initial commit

api/kasa.go

@@ -0,0 +1,150 @@
+package api
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+	"io"
+
+	"resty.dev/v3"
+)
+
+func NewKasaInstance(token string) *Kasa {
+	return &Kasa{
+		token: token,
+		resty: resty.New(),
+	}
+}
+
+type Kasa struct {
+	token string
+	resty *resty.Client
+}
+
+func createReceiptRow(name string, cnt int, price float64, comment string, disc float64, taxgrp string) ReceiptRow {
+	return ReceiptRow{
+		Name:    name,
+		Cnt:     cnt,
+		Price:   price,
+		Disc:    disc,
+		Taxgrp:  taxgrp,
+		Comment: comment,
+	}
+}
+
+func createReceiptPayCash(PayType int, sum float64, comment string) ReceiptPay {
+	return ReceiptPay{
+		Type:    PayType,
+		Sum:     sum,
+		Comment: comment,
+	}
+}
+
+func createReceiptPayCard(PayType int, sum float64, comment string, cardmask string, bankID string) ReceiptPay {
+	return ReceiptPay{
+		Type:     PayType,
+		Sum:      sum,
+		Comment:  comment,
+		Paysys:   "parking_pos",
+		Cardmask: cardmask,
+		BankID:   bankID,
+	}
+}
+
+func getReceiptSum(rows []ReceiptRow, taxgrp string) float64 {
+	sum := 0.0
+	for _, row := range rows {
+		sum += (row.Price - row.Disc) * float64(row.Cnt)
+	}
+	return sum
+}
+
+func createReceipt(PayType int, sum float64, comment string, cardmask string, bankID string, name string, cnt int, price float64, disc float64, taxgrp string) Receipt {
+	rows := []ReceiptRow{createReceiptRow(name, cnt, price, comment, disc, taxgrp)}
+	sum = getReceiptSum(rows, taxgrp)
+
+	r := Receipt{
+		Sum:      sum,
+		Round:    0.00,
+		Disc:     0,
+		DiscType: 0,
+		Rows:     rows,
+		Pays:     []ReceiptPay{createReceiptPayCard(PayType, sum, comment, cardmask, bankID)},
+	}
+
+	fmt.Println("Receipt sum:", r.Sum)
+	return r
+}
+
+// "fiscal": {
+//     "task": 1,
+//     "cashier": "Парковка",
+//     "receipt": {
+//       "sum": 40.00,
+//       "round": 0.00,
+//       "comment_up": "Квитанція за паркування",
+//       "comment_down": "Дякуємо за користування паркінгом!",
+//       "disc": 0.00,
+//       "disc_type": 0,
+//       "rows": [
+//         {
+//           "code": "PARK-3H",
+//           "pop": "Оплата за послуги паркування",
+//           "name": "Парковка, 3 години",
+//           "cnt": 1,
+//           "price": 40.00,
+//           "disc": 0.00,
+//           "taxgrp": "4",
+//           "comment": "Тариф: 3 години"
+//         }
+//       ],
+//       "pays": [
+//         {
+//           "type": 0,
+//           "sum": 40.00,
+//           "change": 0.00,
+//           "comment": "Оплата готівкою"
+//         }
+//       ]
+//     }
+//   }
+
+func createFiscal(source string, cashier string, PayType int, sum float64, comment string, cardmask string, bankID string, name string, cnt int, price float64, disc float64, taxgrp string) FiskalCheck {
+	return FiskalCheck{
+		Source: source,
+		Fiscal: Fiscal{
+			Task:    1,
+			Cashier: cashier,
+			Receipt: createReceipt(PayType, sum, comment, cardmask, bankID, name, cnt, price, disc, taxgrp),
+		},
+	}
+}
+
+func (k *Kasa) NewSell(ctx context.Context, PayType int, sum float64, comment string, cardmask string, bankID string, name string, cnt int, price float64, disc float64, taxgrp string) (*KasaResponse, error) {
+	fiscal := createFiscal("kasa", "test", PayType, sum, comment, cardmask, bankID, name, cnt, price, disc, taxgrp)
+
+	// create a POST request to the kasa api https://kasa.vchasno.ua/api/v3/fiscal/execute with resty
+	request, err := k.resty.R().SetBody(fiscal).SetHeader("Authorization", k.token).Post("https://kasa.vchasno.ua/api/v3/fiscal/execute")
+	if err != nil {
+		return nil, fmt.Errorf("failed to create a POST request to the kasa api: %w", err)
+	}
+	if request.IsError() {
+		return nil, fmt.Errorf("failed to create a POST request to the kasa api: %v", request.Error())
+	}
+	if request.StatusCode() != 200 {
+		return nil, fmt.Errorf("failed to create a POST request to the kasa api: %v", request.Error())
+	}
+
+	body, err := io.ReadAll(request.Body)
+	if err != nil {
+		return nil, fmt.Errorf("failed to read response body: %w", err)
+	}
+
+	fmt.Println(string(body))
+	var response KasaResponse
+	if err := json.Unmarshal(body, &response); err != nil {
+		return nil, fmt.Errorf("failed to unmarshal response: %w", err)
+	}
+
+	return &response, nil
+}