first commit

server/internal/notify/helpers.go

@@ -0,0 +1,49 @@
+package notify
+
+import (
+	"fmt"
+	"strconv"
+	"strings"
+)
+
+func asString(value any) string {
+	text, _ := value.(string)
+	return strings.TrimSpace(text)
+}
+
+func asInt(value any) int {
+	switch actual := value.(type) {
+	case int:
+		return actual
+	case int64:
+		return int(actual)
+	case float64:
+		return int(actual)
+	case string:
+		parsed, _ := strconv.Atoi(strings.TrimSpace(actual))
+		return parsed
+	default:
+		return 0
+	}
+}
+
+func splitCommaValues(value string) []string {
+	items := strings.Split(value, ",")
+	result := make([]string, 0, len(items))
+	for _, item := range items {
+		trimmed := strings.TrimSpace(item)
+		if trimmed != "" {
+			result = append(result, trimmed)
+		}
+	}
+	return result
+}
+
+func validateRequiredConfig(config map[string]any, fields ...string) error {
+	for _, field := range fields {
+		if strings.TrimSpace(asString(config[field])) == "" {
+			return fmt.Errorf("%s is required", field)
+		}
+	}
+	return nil
+}