rename golang to go

extensions/go/MPStudyGO/main.go

@@ -0,0 +1,143 @@
+package main
+
+import (
+	"bytes"
+	"encoding/json"
+	"fmt"
+	"io"
+	"net/http"
+	"os"
+	"time"
+
+	"github.com/google/uuid"
+	"github.com/joho/godotenv"
+)
+
+// Request structures based on MP documentation
+type PrintRequest struct {
+	Type              string      `json:"type"`
+	ExternalReference string      `json:"external_reference"`
+	Config            PrintConfig `json:"config"`
+	Content           string      `json:"content"`
+}
+
+type PrintConfig struct {
+	Point PointSettings `json:"point"`
+}
+
+type PointSettings struct {
+	TerminalID string `json:"terminal_id"`
+	Subtype    string `json:"subtype"`
+}
+
+func main() {
+	err := godotenv.Load("../.env")
+	if err != nil {
+		fmt.Println("Error loading .env file")
+	}
+
+	// Example receipt using supported tags: {b}, {center}, {br}, {s}
+	receiptContent := "{center}{b}SEKIPOS VENTA{/b}{br}" +
+		"--------------------------------{br}" +
+		"{left}Producto: Choripan Premium{br}" +
+		"{left}Total: $5.500{br}" +
+		"--------------------------------{br}" +
+		"{center}{s}Gracias por su compra{/s}{br}"
+
+	resp, err := SendPrintAction(receiptContent)
+	if err != nil {
+		fmt.Printf("Error: %v\n", err)
+		return
+	}
+	fmt.Printf("Response: %s\n", resp)
+}
+
+func SendPrintAction(content string) (string, error) {
+	apiURL := "https://api.mercadopago.com/terminals/v1/actions"
+	accessToken := os.Getenv("MP_ACCESS_TOKEN")
+	terminalID := os.Getenv("MP_TERMINAL_ID")
+
+	payload := PrintRequest{
+		Type:              "print", // Required
+		ExternalReference: fmt.Sprintf("ref_%d", time.Now().Unix()),
+		Config: PrintConfig{
+			Point: PointSettings{
+				TerminalID: terminalID,
+				Subtype:    "custom", // For text with tags
+			},
+		},
+		Content: content, // Must be 100-4096 chars
+	}
+
+	jsonData, _ := json.Marshal(payload)
+
+	req, _ := http.NewRequest("POST", apiURL, bytes.NewBuffer(jsonData))
+	req.Header.Set("Content-Type", "application/json")
+	req.Header.Set("Authorization", "Bearer "+accessToken)
+	// Mandatory Unique UUID V4
+	req.Header.Set("X-Idempotency-Key", uuid.New().String())
+
+	client := &http.Client{Timeout: 10 * time.Second}
+	resp, err := client.Do(req)
+	if err != nil {
+		return "", err
+	}
+	defer resp.Body.Close()
+
+	body, _ := io.ReadAll(resp.Body)
+
+	if resp.StatusCode != http.StatusCreated && resp.StatusCode != http.StatusOK {
+		return "", fmt.Errorf("MP Error %d: %s", resp.StatusCode, string(body))
+	}
+
+	return string(body), nil
+}
+
+func PartialRefund(orderID string, paymentID string, amount string) (string, error) {
+	// Endpoint para reembolsos según la referencia de API
+	apiURL := fmt.Sprintf("https://api.mercadopago.com/v1/orders/%s/refund", orderID)
+	token := os.Getenv("MP_ACCESS_TOKEN")
+
+	payload := map[string]interface{}{
+		"transactions": []map[string]string{
+			{
+				"id":     paymentID,
+				"amount": amount, // Debe ser un string sin decimales
+			},
+		},
+	}
+
+	body, _ := json.Marshal(payload)
+	req, _ := http.NewRequest("POST", apiURL, bytes.NewBuffer(body))
+	req.Header.Set("Authorization", "Bearer "+token)
+	req.Header.Set("Content-Type", "application/json")
+	req.Header.Set("X-Idempotency-Key", uuid.New().String())
+
+	client := &http.Client{}
+	resp, err := client.Do(req)
+	if err != nil {
+		return "", err
+	}
+	defer resp.Body.Close()
+
+	resBody, _ := io.ReadAll(resp.Body)
+	return string(resBody), nil
+}
+
+func GetOrderStatus(orderID string) (string, error) {
+	apiURL := fmt.Sprintf("https://api.mercadopago.com/v1/orders/%s", orderID)
+	token := os.Getenv("MP_ACCESS_TOKEN")
+
+	req, _ := http.NewRequest("GET", apiURL, nil)
+	req.Header.Set("Authorization", "Bearer "+token)
+
+	client := &http.Client{}
+	resp, err := client.Do(req)
+	if err != nil {
+		return "", err
+	}
+	defer resp.Body.Close()
+
+	resBody, _ := io.ReadAll(resp.Body)
+	return string(resBody), nil
+}