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type Chat = {
  id: string;
  title: string;
  messages: Array<Message>;
  date: string;
};

type TempChat = {
  messages: Array<Message>;
};

type Message = {
  id: string;
  content: string;
  transcripts: Array<any>;
  role: "user" | "assistant" | "system";
  timestamp: Date;
};

type Transcript = {
  index: number;
  text: string;
  timestamp: string;
  timestamp_seconds: number;
  filename: string;
  speaker: string;
};

export type { Chat, Message, Transcript, TempChat };

function chatToJson(chat: Chat): string {
  return JSON.stringify(chat, null, 2);
}

function messageToJson(message: Message): Object {
  // remove the timestamp, id and the transcripts from the message
  const { content, role } = message;
  return { content, role };
}

function transcriptToJson(transcript: Transcript): string {
  return JSON.stringify(transcript, null, 2);
}

function tempChatToJson(tempChat: TempChat): string {
  return JSON.stringify(tempChat, null, 2);
}

function tempChatToChat(tempChat: TempChat, title: string = "New Chat"): Chat {
  return {
    id: crypto.randomUUID(),
    title: title,
    messages: tempChat.messages,
    date: new Date().toISOString(),
  };
}

export {
  chatToJson,
  messageToJson,
  transcriptToJson,
  tempChatToJson,
  tempChatToChat,
};