import { setupWatch, monitorLogs } from "./fileWatch";
import { config, loadConfig } from "./config";
import { setupSocket } from "./networking/webSocket";
import signal from "signal-js";
import { RawData } from "ws";
import {
  fileChangeEventToMsg,
  fileRemovalEventToMsg,
  requestFilenames,
  requestDefinitionFile,
  getAllFiles
} from "./networking/messageGenerators";
import { EventType } from "./eventTypes";
import { messageHandler } from "./networking/messageHandler";
import { FileEvent } from "./interfaces";
import { TIMEOUT } from "dns";

export async function start() {
  loadConfig();
  const watch = await setupWatch(signal);
  const socket = setupSocket(signal);
  let isConnected: boolean = false;
  
  // Add a handler for received messages.
  signal.on(EventType.MessageReceived, (msg: RawData) => messageHandler(signal, msg, watch.paths));

  // Add a handler for when a connection to a game is made.
  signal.on(EventType.ConnectionMade, () => {
    isConnected = true;
    console.log("Connection made!");

    if (config.get("definitionFile").update) {
      signal.emit(EventType.MessageSend, requestDefinitionFile());
    }

    if (config.get("pushAllOnConnection")) {
      const extensions = config.get("allowedFiletypes");
      for (const path of watch.paths.keys()) {
        if (extensions.some((extension) => path.endsWith(extension)))
          signal.emit(EventType.MessageSend, fileChangeEventToMsg({ path }));
      }
    } else {
      // Upload missing files to the game.
      signal.emit(EventType.MessageSend, requestFilenames());
    }
  });

  // Add a handler for changed files.
  signal.on(EventType.FileChanged, (fileEvent: FileEvent) => {
    if (!config.get("quiet")) console.log(fileEvent.path + " changed");
    signal.emit(EventType.MessageSend, fileChangeEventToMsg(fileEvent));
  });

  // Add a handler for removed files, if allowed.
  if (config.get("allowDeletingFiles"))
    signal.on(EventType.FileDeleted, (fileEvent: FileEvent) =>
      signal.emit(EventType.MessageSend, fileRemovalEventToMsg(fileEvent)),
    );

  console.log(`Server is ready, running on ${config.get("port")}!`);

  process.on("SIGINT", function () {
    console.log("Shutting down!");

    watch.close();
    socket.close();
    process.exit();
  });

  await monitorLogs(signal);  
}