package kassa

import (
	"bytes"
	"encoding/base64"
	"encoding/json"
	"fmt"
	"github.com/google/uuid"
	"net/http"
	"relynolli-server/external/kassa/Measure"
	"relynolli-server/external/kassa/PaymentMode"
	"relynolli-server/external/kassa/PaymentSubject"
	"relynolli-server/external/kassa/TaxSystemCode"
	"relynolli-server/external/kassa/VatCodes"
	"sync"
	"time"
)

var once sync.Once

type KassaAmount struct {
	Value    string `json:"value"`
	Currency string `json:"currency"`
}

type KassaReceiptItems struct {
	Description    string                        `json:"description"`
	Amount         KassaAmount                   `json:"amount"`
	VatCode        VatCodes.VatCode              `json:"vat_code"`
	Quantity       string                        `json:"quantity"`
	Measure        Measure.Measure               `json:"measure"`
	PaymentSubject PaymentSubject.PaymentSubject `json:"payment_subject"`
	PaymentMode    PaymentMode.PaymentMode       `json:"payment_mode"`
}

type KassaCustomer struct {
	FullName string `json:"full_name"`
	Email    string `json:"email"`
	Phone    string `json:"phone"`
}

type KassaReceipt struct {
	Customer      KassaCustomer               `json:"customer"`
	Items         []KassaReceiptItems         `json:"items"`
	TaxSystemCode TaxSystemCode.TaxSystemCode `json:"tax_system_code"`
}

type KassaConfirmation struct {
	Type      string `json:"type"`
	ReturnUrl string `json:"return_url"`
}

type KassaPaymentReq struct {
	Amount       KassaAmount       `json:"amount"`
	Description  string            `json:"description"`
	Receipt      KassaReceipt      `json:"receipt"`
	Confirmation KassaConfirmation `json:"confirmation"`
	Capture      bool              `json:"capture"`
}

type KassaResult struct {
	Id          string      `json:"id"`
	Status      string      `json:"status"`
	Amount      KassaAmount `json:"amount"`
	Description string      `json:"description"`
	Recipient   struct {
		AccountId string `json:"account_id"`
		GatewayId string `json:"gateway_id"`
	} `json:"recipient"`
	CreatedAt    time.Time `json:"created_at"`
	Confirmation struct {
		Type            string `json:"type"`
		ConfirmationUrl string `json:"confirmation_url"`
	} `json:"confirmation"`
	Paid bool `json:"paid"`
}

func basicAuth(username, password string) string {
	auth := username + ":" + password
	return base64.StdEncoding.EncodeToString([]byte(auth))
}

func CreatePayment(orderId int, sum float64, fullName string, email string, phone string, items []KassaReceiptItems) (map[string]interface{}, error) {
	req := KassaPaymentReq{
		Amount:      KassaAmount{Value: fmt.Sprintf("%f", sum), Currency: "RUB"},
		Description: fmt.Sprintf("Заказ №%d", orderId),
		Confirmation: KassaConfirmation{
			Type:      "redirect",
			ReturnUrl: "https://relynolli.ru",
		},
		Capture: true,
		Receipt: KassaReceipt{
			Customer: KassaCustomer{
				FullName: fullName,
				Email:    email,
				Phone:    phone,
			},
			Items:         items,
			TaxSystemCode: TaxSystemCode.GENERAL,
		},
	}

	query, _ := json.Marshal(req)
	uid, err := uuid.NewUUID()

	client := http.Client{}
	request, _ := http.NewRequest(http.MethodPost, BASE_URL, bytes.NewBuffer(query))
	request.Header.Set("Authorization", "Basic "+basicAuth(ACCOUNT_ID, PASSWORD))
	request.Header.Set("Idempotence-Key", uid.String())
	request.Header.Set("Content-Type", "application/json")

	response, err := client.Do(request)

	result := map[string]interface{}{}
	json.NewDecoder(response.Body).Decode(&result)

	if err != nil {
		return nil, err
	}

	return result, nil

}