<?php

namespace app\traits\account;

use app\exception\ApiRedirectException;
use app\exception\RepositoryException;
use app\model\Account;
use app\model\AccountCoupon;
use app\model\AccountRecord;
use app\model\Coupon;
use app\model\Express;
use app\repository\AccountRepository;
use think\Collection;
use think\db\exception\DataNotFoundException;
use think\db\exception\DbException;
use think\db\exception\ModelNotFoundException;
use think\Model;
use think\Paginator;

/**
 * 优惠券相关
 *
 * Trait CouponTrait
 * @package app\traits\order
 */
trait CouponTrait
{
    /**
     * 领取优惠券
     *
     * @param  int  $accountId
     * @param  int  $couponId
     * @return void
     * @throws DataNotFoundException
     * @throws DbException
     * @throws ModelNotFoundException
     * @throws RepositoryException
     * @throws ApiRedirectException
     */
    public function getCoupon(int $accountId, int $couponId)
    {

        if (!$coupon = Coupon::where('id', $couponId)->lock(true)->find()) {
            throw new RepositoryException('优惠券不存在或已下架');
        }

        if (!empty($coupon['deleted_at'])) {
            throw new RepositoryException('优惠券不存在或已下架');
        }

        if (!$account = Account::findById($accountId)) {
            throw new RepositoryException('请先登录');
        }

        if ($coupon['remain'] <= 0) {
            throw new RepositoryException('优惠券已领完');
        }

        if ($coupon['end_at'] <= date('Y-m-d H:i:s')) {
            throw new RepositoryException('优惠券已过期');
        }

        if (AccountCoupon::where('coupon_id', $couponId)->where('account_id', $accountId)->count() > 0) {
            throw new RepositoryException('您已领过此券');
        }

        if ($account['phone_active'] != Account::COMMON_ON) {
            throw new ApiRedirectException('请先完善账号资料');
        }

        AccountCoupon::create([
            'account_id' => $accountId,
            'coupon_id'  => $couponId,
            'status'     => AccountCoupon::STATUS_NORMAL,
            'is_taste'   => (int) ($coupon['type'] == Coupon::TYPE_TASTE),
            'created_at' => date('Y-m-d H:i:s'),
        ]);

        $coupon->inc('receive')->dec('remain')->update();
    }

    /**
     * 用户优惠券详情
     *
     * @param  int  $accountId
     * @param  int  $couponId
     */
    public function userCouponInfo(int $accountId, int $couponId)
    {
        return AccountCoupon::findOne(['account_id' => $accountId, 'coupon_id' => $couponId], [], function ($q) {
            return $q->with(["coupon"]);
        });
    }

    /**
     * 过期优惠券检测并处理
     *
     * @return bool
     */
    public function expireHandle(): bool
    {
        $expiredCouponList = Coupon::where('end_at', '<', date('Y-m-d H:i:s'))->column('id');
        if ($expiredCouponList) {
            AccountCoupon::whereIn('coupon_id', $expiredCouponList)
                ->where('status', self::STATUS_NORMAL)
                ->update(['status' => AccountCoupon::STATUS_INVALID]);
        }
        return true;
    }

    /**
     * 获取个人优惠券
     *
     * @param  array  $where
     * @param  int  $page
     * @param  int  $size  0 不限 获取全部
     * @return AccountCoupon[]|array
     */
    public function couponList(array $where, int $page = 1, int $size = 10): array
    {
        $this->expireHandle();

        $status    = $where['status'] ?? AccountCoupon::STATUS_NORMAL;
        $accountId = $where['account_id'] ?? 0;
        $condition = $where['condition'] ?? 0;

        $page = $page ?: 1;
        $size = $size ?: 10;

        $res = [
            'total'   => 0,
            'current' => $page,
            'size'    => $size,
            'list'    => new Collection(),
        ];

        $query        = AccountCoupon::alias('ac')
            ->leftJoin('coupon c', 'ac.coupon_id = c.id')
            ->where('ac.account_id', $accountId)
            ->where('ac.status', $status)
            ->where('c.condition', '<=', $condition);
        $res['total'] = $query->count();

        if ($res['total'] > 0) {
            $list        = $query->field('ac.id,ac.account_id,ac.created_at,ac.coupon_id,ac.status,c.amount,c.name,c.condition,c.begin_at,c.end_at')
                ->page($page, $size)
                ->order('created_at', 'desc')
                ->select();
            $res['list'] = $list;
        }

        return $res;

    }

    /**
     * 检测并处理过期优惠券
     *
     * @param  int  $accountId
     */
    public function checkExpire(int $accountId)
    {
        $accountCouponList = AccountCoupon::where('account_id', $accountId)
            ->where('status', AccountCoupon::STATUS_NORMAL)
            ->column('coupon_id');
        $expiredList       = Coupon::whereIn('id', $accountCouponList)
            ->where('end_at', '<=', date('Y-m-d H:i:s'))
            ->column('id');
        if (!empty($expiredList)) {
            AccountCoupon::where('account_id', $accountId)
                ->whereIn('coupon_id', $expiredList)
                ->save([
                    'status' => AccountCoupon::STATUS_INVALID,
                ]);
        }
    }

    /**
     * 创建一个体验券展示二维码
     *
     * @param  int  $accountId
     * @param  int  $couponId
     */
    public function createExperienceCouponQR($accountId, $couponId)
    {
        return md5($accountId.AccountCoupon::CODE_SALT.$couponId);
    }

    /**
     * 验证一个体验券展示二维码
     *
     * @param  int  $accountId
     * @param  int  $couponId
     * @param  string  $secret
     */
    public function checkExperienceCouponQR($accountId, $couponId, $secret)
    {
        return ($secret == md5($accountId.AccountCoupon::CODE_SALT.$couponId)) ? true : "秘钥核验失败";
    }


}