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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 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") {
console.log(event.data.object); // TODO
} 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);
callback.f(callback.arg, event.data.arg);
}
};
function updateResults(label, results, buttonState) {
resultsLabel.innerText = label;
resultsText.innerText = results;
solveButton.disable = !buttonState;
}
solveButton.addEventListener("click", () => {
updateResults("Loading solutions...", "", 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: solverSelector.options[solverSelector.selectedIndex].value,
scramble: scrField.value,
minmoves: 0,
maxmoves: 20,
maxsolutions: 1,
optimal: 20,
threads: window.navigator.hardwareConcurrency,
}
});
});
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