// @ts-check
// Tests: S1–S7 — story mode rendering and navigation
// Requires demo data: run `make demo-load` before this suite.
const { test, expect } = require('@playwright/test');

const STORIES_URL    = '/trips/italy-2026-demo/stories';
const STORY_GALLERY  = '/trips/italy-2026-demo/stories/val-dorcia-at-dawn';       // gallery-led: snap-gallery × 2, chapter-break, text-only pull-quote
const STORY_SCROLLY  = '/trips/italy-2026-demo/stories/sorano-rock-and-time';     // scrolly-led: scrolly-section × 2, chapter-break, pull-quote with image
const DEMO_STORY     = '/trips/italy-2026-demo/stories/val-dorcia-at-dawn';       // used for cross-trip hero sanity check

// ── S1: Stories listing shows cards ──────────────────────────────────────────
test('S1: stories listing renders at least 3 story cards', async ({ page }) => {
    await page.goto(STORIES_URL);
    const cards = page.locator('.story-card');
    await expect(cards.first()).toBeVisible({ timeout: 5000 });
    const count = await cards.count();
    expect(count, 'At least 3 story cards').toBeGreaterThanOrEqual(3);
});

// ── S2: Gallery-led story — hero image + snap-gallery + chapter-break + text-only pull-quote ──
test('S2: gallery-led story renders hero, snap-gallery, chapter-break, text-only pull-quote', async ({ page }) => {
    await page.goto(STORY_GALLERY);
    // Hero: real image rendered, no placeholder
    await expect(page.locator('.story-hero__img')).toBeVisible({ timeout: 8000 });
    await expect(page.locator('.story-hero__img-placeholder')).toHaveCount(0);
    // Snap-gallery (there are two in this story)
    const galleries = page.locator('.pgallery');
    await expect(galleries.first()).toBeVisible();
    expect(await galleries.count(), 'Two snap-galleries').toBe(2);
    // Chapter-break
    await expect(page.locator('.chapter-break')).toBeVisible();
    // Text-only pull-quote (no background image variant)
    await expect(page.locator('.pull-quote__inner--no-image')).toBeVisible();
});

// ── S3: Scrolly-led story — two scrolly-sections + pull-quote with image ─────
test('S3: scrolly-led story renders two scrolly-sections and pull-quote with background image', async ({ page }) => {
    await page.goto(STORY_SCROLLY);
    await expect(page.locator('.story-hero__img')).toBeVisible({ timeout: 8000 });
    // Two scrolly-sections
    const scrollySections = page.locator('.scrolly');
    await expect(scrollySections.first()).toBeVisible();
    expect(await scrollySections.count(), 'Two scrolly-sections').toBe(2);
    // Pull-quote with background image
    await expect(page.locator('.pull-quote__bg')).toBeVisible();
});

// ── S4: Scrolly story loads without JS errors (Scrollama CDN) ────────────────
test('S4: scrolly story page loads without JS errors', async ({ page }) => {
    const errors = [];
    page.on('pageerror', e => errors.push(e.message));
    await page.goto(STORY_SCROLLY);
    await expect(page.locator('.story-hero__img')).toBeVisible({ timeout: 8000 });
    await page.waitForTimeout(1000);
    expect(errors, 'No JS errors on story page').toHaveLength(0);
});

// ── S5: Back button returns to stories listing ────────────────────────────────
test('S5: back button navigates back to stories listing', async ({ page }) => {
    // Establish history: listing → story → back
    await page.goto(STORIES_URL);
    await page.locator('.story-card').first().click();
    await expect(page.locator('.story-hero__img')).toBeVisible({ timeout: 8000 });
    await page.locator('.story-escape').click();
    // After history.back(), URL should be the stories listing
    await expect(page).toHaveURL(/italy-2026-demo\/stories$/);
    await expect(page.locator('.story-card').first()).toBeVisible();
});

// ── S6: Demo story — hero image sanity check ─────────────────────────────────
test('S6: demo story renders hero image without placeholder', async ({ page }) => {
    await page.goto(DEMO_STORY);
    await expect(page.locator('.story-hero__img')).toBeVisible({ timeout: 8000 });
    await expect(page.locator('.story-hero__img-placeholder')).toHaveCount(0);
});

// ── S7: Story body back link is styled as a back-pill ────────────────────────
test('S7: story body back link has back-pill class', async ({ page }) => {
    await page.goto('/trips/italy-2026-demo/stories/val-dorcia-at-dawn');
    await expect(page.locator('.story-hero__img')).toBeVisible({ timeout: 8000 });
    // Scroll past the hero to reveal the story body
    await page.evaluate(() => window.scrollBy(0, window.innerHeight * 1.5));
    await page.waitForTimeout(300);
    const bodyBack = page.locator('.story-footer .back-pill');
    await expect(bodyBack).toBeAttached();
    await expect(bodyBack).toHaveText(/← Back/);
});