feat: enhance label parsing to support multiple formats and improve logging

main.go

@@ -1,6 +1,7 @@
 package main
 
 import (
+	"encoding/json"
 	"fmt"
 	"io"
 	"log"
@@ -28,7 +29,7 @@ func main() {
 	logger.Printf("ODOO_TICKET_NUMBER: %s\n", issueOdooTicketString)
 
 	issueTitle := os.Getenv("ISSUE_TITLE")
-	labelsStr := os.Getenv("ISSUE_LABELS")
+	labelsEnv := os.Getenv("ISSUE_LABELS")
 	issueNumberString := os.Getenv("ISSUE_NUMBER")
 
 	giteaToken := os.Getenv("GITEA_TOKEN")
@@ -57,14 +58,17 @@ func main() {
 	logger.Printf("Odoo ticket ID: %d\n", issueOdooTicketID)
 
 	// Map labels to Git Flow prefixes
-	prefix := "feature"
-	if labelsStr != "" {
-		prefix, err = getPrefixFromLabels(labelsStr)
+	labels := parseLabels(labelsEnv, logger)
+	if len(labels) > 0 {
+		logger.Printf("Extracted labels: %s\n", strings.Join(labels, ", "))
 	}
+	prefix := "feature"
+	prefix, err = getPrefixFromLabels(labels)
 	if err != nil {
 		logger.Printf("Error while determining the prefix: %v\n", err)
 		os.Exit(1)
 	}
+	logger.Printf("Chosen prefix: %s\n", prefix)
 
 	// Form the branch name in the format "prefix/ticket-number"
 	branchName := fmt.Sprintf("%s/ticket-%d", prefix, issueOdooTicketID)
@@ -150,7 +154,7 @@ func main() {
 }
 
 // Function to map labels to prefixes
-func getPrefixFromLabels(labelsStr string) (string, error) {
+func getPrefixFromLabels(labels []string) (string, error) {
 	// Define the label ➔ prefix correspondence
 	labelPrefixMap := map[string]string{
 		"enhancement": "feature",
@@ -158,9 +162,6 @@ func getPrefixFromLabels(labelsStr string) (string, error) {
 		"bug":         "hotfix",
 	}
 
-	// Split labels (assuming they are comma-separated)
-	labels := strings.Split(labelsStr, ",")
-
 	// Create a mapping with lower-case keys
 	labelPrefixMapLower := make(map[string]string)
 	for key, value := range labelPrefixMap {
@@ -169,9 +170,9 @@ func getPrefixFromLabels(labelsStr string) (string, error) {
 	}
 
 	for _, label := range labels {
-		label = strings.TrimSpace(label)
-		labelLower := strings.ToLower(label)
-		fmt.Printf("Current label: %s", labelLower)
+		trimmed := strings.TrimSpace(label)
+		labelLower := strings.ToLower(trimmed)
+		fmt.Printf("Current label: %s\n", labelLower)
 		if prefix, exists := labelPrefixMapLower[labelLower]; exists {
 			return prefix, nil
 		}
@@ -180,6 +181,58 @@ func getPrefixFromLabels(labelsStr string) (string, error) {
 	return "feature", nil
 }
 
+// Parse ISSUE_LABELS env which can be:
+// - JSON array of strings: ["bug", "enhancement"]
+// - JSON array of objects: [{"name":"bug"},{"name":"ui"}]
+// - Comma-separated string: "bug, enhancement"
+func parseLabels(raw string, logger *log.Logger) []string {
+	raw = strings.TrimSpace(raw)
+	if raw == "" {
+		return nil
+	}
+
+	// Try JSON array of strings
+	var arrStr []string
+	if err := json.Unmarshal([]byte(raw), &arrStr); err == nil {
+		return arrStr
+	}
+
+	// Try JSON array of objects with name
+	type lbl struct {
+		Name string `json:"name"`
+	}
+	var arrObj []lbl
+	if err := json.Unmarshal([]byte(raw), &arrObj); err == nil {
+		out := make([]string, 0, len(arrObj))
+		for _, o := range arrObj {
+			if o.Name != "" {
+				out = append(out, o.Name)
+			}
+		}
+		if len(out) > 0 {
+			return out
+		}
+	}
+
+	// Fallback: comma-separated values
+	if strings.Contains(raw, ",") {
+		parts := strings.Split(raw, ",")
+		for i := range parts {
+			parts[i] = strings.TrimSpace(parts[i])
+		}
+		return parts
+	}
+
+	// Last resort: if it looks like JSON but couldn't parse, log and return nil
+	if strings.HasPrefix(raw, "[") || strings.HasPrefix(raw, "{") {
+		logger.Printf("Warning: could not parse ISSUE_LABELS JSON: %s\n", raw)
+		return nil
+	}
+
+	// Otherwise single token
+	return []string{raw}
+}
+
 func runCommand(logger *log.Logger, name string, arg ...string) error {
 	cmd := exec.Command(name, arg...)
 	cmd.Stdout = os.Stdout