v7.1.4

backend/artist_format.go

@@ -0,0 +1,90 @@
+package backend
+
+import "strings"
+
+func normalizeArtistSeparator(separator string) string {
+	separator = strings.TrimSpace(separator)
+	if separator == "," || separator == ";" {
+		return separator
+	}
+	return ""
+}
+
+func splitArtistSegment(segment string, separator string) []string {
+	segment = strings.TrimSpace(segment)
+	if segment == "" {
+		return nil
+	}
+
+	if strings.Contains(segment, "|||SEP|||") {
+		return strings.Split(segment, "|||SEP|||")
+	}
+
+	parts := []string{segment}
+
+	if separator = normalizeArtistSeparator(separator); separator != "" {
+		var separated []string
+		for _, part := range parts {
+			for _, item := range strings.Split(part, separator) {
+				separated = append(separated, item)
+			}
+		}
+		parts = separated
+	} else if strings.Contains(segment, ";") {
+		var separated []string
+		for _, part := range parts {
+			for _, item := range strings.Split(part, ";") {
+				separated = append(separated, item)
+			}
+		}
+		parts = separated
+	}
+
+	return parts
+}
+
+func SplitArtistCredits(artistStr, separator string) []string {
+	rawParts := splitArtistSegment(artistStr, separator)
+	if len(rawParts) == 0 {
+		return nil
+	}
+
+	seen := make(map[string]struct{}, len(rawParts))
+	result := make([]string, 0, len(rawParts))
+	for _, part := range rawParts {
+		part = strings.TrimSpace(part)
+		if part == "" {
+			continue
+		}
+		if _, exists := seen[part]; exists {
+			continue
+		}
+		seen[part] = struct{}{}
+		result = append(result, part)
+	}
+
+	return result
+}
+
+func SplitMetadataValues(value, separator string) []string {
+	rawParts := splitArtistSegment(value, separator)
+	if len(rawParts) == 0 {
+		return nil
+	}
+
+	seen := make(map[string]struct{}, len(rawParts))
+	result := make([]string, 0, len(rawParts))
+	for _, part := range rawParts {
+		part = strings.TrimSpace(part)
+		if part == "" {
+			continue
+		}
+		if _, exists := seen[part]; exists {
+			continue
+		}
+		seen[part] = struct{}{}
+		result = append(result, part)
+	}
+
+	return result
+}