// Drives the dev server with Playwright bundled chromium.
// Captures /design-system-v2 in 3 quietware modes (dark/light/HC) + a fallback.
import { chromium } from "playwright";
import { mkdir } from "node:fs/promises";

const OUT = "/tmp/lumotia-v0.3-screenshots";
await mkdir(OUT, { recursive: true });

const browser = await chromium.launch({ headless: true });
const ctx = await browser.newContext({
  viewport: { width: 1440, height: 1024 },
  deviceScaleFactor: 2,
});
const page = await ctx.newPage();

// Capture console for diagnosis
page.on("pageerror", e => console.error("[page error]", e.message));
page.on("console", m => { if (m.type() === "error") console.error("[console]", m.text()); });

async function setMode({ design, theme, contrast }) {
  await page.evaluate(({ design, theme, contrast }) => {
    const h = document.documentElement;
    if (design) h.setAttribute("data-design", design); else h.removeAttribute("data-design");
    if (theme) h.setAttribute("data-theme", theme); else h.removeAttribute("data-theme");
    if (contrast) h.setAttribute("data-contrast", contrast); else h.removeAttribute("data-contrast");
  }, { design, theme, contrast });
}

const CAPTURES = [
  // route, modes
  { route: "/design-system-v2", name: "design-system" },
];

const MODES = [
  { id: "v02-dark",       design: null,         theme: null,     contrast: null,   label: "v0.2 baseline (no quietware)" },
  { id: "quiet-dark",     design: "quietware",  theme: null,     contrast: null,   label: "Quietware dark" },
  { id: "quiet-light",    design: "quietware",  theme: "light",  contrast: null,   label: "Quietware light" },
  { id: "quiet-hc-dark",  design: "quietware",  theme: null,     contrast: "high", label: "Quietware high-contrast (dark base)" },
  { id: "quiet-hc-light", design: "quietware",  theme: "light",  contrast: "high", label: "Quietware high-contrast (light base)" },
];

const BASE = "http://localhost:1420";

for (const capture of CAPTURES) {
  console.log(`\n=== ${capture.name} (${capture.route}) ===`);
  try {
    await page.goto(BASE + capture.route, { waitUntil: "networkidle", timeout: 30000 });
  } catch (e) {
    console.error(`navigation failed: ${e.message}`);
    continue;
  }
  // Wait a beat for Svelte hydration + font load
  await page.waitForTimeout(1500);

  for (const mode of MODES) {
    await setMode(mode);
    await page.waitForTimeout(400); // CSS transitions
    const file = `${OUT}/${capture.name}__${mode.id}.png`;
    await page.screenshot({ path: file, fullPage: true });
    const stats = await page.evaluate(() => ({
      h: document.documentElement.dataset.design || "(none)",
      t: document.documentElement.dataset.theme || "(default)",
      c: document.documentElement.dataset.contrast || "(default)",
    }));
    console.log(`  ${mode.id}  design=${stats.h}  theme=${stats.t}  contrast=${stats.c}`);
  }
}

// Also try the root route — may render the Dictation/FirstRun page if Tauri APIs
// gracefully degrade in browser context. Worth attempting; if it crashes we just skip.
try {
  console.log("\n=== root route (best effort) ===");
  await page.goto(BASE + "/", { waitUntil: "domcontentloaded", timeout: 15000 });
  await page.waitForTimeout(2000);
  for (const mode of MODES.slice(0, 3)) {
    await setMode(mode);
    await page.waitForTimeout(400);
    const file = `${OUT}/root__${mode.id}.png`;
    await page.screenshot({ path: file, fullPage: false });
    console.log(`  root ${mode.id}`);
  }
} catch (e) {
  console.error(`root route skipped: ${e.message}`);
}

// Files page — SPA navigation via the sidebar item.
try {
  console.log("\n=== files page (best effort) ===");
  await page.evaluate(() => {
    const items = Array.from(document.querySelectorAll('button, a, [role="button"], li'));
    const target = items.find(el => (el.textContent || "").trim().toLowerCase() === "files");
    if (target) target.click();
  });
  await page.waitForTimeout(1500);
  for (const mode of MODES.slice(1, 3)) {
    await setMode(mode);
    await page.waitForTimeout(400);
    const file = `${OUT}/files__${mode.id}.png`;
    await page.screenshot({ path: file, fullPage: false });
    console.log(`  files ${mode.id}`);
  }
} catch (e) {
  console.error(`files page skipped: ${e.message}`);
}

await browser.close();
console.log(`\nWrote screenshots to ${OUT}/`);