Investidor-V2/tools/simulator-cashflow-component-browser.mjs

// Isolated React component browser test. Requires Vite and Edge CDP on localhost.
import fs from 'node:fs';

const baseUrl =
    process.argv[2] ??
    'http://127.0.0.1:18117/tools/simulator-cashflow-preview.html';
const outputPath =
    process.argv[3] ??
    'docs/investmoz/simulations/simulator-cashflow-browser-2026-10-03.json';
const target = await (
    await fetch('http://127.0.0.1:9224/json/new?about:blank', { method: 'PUT' })
).json();
const ws = new WebSocket(target.webSocketDebuggerUrl);
await new Promise((resolve, reject) => {
    ws.addEventListener('open', resolve, { once: true });
    ws.addEventListener('error', reject, { once: true });
});

let nextId = 0;
const pending = new Map();
const exceptions = [];
const network = [];
ws.addEventListener('message', (event) => {
    const message = JSON.parse(event.data);
    if (message.method === 'Runtime.exceptionThrown')
        exceptions.push(message.params.exceptionDetails.text);
    if (message.method === 'Network.responseReceived')
        network.push({
            url: message.params.response.url,
            status: message.params.response.status,
        });
    if (!message.id) return;
    const request = pending.get(message.id);
    pending.delete(message.id);
    if (!request) return;
    if (message.error) request.reject(message.error);
    else request.resolve(message.result);
});
const send = (method, params = {}) =>
    new Promise((resolve, reject) => {
        const id = ++nextId;
        pending.set(id, { resolve, reject });
        ws.send(JSON.stringify({ id, method, params }));
    });
const evaluate = async (expression) => {
    const response = await send('Runtime.evaluate', {
        expression,
        returnByValue: true,
        awaitPromise: true,
    });
    if (response.exceptionDetails)
        throw new Error(
            response.exceptionDetails.exception?.description ??
                response.exceptionDetails.text,
        );
    return response.result?.value;
};
const waitFor = async (expression, description) => {
    for (let attempt = 0; attempt < 100; attempt++) {
        if (await evaluate(`Boolean(${expression})`)) return;
        await new Promise((resolve) => setTimeout(resolve, 100));
    }
    throw new Error(`Timed out waiting for ${description}`);
};

let report;
try {
    await send('Page.enable');
    await send('Runtime.enable');
    await send('Network.enable');
    await send('Page.navigate', { url: baseUrl });
    await waitFor(
        'document.querySelector(\'#cashflow-root section[aria-labelledby=\\"cashflow-title\\"]\')',
        'the rendered cashflow component',
    );

    const fixedMode = await evaluate(`(() => {
      const fixed = [...document.querySelectorAll('label')].find(label => label.innerText.includes('Valor mensal fixo'))?.querySelector('input[type="radio"]');
      const note = [...document.querySelectorAll('[role="note"]')].map(node => node.innerText).find(text => text.includes('saldo total')) ?? null;
      return { selected: fixed?.checked ?? false, monthlyInputs: [...document.querySelectorAll('label')].filter(label => label.innerText.includes('Imposto assumido por mês')).length, incompleteNote: note };
    })()`);

    const selectedSchedule = await evaluate(`(() => {
      const label = [...document.querySelectorAll('label')].find(item => item.innerText.includes('Calendário variável por mês'));
      const radio = label?.querySelector('input[type="radio"]');
      radio?.click();
      return Boolean(radio);
    })()`);
    if (!selectedSchedule)
        throw new Error('Monthly schedule option is missing.');
    await waitFor(
        "[...document.querySelectorAll('label')].filter(label => label.innerText.includes('Imposto assumido') && /mês \\d+/u.test(label.innerText)).length === 12",
        '12 labeled monthly assumption inputs',
    );

    const setMonth = async (month, value) =>
        evaluate(`(() => {
          const label = [...document.querySelectorAll('label')].find(item => item.innerText.includes('Imposto assumido') && item.innerText.includes('mês ${month}'));
          const input = label?.querySelector('input');
          if (!input) return false;
          const setter = Object.getOwnPropertyDescriptor(HTMLInputElement.prototype, 'value').set;
          setter.call(input, '${value}');
          input.dispatchEvent(new Event('input', { bubbles: true }));
          input.dispatchEvent(new Event('change', { bubbles: true }));
          return true;
        })()`);
    for (const [month, value] of [
        [1, '250'],
        [2, '500'],
    ]) {
        if (!(await setMonth(month, value)))
            throw new Error(`Could not update month ${month}.`);
    }
    await waitFor(
        "[...document.querySelectorAll('tbody tr')].some(row => row.querySelector('th')?.innerText.trim() === '1' && row.querySelectorAll('td')[4]?.innerText.trim() === '250.00')",
        'monthly assumption to affect the cash projection',
    );

    const partialSchedule = await evaluate(`(() => {
      const rows = [...document.querySelectorAll('tbody tr')];
      const taxFor = month => rows.find(row => row.querySelector('th')?.innerText.trim() === String(month))?.querySelectorAll('td')[4]?.innerText.trim() ?? null;
      const note = [...document.querySelectorAll('[role="note"]')].map(node => node.innerText).find(text => text.includes('mês vazio')) ?? null;
      const status = document.body.innerText.includes('Caixa conhecida antes de imposto em falta');
      return { firstMonthTax: taxFor(1), secondMonthTax: taxFor(2), thirdMonthTax: taxFor(3), incompleteNote: note, incompleteSummary: status };
    })()`);

    for (let month = 3; month <= 12; month++) {
        if (!(await setMonth(month, '0')))
            throw new Error(`Could not explicitly set month ${month} to zero.`);
    }
    await waitFor(
        "!document.body.innerText.includes('Há pelo menos um mês sem pressuposto de imposto')",
        'complete projection after explicit zero assumptions',
    );
    const completeSchedule = await evaluate(`(() => ({
      hasCompleteBalance: document.body.innerText.includes('Saldo projectado ao fim de 12 meses (MZN)'),
      zeroTaxMonths: [...document.querySelectorAll('tbody tr')].slice(2).every(row => row.querySelectorAll('td')[4]?.innerText.trim() === '0.00'),
      rowCount: document.querySelectorAll('tbody tr').length,
    }))()`);

    const responsive = [];
    for (const width of [320, 360, 390, 768, 1024, 1440]) {
        await send('Emulation.setDeviceMetricsOverride', {
            width,
            height: 900,
            deviceScaleFactor: 1,
            mobile: width < 768,
        });
        responsive.push(
            await evaluate(`(() => ({
              requested: ${width}, viewport: innerWidth,
              documentWidth: document.documentElement.clientWidth,
              documentScroll: document.documentElement.scrollWidth,
              bodyScroll: document.body.scrollWidth,
              hasHorizontalOverflow: document.documentElement.scrollWidth > document.documentElement.clientWidth + 1 || document.body.scrollWidth > document.documentElement.clientWidth + 1,
              inputs: [...document.querySelectorAll('input:not([type="hidden"])')].filter(input => input.getClientRects().length).length,
              unnamedInputs: [...document.querySelectorAll('input:not([type="hidden"])')].filter(input => input.getClientRects().length && !(input.labels?.length || input.getAttribute('aria-label'))).length,
            }))()`),
        );
    }
    await send('Emulation.clearDeviceMetricsOverride');
    const ax = await send('Accessibility.getFullAXTree');
    const unnamedAxControls = ax.nodes
        .filter(
            (node) =>
                !node.ignored &&
                [
                    'button',
                    'textbox',
                    'radioButton',
                    'spinbutton',
                    'link',
                ].includes(node.role?.value),
        )
        .filter((node) => !node.name?.value?.trim())
        .map((node) => node.role.value);

    report = {
        checkedAt: new Date().toISOString(),
        route: baseUrl,
        browser: 'Microsoft Edge headless via CDP',
        scope: 'React cashflow component only; no Laravel, API, database, or fiscal rules',
        fixedMode,
        partialSchedule,
        completeSchedule,
        responsive,
        unnamedAxControls,
        javascriptExceptions: exceptions,
        networkFailures: network.filter((item) => item.status >= 400),
        passed:
            fixedMode.selected &&
            fixedMode.monthlyInputs === 1 &&
            Boolean(fixedMode.incompleteNote) &&
            partialSchedule.firstMonthTax === '250.00' &&
            partialSchedule.secondMonthTax === '500.00' &&
            partialSchedule.thirdMonthTax === 'Indeterminado' &&
            Boolean(partialSchedule.incompleteNote) &&
            partialSchedule.incompleteSummary &&
            completeSchedule.hasCompleteBalance &&
            completeSchedule.zeroTaxMonths &&
            completeSchedule.rowCount === 12 &&
            responsive.every(
                (item) =>
                    !item.hasHorizontalOverflow && item.unnamedInputs === 0,
            ) &&
            unnamedAxControls.length === 0 &&
            exceptions.length === 0 &&
            network.every((item) => item.status < 400),
    };
    fs.writeFileSync(outputPath, `${JSON.stringify(report, null, 2)}\n`);
    console.log(JSON.stringify(report, null, 2));
    if (!report.passed) process.exitCode = 1;
} catch (error) {
    report = {
        checkedAt: new Date().toISOString(),
        route: baseUrl,
        browser: 'Microsoft Edge headless via CDP',
        failure: error instanceof Error ? error.message : String(error),
        partialReport: report,
        passed: false,
    };
    fs.writeFileSync(outputPath, `${JSON.stringify(report, null, 2)}\n`);
    console.error(JSON.stringify(report, null, 2));
    throw error;
} finally {
    ws.close();
    await fetch(`http://127.0.0.1:9224/json/close/${target.id}`);
}