495 lines
15 KiB
JavaScript
495 lines
15 KiB
JavaScript
const DEFAULT_BOARD_SIZE = 8;
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const MIN_BOARD_SIZE = 4;
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const MAX_BOARD_SIZE = 13;
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const EMPTY_CELL = -1;
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let mode = "queens";
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let boardSize = DEFAULT_BOARD_SIZE;
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let pendingBoardSize = DEFAULT_BOARD_SIZE;
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let board = createEmptyBoard(boardSize);
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const boardDiv = document.getElementById("board");
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const statusMessage = document.getElementById("statusMessage");
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const queenList = document.getElementById("queenList");
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const btnQueens = document.getElementById("btnQueens");
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const btnRooks = document.getElementById("btnRooks");
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const settingsSidebar = document.getElementById("settingsSidebar");
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const sidebarBackdrop = document.getElementById("sidebarBackdrop");
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const saveSidebar = document.getElementById("saveSidebar");
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const saveBackdrop = document.getElementById("saveBackdrop");
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const savePointsSidebar = document.getElementById("savePointsSidebar");
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const savePointsBackdrop = document.getElementById("savePointsBackdrop");
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const boardSizeInput = document.getElementById("boardSizeInput");
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const boardSizeValue = document.getElementById("boardSizeValue");
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const boardSizeValueMirror = document.getElementById("boardSizeValueMirror");
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const sidebarBoardSizeValue = document.getElementById("sidebarBoardSizeValue");
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const sidebarBoardSizeValueMirror = document.getElementById("sidebarBoardSizeValueMirror");
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const savePointsList = document.getElementById("savePointsList");
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const saveNameInput = document.getElementById("saveNameInput");
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const saveNoteInput = document.getElementById("saveNoteInput");
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const saveFavoriteInput = document.getElementById("saveFavoriteInput");
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const savePointModeFilter = document.getElementById("savePointModeFilter");
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const savePointSizeFilter = document.getElementById("savePointSizeFilter");
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const savePointSortFilter = document.getElementById("savePointSortFilter");
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const savePointFavoritesOnly = document.getElementById("savePointFavoritesOnly");
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function createEmptyBoard(size) {
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return Array(size).fill(EMPTY_CELL);
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}
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function clampBoardSize(size) {
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return Math.min(MAX_BOARD_SIZE, Math.max(MIN_BOARD_SIZE, Number(size)));
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}
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function getColumnLabel(index) {
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return String.fromCharCode(65 + index);
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}
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function updateModeButtons() {
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btnQueens.classList.toggle("active", mode === "queens");
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btnRooks.classList.toggle("active", mode === "rooks");
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}
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function updateBoardSizeDisplays(size) {
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boardSizeValue.textContent = size;
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boardSizeValueMirror.textContent = size;
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sidebarBoardSizeValue.textContent = size;
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sidebarBoardSizeValueMirror.textContent = size;
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boardSizeInput.value = size;
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}
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function setStatus(message = "", color = "") {
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statusMessage.textContent = message;
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statusMessage.style.color = color;
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}
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function updateBoardLayout() {
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const cellSize = Math.max(32, Math.min(60, Math.floor(480 / boardSize)));
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boardDiv.style.setProperty("--board-size", boardSize);
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boardDiv.style.setProperty("--cell-size", `${cellSize}px`);
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}
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function setMode(newMode) {
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mode = newMode;
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resetBoard();
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updateModeButtons();
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}
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function closeAllPanels() {
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toggleSidebar(false);
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toggleSavePanel(false);
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toggleSavePointsPanel(false);
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}
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function getConflicts() {
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const conflicts = [];
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for (let rowA = 0; rowA < boardSize; rowA++) {
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if (board[rowA] === EMPTY_CELL) {
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continue;
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}
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for (let rowB = rowA + 1; rowB < boardSize; rowB++) {
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if (board[rowB] === EMPTY_CELL) {
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continue;
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}
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const colA = board[rowA];
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const colB = board[rowB];
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const sameColumn = colA === colB;
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const sameDiagonal = Math.abs(colA - colB) === Math.abs(rowA - rowB);
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// Rooks only attack vertically, queens also attack diagonally.
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const hasConflict = mode === "rooks" ? sameColumn : sameColumn || sameDiagonal;
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if (hasConflict) {
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conflicts.push([rowA, colA], [rowB, colB]);
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}
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}
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}
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return conflicts;
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}
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function checkSolution() {
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const allPlaced = board.every((col) => col !== EMPTY_CELL);
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if (!allPlaced) {
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setStatus("❗ Noch nicht alle Figuren platziert.", "orange");
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return;
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}
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if (getConflicts().length > 0) {
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setStatus("❌ Es gibt Konflikte!", "red");
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return;
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}
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setStatus("🎉 Perfekt geloest!", "green");
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}
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function drawBoard() {
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boardDiv.innerHTML = "";
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boardDiv.className = "board-grid";
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updateBoardLayout();
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const conflicts = getConflicts();
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for (let row = -1; row < boardSize; row++) {
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for (let col = -1; col < boardSize; col++) {
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const cell = document.createElement("div");
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if (row === -1 && col === -1) {
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cell.classList.add("label");
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} else if (row === -1) {
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cell.textContent = getColumnLabel(col);
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cell.classList.add("label");
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} else if (col === -1) {
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cell.textContent = boardSize - row;
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cell.classList.add("label");
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} else {
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cell.classList.add("cell", (row + col) % 2 === 0 ? "white" : "black");
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if (board[row] === col) {
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cell.textContent = mode === "queens" ? "♛" : "♜";
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// Highlight pieces that are part of at least one conflict pair.
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if (conflicts.some(([conflictRow, conflictCol]) => conflictRow === row && conflictCol === col)) {
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cell.classList.add("invalid");
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}
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}
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cell.onclick = () => placeQueen(row, col);
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}
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boardDiv.appendChild(cell);
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}
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}
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updateQueenList();
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}
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function placeQueen(row, col) {
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board[row] = board[row] === col ? EMPTY_CELL : col;
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drawBoard();
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}
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function previewBoardSize(size) {
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pendingBoardSize = clampBoardSize(size);
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sidebarBoardSizeValue.textContent = pendingBoardSize;
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sidebarBoardSizeValueMirror.textContent = pendingBoardSize;
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}
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function applyBoardSize() {
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boardSize = pendingBoardSize;
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board = createEmptyBoard(boardSize);
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updateBoardSizeDisplays(boardSize);
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setStatus(`Brettgroesse auf ${boardSize} x ${boardSize} gesetzt.`, "#2563eb");
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drawBoard();
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toggleSidebar(false);
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}
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function toggleSidebar(forceOpen) {
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const shouldOpen = typeof forceOpen === "boolean" ? forceOpen : !settingsSidebar.classList.contains("open");
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if (shouldOpen) {
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toggleSavePanel(false);
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toggleSavePointsPanel(false);
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}
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settingsSidebar.classList.toggle("open", shouldOpen);
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sidebarBackdrop.classList.toggle("visible", shouldOpen);
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settingsSidebar.setAttribute("aria-hidden", String(!shouldOpen));
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}
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function toggleSavePanel(forceOpen) {
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const shouldOpen = typeof forceOpen === "boolean" ? forceOpen : !saveSidebar.classList.contains("open");
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if (shouldOpen) {
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toggleSidebar(false);
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toggleSavePointsPanel(false);
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}
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saveSidebar.classList.toggle("open", shouldOpen);
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saveBackdrop.classList.toggle("visible", shouldOpen);
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saveSidebar.setAttribute("aria-hidden", String(!shouldOpen));
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}
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function toggleSavePointsPanel(forceOpen) {
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const shouldOpen = typeof forceOpen === "boolean" ? forceOpen : !savePointsSidebar.classList.contains("open");
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if (shouldOpen) {
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toggleSidebar(false);
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toggleSavePanel(false);
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}
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savePointsSidebar.classList.toggle("open", shouldOpen);
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savePointsBackdrop.classList.toggle("visible", shouldOpen);
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savePointsSidebar.setAttribute("aria-hidden", String(!shouldOpen));
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}
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function getPieceLabel(selectedMode) {
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return selectedMode === "queens" ? "Dame" : "Turm";
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}
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function getPlacedPieceCount() {
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return board.filter((col) => col !== EMPTY_CELL).length;
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}
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function resetSaveForm() {
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saveNameInput.value = `${getPieceLabel(mode)} ${boardSize}x${boardSize} - ${getPlacedPieceCount()} gesetzt`;
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saveNoteInput.value = "";
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saveFavoriteInput.checked = false;
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}
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function openSavePanel() {
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resetSaveForm();
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toggleSavePanel(true);
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}
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function getBoardPreview(savedBoard, limit = 4) {
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const preview = [];
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for (let row = 0; row < savedBoard.length; row++) {
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if (savedBoard[row] === EMPTY_CELL) {
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continue;
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}
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preview.push(`${getColumnLabel(savedBoard[row])}${savedBoard.length - row}`);
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if (preview.length === limit) {
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break;
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}
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}
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return preview.length > 0 ? preview.join(", ") : "Noch keine Figuren gesetzt";
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}
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function getSavePointFilters() {
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const params = new URLSearchParams();
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if (savePointModeFilter.value !== "all") {
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params.set("mode", savePointModeFilter.value);
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}
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if (savePointSizeFilter.value !== "all") {
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params.set("board_size", savePointSizeFilter.value);
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}
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params.set("sort", savePointSortFilter.value);
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if (savePointFavoritesOnly.checked) {
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params.set("favorites_only", "true");
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}
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return params.toString();
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}
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function createSavePointActionButton(label, className, onClick) {
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const button = document.createElement("button");
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button.className = className;
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button.type = "button";
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button.textContent = label;
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button.onclick = onClick;
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return button;
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}
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function renderSavePoints(savePoints) {
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savePointsList.innerHTML = "";
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if (savePoints.length === 0) {
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savePointsList.innerHTML = '<p class="sidebar-hint">Keine Speicherstaende fuer diese Filter gefunden.</p>';
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return;
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}
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for (const savePoint of savePoints) {
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const item = document.createElement("article");
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const title = document.createElement("h4");
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const createdAt = document.createElement("p");
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const updatedAt = document.createElement("p");
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const boardMeta = document.createElement("p");
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const preview = document.createElement("p");
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const note = document.createElement("p");
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const actions = document.createElement("div");
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item.className = "save-point-card";
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title.textContent = `${savePoint.is_favorite ? "★ " : ""}${savePoint.save_name}`;
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createdAt.className = "save-point-meta";
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createdAt.textContent = `Erstellt: ${savePoint.created_at}`;
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updatedAt.className = "save-point-meta";
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updatedAt.textContent = `Aktualisiert: ${savePoint.updated_at}`;
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boardMeta.className = "save-point-meta";
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boardMeta.textContent = `${getPieceLabel(savePoint.mode)} | ${savePoint.board_size} x ${savePoint.board_size} | ${savePoint.pieces_placed}/${savePoint.board_size} gesetzt`;
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preview.className = "save-point-preview";
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preview.textContent = `Vorschau: ${getBoardPreview(savePoint.board)}`;
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note.className = "save-point-note";
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note.textContent = savePoint.save_note ? `Notiz: ${savePoint.save_note}` : "Notiz: Keine Notiz";
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actions.className = "save-point-actions";
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actions.appendChild(createSavePointActionButton("Laden", "btn", () => loadSavePoint(savePoint.id)));
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actions.appendChild(createSavePointActionButton(
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savePoint.is_favorite ? "Favorit entfernen" : "Als Favorit",
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"btn secondary",
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() => toggleSavePointFavorite(savePoint.id)
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));
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actions.appendChild(createSavePointActionButton("Loeschen", "btn ghost", () => deleteSavePoint(savePoint.id)));
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item.appendChild(title);
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item.appendChild(createdAt);
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item.appendChild(updatedAt);
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item.appendChild(boardMeta);
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item.appendChild(preview);
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item.appendChild(note);
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item.appendChild(actions);
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savePointsList.appendChild(item);
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}
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}
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async function refreshSavePoints() {
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const queryString = getSavePointFilters();
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const response = await fetch(`/save_points${queryString ? `?${queryString}` : ""}`);
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const savePoints = await response.json();
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renderSavePoints(savePoints);
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}
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async function openSavePointsPanel() {
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await refreshSavePoints();
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toggleSavePointsPanel(true);
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}
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function applyLoadedGame(data) {
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board = data.board;
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boardSize = Array.isArray(data.board) ? clampBoardSize(data.board.length) : DEFAULT_BOARD_SIZE;
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pendingBoardSize = boardSize;
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mode = data.mode;
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updateModeButtons();
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updateBoardSizeDisplays(boardSize);
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drawBoard();
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}
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async function solve() {
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const endpoint = mode === "rooks" ? "/solve_rooks" : "/solve";
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const response = await fetch(`${endpoint}?size=${boardSize}`);
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const solution = await response.json();
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// The queens endpoint may return multiple solutions; we display the first one.
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board = mode === "queens" && Array.isArray(solution[0]) ? solution[0] : solution;
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setStatus(`Loesung fuer ${boardSize} x ${boardSize} geladen.`, "green");
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drawBoard();
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}
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function resetBoard() {
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board = createEmptyBoard(boardSize);
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setStatus();
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drawBoard();
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}
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function updateQueenList() {
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queenList.innerHTML = "";
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let count = 1;
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for (let row = 0; row < boardSize; row++) {
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if (board[row] === EMPTY_CELL) {
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continue;
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}
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const col = board[row];
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const position = `${getColumnLabel(col)}${boardSize - row}`;
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const li = document.createElement("li");
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li.textContent = `${mode === "queens" ? "Dame" : "Turm"} ${count}: ${position}`;
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queenList.appendChild(li);
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count++;
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}
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}
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async function saveGame() {
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const response = await fetch("/save", {
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method: "POST",
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headers: {
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"Content-Type": "application/json"
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},
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body: JSON.stringify({
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board,
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mode,
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boardSize,
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saveName: saveNameInput.value,
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saveNote: saveNoteInput.value,
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isFavorite: saveFavoriteInput.checked
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})
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});
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if (!response.ok) {
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setStatus("❌ Der Speicherstand konnte nicht gespeichert werden.", "red");
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return;
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}
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const data = await response.json();
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toggleSavePanel(false);
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await refreshSavePoints();
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setStatus(`Speicherpunkt "${data.save_point.save_name}" gespeichert.`, "green");
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}
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async function loadGame() {
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const response = await fetch("/load");
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const data = await response.json();
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applyLoadedGame(data);
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}
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async function loadSavePoint(savePointId) {
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const response = await fetch(`/load/${savePointId}`);
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if (!response.ok) {
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setStatus("❌ Dieser Speicherstand konnte nicht geladen werden.", "red");
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return;
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}
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const data = await response.json();
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applyLoadedGame(data);
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setStatus(`Speicherpunkt "${data.save_name}" geladen.`, "green");
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toggleSavePointsPanel(false);
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}
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async function toggleSavePointFavorite(savePointId) {
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const response = await fetch(`/save_points/${savePointId}/favorite`, {
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method: "POST"
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});
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if (!response.ok) {
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setStatus("❌ Favorit konnte nicht aktualisiert werden.", "red");
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return;
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}
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await refreshSavePoints();
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setStatus("Favoritenstatus aktualisiert.", "#2563eb");
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}
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async function deleteSavePoint(savePointId) {
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const confirmed = window.confirm("Diesen Speicherpunkt wirklich loeschen?");
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if (!confirmed) {
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return;
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}
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const response = await fetch(`/save_points/${savePointId}`, {
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method: "DELETE"
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});
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if (!response.ok) {
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setStatus("❌ Speicherpunkt konnte nicht geloescht werden.", "red");
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return;
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}
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await refreshSavePoints();
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setStatus("Speicherpunkt geloescht.", "#2563eb");
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}
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pendingBoardSize = boardSize;
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updateModeButtons();
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updateBoardSizeDisplays(boardSize);
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drawBoard();
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