'use client';
import { useState, useEffect } from 'react';
import Viewport from './components/Viewport';
import World from './components/World';
import Room from './components/Room';
import Door from './components/Door';
export default function Home() {
  const [currentPos, setCurrentPos] = useState({ x: 0, y: 0 });
  const gridSize = { width: 2, height: 2 };
  const navigateTo = (targetStr) => {
    const [x, y] = targetStr.split(',').map(Number);
    if (!isNaN(x) && !isNaN(y)) { setCurrentPos({ x, y }); }
  };
  const moveRelative = (dx, dy) => {
    setCurrentPos((prev) => {
      const newX = prev.x + dx;
      const newY = prev.y + dy;
      if (newX >= 0 && newX < gridSize.width && newY >= 0 && newY < gridSize.height) {
        return { x: newX, y: newY };
      }
      return prev;
    });
  };
  useEffect(() => {
    const handleKeyDown = (e) => {
      switch (e.key.toLowerCase()) {
        case 'arrowup': case 'w': moveRelative(0, -1); break;
        case 'arrowdown': case 's': moveRelative(0, 1); break;
        case 'arrowleft': case 'a': moveRelative(-1, 0); break;
        case 'arrowright': case 'd': moveRelative(1, 0); break;
      }
    };
    window.addEventListener('keydown', handleKeyDown);
    return () => window.removeEventListener('keydown', handleKeyDown);
  }, []);
  return (
    <Viewport>
      <World currentPos={currentPos}>
        <Room id="room-0-0" isActive={currentPos.x === 0 && currentPos.y === 0}>
          <div className="content"><h1>Tír na nÓg</h1><p>Welcome to the Land of Eternal Youth.</p></div>
          <div className="doors">
            <Door direction="east" target="1,0" label="To the Meadow →" onNavigate={navigateTo} />
            <Door direction="south" target="0,1" label="Down the Alleys ↓" onNavigate={navigateTo} />
          </div>
        </Room>
        <Room id="room-1-0" isActive={currentPos.x === 1 && currentPos.y === 0}>
          <div className="content"><h2>The Meadow</h2><p>Where pixels bloom and legends grow.</p></div>
          <div className="doors">
            <Door direction="west" target="0,0" label="← Back to the Gate" onNavigate={navigateTo} />
            <Door direction="south" target="1,1" label="To the Portal ↓" onNavigate={navigateTo} />
          </div>
        </Room>
        <Room id="room-0-1" isActive={currentPos.x === 0 && currentPos.y === 1}>
          <div className="content"><h2>The Alleys</h2><p>Navigating the narrow paths of creation.</p></div>
          <div className="doors">
            <Door direction="north" target="0,0" label="↑ Up to the Gate" onNavigate={navigateTo} />
            <Door direction="east" target="1,1" label="To the Portal →" onNavigate={navigateTo} />
          </div>
        </Room>
        <Room id="room-1-1" isActive={currentPos.x === 1 && currentPos.y === 1}>
          <div className="content"><h2>The Portal</h2><p>Step through to join the faebits.</p></div>
          <div className="doors">
            <Door direction="north" target="1,0" label="↑ Up to the Meadow" onNavigate={navigateTo} />
            <Door direction="west" target="0,1" label="← Back to the Alleys" onNavigate={navigateTo} />
          </div>
        </Room>
      </World>
    </Viewport>
  );
}