615 lines
20 KiB
JavaScript
615 lines
20 KiB
JavaScript
// FILE: internal/webserver/web/app.js
|
|
// Game state management
|
|
let gameState = {
|
|
gameId: null,
|
|
fen: null,
|
|
turn: 'w',
|
|
isPlayerWhite: true,
|
|
isLocked: false,
|
|
pollInterval: null,
|
|
apiUrl: '',
|
|
selectedSquare: null,
|
|
healthCheckInterval: null,
|
|
networkError: false,
|
|
moveList: [],
|
|
};
|
|
|
|
// Chess piece Unicode
|
|
const pieceMap = {
|
|
'p': '♙', 'r': '♜', 'n': '♞', 'b': '♝', 'q': '♛', 'k': '♚',
|
|
'P': '♙', 'R': '♜', 'N': '♞', 'B': '♝', 'Q': '♛', 'K': '♚'
|
|
};
|
|
|
|
// Initialize on page load
|
|
document.addEventListener('DOMContentLoaded', async () => {
|
|
const config = await getConfig();
|
|
gameState.apiUrl = config.apiUrl;
|
|
|
|
document.getElementById('new-game-btn').addEventListener('click', showNewGameModal);
|
|
document.getElementById('undo-btn').addEventListener('click', undoMoves);
|
|
document.getElementById('start-game-btn').addEventListener('click', startNewGame);
|
|
document.getElementById('cancel-btn').addEventListener('click', hideNewGameModal);
|
|
document.getElementById('copy-fen').addEventListener('click', copyFEN);
|
|
document.getElementById('copy-history').addEventListener('click', copyHistory);
|
|
|
|
const levelSlider = document.getElementById('computer-level');
|
|
const levelValue = document.getElementById('level-value');
|
|
levelSlider.addEventListener('input', () => { levelValue.textContent = levelSlider.value; });
|
|
|
|
const timeSlider = document.getElementById('search-time');
|
|
const timeValue = document.getElementById('time-value');
|
|
timeSlider.addEventListener('input', () => { timeValue.textContent = timeSlider.value; });
|
|
|
|
startHealthCheck();
|
|
// Don't auto-show modal on load
|
|
});
|
|
|
|
async function getConfig() {
|
|
try {
|
|
const response = await fetch('/config');
|
|
return await response.json();
|
|
} catch (error) {
|
|
console.error('Failed to get config:', error);
|
|
return { apiUrl: 'http://localhost:8080' };
|
|
}
|
|
}
|
|
|
|
function startHealthCheck() {
|
|
const checkHealth = async () => {
|
|
try {
|
|
const response = await fetch(`${gameState.apiUrl}/health`);
|
|
if (response.ok) {
|
|
const health = await response.json();
|
|
updateServerIndicator(health.status === 'healthy' ? 'healthy' : 'degraded');
|
|
updateStorageIndicator(health.storage || 'unknown');
|
|
gameState.networkError = false;
|
|
} else {
|
|
updateServerIndicator('degraded');
|
|
updateStorageIndicator('unknown');
|
|
}
|
|
} catch (error) {
|
|
updateServerIndicator('degraded');
|
|
updateStorageIndicator('unknown');
|
|
gameState.networkError = true;
|
|
}
|
|
};
|
|
|
|
checkHealth();
|
|
gameState.healthCheckInterval = setInterval(checkHealth, 10000);
|
|
}
|
|
|
|
function updateServerIndicator(status) {
|
|
const indicator = document.getElementById('server-indicator');
|
|
const light = indicator.querySelector('.light');
|
|
light.setAttribute('data-status', status);
|
|
indicator.setAttribute('data-status', status);
|
|
}
|
|
|
|
function updateStorageIndicator(status) {
|
|
const indicator = document.getElementById('storage-indicator');
|
|
const light = indicator.querySelector('.light');
|
|
light.setAttribute('data-status', status);
|
|
indicator.setAttribute('data-status', status);
|
|
}
|
|
|
|
function updateTurnIndicator(state, turn) {
|
|
const indicator = document.getElementById('turn-indicator');
|
|
const light = indicator.querySelector('.light');
|
|
|
|
let status = '';
|
|
let tooltip = 'Turn: ';
|
|
|
|
if (gameState.networkError) {
|
|
status = 'network-error';
|
|
tooltip += 'Network Error';
|
|
} else if (state === 'pending' || gameState.isLocked) {
|
|
status = 'thinking';
|
|
tooltip += 'Computer Thinking';
|
|
} else if (state && isGameOver(state)) {
|
|
switch(state) {
|
|
case 'white wins':
|
|
status = 'white-wins';
|
|
tooltip = 'White Wins';
|
|
break;
|
|
case 'black wins':
|
|
status = 'black-wins';
|
|
tooltip = 'Black Wins';
|
|
break;
|
|
case 'stalemate':
|
|
status = 'stalemate';
|
|
tooltip = 'Stalemate';
|
|
break;
|
|
case 'draw':
|
|
status = 'draw';
|
|
tooltip = 'Draw';
|
|
break;
|
|
default:
|
|
status = 'unknown';
|
|
tooltip = 'Game Over';
|
|
}
|
|
} else if (turn === 'w') {
|
|
status = 'white';
|
|
tooltip += 'White';
|
|
} else {
|
|
status = 'black';
|
|
tooltip += 'Black';
|
|
}
|
|
|
|
light.setAttribute('data-status', status);
|
|
indicator.setAttribute('data-status', tooltip.split(': ')[0]);
|
|
}
|
|
|
|
function showNewGameModal() {
|
|
const modal = document.getElementById('modal-overlay');
|
|
modal.classList.add('show');
|
|
setupModalKeyboardNav();
|
|
}
|
|
|
|
function hideNewGameModal() {
|
|
const modal = document.getElementById('modal-overlay');
|
|
modal.classList.remove('show');
|
|
teardownModalKeyboardNav();
|
|
}
|
|
|
|
function setupModalKeyboardNav() {
|
|
document.addEventListener('keydown', handleModalKeydown);
|
|
}
|
|
|
|
function teardownModalKeyboardNav() {
|
|
document.removeEventListener('keydown', handleModalKeydown);
|
|
}
|
|
|
|
function handleModalKeydown(e) {
|
|
const modal = document.getElementById('modal-overlay');
|
|
if (!modal.classList.contains('show')) return;
|
|
|
|
switch(e.key) {
|
|
case 'Enter':
|
|
e.preventDefault();
|
|
startNewGame();
|
|
break;
|
|
case 'Escape':
|
|
e.preventDefault();
|
|
hideNewGameModal();
|
|
break;
|
|
case 'w':
|
|
case 'W':
|
|
e.preventDefault();
|
|
document.querySelector('input[name="player-color"][value="white"]').checked = true;
|
|
break;
|
|
case 'b':
|
|
case 'B':
|
|
e.preventDefault();
|
|
document.querySelector('input[name="player-color"][value="black"]').checked = true;
|
|
break;
|
|
case 'l':
|
|
case 'L':
|
|
e.preventDefault();
|
|
document.getElementById('computer-level').focus();
|
|
break;
|
|
case 's':
|
|
case 'S':
|
|
e.preventDefault();
|
|
document.getElementById('search-time').focus();
|
|
break;
|
|
case 'ArrowLeft':
|
|
handleSliderNav(e, -1);
|
|
break;
|
|
case 'ArrowRight':
|
|
handleSliderNav(e, 1);
|
|
break;
|
|
}
|
|
}
|
|
|
|
function handleSliderNav(e, direction) {
|
|
const activeEl = document.activeElement;
|
|
if (activeEl.id === 'computer-level') {
|
|
e.preventDefault();
|
|
activeEl.value = Math.max(0, Math.min(20, parseInt(activeEl.value) + direction));
|
|
activeEl.dispatchEvent(new Event('input'));
|
|
} else if (activeEl.id === 'search-time') {
|
|
e.preventDefault();
|
|
activeEl.value = Math.max(100, Math.min(10000, parseInt(activeEl.value) + direction * 100));
|
|
activeEl.dispatchEvent(new Event('input'));
|
|
}
|
|
}
|
|
|
|
function copyFEN() {
|
|
const fenText = document.getElementById('fen-display').textContent;
|
|
navigator.clipboard.writeText(fenText).then(() => {
|
|
const btn = document.getElementById('copy-fen');
|
|
btn.classList.add('copied');
|
|
setTimeout(() => {
|
|
btn.classList.remove('copied');
|
|
}, 2000);
|
|
});
|
|
}
|
|
|
|
function copyHistory() {
|
|
const moves = gameState.moveList;
|
|
let pgn = '';
|
|
for (let i = 0; i < moves.length; i++) {
|
|
if (i % 2 === 0) {
|
|
pgn += `${Math.floor(i / 2) + 1}. `;
|
|
}
|
|
pgn += moves[i] + ' ';
|
|
}
|
|
|
|
navigator.clipboard.writeText(pgn.trim()).then(() => {
|
|
const btn = document.getElementById('copy-history');
|
|
btn.classList.add('copied');
|
|
setTimeout(() => {
|
|
btn.classList.remove('copied');
|
|
}, 2000);
|
|
});
|
|
}
|
|
|
|
async function startNewGame() {
|
|
const playerColor = document.querySelector('input[name="player-color"]:checked').value;
|
|
const computerLevel = parseInt(document.getElementById('computer-level').value);
|
|
const searchTime = parseInt(document.getElementById('search-time').value);
|
|
gameState.isPlayerWhite = (playerColor === 'white');
|
|
|
|
const whiteConfig = gameState.isPlayerWhite ? { type: 1 } : { type: 2, level: computerLevel, searchTime: searchTime };
|
|
const blackConfig = gameState.isPlayerWhite ? { type: 2, level: computerLevel, searchTime: searchTime } : { type: 1 };
|
|
|
|
try {
|
|
const response = await fetch(`${gameState.apiUrl}/api/v1/games`, {
|
|
method: 'POST',
|
|
headers: { 'Content-Type': 'application/json' },
|
|
body: JSON.stringify({ white: whiteConfig, black: blackConfig })
|
|
});
|
|
if (!response.ok) throw new Error('Failed to create game');
|
|
|
|
const game = await response.json();
|
|
gameState.gameId = game.gameId;
|
|
gameState.moveList = [];
|
|
hideNewGameModal();
|
|
initializeBoard();
|
|
updateGameDisplay(game);
|
|
document.getElementById('undo-btn').disabled = false;
|
|
if (!gameState.isPlayerWhite) triggerComputerMove();
|
|
|
|
} catch (error) {
|
|
console.error('Error starting game:', error);
|
|
alert('Failed to start new game');
|
|
gameState.networkError = true;
|
|
updateTurnIndicator('', '');
|
|
}
|
|
}
|
|
|
|
function initializeBoard() {
|
|
const boardEl = document.getElementById('board');
|
|
boardEl.innerHTML = '';
|
|
const isBlackPov = !gameState.isPlayerWhite;
|
|
|
|
// Update coordinate labels based on perspective
|
|
const topCoords = document.querySelector('.coordinates.top');
|
|
const leftCoords = document.querySelector('.coordinates.left');
|
|
|
|
if (isBlackPov) {
|
|
topCoords.innerHTML = '<span>h</span><span>g</span><span>f</span><span>e</span><span>d</span><span>c</span><span>b</span><span>a</span>';
|
|
leftCoords.innerHTML = '<span>1</span><span>2</span><span>3</span><span>4</span><span>5</span><span>6</span><span>7</span><span>8</span>';
|
|
} else {
|
|
topCoords.innerHTML = '<span>a</span><span>b</span><span>c</span><span>d</span><span>e</span><span>f</span><span>g</span><span>h</span>';
|
|
leftCoords.innerHTML = '<span>8</span><span>7</span><span>6</span><span>5</span><span>4</span><span>3</span><span>2</span><span>1</span>';
|
|
}
|
|
|
|
for (let i = 0; i < 64; i++) {
|
|
const square = document.createElement('div');
|
|
const rank = 7 - Math.floor(i / 8);
|
|
const file = i % 8;
|
|
const squareName = `${String.fromCharCode(97 + file)}${rank + 1}`;
|
|
|
|
const displayRank = isBlackPov ? 7 - rank : rank;
|
|
const displayFile = isBlackPov ? 7 - file : file;
|
|
|
|
square.className = `square ${(displayRank + displayFile) % 2 === 0 ? 'dark' : 'light'}`;
|
|
square.dataset.square = squareName;
|
|
square.addEventListener('click', handleSquareClick);
|
|
boardEl.appendChild(square);
|
|
}
|
|
}
|
|
|
|
function renderBoardFromFEN(fen) {
|
|
const fenBoard = fen.split(' ')[0];
|
|
|
|
// Clear board and remove checkmate indicators
|
|
document.querySelectorAll('.square').forEach(s => {
|
|
s.textContent = '';
|
|
s.classList.remove('white-piece', 'black-piece', 'mated-king');
|
|
delete s.dataset.pieceColor;
|
|
});
|
|
|
|
let rank = 7, file = 0;
|
|
for (const char of fenBoard) {
|
|
if (char === '/') {
|
|
rank--; file = 0;
|
|
} else if (/\d/.test(char)) {
|
|
file += parseInt(char, 10);
|
|
} else {
|
|
const squareName = `${String.fromCharCode(97 + file)}${rank + 1}`;
|
|
const squareEl = document.querySelector(`[data-square="${squareName}"]`);
|
|
if (squareEl) {
|
|
const pieceColor = (char === char.toUpperCase()) ? 'w' : 'b';
|
|
squareEl.textContent = pieceMap[char === 'P' ? 'P' : char.toLowerCase()] || '';
|
|
squareEl.classList.add(pieceColor === 'w' ? 'white-piece' : 'black-piece');
|
|
squareEl.dataset.pieceColor = pieceColor;
|
|
squareEl.dataset.pieceType = char.toLowerCase();
|
|
}
|
|
file++;
|
|
}
|
|
}
|
|
}
|
|
|
|
function handleSquareClick(e) {
|
|
if (gameState.isLocked) return;
|
|
|
|
// Block moves after game over
|
|
if (isGameOver(gameState.state)) return;
|
|
|
|
const squareEl = e.currentTarget;
|
|
const { square, pieceColor } = squareEl.dataset;
|
|
const playerTurnColor = gameState.isPlayerWhite ? 'w' : 'b';
|
|
|
|
if (gameState.turn !== playerTurnColor) return;
|
|
|
|
if (gameState.selectedSquare) {
|
|
const from = gameState.selectedSquare;
|
|
const fromEl = document.querySelector(`[data-square="${from}"]`);
|
|
fromEl.classList.remove('selected');
|
|
gameState.selectedSquare = null;
|
|
|
|
if (from !== square) {
|
|
handleHumanMove(from, square);
|
|
}
|
|
} else if (pieceColor === playerTurnColor) {
|
|
gameState.selectedSquare = square;
|
|
squareEl.classList.add('selected');
|
|
} else {
|
|
// Flash red for invalid piece selection
|
|
flashSquare(squareEl, false);
|
|
}
|
|
}
|
|
|
|
function flashSquare(element, success = true) {
|
|
const className = success ? 'flash-green' : 'flash-red';
|
|
element.classList.add(className);
|
|
setTimeout(() => element.classList.remove(className), 400);
|
|
}
|
|
|
|
async function handleHumanMove(from, to) {
|
|
const move = from + to;
|
|
const fromEl = document.querySelector(`[data-square="${from}"]`);
|
|
const toEl = document.querySelector(`[data-square="${to}"]`);
|
|
|
|
try {
|
|
const response = await fetch(`${gameState.apiUrl}/api/v1/games/${gameState.gameId}/moves`, {
|
|
method: 'POST',
|
|
headers: { 'Content-Type': 'application/json' },
|
|
body: JSON.stringify({ move })
|
|
});
|
|
|
|
const game = await response.json();
|
|
if (!response.ok) {
|
|
// Invalid move - flash both squares red
|
|
flashSquare(fromEl, false);
|
|
flashSquare(toEl, false);
|
|
renderBoardFromFEN(gameState.fen);
|
|
return;
|
|
}
|
|
|
|
// Valid move - flash both squares green
|
|
flashSquare(fromEl, true);
|
|
flashSquare(toEl, true);
|
|
|
|
updateGameDisplay(game);
|
|
if (!isGameOver(game.state)) {
|
|
triggerComputerMove();
|
|
}
|
|
} catch (error) {
|
|
console.error('Error making move:', error);
|
|
gameState.networkError = true;
|
|
updateTurnIndicator('', gameState.turn);
|
|
}
|
|
}
|
|
|
|
async function triggerComputerMove() {
|
|
lockBoard();
|
|
try {
|
|
await fetch(`${gameState.apiUrl}/api/v1/games/${gameState.gameId}/moves`, {
|
|
method: 'POST',
|
|
headers: { 'Content-Type': 'application/json' },
|
|
body: JSON.stringify({ move: 'cccc' })
|
|
});
|
|
gameState.networkError = false;
|
|
startPolling();
|
|
} catch (error) {
|
|
console.error('Error triggering computer move:', error);
|
|
gameState.networkError = true;
|
|
updateTurnIndicator('', gameState.turn);
|
|
unlockBoard();
|
|
}
|
|
}
|
|
|
|
function startPolling() {
|
|
gameState.pollInterval = setInterval(async () => {
|
|
try {
|
|
const response = await fetch(`${gameState.apiUrl}/api/v1/games/${gameState.gameId}`);
|
|
if (!response.ok) throw new Error('Failed to get game state');
|
|
|
|
const game = await response.json();
|
|
if (game.state !== 'pending') {
|
|
stopPolling();
|
|
updateGameDisplay(game);
|
|
unlockBoard();
|
|
}
|
|
gameState.networkError = false;
|
|
} catch (error) {
|
|
console.error('Error polling game state:', error);
|
|
gameState.networkError = true;
|
|
updateTurnIndicator('', gameState.turn);
|
|
stopPolling();
|
|
unlockBoard();
|
|
}
|
|
}, 1500);
|
|
}
|
|
|
|
function stopPolling() {
|
|
clearInterval(gameState.pollInterval);
|
|
gameState.pollInterval = null;
|
|
}
|
|
|
|
function lockBoard() {
|
|
gameState.isLocked = true;
|
|
updateTurnIndicator('pending', gameState.turn);
|
|
}
|
|
|
|
function unlockBoard() {
|
|
gameState.isLocked = false;
|
|
updateTurnIndicator('', gameState.turn);
|
|
}
|
|
|
|
async function undoMoves() {
|
|
if (gameState.isLocked) return;
|
|
try {
|
|
const response = await fetch(`${gameState.apiUrl}/api/v1/games/${gameState.gameId}/undo`, {
|
|
method: 'POST',
|
|
headers: { 'Content-Type': 'application/json' },
|
|
body: JSON.stringify({ count: 2 })
|
|
});
|
|
if (!response.ok) throw new Error('Failed to undo moves');
|
|
const game = await response.json();
|
|
|
|
// Clear checkmate state
|
|
gameState.state = game.state;
|
|
|
|
updateGameDisplay(game);
|
|
} catch (error) {
|
|
console.error('Error undoing moves:', error);
|
|
gameState.networkError = true;
|
|
updateTurnIndicator('', gameState.turn);
|
|
}
|
|
}
|
|
|
|
function renderMoveHistory(moves) {
|
|
const grid = document.getElementById('move-grid');
|
|
grid.innerHTML = '';
|
|
|
|
let startsWithBlack = false;
|
|
if (gameState.fen) {
|
|
const fenParts = gameState.fen.split(' ');
|
|
const moveNum = parseInt(fenParts[5]) || 1;
|
|
const activeColor = fenParts[1];
|
|
startsWithBlack = (moveNum === 1 && activeColor === 'b' && moves.length === 0);
|
|
}
|
|
|
|
for (let i = 0; i < moves.length; i++) {
|
|
const isWhiteMove = (i % 2 === 0);
|
|
const moveNumber = Math.floor(i / 2) + 1;
|
|
|
|
if (i === 0 || i % 2 === 0) {
|
|
const numEl = document.createElement('div');
|
|
numEl.className = 'move-number';
|
|
numEl.textContent = moveNumber + '.';
|
|
grid.appendChild(numEl);
|
|
|
|
const whiteEl = document.createElement('div');
|
|
if (isWhiteMove && !startsWithBlack) {
|
|
whiteEl.className = 'move-white';
|
|
whiteEl.textContent = moves[i];
|
|
} else if (!isWhiteMove && startsWithBlack) {
|
|
whiteEl.className = 'move-empty';
|
|
whiteEl.textContent = '...';
|
|
} else {
|
|
whiteEl.className = 'move-empty';
|
|
whiteEl.textContent = '';
|
|
}
|
|
grid.appendChild(whiteEl);
|
|
|
|
const blackEl = document.createElement('div');
|
|
if (i + 1 < moves.length && !startsWithBlack) {
|
|
blackEl.className = 'move-black';
|
|
blackEl.textContent = moves[i + 1];
|
|
i++;
|
|
} else if (isWhiteMove && startsWithBlack) {
|
|
blackEl.className = 'move-black';
|
|
blackEl.textContent = moves[i];
|
|
} else {
|
|
blackEl.className = 'move-empty';
|
|
blackEl.textContent = '';
|
|
}
|
|
grid.appendChild(blackEl);
|
|
}
|
|
}
|
|
|
|
const historyContainer = document.getElementById('move-history');
|
|
historyContainer.scrollTop = historyContainer.scrollHeight;
|
|
}
|
|
|
|
function updateGameDisplay(game) {
|
|
gameState.fen = game.fen;
|
|
gameState.turn = game.turn;
|
|
gameState.state = game.state;
|
|
gameState.moveList = game.moves || [];
|
|
|
|
renderBoardFromFEN(game.fen);
|
|
updateTurnIndicator(game.state, game.turn);
|
|
|
|
// Clear previous checkmate indicators
|
|
document.querySelectorAll('.mated-king').forEach(el => {
|
|
el.classList.remove('mated-king');
|
|
});
|
|
|
|
// Highlight last move
|
|
document.querySelectorAll('.last-move-from, .last-move-to').forEach(el => {
|
|
el.classList.remove('last-move-from', 'last-move-to');
|
|
});
|
|
|
|
if (game.lastMove && game.lastMove.move) {
|
|
const from = game.lastMove.move.substring(0, 2);
|
|
const to = game.lastMove.move.substring(2, 4);
|
|
const fromEl = document.querySelector(`[data-square="${from}"]`);
|
|
const toEl = document.querySelector(`[data-square="${to}"]`);
|
|
if (fromEl) fromEl.classList.add('last-move-from');
|
|
if (toEl) toEl.classList.add('last-move-to');
|
|
}
|
|
|
|
// Update FEN display
|
|
document.getElementById('fen-display').textContent = game.fen || '-';
|
|
|
|
// Update move history
|
|
renderMoveHistory(game.moves || []);
|
|
|
|
// Update undo button
|
|
document.getElementById('undo-btn').disabled = !game.moves || game.moves.length < 2;
|
|
|
|
// Handle checkmate visually
|
|
if (game.state === 'white wins' || game.state === 'black wins') {
|
|
markMatedKing(game);
|
|
}
|
|
}
|
|
|
|
function markMatedKing(game) {
|
|
// Find and mark the mated king
|
|
const matedColor = game.state === 'white wins' ? 'b' : 'w';
|
|
document.querySelectorAll('.square').forEach(square => {
|
|
if (square.dataset.pieceType === 'k' && square.dataset.pieceColor === matedColor) {
|
|
square.classList.add('mated-king');
|
|
}
|
|
});
|
|
}
|
|
|
|
function isGameOver(state) {
|
|
return ['white wins', 'black wins', 'stalemate', 'draw'].includes(state);
|
|
}
|
|
|
|
function getGameOverText(state) {
|
|
switch(state) {
|
|
case 'white wins': return 'White Wins';
|
|
case 'black wins': return 'Black Wins';
|
|
case 'stalemate': return 'Stalemate';
|
|
case 'draw': return 'Draw';
|
|
default: return state;
|
|
}
|
|
} |