Function contentToString

server/src/lib/content.ts:14–34

(content: unknown)

export type ContentBlock = ContentTextBlock | { type: string; [key: string]: unknown };

export function contentToString(content: unknown): string {
  if (typeof content === 'string') return content;
  if (content == null) return '';
  if (Array.isArray(content)) {
    return content
      .map((b) => {
        if (typeof b === 'string') return b;
        const block = b as { type?: string; text?: unknown };
        // OpenAI blocks carry type:'text'; Gemini-lineage agents (Qwen Code,
        // AionUI) send part-style `{ text }` with no type at all — accept any
        // block whose `text` is a string and whose type doesn't say it's
        // something else. (#200)
        if (typeof block?.text === 'string' && (block.type === 'text' || block.type === undefined)) {
          return block.text;
        }
        return '';
      })
      .join('');
  }
  return '';
}

export function flattenMessageContent(messages: ChatMessage[]): ChatMessage[] {
  return messages.map((m) => ({