Function getLabelFilter

frontend/src/react/stores/app/utils.ts:68–96

(labels: string[])

// (`labels.{key} == "v"` or `labels.{key} in [...]`). Ported verbatim from
// the legacy Pinia database store.
export function getLabelFilter(labels: string[]): string[] {
  const labelMap = new Map<string, string[]>();
  for (const label of labels) {
    const sections = label.split(":");
    if (sections.length !== 2) {
      continue;
    }
    const [key, rawValue] = sections;
    const values = rawValue.split(",");
    if (!labelMap.has(key)) {
      labelMap.set(key, []);
    }
    labelMap.get(key)?.push(...values);
  }
  return [...labelMap.entries()].reduce((result, [key, values]) => {
    switch (values.length) {
      case 0:
        return result;
      case 1:
        result.push(`labels.${key} == "${values[0]}"`);
        return result;
      default:
        result.push(
          `labels.${key} in [${values.map((v) => `"${v}"`).join(", ")}]`
        );
        return result;
    }
  }, [] as string[]);
}

// Builds the CEL filter string for `listDatabases` from a structured
// `DatabaseFilter`. Mirrors the legacy Pinia `getListDatabaseFilter` so the