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// Run ./build web from the main folder before running this example.
// The necessary modules (including worker.mjs) will be built and / or moved
// to this folder when running ./build web.
var solveButton = document.getElementById("solveButton");
var scrField = document.getElementById("scrambleText");
var resultsLabel = document.getElementById("resultsLabel");
var resultsText = document.getElementById("results");
var solverSelector = document.getElementById("solverSelector");
var toggleLog = document.getElementById("toggleShowLog");
var logPane = document.getElementById("logPane");
var lastCallbackId = 0;
var callbacks = new Map(); // Values: { f: function, arg: object }
var worker = new Worker("./worker.mjs", { type: "module" });
worker.onmessage = (event) => {
if (event.data.command == "log") {
logPane.innerText += event.data.object;
console.log(event.data.object);
} else if (!callbacks.has(event.data.id)) {
console.log("[nissy app] Unknown callback " + event.data.id +
" for command " + event.data.command);
} else {
var callback = callbacks.get(event.data.id);
callbacks.delete(event.data.id);
callback.f(callback.arg, event.data.arg);
}
};
function updateResults(label, results, enable) {
resultsLabel.innerText = label;
resultsText.innerText = results;
solveButton.disable = !enable;
solverSelector.disable = !enable;
}
var logVisible = false;
toggleLog.addEventListener("click", () => {
logVisible = !logVisible;
if (logVisible) {
logPane.style.display = "block";
toggleLog.innerText = "Hide nissy log messages";
} else {
logPane.style.display = "none";
toggleLog.innerText = "Show nissy log messages";
}
});
solveButton.addEventListener("click", () => {
const solver = solverSelector.options[solverSelector.selectedIndex].value;
const scramble = scrField.value;
loadDataThenSolve(solver, scramble);
const solveCallbackId = ++lastCallbackId;
callbacks.set(solveCallbackId, {
f: (callbackArg, loadResult) => {
if (loadResult.success) {
startSolve(callbackArg.solver, callbackArg.scramble);
} else {
updateResults("", "", true);
}
},
arg: { solver: solver, scramble: scramble }
});
const downloadCallbackId = ++lastCallbackId;
});
function loadDataThenSolve(solver, scramble) {
updateResults("Loading solver " + solver + "...", "", false);
const callbackId = ++lastCallbackId;
callbacks.set(callbackId, {
f: (callbackArg, loadResult) => {
if (loadResult.success)
startSolve(callbackArg.solver, callbackArg.scramble);
else
askDownloadThenSolve(callbackArg.solver, callbackArg.scramble);
},
arg: { solver: solver, scramble: scramble }
});
worker.postMessage({
command: "load solver data",
id: callbackId,
arg: solver
});
}
function askDownloadThenSolve(solver, scramble) {
var confirmDiv = document.getElementById("confirmDownload");
var cancel = document.getElementById("confirmDownloadCancel");
var download = document.getElementById("confirmDownloadConfirm");
var generate = document.getElementById("confirmDownloadGenerate");
const cleanup = () => {
confirmDiv.style.display = "none";
// Remove event listeners by cloning the buttons
cancel.outerHTML = cancel.outerHTML;
download.outerHTML = download.outerHTML;
generate.outerHTML = generate.outerHTML;
};
updateResults("", "", false);
confirmDiv.style.display = "block";
cancel.addEventListener("click", cleanup);
download.addEventListener("click", () => {
cleanup();
downloadDataThenSolve(solver, scramble);
});
generate.addEventListener("click", () => {
cleanup();
generateDataThenSolve(solver, scramble);
});
}
const downloadDataThenSolve = (solver, scramble) =>
downloadOrGenerateThenSolve(solver, scramble, true);
const generateDataThenSolve = (solver, scramble) =>
downloadOrGenerateThenSolve(solver, scramble, false);
function downloadOrGenerateThenSolve(solver, scramble, download) {
const msg = download ? "Downloading data for " : "Generating data for ";
const command = download ? "download solver data" : "generate solver data";
updateResults(msg + solver + "...", "", false);
const callbackId = ++lastCallbackId;
callbacks.set(callbackId, {
f: (callbackArg, loadResult) => {
if (loadResult.success)
startSolve(callbackArg.solver, callbackArg.scramble);
else
updateResults("Failed", loadResult.message, true);
},
arg: { solver: solver, scramble: scramble }
});
worker.postMessage({
command: command,
id: callbackId,
arg: solver
});
}
function startSolve(solver, scramble) {
updateResults("Solving...", "", false);
const callbackId = ++lastCallbackId;
callbacks.set(callbackId, {
f: (callbackArg, solveResult) => {
if (solveResult.success) {
const n = solveResult.solutions.length;
const label = n == 0 ? "No solution found" :
("Found " + n + " solution" + (n == 1 ? "" : "s")) + ":";
const text = solveResult.solutions.join("\n");
updateResults(label, text, true);
} else {
updateResults("Unexpected error while solving!", "", true);
}
},
arg: "" // Currently unused
});
worker.postMessage({
command: "solve",
id: callbackId,
arg: {
solver: solver,
scramble: scramble,
minmoves: 0,
maxmoves: 20,
maxsolutions: 1,
optimal: 20,
threads: window.navigator.hardwareConcurrency,
}
});
}
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