->createApplyLog();

        return $afterSale;
    }

    /**
     * 申请日志
     *
     * @return void
     */
    protected function createApplyLog()
    {
        $this->logs()->create([
            'after_sale_id' => $this->id,
            'name'  => '售后申请',
            'desc'  => '申请理由：'.$this->description,
            'images'=> $this->images,
        ]);
    }

    /**
     * 取消售后订单日志
     *
     * @return void
     */
    protected function createCancelLog()
    {
        $this->logs()->create([
            'after_sale_id' => $this->id,
            'name'  => '取消申请',
            'desc'  => '用户取消售后申请',
        ]);
    }

    /**
     * 完成售后订单日志
     *
     * @return void
     */
    protected function createFinishLog()
    {
        $this->logs()->create([
            'after_sale_id' => $this->id,
            'name'  => '售后完成',
            'desc'  => '售后已结束',
        ]);
    }

    /**
     * {@inheritdoc}
     */
    protected static function booted()
    {
        parent::saving(function ($afterSale) {
            // 如果自动创建sn
            if ($afterSale->sn === null) {
                $afterSale->sn = self::createSn();
            }
            //如果取消订单
            if ($afterSale->state == self::STATE_CANCEL) {
                $afterSale->createCancelLog();
            }
            //如果完成订单
            if ($afterSale->state == self::STATE_FINISH) {
                $afterSale->createFinishLog();
            }
        });
    }

    /**
     * 创建售后单号
     *
     * @return void
     */
    protected static function createSn()
    {
        $rand = strtoupper(Str::random(6));

        return 'AS'.date('ymdHis').$rand;
    }
}