import { gameManager } from './core/GameManager';
import { GameScene } from './scenes/GameScene';
import { injectGlobalTheme } from './ui/theme';
import './ui/UIManager';
import { modManager } from './mods/ModManager';
import { dataRegistry } from './data/DataRegistry';
import { titleMenuUI } from './ui/components/TitleMenuUI';
import { CharacterCreationUI } from './ui/components/CharacterCreationUI';
import { eventBus } from './core/EventBus';
import './systems/AudioManager';

injectGlobalTheme();

let gameStarted = false;

async function initGame(): Promise<void> {
  modManager.loadConfig();

  await loadExampleMods();
  await dataRegistry.loadAll();

  // Show title menu instead of starting game directly
  titleMenuUI.show();

  // Listen for title menu actions
  eventBus.on('game:newGame', () => {
    const creationUI = new CharacterCreationUI();
    creationUI.show();
  });

  eventBus.on('game:start', () => {
    startGame();
  });

  eventBus.on('game:continue', () => {
    startGame();
  });

  eventBus.on('game:loadMenu', () => {
    startGame();
  });

  // Handle resize (debounced)
  let resizeTimer: ReturnType<typeof setTimeout>;
  window.addEventListener('resize', () => {
    clearTimeout(resizeTimer);
    resizeTimer = setTimeout(() => {
      const game = gameManager.getGame();
      if (game) {
        game.scale.resize(window.innerWidth, window.innerHeight);
      }
    }, 100);
  });

}

function startGame(): void {
  if (gameStarted) return;
  gameStarted = true;

  gameManager.init(
    {
      width: window.innerWidth,
      height: window.innerHeight,
      parent: 'game-container',
    },
    [GameScene]
  );

  // Allow returning to title menu
  eventBus.on('game:returnToMenu', () => {
    gameStarted = false;
  });
}

async function loadExampleMods(): Promise<void> {
  const mods = [
    '/data/mods/example-weapons-mod.json',
    '/data/mods/example-quest-mod.json',
    '/data/mods/base-scripts-mod.json',
    '/data/mods/example-spell-mod.json',
    '/data/mods/example-armor-mod.json',
  ];

  await Promise.all(mods.map(async (url) => {
    try {
      const response = await fetch(url);
      if (response.ok) {
        const mod = await response.json();
        await modManager.installMod(mod.manifest, mod.data, mod.scripts);
      }
    } catch {
      // Mod not found, skip
    }
  }));
}

initGame();