package eanipay

import "strings"

const (
	baseURL = "https://gateway.eanishop.com"
	// baseURL          = "https://gateway.eanishop.com"
	payURL           = "/pg/v2/payment/create"
	queryPayURL      = "/pg/v2/payment/query"
	withdrawURL      = "/pg/v2/payout/create"
	queryWithdrawURL = "/pg/v2/payout/query"
	appID            = "c553240e3e3842ad98eb8ae23c3745b5"
	appSecret        = "8e77714f16d2487f9846cc6c3432ead5"
)

type PayReq struct {
	MerchantTradeNo string `json:"merchantTradeNo"`
	Amount          string `json:"amount"`
	Currency        string `json:"currency"`
	Description     string `json:"description"`
	Payer           Payer  `json:"payer"`
	PayMethod       struct {
		Type string `json:"type"` // UPI
	} `json:"payMethod"`
	TradeEnv struct {
		IP string `json:"ip"`
	} `json:"tradeEnv"` // 如果具体环境信息比较复杂，可以直接使用json.RawMessage
	MerchantAttach string `json:"merchantAttach,omitempty"` // omitempty表示如果字段为空，则在JSON中不显示
	NotifyUrl      string `json:"notifyUrl"`
	ReturnUrl      string `json:"returnUrl"`
}

type Payer struct {
	UserID string `json:"userId" validate:"required,max=64"`
	Name   string `json:"name" validate:"required,max=80"`
	Email  string `json:"email" validate:"required,email,max=80"`
	Phone  string `json:"phone" validate:"required,max=20"`
}

type PayResp struct {
	Code         string      `json:"code"`
	ErrorMessage string      `json:"errorMessage"`
	Data         PaymentData `json:"data"`
}

type PaymentData struct {
	PaymentNo       string `json:"paymentNo"`
	MerchantTradeNo string `json:"merchantTradeNo"`
	Amount          string `json:"amount"`
	Currency        string `json:"currency"`
	Action          Action `json:"action"`
}

type Action struct {
	PayMethodType string `json:"payMethodType"`
	Type          string `json:"type"`
	URL           string `json:"url"`
	Method        string `json:"method"`
}

type PayCallbackReq struct {
	Event        string `json:"event"`
	Code         string `json:"code"`
	ErrorMessage string `json:"errorMessage"`
	Data         struct {
		PaymentNo       string `json:"paymentNo"`
		MerchantTradeNo string `json:"merchantTradeNo"`
		Amount          string `json:"amount"`
		Currency        string `json:"currency"`
		RefundStatus    string `json:"refundStatus"`
		Status          string `json:"status"` // PENDING 待⽀付 PROCESSING ⽀付中 PAID ⽀付成功 FAILURE ⽀付失败 CANCELLED 已取消
		MerchantAttach  string `json:"merchantAttach"`
		CreatedTime     string `json:"createdTime"`
		PaidTime        string `json:"paidTime"`
	} `json:"data"`
}

type QueryPayReq struct {
	MerchantTradeNo string `json:"merchantTradeNo"`
}

type QueryPayResp struct {
	Code         string `json:"code"`
	ErrorMessage string `json:"errorMessage"`
	Data         struct {
		PaymentNo       string `json:"paymentNo"`
		MerchantTradeNo string `json:"merchantTradeNo"`
		Amount          string `json:"amount"`
		Currency        string `json:"currency"`
		RefundStatus    string `json:"refundStatus"`
		Status          string `json:"status"` // PENDING 待⽀付 PROCESSING ⽀付中 PAID ⽀付成功 FAILURE ⽀付失败 CANCELLED 已取消
		MerchantAttach  string `json:"merchantAttach"`
		CreatedTime     string `json:"createdTime"`
		PaidTime        string `json:"paidTime"`
	} `json:"data"`
}

type WithdrawReq struct {
	MerchantTradeNo string `json:"merchantTradeNo"`
	Amount          string `json:"amount"`
	Currency        string `json:"currency"`
	Description     string `json:"description"`
	PayoutMethod    struct {
		Type          string `json:"type"` // BANK_ACCOUNT
		Mode          string `json:"mode"` // IMPS
		BankCode      string `json:"bankCode"`
		BankName      string `json:"bankName"`
		AccountNumber string `json:"accountNumber"`
		PayeeName     string `json:"payeeName"`
		PayeePhone    string `json:"payeePhone"`
		PayeeEmail    string `json:"payeeEmail"`
		PayeeAddress  string `json:"payeeAddress"`
		// VPA           string `json:"vpa"`
	} `json:"payoutMethod"`
	MerchantAttach string `json:"merchantAttach,omitempty"`
	NotifyUrl      string `json:"notifyUrl"`
}

type WithdrawResp struct {
	Code         string `json:"code"` // OK
	ErrorMessage string `json:"errorMessage"`
	Data         struct {
		PayoutNo        string `json:"payoutNo"`
		MerchantTradeNo string `json:"merchantTradeNo"`
		Amount          string `json:"amount"`
		Currency        string `json:"currency"`
	} `json:"data"`
}

type WithdrawCallbackReq struct {
	Event        string `json:"event"`
	Code         string `json:"code"`
	ErrorMessage string `json:"errorMessage"`
	Data         struct {
		PayoutNo        string `json:"payoutNo"`
		MerchantTradeNo string `json:"merchantTradeNo"`
		Amount          string `json:"amount"`
		Currency        string `json:"currency"`
		TotalFee        string `json:"totalFee"`
		Status          string `json:"status"` // PENDING 待处理 PROCESSING 处理中 PAID 代付成功 FAILURE 代付失败 REVERSED 代付退票 CANCELLED 代付取消
		MerchantAttach  string `json:"merchantAttach"`
		CreatedTime     string `json:"createdTime"`
		PaidTime        string `json:"paidTime"`
	} `json:"data"`
}

type QueryWithdrawReq struct {
	MerchantTradeNo string `json:"merchantTradeNo"`
}

type QueryWithdrawResp struct {
	Code         string `json:"code"`
	ErrorMessage string `json:"errorMessage"`
	Data         struct {
		PayoutNo        string `json:"payoutNo"`
		MerchantTradeNo string `json:"merchantTradeNo"`
		Amount          string `json:"amount"`
		Currency        string `json:"currency"`
		TotalFee        string `json:"totalFee"`
		Status          string `json:"status"` // PENDING 待处理 PROCESSING 处理中 PAID 代付成功 FAILURE 代付失败 REVERSED 代付退票 CANCELLED 代付取消
		MerchantAttach  string `json:"merchantAttach"`
		CreatedTime     string `json:"createdTime"`
		PaidTime        string `json:"paidTime"`
	} `json:"data"`
}

type SignData struct {
	AppId     string
	Sign      string
	Timestamp string
	Nonce     string
}

func parseData(input string) SignData {
	input = strings.TrimPrefix(input, "V2_SHA256 ")
	pairs := strings.Split(input, ",")
	data := SignData{}
	for _, pair := range pairs {
		keyValue := strings.Split(pair, "=")
		if len(keyValue) == 2 {
			key := keyValue[0]
			value := keyValue[1]
			switch key {
			case "appId":
				data.AppId = value
			case "sign":
				data.Sign = value
			case "timestamp":
				data.Timestamp = value
			case "nonce":
				data.Nonce = value
			}
		}
	}
	return data
}