const {chromium} = require('playwright');
const assert = require('node:assert/strict');
const fs = require('node:fs');
(async () => {
  const base = process.argv[2] || 'http://127.0.0.1:4173';
  const output = `.cache/roadmap-${process.argv[3] || 'local'}`;
  fs.mkdirSync(output, {recursive:true});
  const browser = await chromium.launch({headless:true, executablePath:process.env.PLAYWRIGHT_CHROMIUM_EXECUTABLE, args:['--no-sandbox']});
  const results = [];
  try {
    // Intermediate widths must use the readable vertical Roadmap, not shrink the loop.
    for (const width of [768, 1024]) {
      const context = await browser.newContext({viewport:{width,height:1000}, colorScheme:'light'});
      try {
        const page = await context.newPage();
        const errors = [];
        page.on('pageerror', error => errors.push(error.message));
        const response = await page.goto(`${base}/eldorado-v1/documentation/strategy/roadmap/`, {waitUntil:'networkidle'});
        assert.equal(response.status(), 200);
        const panel = page.locator('.archify-panel--story[data-diagram="strategy-roadmap"]');
        const iframe = panel.locator('.story-mobile');
        assert(await iframe.isVisible(), `${width}: vertical Roadmap iframe must be visible`);
        assert(!await panel.locator('.story-desktop').isVisible(), `${width}: horizontal Roadmap must be hidden`);
        const frame = await (await iframe.elementHandle()).contentFrame();
        await frame.locator('svg[role="img"]').waitFor();
        const geometry = await frame.locator('svg[role="img"]').evaluate(svg => ({
          width:innerWidth, height:innerHeight,
          overflow:document.documentElement.scrollWidth > innerWidth || document.documentElement.scrollHeight > innerHeight,
          nodes:[...svg.querySelectorAll('[data-node-id]')].map(node => ({
            id:node.dataset.nodeId, box:node.querySelector('rect').getBoundingClientRect().toJSON(),
            text:[...node.querySelectorAll('text')].map(t => ({text:t.textContent, box:t.getBoundingClientRect().toJSON(), size:parseFloat(getComputedStyle(t).fontSize)*t.getScreenCTM().a}))
          })).sort((a,b) => a.box.y-b.box.y || a.box.x-b.box.x)
        }));
        assert.deepEqual(geometry.nodes.map(n => n.id), ['skills','autonomy']);
        for (const [index, card] of geometry.nodes.entries()) {
          assert(card.text.length > 0, `${width}: missing text in ${card.id}`);
          assert(card.box.left >= 0 && card.box.top >= 0 && card.box.right <= geometry.width + 1 && card.box.bottom <= geometry.height + 1, `${width}: card outside iframe: ${card.id}`);
          for (const t of card.text) {
            assert(t.box.left >= card.box.left && t.box.right <= card.box.right + 1 && t.box.top >= card.box.top && t.box.bottom <= card.box.bottom + 1, `${width}: clipped ${card.id} ${t.text}`);
            assert(t.size >= 11, `${width}: small ${card.id} ${t.text}: ${t.size}`);
          }
          if (index) {
            const previous = geometry.nodes[index - 1].box;
            assert.equal(previous.x, card.box.x);
            assert(previous.bottom < card.box.top, `${width}: stages must flow vertically`);
          }
        }
        assert(!geometry.overflow, `${width}: iframe overflow`);
        assert(!await page.evaluate(() => document.documentElement.scrollWidth > innerWidth), `${width}: page overflow`);
        assert.deepEqual(errors, []);
        results.push({width, geometry, responsiveReadability:true});
        fs.writeFileSync(`${output}/results.json`, JSON.stringify(results,null,2));
      } finally {await context.close();}
    }
    for (const width of [1440, 390, 320]) {
      const context = await browser.newContext({viewport:{width,height:1000}, colorScheme:'light'});
      const page = await context.newPage();
      const errors = [];
      page.on('pageerror', error => errors.push(error.message));
      const response = await page.goto(`${base}/eldorado-v1/documentation/strategy/roadmap/`, {waitUntil:'networkidle'});
      assert.equal(response.status(), 200);
      assert.equal(await page.locator('h1').innerText(), 'Roadmap');
      const headings = page.locator('.strategy-content > h2');
      assert.deepEqual((await headings.allTextContents()).map(s => s.replace(/\u200b/g, '')), ['Six months, two investment decisions','Delivery first, replication only if earned','Keep one learning loop','Solo capacity and influence']);
      const text = await page.locator('.strategy-content').innerText();
      for (const marker of ['Humans direct, guide and review throughout', 'Delivery keeps improving', 'system-logic source', 'baseline', 'Target operating model']) assert(text.includes(marker), marker);
      assert(!text.includes('Supporting gate evidence and hold conditions\n\nThese are'));
      if (width < 700) await page.getByRole('button', {name:'Toggle navigation bar'}).click();
      const menu = page.locator('.theme-doc-sidebar-menu .menu__link').filter({visible:true});
      await menu.first().waitFor({state:'visible'});
      assert.deepEqual((await menu.allTextContents()).slice(0,2), ['Target','Roadmap']);
      if (width < 700) await page.getByRole('button', {name:'Close navigation bar'}).click();
      const panel = page.locator('.archify-panel--story').first();
      const iframe = panel.locator(width > 700 ? '.story-desktop' : '.story-mobile');
      await iframe.scrollIntoViewIfNeeded();
      const frame = await (await iframe.elementHandle()).contentFrame();
      await frame.locator('svg[role="img"]').waitFor();
      const checkCards = async () => {
        const cards = await frame.locator('svg[role="img"] [data-node-id]').evaluateAll(nodes => nodes.map(node => {
          const box = node.querySelector('rect').getBoundingClientRect();
          return {id:node.dataset.nodeId, box:box.toJSON(), text:[...node.querySelectorAll('text')].map(t => ({text:t.textContent, box:t.getBoundingClientRect().toJSON(), size:parseFloat(getComputedStyle(t).fontSize)*t.getScreenCTM().a}))};
        }));
        for (const card of cards) for (const t of card.text) {
          assert(t.box.left >= card.box.left && t.box.right <= card.box.right + 1 && t.box.top >= card.box.top && t.box.bottom <= card.box.bottom + 1, `${width}: clipped ${card.id} ${t.text}`);
          assert(t.size >= 11, `${width}: small ${card.id} ${t.text}: ${t.size}`);
        }
        return cards;
      };
      await checkCards();
      const geometry = await frame.locator('svg[role="img"]').evaluate(svg => ({
        nodes:[...svg.querySelectorAll('[data-node-id]')].map(n => ({id:n.dataset.nodeId,...n.getBoundingClientRect().toJSON()})).sort((a,b) => a.y-b.y || a.x-b.x),
        width:innerWidth, height:innerHeight,
        minLabel:Math.min(...[...svg.querySelectorAll('text[data-node-label]')].map(n => parseFloat(getComputedStyle(n).fontSize)*n.getScreenCTM().a))
      }));
      assert.deepEqual(geometry.nodes.map(n => n.id), ['skills','autonomy']);
      for (const n of geometry.nodes) assert(n.x >= 0 && n.y >= 0 && n.right <= geometry.width + 1 && n.bottom <= geometry.height + 1);
      assert(geometry.minLabel >= 10, `readable node labels: ${geometry.minLabel}`);
      for (let i=1; i<geometry.nodes.length; i++) {
        const a=geometry.nodes[i-1], b=geometry.nodes[i];
        if(width > 700) {assert.equal(a.y,b.y); assert(a.right < b.x);}
        else {assert.equal(a.x,b.x); assert(a.bottom < b.y);}
      }
      // Portal -> diagram and diagram -> portal are both part of the contract.
      if (width <= 700) await page.getByRole('button', {name:'Toggle navigation bar'}).click();
      for (let attempt=0; attempt<3; attempt++) {
        await page.getByRole('button', {name:/Switch between dark and light mode/}).filter({visible:true}).click();
        if (await page.locator('html').getAttribute('data-theme') === 'dark') break;
      }
      if (width <= 700) await page.getByRole('button', {name:'Close navigation bar'}).click();
      await frame.waitForFunction(() => document.documentElement.dataset.theme === 'dark');
      await frame.locator('#btn-theme').click();
      await page.waitForFunction(() => document.documentElement.dataset.theme === 'light');
      await frame.locator('#btn-theme').click();
      await page.waitForFunction(() => document.documentElement.dataset.theme === 'dark');
      await checkCards();
      await frame.locator('#btn-theme').click();
      await page.waitForFunction(() => document.documentElement.dataset.theme === 'light');
      for (const preset of ['blueprint','classic']) {
        await frame.locator('#btn-preset').click();
        await frame.locator(`[data-preset-value="${preset}"]`).click();
        assert.equal(await frame.locator('html').getAttribute('data-preset'), preset);
        await checkCards();
      }
      await frame.locator('#btn-export').click();
      const [download] = await Promise.all([page.waitForEvent('download'), frame.locator('[data-format="svg"]').click()]);
      assert.equal(await download.failure(), null);
      await download.saveAs(`${output}/${width}.svg`);
      assert(fs.readFileSync(`${output}/${width}.svg`, 'utf8').includes('Learn and test'));
      assert(fs.readFileSync(`${output}/${width}.svg`, 'utf8').includes('eldorado-roadmap-typography'));
      for (const id of ['skills','autonomy']) {
        await frame.locator(`svg[role="img"] [data-node-id="${id}"]`).screenshot({path:`${output}/${width}-${id}-card.png`});
      }
      const opener = panel.getByRole('button', {name:/^Expand /});
      await opener.click();
      const close = panel.getByRole('button', {name:'Close full-screen diagram', exact:true});
      await close.waitFor({state:'visible'}); assert.equal(await close.innerText(), '×');
      await close.click(); assert(await opener.evaluate(n => n === document.activeElement));
      await opener.click(); await close.waitFor({state:'visible'}); await page.keyboard.press('Escape');
      await page.waitForFunction(() => !document.querySelector('.archify-panel--story dialog').open);
      assert(await opener.evaluate(n => n === document.activeElement));
      assert(!await page.evaluate(() => document.documentElement.scrollWidth > innerWidth));
      await page.evaluate(() => scrollTo({top:0, behavior:'instant'}));
      await page.screenshot({path:`${output}/${width}-top.png`});
      await headings.first().scrollIntoViewIfNeeded();
      await page.screenshot({path:`${output}/${width}-assessment.png`});
      await page.screenshot({path:`${output}/${width}-full.png`, fullPage:true});
      await page.locator('.strategy-content summary').focus();
      await page.keyboard.press('Enter');
      await page.waitForFunction(() => document.querySelector('.strategy-content details').open);
      await page.locator('.strategy-content details p').last().waitFor({state:'visible'});
      assert((await page.locator('.strategy-content details').innerText()).includes('exact-artifact approvals'));
      const links = await page.locator('.strategy-content a').evaluateAll(nodes => nodes.filter(n => !n.classList.contains('hash-link')).map(n => n.href));
      for (const href of [...new Set(links)]) {
        const r = await page.goto(href, {waitUntil:'networkidle'}); assert.equal(r.status(), 200);
        assert.equal(page.url(), href);
      }
      assert.deepEqual(errors, []);
      results.push({width, geometry, links:links.length, controls:true, export:true, sidebar:true, visibleAssessment:true});
      fs.writeFileSync(`${output}/results.json`, JSON.stringify(results,null,2));
      await context.close();
    }
    console.log(`PASS ${results.length} Roadmap viewports: three-level story, sidebar, diagram geometry, controls, export and links`);
  } finally {await browser.close();}
})().catch(error => {console.error(error); process.exitCode = 1;});