improve error handling

internal/service/booking/sync.go

@@ -14,78 +14,115 @@ import (
 func (bs Service) ParseFromApi(rawContent string) (*Booking, error) {
 	content := strings.ReplaceAll(strings.TrimSpace(rawContent), "\u00a0", " ")
 
-	arrivalDate := extractDate(`Date d'arrivée `, content)
-	departureDate := extractDate(`Date de départ `, content)
-	stayLength := extractInt(`Durée de séjour : (\d+) nuits`, content)
-	customerName := extractString(`Nom du client : \n\s+([\w\s]+)`, content)
-	customerName = strings.SplitN(customerName, "\n", 2)[0]
-	customerEmail := extractString(`[\w\.\-]+@[\w\.\-]+\.\w+`, content)
-	customerNumber := extractInt(`Nombre de personnes : \s*\n\s*(\d+)`, content)
-	commissionAmount := extractFloat(`Commission : € (\d+,\d+)`, content)
-	itemName := extractString(`Maison . Chambre. \((T2|T3) -`, content)
-	externalId := extractString(`Numéro de réservation : \n\s+(\d+)`, content)
-	standardRate := extractFloat(`Standard Rate\n\s+€ (\d+)`, content)
+	arrivalDate, err := extractDate(`Date d'arrivée `, content)
+	if err != nil {
+		return nil, err
+	}
+
+	departureDate, err := extractDate(`Date de départ `, content)
+	if err != nil {
+		return nil, err
+	}
+
+	stayLength, err := extractInt(`Durée de séjour : (\d+) nuits`, content)
+	if err != nil {
+		return nil, err
+	}
+
+	customerName, err := extractString(`Nom du client : \n\s+([\w\s]+)`, content)
+	if err != nil {
+		return nil, err
+	}
+
+	customerName = strings.SplitN(customerName, "\n", 2)[0]
+	customerEmail, err := extractString(`[\w\.\-]+@[\w\.\-]+\.\w+`, content)
+	if err != nil {
+		return nil, err
+	}
+
+	customerNumber, err := extractInt(`Nombre de personnes : \s*\n\s*(\d+)`, content)
+	if err != nil {
+		return nil, err
+	}
+
+	commissionAmount, err := extractFloat(`Commission : € (\d+,\d+)`, content)
+	if err != nil {
+		return nil, err
+	}
+
+	itemName, err := extractString(`Maison . Chambre. \((T2|T3) -`, content)
+	if err != nil {
+		return nil, err
+	}
+
+	externalId, err := extractString(`Numéro de réservation : \n\s+(\d+)`, content)
+	if err != nil {
+		return nil, err
+	}
+
+	standardRate, err := extractFloat(`Standard Rate\n\s+€ (\d+)`, content)
+	if err != nil {
+		return nil, err
+	}
 
-	log.Println(arrivalDate, departureDate, stayLength, customerName, customerEmail, customerNumber, commissionAmount, itemName, externalId, standardRate)
 	b := bs.Create(*formatDate(arrivalDate), *formatDate(departureDate), customerName, "", customerEmail, "Booking", customerNumber, commissionAmount, &externalId)
 	if item, ok := config.NewHost().Items[itemName]; ok {
 		bs.CreateItem(b.Id, item, stayLength, standardRate, "Card", customerNumber, b.Platform)
 	}
-	log.Println(b)
 
 	return b, nil
 }
 
-func extractDate(pattern, content string) string {
+func extractDate(pattern, content string) (string, error) {
 	re := regexp.MustCompile(pattern + `(lun|mar|mer|jeu|ven|sam|dim)\. \d{1,2} (janv|févr|mars|avr|mai|juin|juil|août|sept|oct|nov|déc)\.? \d{4}`)
 	dateMatch := re.FindString(content)
 
 	if dateMatch == "" {
-		log.Println("date not found")
-		return ""
+		return "", fmt.Errorf("date not found")
 	}
 
 	// Regular expression to remove the prefix
 	rePrefix := regexp.MustCompile(pattern + `\w+\.\s*`)
 	dateString := rePrefix.ReplaceAllString(dateMatch, "")
-	return dateString
+	return dateString, nil
 }
 
-func extractInt(pattern, content string) int {
+func extractInt(pattern, content string) (int, error) {
 	re := regexp.MustCompile(pattern)
 	match := re.FindStringSubmatch(content)
 	if len(match) > 1 {
 		val, err := strconv.Atoi(match[1])
-		if err == nil {
-			return val
+		if err != nil {
+			return 0, err
 		}
+		return val, nil
 	}
-	return 0
+	return 0.0, fmt.Errorf("no match for %s", pattern)
 }
 
-func extractFloat(pattern, content string) float64 {
+func extractFloat(pattern, content string) (float64, error) {
 	re := regexp.MustCompile(pattern)
 	match := re.FindStringSubmatch(content)
 	if len(match) > 1 {
 		val, err := strconv.ParseFloat(strings.ReplaceAll(match[1], ",", "."), 64)
-		if err == nil {
-			return val
+		if err != nil {
+			return 0, err
 		}
+		return val, nil
 	}
-	return 0.0
+	return 0.0, fmt.Errorf("no match for %s", pattern)
 }
 
-func extractString(pattern, content string) string {
+func extractString(pattern, content string) (string, error) {
 	re := regexp.MustCompile(pattern)
 	match := re.FindStringSubmatch(content)
 	log.Println(match)
 	if len(match) > 1 {
-		return strings.TrimSpace(match[1])
+		return strings.TrimSpace(match[1]), nil
 	} else if len(match) > 0 {
-		return strings.TrimSpace(match[0])
+		return strings.TrimSpace(match[0]), nil
 	}
-	log.Println("pattern not found")
-	return ""
+	return "", fmt.Errorf("pattern %s not found", pattern)
 }
 
 func formatDate(date string) *time.Time {