const constants = [
  'instance',
  '93703gBAUAn',
  '442816lLbold',
  'instantiate',
  '1ZFMVDM',
  '381193zsgNYQ',
  'check_flag',
  'result',
  'length',
  '48829pZIrMh',
  '648920pjyJsd',
  'copy_char',
  '21760lQoqpJ',
  'arrayBuffer',
  '1zBwHgR',
  'innerHTML',
  '615706OhnLTV',
  'Correct!',
  'getElementById',
  './index.wasm',
  'charCodeAt',
];

const getConst = function(addr, _seemingly_unused) {
    addr = addr - 0xac;
    let result = constants[addr];
    return result;
};

// Stack aligner of some sort?
(function() {
    while (!![]) {
        try {
            const result = parseInt(getConst(0xb7)) + parseInt(getConst(0xb0)) + -parseInt(getConst(0xc0)) * parseInt(getConst(0xbd)) + -parseInt(getConst(0xac)) + -parseInt(getConst(0xb3)) + parseInt(getConst(0xb5)) * parseInt(getConst(0xb1)) + -parseInt(getConst(0xbe));
            if (result === 0x5b4df) break;
            else constants['push'](constants['shift']());
        } catch (e) {
            constants['push'](constants['shift']());
        }
    }
}());

let exports;

// Load the WebAssembly module and get its exports
(async () => {
    let checkFlagWasm = await fetch('./index.wasm'),
        arrayBufferResult = await WebAssembly['instantiate'](await checkFlagWasm['arrayBuffer']()),
        arrayBufferResultInstance = arrayBufferResult['instance'];
    exports = arrayBufferResultInstance['exports'];
})();

function onButtonPress() {
    let value = document['getElementById']('input')['value'];
    const copy_char = exports['copy_char'];

    for (let i = 0x0; i < value['length']; i++) {
      const char_code = value['charCodeAt'](i);
      copy_char(char_code, i);
    }

    exports['copy_char'](0x0, value['length']), exports['check_flag']() == 0x1
      ? document['getElementById']('result')['innerHTML'] = 'Correct!'
      : document['getElementById']('result')['innerHTML'] = 'Incorrect!';
}