Files
acht-damen-tuerme-problem/app/static/js/dashboard.js
T

1163 lines
35 KiB
JavaScript

const DEFAULT_BOARD_SIZE = 8;
const MIN_BOARD_SIZE = 4;
const MAX_BOARD_SIZE = 13;
const EMPTY_CELL = -1;
const DEFAULT_SOLVER_MESSAGE = "Bereite einen Ablauf vor und spiele ihn Schritt fuer Schritt ab.";
const GAME_STORAGE_KEY = "eight-queens-dashboard-session-v1";
let mode = "queens";
let boardSize = DEFAULT_BOARD_SIZE;
let pendingBoardSize = DEFAULT_BOARD_SIZE;
let board = createEmptyBoard(boardSize);
let stepCount = 0;
let elapsedBeforeTimerStartMs = 0;
let timerStartedAtMs = Date.now();
let gameTimerId = null;
let isSolved = false;
let solverSteps = [];
let solverStepIndex = -1;
let solverTimerId = null;
let solverSpeedMs = 320;
let solverLoading = false;
let solverRequestId = 0;
let currentSolverHighlight = null;
const boardDiv = document.getElementById("board");
const statusMessage = document.getElementById("statusMessage");
const queenList = document.getElementById("queenList");
const stepCounterValue = document.getElementById("stepCounterValue");
const timerValue = document.getElementById("timerValue");
const gameProgressState = document.getElementById("gameProgressState");
const btnQueens = document.getElementById("btnQueens");
const btnRooks = document.getElementById("btnRooks");
const btnPrepareSolve = document.getElementById("btnPrepareSolve");
const btnInstantSolve = document.getElementById("btnInstantSolve");
const btnNextStep = document.getElementById("btnNextStep");
const btnPlayPause = document.getElementById("btnPlayPause");
const solverMessage = document.getElementById("solverMessage");
const solverStepInfo = document.getElementById("solverStepInfo");
const solverSpeedInput = document.getElementById("solverSpeedInput");
const solverSpeedValue = document.getElementById("solverSpeedValue");
const settingsSidebar = document.getElementById("settingsSidebar");
const sidebarBackdrop = document.getElementById("sidebarBackdrop");
const saveSidebar = document.getElementById("saveSidebar");
const saveBackdrop = document.getElementById("saveBackdrop");
const savePointsSidebar = document.getElementById("savePointsSidebar");
const savePointsBackdrop = document.getElementById("savePointsBackdrop");
const boardSizeInput = document.getElementById("boardSizeInput");
const boardSizeValue = document.getElementById("boardSizeValue");
const boardSizeValueMirror = document.getElementById("boardSizeValueMirror");
const sidebarBoardSizeValue = document.getElementById("sidebarBoardSizeValue");
const sidebarBoardSizeValueMirror = document.getElementById("sidebarBoardSizeValueMirror");
const savePointsList = document.getElementById("savePointsList");
const saveNameInput = document.getElementById("saveNameInput");
const saveNoteInput = document.getElementById("saveNoteInput");
const saveFavoriteInput = document.getElementById("saveFavoriteInput");
const savePointModeFilter = document.getElementById("savePointModeFilter");
const savePointSizeFilter = document.getElementById("savePointSizeFilter");
const savePointSortFilter = document.getElementById("savePointSortFilter");
const savePointFavoritesOnly = document.getElementById("savePointFavoritesOnly");
const timeHistoryTableBody = document.getElementById("timeHistoryTableBody");
const infoModal = document.getElementById("infoModal");
const infoModalBackdrop = document.getElementById("infoModalBackdrop");
function createEmptyBoard(size) {
return Array(size).fill(EMPTY_CELL);
}
function clampBoardSize(size) {
return Math.min(MAX_BOARD_SIZE, Math.max(MIN_BOARD_SIZE, Number(size)));
}
function getColumnLabel(index) {
return String.fromCharCode(65 + index);
}
function sanitizeBoard(candidateBoard, size) {
if (!Array.isArray(candidateBoard) || candidateBoard.length !== size) {
return createEmptyBoard(size);
}
return candidateBoard.map((value) => {
const numericValue = Number(value);
if (!Number.isInteger(numericValue)) {
return EMPTY_CELL;
}
return numericValue >= 0 && numericValue < size ? numericValue : EMPTY_CELL;
});
}
function formatDuration(totalSeconds) {
const safeSeconds = Math.max(0, Number(totalSeconds) || 0);
const hours = Math.floor(safeSeconds / 3600);
const minutes = Math.floor((safeSeconds % 3600) / 60);
const seconds = safeSeconds % 60;
return [hours, minutes, seconds]
.map((value) => String(value).padStart(2, "0"))
.join(":");
}
function getElapsedMilliseconds() {
if (isSolved) {
return elapsedBeforeTimerStartMs;
}
return elapsedBeforeTimerStartMs + Math.max(0, Date.now() - timerStartedAtMs);
}
function persistCurrentSession() {
try {
window.localStorage.setItem(
GAME_STORAGE_KEY,
JSON.stringify({
mode,
boardSize,
board,
stepCount,
elapsedMs: getElapsedMilliseconds(),
isSolved
})
);
} catch (error) {
// Ignore unavailable storage so the game keeps working normally.
}
}
function updateProgressDisplay() {
stepCounterValue.textContent = String(stepCount);
timerValue.textContent = formatDuration(Math.floor(getElapsedMilliseconds() / 1000));
gameProgressState.textContent = isSolved ? "Geloest" : "Laeuft";
gameProgressState.style.color = isSolved ? "#15803d" : "#1d4ed8";
}
function stopGameTimer() {
if (gameTimerId !== null) {
window.clearInterval(gameTimerId);
gameTimerId = null;
}
}
function startGameTimer() {
stopGameTimer();
if (isSolved) {
updateProgressDisplay();
persistCurrentSession();
return;
}
timerStartedAtMs = Date.now();
gameTimerId = window.setInterval(() => {
updateProgressDisplay();
persistCurrentSession();
}, 1000);
updateProgressDisplay();
persistCurrentSession();
}
function resetProgress({ stepCountValue = 0, elapsedMs = 0, solved = false } = {}) {
stepCount = Math.max(0, Number(stepCountValue) || 0);
elapsedBeforeTimerStartMs = Math.max(0, Number(elapsedMs) || 0);
isSolved = Boolean(solved);
timerStartedAtMs = Date.now();
if (isSolved) {
stopGameTimer();
updateProgressDisplay();
persistCurrentSession();
return;
}
startGameTimer();
}
function ensureFreshRunAfterSolvedBoard() {
if (!isSolved) {
return;
}
resetProgress();
}
function updateModeButtons() {
btnQueens.classList.toggle("active", mode === "queens");
btnRooks.classList.toggle("active", mode === "rooks");
}
function updateBoardSizeDisplays(size) {
boardSizeValue.textContent = size;
boardSizeValueMirror.textContent = size;
sidebarBoardSizeValue.textContent = size;
sidebarBoardSizeValueMirror.textContent = size;
boardSizeInput.value = size;
}
function setStatus(message = "", color = "") {
statusMessage.textContent = message;
statusMessage.style.color = color;
}
function setSolverMessage(message = DEFAULT_SOLVER_MESSAGE) {
solverMessage.textContent = message;
}
function updateSolverSpeed(rawValue) {
solverSpeedMs = Number(rawValue);
solverSpeedInput.value = String(solverSpeedMs);
solverSpeedValue.textContent = `${solverSpeedMs} ms`;
if (isSolverPlaying()) {
stopSolverPlayback(false);
scheduleNextSolverPlaybackStep();
}
}
function updateBoardLayout() {
const cellSize = Math.max(32, Math.min(60, Math.floor(480 / boardSize)));
boardDiv.style.setProperty("--board-size", boardSize);
boardDiv.style.setProperty("--cell-size", `${cellSize}px`);
}
function isSolverPlaying() {
return solverTimerId !== null;
}
function hasPreparedSolverTrace() {
return solverSteps.length > 0;
}
function hasCompletedSolverTrace() {
return hasPreparedSolverTrace() && solverStepIndex >= solverSteps.length - 1;
}
function stopSolverPlayback(refreshControls = true) {
if (solverTimerId !== null) {
window.clearTimeout(solverTimerId);
solverTimerId = null;
}
if (refreshControls) {
updateSolverControls();
}
}
function updateSolverControls() {
const currentStep = Math.max(0, solverStepIndex + 1);
btnPrepareSolve.disabled = solverLoading;
btnInstantSolve.disabled = solverLoading;
btnNextStep.disabled = solverLoading || hasCompletedSolverTrace();
btnPlayPause.disabled = solverLoading;
btnPrepareSolve.textContent = solverLoading ? "Preparing..." : "Solve Step-by-Step";
if (isSolverPlaying()) {
btnPlayPause.textContent = "Pause";
} else if (hasCompletedSolverTrace()) {
btnPlayPause.textContent = "Replay Animation";
} else {
btnPlayPause.textContent = "Play Animation";
}
solverStepInfo.textContent = `Schritt ${currentStep} / ${solverSteps.length}`;
}
function discardSolverTrace(message = DEFAULT_SOLVER_MESSAGE) {
solverRequestId += 1;
solverLoading = false;
stopSolverPlayback(false);
solverSteps = [];
solverStepIndex = -1;
currentSolverHighlight = null;
setSolverMessage(message);
updateSolverControls();
}
function rewindSolverTrace() {
stopSolverPlayback(false);
solverStepIndex = -1;
currentSolverHighlight = null;
board = createEmptyBoard(boardSize);
setSolverMessage("Ablauf zurueckgesetzt. Starte die Animation erneut oder gehe weiter mit Next Step.");
drawBoard();
updateSolverControls();
}
function setMode(newMode) {
if (mode === newMode) {
return;
}
mode = newMode;
updateModeButtons();
resetBoard({
statusMessageText: `${getPieceLabel(mode)}-Modus aktiviert.`,
statusColor: "#2563eb",
solverMessageText: `${getPieceLabel(mode)}-Solver bereit. ${DEFAULT_SOLVER_MESSAGE}`
});
}
function closeAllPanels() {
toggleSidebar(false);
toggleSavePanel(false);
toggleSavePointsPanel(false);
toggleInfoModal(false);
}
function getConflicts(selectedBoard = board, selectedMode = mode) {
const conflicts = [];
for (let rowA = 0; rowA < boardSize; rowA++) {
if (selectedBoard[rowA] === EMPTY_CELL) {
continue;
}
for (let rowB = rowA + 1; rowB < boardSize; rowB++) {
if (selectedBoard[rowB] === EMPTY_CELL) {
continue;
}
const colA = selectedBoard[rowA];
const colB = selectedBoard[rowB];
const sameColumn = colA === colB;
const sameDiagonal = Math.abs(colA - colB) === Math.abs(rowA - rowB);
const hasConflict = selectedMode === "rooks" ? sameColumn : sameColumn || sameDiagonal;
if (hasConflict) {
conflicts.push([rowA, colA], [rowB, colB]);
}
}
}
return conflicts;
}
function isBoardSolved(selectedBoard = board, selectedMode = mode) {
const allPlaced = selectedBoard.every((col) => col !== EMPTY_CELL);
return allPlaced && getConflicts(selectedBoard, selectedMode).length === 0;
}
function finishSolvedRun() {
if (isSolved) {
return;
}
elapsedBeforeTimerStartMs = getElapsedMilliseconds();
isSolved = true;
stopGameTimer();
updateProgressDisplay();
persistCurrentSession();
}
function checkSolution() {
const allPlaced = board.every((col) => col !== EMPTY_CELL);
if (!allPlaced) {
setStatus("Noch nicht alle Figuren platziert.", "#d97706");
return;
}
if (getConflicts().length > 0) {
setStatus("Es gibt Konflikte auf dem Brett.", "red");
return;
}
finishSolvedRun();
setStatus(`Perfekt geloest in ${formatDuration(Math.floor(getElapsedMilliseconds() / 1000))}.`, "green");
}
function drawBoard() {
boardDiv.innerHTML = "";
boardDiv.className = "board-grid";
updateBoardLayout();
const conflicts = getConflicts();
const highlight = currentSolverHighlight;
for (let row = -1; row < boardSize; row++) {
for (let col = -1; col < boardSize; col++) {
const cell = document.createElement("div");
if (row === -1 && col === -1) {
cell.classList.add("label");
} else if (row === -1) {
cell.textContent = getColumnLabel(col);
cell.classList.add("label");
} else if (col === -1) {
cell.textContent = boardSize - row;
cell.classList.add("label");
} else {
cell.classList.add("cell", (row + col) % 2 === 0 ? "white" : "black");
if (highlight && highlight.row === row && highlight.col === col) {
cell.classList.add(
highlight.type === "remove"
? "solver-remove"
: highlight.type === "solution"
? "solver-solution"
: "solver-place"
);
}
if (board[row] === col) {
cell.textContent = mode === "queens" ? "♛" : "♜";
if (conflicts.some(([conflictRow, conflictCol]) => conflictRow === row && conflictCol === col)) {
cell.classList.add("invalid");
}
}
cell.onclick = () => placeQueen(row, col);
}
boardDiv.appendChild(cell);
}
}
updateQueenList();
}
function placeQueen(row, col) {
if (solverLoading) {
return;
}
ensureFreshRunAfterSolvedBoard();
if (hasPreparedSolverTrace() || isSolverPlaying()) {
discardSolverTrace("Solver-Ablauf verworfen, weil das Brett manuell geaendert wurde.");
setStatus("Solver-Ablauf verworfen. Bereite ihn bei Bedarf neu vor.", "#d97706");
} else {
setStatus();
}
currentSolverHighlight = null;
board[row] = board[row] === col ? EMPTY_CELL : col;
stepCount += 1;
drawBoard();
updateProgressDisplay();
if (isBoardSolved()) {
finishSolvedRun();
setStatus(`Perfekt geloest in ${formatDuration(Math.floor(getElapsedMilliseconds() / 1000))}.`, "green");
} else {
persistCurrentSession();
}
}
function previewBoardSize(size) {
pendingBoardSize = clampBoardSize(size);
sidebarBoardSizeValue.textContent = pendingBoardSize;
sidebarBoardSizeValueMirror.textContent = pendingBoardSize;
}
function applyBoardSize() {
boardSize = pendingBoardSize;
discardSolverTrace(`${getPieceLabel(mode)}-Solver bereit. ${DEFAULT_SOLVER_MESSAGE}`);
board = createEmptyBoard(boardSize);
currentSolverHighlight = null;
resetProgress();
updateBoardSizeDisplays(boardSize);
setStatus(`Brettgroesse auf ${boardSize} x ${boardSize} gesetzt.`, "#2563eb");
drawBoard();
toggleSidebar(false);
}
function toggleSidebar(forceOpen) {
const shouldOpen = typeof forceOpen === "boolean" ? forceOpen : !settingsSidebar.classList.contains("open");
if (shouldOpen) {
toggleSavePanel(false);
toggleSavePointsPanel(false);
}
settingsSidebar.classList.toggle("open", shouldOpen);
sidebarBackdrop.classList.toggle("visible", shouldOpen);
settingsSidebar.setAttribute("aria-hidden", String(!shouldOpen));
}
function toggleSavePanel(forceOpen) {
const shouldOpen = typeof forceOpen === "boolean" ? forceOpen : !saveSidebar.classList.contains("open");
if (shouldOpen) {
toggleSidebar(false);
toggleSavePointsPanel(false);
}
saveSidebar.classList.toggle("open", shouldOpen);
saveBackdrop.classList.toggle("visible", shouldOpen);
saveSidebar.setAttribute("aria-hidden", String(!shouldOpen));
}
function toggleSavePointsPanel(forceOpen) {
const shouldOpen = typeof forceOpen === "boolean" ? forceOpen : !savePointsSidebar.classList.contains("open");
if (shouldOpen) {
toggleSidebar(false);
toggleSavePanel(false);
}
savePointsSidebar.classList.toggle("open", shouldOpen);
savePointsBackdrop.classList.toggle("visible", shouldOpen);
savePointsSidebar.setAttribute("aria-hidden", String(!shouldOpen));
}
function toggleInfoModal(forceOpen) {
const shouldOpen = typeof forceOpen === "boolean" ? forceOpen : !infoModal.classList.contains("open");
infoModal.classList.toggle("open", shouldOpen);
infoModalBackdrop.classList.toggle("visible", shouldOpen);
infoModal.setAttribute("aria-hidden", String(!shouldOpen));
}
function getPieceLabel(selectedMode) {
return selectedMode === "queens" ? "Dame" : "Turm";
}
function getPlacedPieceCount() {
return board.filter((col) => col !== EMPTY_CELL).length;
}
function resetSaveForm() {
saveNameInput.value = `${getPieceLabel(mode)} ${boardSize}x${boardSize} - ${getPlacedPieceCount()} gesetzt`;
saveNoteInput.value = "";
saveFavoriteInput.checked = false;
}
function openSavePanel() {
resetSaveForm();
toggleSavePanel(true);
}
function getBoardPreview(savedBoard, limit = 4) {
const preview = [];
for (let row = 0; row < savedBoard.length; row++) {
if (savedBoard[row] === EMPTY_CELL) {
continue;
}
preview.push(`${getColumnLabel(savedBoard[row])}${savedBoard.length - row}`);
if (preview.length === limit) {
break;
}
}
return preview.length > 0 ? preview.join(", ") : "Noch keine Figuren gesetzt";
}
function getSavePointFilters() {
const params = new URLSearchParams();
if (savePointModeFilter.value !== "all") {
params.set("mode", savePointModeFilter.value);
}
if (savePointSizeFilter.value !== "all") {
params.set("board_size", savePointSizeFilter.value);
}
params.set("sort", savePointSortFilter.value);
if (savePointFavoritesOnly.checked) {
params.set("favorites_only", "true");
}
return params.toString();
}
function createSavePointActionButton(label, className, onClick) {
const button = document.createElement("button");
button.className = className;
button.type = "button";
button.textContent = label;
button.onclick = onClick;
return button;
}
function getModeLabel(selectedMode) {
return selectedMode === "rooks" ? "Tuerme" : "Damen";
}
function renderSavePoints(savePoints) {
savePointsList.innerHTML = "";
if (savePoints.length === 0) {
savePointsList.innerHTML = '<p class="sidebar-hint">Keine Speicherstaende fuer diese Filter gefunden.</p>';
return;
}
for (const savePoint of savePoints) {
const item = document.createElement("article");
const title = document.createElement("h4");
const createdAt = document.createElement("p");
const updatedAt = document.createElement("p");
const boardMeta = document.createElement("p");
const preview = document.createElement("p");
const note = document.createElement("p");
const actions = document.createElement("div");
item.className = "save-point-card";
title.textContent = `${savePoint.is_favorite ? "★ " : ""}${savePoint.save_name}`;
createdAt.className = "save-point-meta";
createdAt.textContent = `Erstellt: ${savePoint.created_at}`;
updatedAt.className = "save-point-meta";
updatedAt.textContent = `Aktualisiert: ${savePoint.updated_at}`;
boardMeta.className = "save-point-meta";
boardMeta.textContent = `${getPieceLabel(savePoint.mode)} | ${savePoint.board_size} x ${savePoint.board_size} | ${savePoint.pieces_placed}/${savePoint.board_size} gesetzt`;
preview.className = "save-point-preview";
preview.textContent = `Vorschau: ${getBoardPreview(savePoint.board)}`;
note.className = "save-point-note";
note.textContent = savePoint.save_note ? `Notiz: ${savePoint.save_note}` : "Notiz: Keine Notiz";
actions.className = "save-point-actions";
const progressMeta = document.createElement("p");
progressMeta.className = "save-point-meta";
progressMeta.textContent = `Schritte: ${savePoint.step_count || 0} | Zeit: ${formatDuration(savePoint.elapsed_seconds)} | Status: ${savePoint.is_solved ? "Geloest" : "Offen"}`;
actions.appendChild(createSavePointActionButton("Laden", "btn", () => loadSavePoint(savePoint.id)));
actions.appendChild(createSavePointActionButton(
savePoint.is_favorite ? "Favorit entfernen" : "Als Favorit",
"btn secondary",
() => toggleSavePointFavorite(savePoint.id)
));
actions.appendChild(createSavePointActionButton("Loeschen", "btn ghost", () => deleteSavePoint(savePoint.id)));
item.appendChild(title);
item.appendChild(createdAt);
item.appendChild(updatedAt);
item.appendChild(boardMeta);
item.appendChild(progressMeta);
item.appendChild(preview);
item.appendChild(note);
item.appendChild(actions);
savePointsList.appendChild(item);
}
}
function renderTimeHistory(savePoints) {
timeHistoryTableBody.innerHTML = "";
if (savePoints.length === 0) {
timeHistoryTableBody.innerHTML = '<tr><td colspan="7" class="history-empty">Noch keine gespeicherten Zeiten vorhanden.</td></tr>';
return;
}
for (const savePoint of savePoints) {
const row = document.createElement("tr");
const values = [
`${savePoint.is_favorite ? "★ " : ""}${savePoint.save_name}`,
getModeLabel(savePoint.mode),
`${savePoint.board_size} x ${savePoint.board_size}`,
String(savePoint.step_count || 0),
formatDuration(savePoint.elapsed_seconds),
savePoint.is_solved ? "Geloest" : "Offen",
savePoint.updated_at
];
for (const value of values) {
const cell = document.createElement("td");
cell.textContent = value;
row.appendChild(cell);
}
timeHistoryTableBody.appendChild(row);
}
}
async function refreshSavePoints() {
const queryString = getSavePointFilters();
const response = await fetch(`/save_points${queryString ? `?${queryString}` : ""}`);
const savePoints = await response.json();
renderSavePoints(savePoints);
}
async function refreshTimeHistory() {
const response = await fetch("/save_points?sort=updated");
if (!response.ok) {
return;
}
const savePoints = await response.json();
renderTimeHistory(savePoints);
}
async function openSavePointsPanel() {
await refreshSavePoints();
toggleSavePointsPanel(true);
}
function applyLoadedGame(data) {
discardSolverTrace(`${getPieceLabel(data.mode || "queens")}-Solver bereit. ${DEFAULT_SOLVER_MESSAGE}`);
const restoredBoardSize = Array.isArray(data.board) ? clampBoardSize(data.board.length) : DEFAULT_BOARD_SIZE;
boardSize = restoredBoardSize;
pendingBoardSize = boardSize;
mode = data.mode === "rooks" ? "rooks" : "queens";
board = sanitizeBoard(data.board, boardSize);
currentSolverHighlight = null;
resetProgress({
stepCountValue: data.step_count,
elapsedMs: Number(data.elapsed_seconds || 0) * 1000,
solved: data.is_solved || isBoardSolved(board, mode)
});
updateModeButtons();
updateBoardSizeDisplays(boardSize);
drawBoard();
updateProgressDisplay();
persistCurrentSession();
}
function applySolverStep(step) {
board = sanitizeBoard(step.board, boardSize);
if (Number.isInteger(step.row) && Number.isInteger(step.col)) {
currentSolverHighlight = {
row: step.row,
col: step.col,
type: step.type
};
} else if (step.type === "solution" && solverStepIndex > 0) {
const previousStep = solverSteps[solverStepIndex - 1];
currentSolverHighlight = Number.isInteger(previousStep.row) && Number.isInteger(previousStep.col)
? {
row: previousStep.row,
col: previousStep.col,
type: "solution"
}
: null;
} else {
currentSolverHighlight = null;
}
setSolverMessage(step.message || DEFAULT_SOLVER_MESSAGE);
drawBoard();
persistCurrentSession();
updateSolverControls();
}
function advanceSolverStep() {
if (!hasPreparedSolverTrace() || hasCompletedSolverTrace()) {
stopSolverPlayback(false);
updateSolverControls();
return false;
}
solverStepIndex += 1;
applySolverStep(solverSteps[solverStepIndex]);
if (hasCompletedSolverTrace()) {
finishSolvedRun();
stopSolverPlayback(false);
setStatus(`Loesung fuer ${boardSize} x ${boardSize} Schritt fuer Schritt aufgebaut.`, "green");
updateSolverControls();
}
return true;
}
function scheduleNextSolverPlaybackStep() {
stopSolverPlayback(false);
solverTimerId = window.setTimeout(() => {
solverTimerId = null;
const advanced = advanceSolverStep();
if (advanced && !hasCompletedSolverTrace()) {
scheduleNextSolverPlaybackStep();
return;
}
updateSolverControls();
}, solverSpeedMs);
updateSolverControls();
}
function startSolverPlayback(stepImmediately = true) {
if (!hasPreparedSolverTrace() || hasCompletedSolverTrace()) {
updateSolverControls();
return;
}
if (stepImmediately) {
const advanced = advanceSolverStep();
if (!advanced || hasCompletedSolverTrace()) {
updateSolverControls();
return;
}
}
scheduleNextSolverPlaybackStep();
}
async function prepareSolutionTrace() {
const endpoint = mode === "rooks" ? "/solve_rooks_trace" : "/solve_trace";
const requestId = ++solverRequestId;
solverLoading = true;
stopSolverPlayback(false);
solverSteps = [];
solverStepIndex = -1;
currentSolverHighlight = null;
setSolverMessage(`Berechne ${getPieceLabel(mode)}-Ablauf fuer ${boardSize} x ${boardSize}...`);
setStatus(`Solver berechnet die Schritte fuer ${boardSize} x ${boardSize}.`, "#2563eb");
updateSolverControls();
try {
const response = await fetch(`${endpoint}?size=${boardSize}`);
if (!response.ok) {
throw new Error("trace request failed");
}
const trace = await response.json();
if (requestId !== solverRequestId) {
return false;
}
solverSteps = Array.isArray(trace.steps) ? trace.steps : [];
solverStepIndex = -1;
board = Array.isArray(trace.initial_board) ? trace.initial_board.slice() : createEmptyBoard(boardSize);
currentSolverHighlight = null;
if (!trace.solved || solverSteps.length === 0) {
setSolverMessage("Keine Loesung gefunden.");
setStatus("Keine Loesung fuer dieses Brett gefunden.", "red");
drawBoard();
persistCurrentSession();
return false;
}
setSolverMessage(
mode === "queens"
? `Ablauf bereit mit ${solverSteps.length} Schritten. Nutze Next Step oder Play Animation, um das Backtracking zu verfolgen.`
: `Ablauf bereit mit ${solverSteps.length} Schritten. Nutze Next Step oder starte die Animation.`
);
setStatus("Solver-Ablauf bereit. Nutze Next Step oder Play Animation.", "#2563eb");
drawBoard();
return true;
} catch (error) {
if (requestId !== solverRequestId) {
return false;
}
setSolverMessage("Der Solver-Ablauf konnte nicht geladen werden.");
setStatus("Der Solver-Ablauf konnte nicht geladen werden.", "red");
return false;
} finally {
if (requestId === solverRequestId) {
solverLoading = false;
updateSolverControls();
}
}
}
async function nextSolverStep() {
if (solverLoading) {
return;
}
if (!hasPreparedSolverTrace()) {
const prepared = await prepareSolutionTrace();
if (!prepared) {
return;
}
}
if (isSolverPlaying()) {
stopSolverPlayback(false);
}
if (!advanceSolverStep()) {
setStatus("Der Solver-Ablauf ist bereits abgeschlossen.", "#2563eb");
}
}
async function toggleSolverPlayback() {
if (solverLoading) {
return;
}
if (isSolverPlaying()) {
stopSolverPlayback();
setStatus("Solver-Animation pausiert.", "#2563eb");
return;
}
if (!hasPreparedSolverTrace()) {
const prepared = await prepareSolutionTrace();
if (!prepared) {
return;
}
}
if (hasCompletedSolverTrace()) {
rewindSolverTrace();
}
setStatus("Solver-Animation laeuft.", "#2563eb");
startSolverPlayback(true);
}
async function solve() {
await prepareSolutionTrace();
}
async function instantSolve() {
if (solverLoading) {
return;
}
const endpoint = mode === "rooks" ? "/solve_rooks" : "/solve";
const requestId = ++solverRequestId;
solverLoading = true;
stopSolverPlayback(false);
solverSteps = [];
solverStepIndex = -1;
currentSolverHighlight = null;
setSolverMessage(`Lade sofortige ${getPieceLabel(mode)}-Loesung fuer ${boardSize} x ${boardSize}...`);
setStatus(`Sofortige Loesung wird geladen.`, "#2563eb");
updateSolverControls();
try {
const response = await fetch(`${endpoint}?size=${boardSize}`);
if (!response.ok) {
throw new Error("instant solve request failed");
}
const solution = await response.json();
if (requestId !== solverRequestId) {
return;
}
board = mode === "queens" && Array.isArray(solution[0]) ? solution[0].slice() : solution.slice();
currentSolverHighlight = null;
finishSolvedRun();
setSolverMessage("Sofortige Loesung geladen. Starte Solve Step-by-Step, wenn du den Ablauf sehen moechtest.");
setStatus(`Loesung fuer ${boardSize} x ${boardSize} sofort geladen.`, "green");
drawBoard();
persistCurrentSession();
} catch (error) {
if (requestId !== solverRequestId) {
return;
}
setSolverMessage("Die sofortige Loesung konnte nicht geladen werden.");
setStatus("Die sofortige Loesung konnte nicht geladen werden.", "red");
} finally {
if (requestId === solverRequestId) {
solverLoading = false;
updateSolverControls();
}
}
}
function resetBoard(options = {}) {
const {
statusMessageText = "",
statusColor = "",
solverMessageText = `${getPieceLabel(mode)}-Solver bereit. ${DEFAULT_SOLVER_MESSAGE}`
} = options;
discardSolverTrace(solverMessageText);
board = createEmptyBoard(boardSize);
currentSolverHighlight = null;
resetProgress();
if (statusMessageText) {
setStatus(statusMessageText, statusColor);
} else {
setStatus();
}
drawBoard();
}
function updateQueenList() {
queenList.innerHTML = "";
let count = 1;
for (let row = 0; row < boardSize; row++) {
if (board[row] === EMPTY_CELL) {
continue;
}
const col = board[row];
const position = `${getColumnLabel(col)}${boardSize - row}`;
const li = document.createElement("li");
li.textContent = `${mode === "queens" ? "Dame" : "Turm"} ${count}: ${position}`;
queenList.appendChild(li);
count += 1;
}
}
async function saveGame() {
const response = await fetch("/save", {
method: "POST",
headers: {
"Content-Type": "application/json"
},
body: JSON.stringify({
board,
mode,
boardSize,
saveName: saveNameInput.value,
saveNote: saveNoteInput.value,
isFavorite: saveFavoriteInput.checked,
stepCount,
elapsedSeconds: Math.floor(getElapsedMilliseconds() / 1000),
isSolved
})
});
if (!response.ok) {
setStatus("Der Speicherstand konnte nicht gespeichert werden.", "red");
return;
}
const data = await response.json();
toggleSavePanel(false);
await refreshSavePoints();
await refreshTimeHistory();
setStatus(`Speicherpunkt "${data.save_point.save_name}" gespeichert.`, "green");
}
async function loadGame() {
const response = await fetch("/load");
const data = await response.json();
applyLoadedGame(data);
}
async function loadSavePoint(savePointId) {
const response = await fetch(`/load/${savePointId}`);
if (!response.ok) {
setStatus("Dieser Speicherstand konnte nicht geladen werden.", "red");
return;
}
const data = await response.json();
applyLoadedGame(data);
setStatus(`Speicherpunkt "${data.save_name}" geladen.`, "green");
toggleSavePointsPanel(false);
}
async function toggleSavePointFavorite(savePointId) {
const response = await fetch(`/save_points/${savePointId}/favorite`, {
method: "POST"
});
if (!response.ok) {
setStatus("Favorit konnte nicht aktualisiert werden.", "red");
return;
}
await refreshSavePoints();
await refreshTimeHistory();
setStatus("Favoritenstatus aktualisiert.", "#2563eb");
}
async function deleteSavePoint(savePointId) {
const confirmed = window.confirm("Diesen Speicherpunkt wirklich loeschen?");
if (!confirmed) {
return;
}
const response = await fetch(`/save_points/${savePointId}`, {
method: "DELETE"
});
if (!response.ok) {
setStatus("Speicherpunkt konnte nicht geloescht werden.", "red");
return;
}
await refreshSavePoints();
await refreshTimeHistory();
setStatus("Speicherpunkt geloescht.", "#2563eb");
}
function restoreSessionFromStorage() {
try {
const rawSession = window.localStorage.getItem(GAME_STORAGE_KEY);
if (!rawSession) {
return false;
}
const savedSession = JSON.parse(rawSession);
const restoredBoardSize = clampBoardSize(savedSession.boardSize || DEFAULT_BOARD_SIZE);
const restoredMode = savedSession.mode === "rooks" ? "rooks" : "queens";
boardSize = restoredBoardSize;
pendingBoardSize = restoredBoardSize;
mode = restoredMode;
board = sanitizeBoard(savedSession.board, restoredBoardSize);
currentSolverHighlight = null;
updateModeButtons();
updateBoardSizeDisplays(boardSize);
drawBoard();
resetProgress({
stepCountValue: savedSession.stepCount,
elapsedMs: savedSession.elapsedMs,
solved: savedSession.isSolved || isBoardSolved(board, mode)
});
return true;
} catch (error) {
return false;
}
}
async function initializeDashboard() {
pendingBoardSize = boardSize;
updateModeButtons();
updateBoardSizeDisplays(boardSize);
updateSolverSpeed(solverSpeedMs);
setSolverMessage(`${getPieceLabel(mode)}-Solver bereit. ${DEFAULT_SOLVER_MESSAGE}`);
updateSolverControls();
if (!restoreSessionFromStorage()) {
resetProgress();
drawBoard();
}
updateProgressDisplay();
await refreshTimeHistory();
}
window.addEventListener("keydown", (event) => {
if (event.key === "Escape") {
closeAllPanels();
}
});
initializeDashboard();