<?php

namespace app\common\service;

use app\common\model\Goods as GoodsModel;
use app\common\model\Order;
use app\common\model\GoodsExtend;
use app\common\model\CouponReceive as CouponReceiveModel;

/**
 * 支付计算服务类
 * 用于处理订单金额计算、支付方式与抵扣逻辑
 */
class PaymentCalculator
{
    /**
     * 计算订单金额
     * 
     * @param array $user 用户信息
     * @param int $goods_id 盒子ID
     * @param int $prize_num 抽奖数量
     * @param int $use_money_is 是否使用余额
     * @param int $use_integral_is 是否使用货币1
     * @param int $use_money2_is 是否使用货币2
     * @param int $coupon_id 优惠券ID
     * @param array $goods 盒子信息(可选,如不传则会从数据库获取)
     * @param array $goodsExtend 盒子扩展信息(可选,如不传则会从数据库获取)
     * @return array 计算结果数组
     */
    public function calculateOrderAmount($user, $goods_id, $prize_num, $use_money_is = 0, $use_integral_is = 0, $use_money2_is = 0, $coupon_id = 0, $goods = null, $goodsExtend = null)
    {
        // 如果未传入盒子信息，则从数据库获取
        if (!$goods) {
            $goods = GoodsModel::field('id,title,imgurl_detail,type,price,status,is_shou_zhe,quanju_xiangou,daily_xiangou,choujiang_xianzhi')
                ->where(['id' => $goods_id])
                ->find();

            if (!$goods) {
                return ['status' => 0, 'msg' => '盒子不存在'];
            }

            if ($goods['status'] != 1) {
                return ['status' => 0, 'msg' => '盒子已下架'];
            }
        }

        // 获取盒子类型
        $goods_type = $goods['type'];

        // 如果未传入扩展信息，则从数据库获取
        if (!$goodsExtend) {
            $goodsExtend = GoodsExtend::getGoodsExtendByGoodsId($goods_id, $goods_type);
            if (!$goodsExtend) {
                return ['status' => 0, 'msg' => '盒子类型配置不存在'];
            }
        }

        // 处理图片URL
        $goods['imgurl_detail'] = imageUrl($goods['imgurl_detail']);

        // 盒子单价
        $box_price = $goods['price'];

        // 首抽五折处理
        $shou_zhe_price = 0;
        if ($goods['type'] != 5 && $goods_type != 10 && $goods_type != 15) {
            $is_chou = Order::field('id')->where([['user_id', '=', $user['id']], ['status', '=', 1]])->find();
            $is_chou2 = Order::field('id')->where([['is_shou_zhe', '=', 1], ['status', '=', 1], ['user_id', '=', $user['id']]])->find();
            if (!$is_chou && !$is_chou2 && $goods['is_shou_zhe'] == 1) {
                $shou_zhe_price = bcmul("$box_price", "0.5", 2);
            }
        }

        // 计算总价
        $goods['shou_zhe_price'] = $shou_zhe_price;
        $price = bcmul("$box_price", "$prize_num", 2);
        $price = bcsub("$price", "$shou_zhe_price", 2);

        // 订单金额
        $order_total = $order_zhe_total = $price;

        // 初始化变量
        $coupon_price = 0;
        $use_money = 0;      // 余额抵扣
        $use_integral = 0;   // 货币1抵扣
        $use_money2 = 0;     // 货币2抵扣
        $zhe = 0;            // 会员折扣
        $daily_coupon_limit = \app\common\helper\ConfigHelper::getAppSettingKey("daily_coupon_limit");
        // 优惠券处理
        if ($shou_zhe_price <= 0 && !empty($coupon_id) && $goodsExtend['pay_coupon'] == 1) {
            //是否限制每日优惠券次数
            $is_daily_coupon = true;
            if ($daily_coupon_limit > 0) {
                $today_start = strtotime(date('Y-m-d 00:00:00', time()));
                $today_end = strtotime(date('Y-m-d 23:59:59', time()));
                $today_count = CouponReceiveModel::where('user_id', '=', $user['id'])
                    ->where('addtime', '>=', $today_start)
                    ->where('addtime', '<=', $today_end)
                    ->where('status', '=', 1)
                    ->count();
                if ($today_count >= $daily_coupon_limit) {
                    // return ['status' => 0, 'msg' => '今日优惠券次数已达上限'];
                    $is_daily_coupon = false;
                }
            }
            if ($is_daily_coupon) {
                // 获取优惠券信息
                $coupon = CouponReceiveModel::where([
                    'id' => $coupon_id,
                    'status' => 0,
                    'user_id' => $user['id']
                ])->where('man_price', '<=', $price)
                    ->where('end_time', '>', time()) // 确保优惠券未过期
                    ->find();

                if ($coupon) {
                    $coupon_price = $coupon['price'];
                } else {
                    $coupon_id = 0;
                }
            } else {
                $coupon_id = 0;
            }
        } else {
            $coupon_id = 0;
        }

        $price = bcsub("$price", "$coupon_price", 2);
        if ($price <= 0) {
            $price = 0;
        }
        $order_zhe_total = $price;

        // 如果不是首抽五折，处理各种支付抵扣
        if ($shou_zhe_price <= 0) {
            $iszhifu = 0;

            // 余额抵扣
            if ($use_money_is == 1 && $goodsExtend['pay_balance'] == 1) {
                if ($goodsExtend['is_deduction'] == 1) {
                    // 抵扣模式
                    if ($user['money'] >= $price) {
                        $use_money = $price;
                        $price = 0;
                    } else {
                        $use_money = $user['money'];
                        $price = bcsub("$price", "$use_money", 2);
                    }
                } else {
                    // 支付模式
                    if ($user['money'] >= $price) {
                        $use_money = $price;
                        $price = 0;
                        $iszhifu++;
                    } else {
                        // 支付模式下余额不足无法抵扣
                        $use_money = 0;
                        return ['status' => 0, 'msg' => '金额不足'];
                    }
                }
            }

            // 货币1抵扣
            if ($use_integral_is == 1 && $goodsExtend['pay_currency'] == 1) {
                $price_in_currency = $price * 100; // 1:100比例
                if ($goodsExtend['is_deduction'] == 1) {
                    // 抵扣模式
                    if ($user['integral'] >= $price_in_currency) {
                        $use_integral = $price_in_currency;
                        $price = 0;
                    } else {
                        $use_integral = $user['integral'];
                        $price = bcsub("$price", bcdiv("$use_integral", "100", 2), 2);
                    }
                } else {
                    // 支付模式
                    if ($user['integral'] >= $price_in_currency) {
                        $use_integral = $price_in_currency;
                        $price = 0;
                        $iszhifu++;
                    } else {
                        // 支付模式下货币不足无法抵扣
                        $use_integral = 0;
                        return ['status' => 0, 'msg' => '金额不足'];
                    }
                }
            }

            // 货币2抵扣
            if ($use_money2_is == 1 && $goodsExtend['pay_currency2'] == 1) {
                $price_in_currency2 = $price * 100; // 1:100比例
                if ($goodsExtend['is_deduction'] == 1) {
                    // 抵扣模式
                    if (isset($user['money2']) && $user['money2'] >= $price_in_currency2) {
                        $use_money2 = $price_in_currency2;
                        $price = 0;
                    } else if (isset($user['money2'])) {
                        $use_money2 = $user['money2'];
                        $price = bcsub("$price", bcdiv("$use_money2", "100", 2), 2);
                    }
                } else {
                    // 支付模式
                    if (isset($user['money2']) && $user['money2'] >= $price_in_currency2) {
                        $use_money2 = $price_in_currency2;
                        $price = 0;
                        $iszhifu++;
                    } else {
                        // 支付模式下货币2不足无法抵扣
                        $use_money2 = 0;
                        return ['status' => 0, 'msg' => '金额不足'];
                    }
                }
            }

            // 如果是支付模式但未选择任何支付方式
            if ($goodsExtend['is_deduction'] == 0 && $iszhifu == 0 && $goodsExtend['pay_wechat'] == 0) {
                return ['status' => 0, 'msg' => '请选择支付方式'];
            }
        }

        // 设置抽奖数量
        $goods['prize_num'] = $prize_num;

        // 组装返回数据
        $data = [
            'status' => 1,
            'goods' => $goods,
            'order_total' => round(floatval($order_total), 2),
            'order_zhe_total' => round($order_zhe_total, 2),
            'zhe' => round($zhe, 2),
            'price' => round($price, 2),
            'integral' => round($user['integral'], 2),
            'use_integral' => round($use_integral, 2),
            'use_integral_money' => round(round($use_integral, 2) / 100, 2),
            'money' => round($user['money'], 2),
            'use_money' => round($use_money, 2),
            'score' => isset($user['money2']) ? $user['money2'] : 0,
            'use_score' => $use_money2,
            'coupon_id' => $coupon_id,
            'coupon_price' => round($coupon_price, 2),
            'goods_extend' => $goodsExtend,
            'use_money2' => $use_money2,
            'daily_coupon_limit' => $daily_coupon_limit
        ];

        // 添加首抽五折状态
        $data['is_shou_zhe'] = $shou_zhe_price > 0 ? 1 : 0;

        return $data;
    }

    /**
     * 验证抽奖限制
     * 
     * @param array $user 用户信息
     * @param array $goods 盒子信息
     * @param int $prize_num 抽奖数量
     * @return array 验证结果 ['status' => 0/1, 'msg' => '提示信息']
     */
    public function validateDrawRestrictions($user, $goods, $prize_num)
    {
        // 验证抽奖门槛
        $user_id = $user['id'];
        $choujiang_xianzhi = $goods['choujiang_xianzhi'];

        if ($choujiang_xianzhi && $choujiang_xianzhi > 0) {
            // 验证福利屋活动
            if ($goods['type'] == 15) {
                // 获取用户在该福利屋活动期间的消费情况
                $consumptionData = \app\common\service\CommonService::getUserConsumptionByTimeRange(
                    $user_id,
                    $goods['flw_start_time'],
                    $goods['flw_end_time']
                );

                if ($consumptionData['total_consumed'] < $choujiang_xianzhi) {
                    return [
                        'status' => 0,
                        'msg' => "需在指定时间" . date('Y-m-d H:i:s', $goods['flw_start_time']) . "-"
                            . date('Y-m-d H:i:s', $goods['flw_end_time']) . "消耗达到" . $choujiang_xianzhi
                            . "钻石，即可加入房间，还需" . round(($choujiang_xianzhi - $consumptionData['total_consumed']), 2) . "钻石."
                    ];
                }
            } else {
                // 常规消费验证
                // $user_price = Order::where('user_id', '=', $user_id)->where('status', '=', 1)->sum('price');
                // $user_price = Order::where('user_id', '=', $user_id)->where('status', '=', 1)->sum('order_zhe_total');
                // if ($user_price < $choujiang_xianzhi) {
                //     if ($user['istest'] > 0) {
                //         $user_price = Order::where('user_id', '=', $user_id)->where('status', '=', 1)->sum('order_zhe_total');
                //     }

                //     if ($user_price < $choujiang_xianzhi) {
                //         return [
                //             'status' => 0,
                //             'msg' => "消费满" . $choujiang_xianzhi . "元可参与 已消费" . round($user_price, 2) . "元"
                //         ];
                //     }
                // }
            }
        }

        // 验证全局限购
        if ($goods['quanju_xiangou'] > 0) {
            $user_quanju_count = \app\common\model\OrderList::field('id')
                ->where('goods_id', '=', $goods['id'])
                ->where('user_id', '=', $user_id)
                ->where('parent_goods_list_id', '=', 0)
                ->count();

            if ($user_quanju_count >= $goods['quanju_xiangou']) {
                return ['status' => 0, 'msg' => '当前限购' . $goods['quanju_xiangou'] . '次'];
            }

            $now_prize_num = $prize_num + $user_quanju_count;
            if ($now_prize_num > $goods['quanju_xiangou']) {
                return [
                    'status' => 0,
                    'msg' => '购买超出限制,还允许购买' . ($goods['quanju_xiangou'] - $user_quanju_count) . '次'
                ];
            }
        }

        // 验证每日限购
        if ($goods['daily_xiangou'] > 0) {
            $todayMidnight = strtotime('today');
            $goods_id = $goods['id'];
            $user_toDay_count = \app\common\model\OrderList::field('id')
                ->where('goods_id', '=', $goods['id'])
                ->where('user_id', '=', $user_id)
                // ->where('parent_goods_list_id', '=', 0)
                ->where('addtime', '>=', $todayMidnight)
                ->count();

            if ($user_toDay_count >= $goods['daily_xiangou']) {
                return ['status' => 0, 'msg' => '今日限购' . $goods['daily_xiangou'] . '次'];
            }

            $now_prize_num = $prize_num + $user_toDay_count;
            if ($now_prize_num > $goods['daily_xiangou']) {
                return [
                    'status' => 0,
                    'msg' => '购买超出限制,今日还允许购买' . ($goods['daily_xiangou'] - $user_toDay_count) . '次'
                ];
            }
        }

        return ['status' => 1, 'msg' => '验证通过'];
    }
}