import { ChatMessage } from "../../database.d";
import DefaultChatParser from "./default";
import YtDlpChatParser from "./yt-dlp";

export abstract class ChatReplayParser {
  name: string = "";

  constructor(chatData: string) {
    if (this.constructor === ChatReplayParser)
      throw new Error("Abstract classes can't be instantiated.");
  }

  canParse(): boolean {
    return false;
  }

  parse(): ChatMessage[] {
    return [];
  }
}

export const parseChatReplay = (input: string) => {
  console.log("[chat] parsing chat data");
  const parser = [DefaultChatParser, YtDlpChatParser]
    .map((Parser) => new Parser(input))
    .find((parser) => parser.canParse());
  if (!parser) throw new Error("No suitable chat parser found");
  console.log("[chat] using", parser.name);
  const parsed = parser.parse();
  console.log("[chat] found", parsed.length, "messages");
  console.log(parsed)
  return parsed;
};