Add Unraid and Gotify notifications

internal/model/validate.go

@@ -3,6 +3,7 @@ package model
 import (
 	"errors"
 	"fmt"
+	"net/url"
 	"path/filepath"
 	"regexp"
 	"strings"
@@ -42,12 +43,54 @@ func ValidateConfig(c Config) error {
 		}
 		repositoryOwners[job.RepositoryID] = job.ID
 	}
+	notifications := make(map[string]struct{}, len(c.Notifications))
+	for _, target := range c.Notifications {
+		if err := ValidateNotification(target); err != nil {
+			return fmt.Errorf("notification %q: %w", target.ID, err)
+		}
+		if _, exists := notifications[target.ID]; exists {
+			return fmt.Errorf("duplicate notification id %q", target.ID)
+		}
+		notifications[target.ID] = struct{}{}
+	}
 	if !filepath.IsAbs(c.Settings.RestoreRoot) {
 		return errors.New("restoreRoot must be absolute")
 	}
 	return nil
 }
 
+func ValidateNotification(target NotificationTarget) error {
+	if target.SchemaVersion != SchemaVersion || !idPattern.MatchString(target.ID) {
+		return errors.New("invalid schemaVersion or id")
+	}
+	if strings.TrimSpace(target.Name) == "" {
+		return errors.New("name is required")
+	}
+	switch target.Type {
+	case "unraid":
+	case "gotify":
+		parsed, err := url.Parse(target.URL)
+		if err != nil || (parsed.Scheme != "http" && parsed.Scheme != "https") || parsed.Host == "" {
+			return errors.New("Gotify URL must be an absolute HTTP or HTTPS URL")
+		}
+		if !idPattern.MatchString(target.TokenRef) {
+			return errors.New("Gotify tokenRef must be a valid secret ID")
+		}
+	default:
+		return fmt.Errorf("unsupported notification type %q", target.Type)
+	}
+	allowed := map[string]bool{"success": true, "warning": true, "failed": true}
+	if target.Enabled && len(target.Events) == 0 {
+		return errors.New("enabled notification requires at least one event")
+	}
+	for _, event := range target.Events {
+		if !allowed[event] {
+			return fmt.Errorf("unsupported event %q", event)
+		}
+	}
+	return nil
+}
+
 func ValidateJob(j Job) error {
 	if j.SchemaVersion != SchemaVersion || !idPattern.MatchString(j.ID) {
 		return errors.New("invalid schemaVersion or id")