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/*
* @licstart The following is the entire license notice for the
* JavaScript code in this page.
*
* Copyright (C) 2025 Runxi Yu
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS "AS IS" AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* @licend The above is the entire license notice
* for the JavaScript code in this page.
*/
document.addEventListener("DOMContentLoaded", async function() {
let challenge_b64 = document.body.dataset.identifier;
let difficulty = parseInt(document.body.dataset.difficulty);
let form = document.querySelector("form");
let field = form.querySelector("input[name='powxy']");
let status_el = document.getElementById("solver_status");
let identifier_bytes = Uint8Array.from(
atob(challenge_b64),
ch => ch.charCodeAt(0)
);
status_el.textContent = "Starting WebAssembly solver as a worker...";
let worker = new Worker("/.powxy/static/solver.js");
worker.onmessage = function(e) {
let { nonce, nonce_bytes } = e.data;
let nonce_str = String.fromCharCode(...nonce_bytes);
field.value = btoa(nonce_str);
status_el.textContent = "Challenge solved automatically in " + nonce + " iterations.";
};
worker.postMessage({ identifier_bytes, difficulty });
});
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