import { GamesLog } from "./logging/games_log.js";
import { Tournament } from "./tournament/tournament.js";
import { Board } from "./game/board.js";
import { RankingReport } from "./reports/ranking_report.js";
import { BaseError } from "./common_errors/base_error.js";
import { ArgParse } from "./utils/arg_parse.js";

function printUsage() {
  console.log("Usage: npm start -- boardFile gameLogFile [options]");
  console.log("  options:");
  console.log("    -h --help                 Print this message");
  console.log("    -m --maxPlayersPerGame    Maximum players per game");
  console.log("    -d --debug                Print stack trace on error");
}

async function main() {
  // Process command line arguments
  if (ArgParse.getBooleanArg("h", "help")) return printUsage();

  const boardFilename = ArgParse.getStringArg(2);
  if (!boardFilename) return printUsage();

  const gameLogFilename = ArgParse.getStringArg(3);
  if (!gameLogFilename) return printUsage();

  const maxPlayersPerGame =
    ArgParse.getIntegerArg("m", "maxPlayersPerGame") ?? 2;

  // Set up tournament
  const board = await Board.loadFromFile(boardFilename);
  const tournament = new Tournament(board, { maxPlayersPerGame });

  // Retrieve game events
  const gamesLog = new GamesLog();
  await gamesLog.loadFile(gameLogFilename);
  const gameEvents = await gamesLog.readEvents();

  // Process game events
  tournament.processEvents(gameEvents);
  tournament.requireCompletion();

  // Generate and print report
  const rankingReport = new RankingReport(tournament);
  rankingReport.printPlayerSummary();
}

try {
  await main();
} catch (err) {
  if (err instanceof BaseError) {
    const printTrace = ArgParse.getBooleanArg("d", "debug");
    if (printTrace) {
      console.error(err);
    } else {
      console.log(`Error: ${err.message}`);
    }
  } else {
    // Non-Application Error, re-throw
    throw err;
  }
}