// @ts-check
// Tests: U3 — trip-list card one-liner + retina cover (R5, R6, R7, R14)
// R11 (set-but-unresolvable cover_image falls back) shares the exact else-branch
// exercised by the R7/AE3 fallback test below; it is covered by construction in
// the shared cover macro rather than by a dedicated fixture here.
const { test, expect } = require('@playwright/test');

const DEMO_HREF = '/trips/italy-2026-demo';   // has a tagline, no cover_image (entry-image fallback)
const NO_TAGLINE_HREF = '/trips/slovenia-2024'; // a real trip with no tagline

const demoCard = (page) => page.locator(`.trip-card[href="${DEMO_HREF}"]`);

// ── R5: one-liner renders between the title and the meta line ──────────────────
test('U3/R5: card with a tagline shows a one-liner between title and meta', async ({ page }) => {
    await page.goto('/trips');
    const card = demoCard(page);
    const tagline = card.locator('.trip-card-tagline');
    await expect(tagline).toBeVisible();
    await expect(tagline).toHaveText(/southern Tuscany by bike/);

    const order = await card.evaluate((el) =>
        Array.from(el.children).map((c) => c.className.split(' ')[0])
    );
    expect(order.indexOf('trip-card-title')).toBeLessThan(order.indexOf('trip-card-tagline'));
    expect(order.indexOf('trip-card-tagline')).toBeLessThan(order.indexOf('trip-card-meta'));
});

// ── R5/AE1: a card with no tagline renders no one-liner element ────────────────
test('U3/R5/AE1: card without a tagline renders no one-liner element', async ({ page }) => {
    await page.goto('/trips');
    const card = page.locator(`.trip-card[href="${NO_TAGLINE_HREF}"]`);
    await expect(card).toBeVisible();
    await expect(card.locator('.trip-card-tagline')).toHaveCount(0);
});

// ── R6/AE5: card cover exposes a 1x srcset; 2x only when the source is ≥2×w ────
test('U3/R6/AE5: card cover img carries a 720w srcset, 2x omitted for a narrow source', async ({ page }) => {
    await page.goto('/trips');
    const img = demoCard(page).locator('.trip-card-cover img');
    const srcset = await img.getAttribute('srcset');
    expect(srcset).toContain('720w');
    // The 1200px source can't supply a non-upscaled 2x (needs ≥1440), so the
    // retina descriptor is omitted — 1x only, no upscale, no intermediate width.
    expect(srcset).not.toContain('1440w');
    expect(srcset).not.toContain('1200w');
    // cropZoom cover strip (~3:1), not a cropResize fit-inside sliver.
    const ratio = await img.evaluate((el) => new Promise((res) => {
        const done = () => res(el.naturalWidth / el.naturalHeight);
        el.complete && el.naturalWidth ? done() : el.addEventListener('load', done, { once: true });
    }));
    expect(ratio).toBeGreaterThan(2.5);
});

// ── R7/AE3: with no cover_image set, the card falls back to a journal image ────
test('U3/R7/AE3: card with no cover_image uses the first journal entry image', async ({ page }) => {
    await page.goto('/trips');
    // The demo trip sets cover_image: '' so the cover comes from the fallback.
    const img = demoCard(page).locator('.trip-card-cover img');
    await expect(img).toBeVisible();
    const src = await img.getAttribute('src');
    expect(src).toMatch(/\/images\/.+\.(jpg|jpeg|png|webp)/i);
});

// ── R14: cover alt text equals the trip title ─────────────────────────────────
test('U3/R14: card cover alt equals the trip title', async ({ page }) => {
    await page.goto('/trips');
    const img = demoCard(page).locator('.trip-card-cover img');
    await expect(img).toHaveAttribute('alt', 'Tuscany 2026');
});