// End-to-end check of column colours on Kanban boards (Markdown boards, not databases).
const { app, BrowserWindow } = require('electron');
const path = require('path');
const os = require('os');
const fs = require('fs');

const tmp = fs.mkdtempSync(path.join(os.tmpdir(), 'ink-e2e-kcolors-'));
const vault = path.join(tmp, 'Vault');
fs.mkdirSync(vault);
const BOARD = '## To do\n\n- [ ] One\n\n## Doing\n\n- [ ] Two\n\n## Done\n\n- [x] Three\n';
fs.writeFileSync(path.join(vault, 'Plan.md'), '---\nkanban-plugin: basic\n---\n\n' + BOARD);
fs.writeFileSync(path.join(vault, 'Other.md'), 'Other.\n');
app.setPath('userData', tmp);
fs.writeFileSync(path.join(tmp, 'settings.json'), JSON.stringify({ vault, lastPage: 'Plan', bounds: { width: 1300, height: 800 } }));
require('../electron/main.cjs');

const sleep = (ms) => new Promise((r) => setTimeout(r, ms));
const failures = [];
const check = (name, ok, extra = '') => {
  console.log(`${ok ? 'PASS' : 'FAIL'} ${name}${extra ? ' — ' + extra : ''}`);
  if (!ok) failures.push(name);
};

app.whenReady().then(async () => {
  let win;
  for (let i = 0; i < 80 && !(win = BrowserWindow.getAllWindows()[0]); i++) await sleep(100);
  const wc = win.webContents;
  if (wc.isLoading()) await new Promise((r) => wc.once('did-finish-load', r));
  const js = (code) => wc.executeJavaScript(`(async () => { ${code} })()`);
  const centerOf = (sel) => js(`const e = ${sel}; if (!e) return null; const r = e.getBoundingClientRect(); return [Math.round(r.x + r.width / 2), Math.round(r.y + r.height / 2)]`);
  const click = async (sel) => {
    const c = await centerOf(sel);
    if (!c) throw new Error('not found: ' + sel);
    wc.sendInputEvent({ type: 'mouseMove', x: c[0], y: c[1] });
    wc.sendInputEvent({ type: 'mouseDown', x: c[0], y: c[1], button: 'left', clickCount: 1 });
    wc.sendInputEvent({ type: 'mouseUp', x: c[0], y: c[1], button: 'left', clickCount: 1 });
    await sleep(450);
  };
  const file = () => fs.readFileSync(path.join(vault, 'Plan.md'), 'utf8');
  const pill = (name) => js(`const h = [...document.querySelectorAll('.khead')].find((x) => x.querySelector('.kh-title')?.textContent.trim() === ${JSON.stringify(name)}); return h ? h.querySelector('.db-opt').style.getPropertyValue('--oc') : null`);
  const menuFor = async (name) => {
    await js(`const h = [...document.querySelectorAll('.khead')].find((x) => x.querySelector('.kh-title')?.textContent.trim() === ${JSON.stringify(name)}); h.querySelector('[aria-label="Column options"]').click()`);
    await sleep(300);
  };

  try {
    await sleep(1800);
    check('column titles are pills', (await js(`return document.querySelectorAll('.khead .db-opt').length`)) === 3);
    const auto = await pill('Doing');
    check('...with a colour from their name until you pick one', /^#[0-9a-f]{6}$/i.test(auto), auto);

    await menuFor('Doing');
    await click(`document.querySelector('.kmenu .cv-swatch[data-color="teal"]')`);
    await sleep(1000);
    check('a colour is picked from the column menu', (await pill('Doing')) === '#3aa6c4', await pill('Doing'));
    check('...kept in the page\'s front matter', /ink-colors: .*Doing.*teal/.test(file()), file().slice(0, 120));
    check('...and the board text itself is untouched', file().endsWith(BOARD), JSON.stringify(file().slice(-60)));
    check('...and not listed as a property of the page', !(await js(`return [...document.querySelectorAll('.custom-pk')].some((i) => i.value === 'ink-colors')`)));

    await js(`window.dispatchEvent(new KeyboardEvent('keydown', { key: 'Escape' }))`);
    await js(`document.querySelector('.row[data-id="Other"]').click()`);
    await sleep(900);
    await js(`document.querySelector('.row[data-id="Plan"]').click()`);
    await sleep(1200);
    check('the colour is there when you come back', (await pill('Doing')) === '#3aa6c4', await pill('Doing'));

    // rename keeps it
    await js(`const h = [...document.querySelectorAll('.khead')].find((x) => x.querySelector('.kh-title')?.textContent.trim() === 'Doing'); h.querySelector('.kh-title').click()`);
    await sleep(300);
    await js(`const i = document.querySelector('.kh-input'); i.value = 'In progress'; i.dispatchEvent(new Event('input', { bubbles: true })); i.dispatchEvent(new KeyboardEvent('keydown', { key: 'Enter', bubbles: true }))`);
    await sleep(1000);
    check('renaming a column keeps its colour', (await pill('In progress')) === '#3aa6c4' && /In progress.*teal/.test(file()) && !/"Doing"/.test(file()), file().slice(0, 140));

    await menuFor('In progress');
    await click(`document.querySelector('.kmenu .cv-swatch[data-color="auto"]')`);
    await sleep(900);
    check('"Automatic" takes the colour away again', !/ink-colors/.test(file()), file().slice(0, 100));
  } catch (err) {
    check('harness', false, err.stack);
  }
  fs.rmSync(tmp, { recursive: true, force: true });
  console.log(failures.length ? `\n${failures.length} check(s) failed` : '\nkanban colours e2e passed!');
  app.exit(failures.length ? 1 : 0);
});