package services

import (
	"PaymentCenter/app/constants/common"
	"PaymentCenter/app/constants/errorcode"
	"PaymentCenter/app/http/entities"
	"PaymentCenter/app/http/entities/backend"
	"PaymentCenter/app/http/entities/front"
	"PaymentCenter/app/models/ordersmodel"
	"PaymentCenter/app/models/paychannelmodel"
	"PaymentCenter/app/utils"
	"strconv"
	"time"
	"xorm.io/builder"
)

// 收银台支付渠道列表
func PayPageChannelList(reqParam front.PayChannelListRequest) (resultPayChannelList []paychannelmodel.PayChannel, code int) {

	orderId, err := strconv.ParseInt(reqParam.OrderId, 10, 64)
	if err != nil {
		code = errorcode.ParamError
		return
	}

	// 订单检查
	orderInfo := &ordersmodel.Orders{Id: orderId}
	orderInfo, code = OrderFindOne(orderInfo, builder.Eq{"id": orderId})
	if code != errorcode.Success {
		return
	}
	if !(orderInfo.Status == common.ORDER_STATUS_PAYING || orderInfo.Status == common.ORDER_STATUS_WAITPAY) {
		code = errorcode.OrderStatusErr
		return
	}

	// 商户拥有的支付渠道检查
	req := backend.PayChannelListRequest{
		MerchantId:  orderInfo.MerchantId,
		PageRequest: entities.PageRequest{},
	}
	payList := make([]paychannelmodel.PayChannel, 0)
	payList, _, code = PayChannelList(req)
	if code != errorcode.Success {
		return
	}
	if len(payList) == 0 {
		code = errorcode.PayChannelNotFound
		return
	}
	merchantPayChannelMap := make(map[int]paychannelmodel.PayChannel, 0)
	for _, pay := range payList {
		if !pay.ExpireTime.IsZero() && pay.ExpireTime.Unix() < time.Now().Unix() {
			continue
		}
		merchantPayChannelMap[pay.ChannelType] = pay
	}

	// 客户端环境检查
	openType := ClientEnvCheck(reqParam.UserAgent)
	if channels, ok := common.OpenInPayChannelMap[openType]; !ok {
		code = errorcode.ClientEnvErr
		return
	} else {
		for _, channel := range channels {
			if _, ok = merchantPayChannelMap[channel]; ok {
				resultPayChannelList = append(resultPayChannelList, merchantPayChannelMap[channel])
			}
		}
	}

	return resultPayChannelList, code
}

// 客户端环境检查
func ClientEnvCheck(ua string) int {
	if utils.IsWeChatClient(ua) {
		return common.OpenInWeChat
	} else if utils.IsPC(ua) {
		return common.OpenInWindows
	} else if utils.IsMobile(ua) {
		return common.OpenInMobile
	}

	return common.OpenInUnknown
}

// 订单状态检查是否是支付状态
func OrderStatusCheck(order ordersmodel.Orders) (code int) {
	switch order.Status {
	case common.ORDER_STATUS_CLOSE:
		code = errorcode.OrderClosed
	case common.ORDER_STATUS_PAYED:
		code = errorcode.OrderPayed
	case common.ORDER_STATUS_FAILED:
		code = errorcode.OrderFailed
	case common.ORDER_STATUS_WAITPAY, common.ORDER_STATUS_PAYING:
		code = errorcode.Success
	default:
		code = errorcode.OrderStatusErr
	}
	return code
}