package eanipay

import (
	"encoding/json"
	"errors"
	"fmt"
	"net/http"
	"server/common"
	"server/modules/pay/base"
	"server/modules/pay/values"
	"server/pb"
	"server/util"
	"time"

	"github.com/gogo/protobuf/proto"
	"github.com/liangdas/mqant/log"
)

func NewSub(b *base.Base) {
	sub := &Sub{
		Base: b,
	}
	b.HttpType = base.HttpTypeJson
	b.ShouldSignUpper = true
	if b.Opt == base.OPTPay {
		b.Resp = new(PayResp)
		b.ReqURL = baseURL + payURL
	} else if b.Opt == base.OPTWithdraw {
		b.Resp = new(WithdrawResp)
		b.ReqURL = baseURL + withdrawURL
	} else if b.Opt == base.OPTPayCB {
		b.CallbackReq = new(PayCallbackReq)
		b.CallbackResp.Msg = "success"
	} else if b.Opt == base.OPTWithdrawCB {
		b.CallbackReq = new(WithdrawCallbackReq)
		b.CallbackResp.Msg = "success"
	} else if b.Opt == base.OPTQueryWithdraw { // 查询
		b.Resp = new(QueryWithdrawResp)
		b.ReqURL = baseURL + queryWithdrawURL
	} else if b.Opt == base.OPTQueryPay { // 查询
		b.Resp = new(QueryPayResp)
		b.ReqURL = baseURL + queryPayURL
	} else {
		return
	}
	b.Sub = sub
}

type Sub struct {
	Base *base.Base
}

func (s *Sub) PackHeader(header http.Header) {
	header.Set("Accept", "application/json")
	url := baseURL
	if s.Base.Opt == base.OPTPay {
		url += payURL
	} else if s.Base.Opt == base.OPTWithdraw {
		url += withdrawURL
	} else if s.Base.Opt == base.OPTQueryWithdraw {
		url += queryWithdrawURL
	} else if s.Base.Opt == base.OPTQueryPay {
		url += queryPayURL
	}
	randomStr := util.GetSimpleRandomString(10)
	bodyStr, _ := json.Marshal(s.Base.ReqData)
	now := time.Now().UnixMilli()
	sign := Sign(string(bodyStr), fmt.Sprintf("%d", now), randomStr, url)
	header.Set("Authorization", fmt.Sprintf(`V2_SHA256 appId=%s,sign=%s,timestamp=%d,nonce=%s`, appID, sign, now, randomStr))
}

func (s *Sub) PackReq() interface{} {
	if s.Base.Opt == base.OPTPay {
		return s.PackPayReq()
	} else if s.Base.Opt == base.OPTWithdraw {
		return s.PackWithdrawReq()
	}
	return nil
}

func (s *Sub) GetResp() (proto.Message, error) {
	log.Debug("resp:%v", s.Base.Resp)
	if s.Base.Opt == base.OPTPay {
		resp := s.Base.Resp.(*PayResp)
		if resp.Data.Action.URL == "" {
			return nil, errors.New("pay fail")
		}
		return &pb.InnerRechargeResp{APIOrderID: resp.Data.PaymentNo, URL: resp.Data.Action.URL, Channel: uint32(values.EaniPay)}, nil
	} else if s.Base.Opt == base.OPTWithdraw {
		resp := s.Base.Resp.(*WithdrawResp)
		if s.Base.Status == 0 && resp.Code != "OK" {
			return nil, errors.New("withdraw fail")
		}
		return &pb.InnerWithdrawResp{APIOrderID: resp.Data.PayoutNo, Channel: uint32(values.EaniPay)}, nil
	}
	return nil, errors.New("unknown opt")
}

func (s *Sub) PackPayReq() interface{} {
	r := s.Base.PayReq
	send := &PayReq{
		MerchantTradeNo: r.OrderID,
		Amount:          fmt.Sprintf("%d", r.Amount),
		Currency:        "INR",
		Description:     "BW",
		Payer:           Payer{UserID: fmt.Sprintf("%d", r.UID), Name: r.Name, Email: r.Email, Phone: r.Phone},
		PayMethod: struct {
			Type string `json:"type"` // UPI
		}{Type: "UPI"},
		TradeEnv: struct {
			IP string `json:"ip"`
		}{IP: r.IP},
		NotifyUrl: values.GetPayCallback(values.EaniPay),
		ReturnUrl: values.GetPayCallback(values.EaniPay),
	}
	s.Base.ReqData = send
	return send
}

func (s *Sub) PackWithdrawReq() interface{} {
	r := s.Base.WithdrawReq
	send := &WithdrawReq{
		MerchantTradeNo: r.OrderID,
		Amount:          fmt.Sprintf("%d", r.Amount),
		Currency:        "INR",
		Description:     "BW",
		NotifyUrl:       values.GetWithdrawCallback(values.EaniPay),
	}
	if r.PayType == common.WithdrawTypeBank {
		send.PayoutMethod.Type = "BANK_ACCOUNT"
		send.PayoutMethod.Mode = "IMPS"
		send.PayoutMethod.BankCode = r.PayCode
		send.PayoutMethod.BankName = r.BankName
		send.PayoutMethod.AccountNumber = r.CardNo
		send.PayoutMethod.PayeeName = r.Name
		send.PayoutMethod.PayeePhone = r.Phone
		send.PayoutMethod.PayeeEmail = r.Email
		send.PayoutMethod.PayeeAddress = r.Address
	} else {
		return nil
	}
	s.Base.ReqData = send
	return send
}

func (s *Sub) CheckSign(str string) bool {
	log.Debug("callback:%v", s.Base.CallbackReq)
	signStr := s.Base.C.GetHeader("Authorization")
	signData := parseData(signStr)
	if s.Base.Opt == base.OPTPayCB {
		req := s.Base.CallbackReq.(*PayCallbackReq)
		s.Base.CallbackResp.OrderID = req.Data.MerchantTradeNo
		if req.Data.Status == "PENDING" || req.Data.Status == "PROCESSING" {
			return false
		}
		s.Base.CallbackResp.APIOrderID = req.Data.PaymentNo
		s.Base.CallbackResp.Success = req.Data.Status == "PAID"
		return Sign(str, signData.Timestamp, signData.Nonce, values.GetPayCallback(values.EaniPay)) == signData.Sign
	} else if s.Base.Opt == base.OPTWithdrawCB {
		req := s.Base.CallbackReq.(*WithdrawCallbackReq)
		s.Base.CallbackResp.OrderID = req.Data.MerchantTradeNo
		if req.Data.Status == "PENDING" || req.Data.Status == "PROCESSING" {
			return false
		}
		s.Base.CallbackResp.Success = req.Data.Status == "PAID"
		return Sign(str, signData.Timestamp, signData.Nonce, values.GetWithdrawCallback(values.EaniPay)) == signData.Sign
	}
	return false
}

func Sign(bodyStr, t, ran, url string) string {
	signStr := fmt.Sprintf("%s\n%s\n%s\n%s\n%s\n%s\n%s\n",
		appID,
		appSecret,
		"POST",
		url,
		t,
		ran,
		bodyStr,
	)
	sign := util.CalculateSHA256(signStr)
	log.Debug("signStr:%s,sign:%s", signStr, sign)
	return sign
}