import { expect, test } from '@playwright/test';
import { storageStatePath } from './preview-fixtures';
import { trpcQuery } from './preview-trpc';

/**
 * Preview-e2e (F-C): App Blocks MARKETPLACE discovery + per-app detail — the
 * anon-capable PUBLIC read path (`blocks.listAvailable` → `blocks.getAppDetail`)
 * plus `/apps`, and the retirement of the legacy `/apps/<appBlockId>` route.
 * Otherwise untested by the preview suite; a PR that broke the marketplace
 * listing/detail projection or the `features.appBlocks` page gate passes every
 * other preview spec today.
 *
 * Runs as the `mod` fixture (id 2000000001) — the ONLY preview role with
 * `features.appBlocks` (the Flipt `app-blocks-enabled` flag is moderator-segment
 * -only) AND exempt from the per-IP marketplace rate limit (listAvailable /
 * getAppDetail carry a 60/60 rateLimit that the middleware waives for mods).
 * The non-mod testers do NOT have appBlocks: for them /apps SSR-resolves to a
 * Next 404 (resolveAppsPageAccess → notFound) and listAvailable returns empty —
 * so this MUST run as mod to exercise the real read path.
 *
 * Data resilience: the dev DB is a weekly prod clone — there are ~3 approved app
 * blocks today, but a given clone could have zero. So we DISCOVER an appBlockId
 * at runtime from `listAvailable` (never hardcode one) and `test.skip()` with an
 * annotation when the clone has no approved blocks, rather than hard-failing.
 *
 * NB: these procs are DB-backed (not meili-backed search), so no `retryFlaky`.
 *
 * Verified tRPC shapes (against origin/main, paths relative to civitai/src):
 *  - blocks.listAvailable (blocks.router.ts:952 publicProcedure + enforceApp
 *    BlocksFlag + 60/60 rateLimit; input listAvailableSchema, all fields
 *    optional/defaulted so `{}` is valid) RETURNS AN OBJECT, NOT a bare array:
 *    `{ items: AvailableBlock[]; nextCursor?: string }`
 *    (BlockRegistry.listAvailable, block-registry.service.ts:2226). Each
 *    AvailableBlock (subscription.schema.ts:157) = { id, blockId, appId,
 *    appName, manifest: PublicBlockManifest, installCount, category,
 *    scopesSummary }. We DISCOVER an id from `items[0].id` (that id is the
 *    `appBlockId`).
 *  - blocks.getAppDetail (blocks.router.ts:1001 publicProcedure + flag +
 *    60/60 rateLimit; input { appBlockId }) returns `PublicAppDetail | null`
 *    (subscription.schema.ts:371): { id, blockId, appId, appName, manifest:
 *    { name?, description?, targets? }, scopes: string[], contentRating,
 *    version, installCount, liveUrl, screenshots }. Returns null for a missing
 *    / non-approved id (the router then throws NOT_FOUND — our helper would
 *    surface that as a thrown error). We assert the shape of a discovered,
 *    known-approved id, so a non-null detail is expected.
 *  - Legacy detail page (`/apps/[appBlockId]/index.tsx`) is RETIRED: its
 *    `getServerSideProps` now resolves the app's approved `AppListing` and
 *    redirects to `/apps/store-preview/<slug>` (or `notFound` when the app has no
 *    approved listing). It no longer renders, so this spec asserts the REDIRECT
 *    rather than a heading on it.
 *  - Marketplace page (`/apps/index.tsx`) renders the apps navigation as a LEFT RAIL of
 *    links, whose rows come from `appsSections` in `~/components/Apps/apps-sections`.
 *    The row this spec keys on is `{ id: 'marketplace', path: '', label: 'Marketplace' }`
 *    — `path` is the URL segment UNDER `/apps`, so the marketplace row's is the empty
 *    string, not `'/apps'`. It is the only row whose `visible` predicate is unconditional
 *    for a store-eligible viewer: `(_s, c) => c.canSeeStore`, which is exactly the gate
 *    the page itself is behind. ⚠️ An earlier revision of this line added "every other
 *    row is summary-conditional" as the reason — that is wrong for the BUILD row, which
 *    is `(_s, c) => c.canBuild`, context-conditional and deliberately summary-free. The
 *    conclusion still holds by a different route: `canBuild` is
 *    `hasAppsStoreAccess(features) && (isAppDeveloper || appBlocksGetStarted)`, strictly
 *    NARROWER than `canSeeStore`, so it cannot be visible where the marketplace row is
 *    not. It is NOT necessarily the first row, so the assertion below selects it BY NAME
 *    and the order is irrelevant to it.
 *
 *    🔴 THE RAIL IS VIEWPORT-GATED, so this spec asserts BOTH nav forms: the drawer
 *    trigger at this config's default 1280×720 (below `APPS_RAIL_MIN_VIEWPORT`, 1300),
 *    and the `App sections` landmark plus the `Marketplace` LINK after widening to
 *    1440. See the block comment on the assertion itself for why both are required.
 *
 *    ⚠️ This docblock described an `AppsSubNav` TABS BAR sourced from `SUB_NAV_LINKS`
 *    until the rail landed. Both are gone — `AppsSubNav.tsx` was DELETED by this PR and
 *    `SUB_NAV_LINKS` no longer exists — and the stale text is what made the assertion
 *    below look correct while it queried a `role="tab"` that nothing renders.
 *
 *    The page ALSO renders a search control, which this spec does not assert:
 *    `AppListingsMarketplaceBody.tsx` renders `<TextInput aria-label="Search"
 *    placeholder="Search by name">` inside the `apps-store-control-row` group. ⚠️ An
 *    earlier revision of this docblock gave the placeholder as "Search by name or block
 *    id" (stale — only the placeholder text changed), and a later one deleted the whole
 *    claim as "removed upstream in #2767". BOTH were wrong: the control exists at
 *    `origin/main` and at this PR's head, and #2767 does not touch that file. The
 *    deletion was derived from `git log -S`, which reports commits where an occurrence
 *    COUNT changed — a rename is indistinguishable from a removal in that output.
 *
 *    The page renders no `<Title>Civitai App Blocks</Title>`: the app-blocks nav
 *    refactor (#2749/#2758) made `AppsPageLayout` DELIBERATELY OMIT the page title on
 *    the marketplace surface ("omit for a header with just the chrome, e.g. the
 *    marketplace" — the `title` prop's docstring in `AppsPageLayout.tsx`; the wording
 *    was "just the tabs" before the rail, and this citation pointed at a line number
 *    that has since drifted onto unrelated text). The nav is therefore what uniquely
 *    identifies the rendered apps surface for an appBlocks-enabled viewer; a
 *    non-appBlocks viewer gets the Next 404 (resolveAppsPageAccess.ts → notFound).
 */

const ROLE = 'mod' as const;

// Public marketplace listing shape (the fields this spec reads). Mirrors
// AvailableBlock — typed locally so the tRPC result isn't `unknown`/implicit any.
type AvailableBlock = {
  id: string;
  blockId: string;
  appId: string;
  appName: string | null;
  manifest: { name?: string; description?: string; targets?: Array<{ slotId?: string }> };
  installCount: number;
  category: string | null;
  scopesSummary: string[];
};
type ListAvailableResult = { items: AvailableBlock[]; nextCursor?: string };

// Public per-app detail shape (the fields this spec reads). Mirrors
// PublicAppDetail — getAppDetail returns this or null.
type PublicAppDetail = {
  id: string;
  blockId: string;
  appId: string;
  appName: string | null;
  manifest: { name?: string; description?: string; targets?: Array<{ slotId?: string }> };
  scopes: string[];
  contentRating: string | null;
  version: string | null;
  installCount: number;
  liveUrl: string;
  screenshots: Array<{ index: number; url: string; contentType: string }>;
};

test.describe('App Blocks marketplace discovery + detail render (mod)', () => {
  test.use({ storageState: storageStatePath(ROLE) });

  test('listAvailable → getAppDetail round-trip + /apps and /apps/[id] render', async ({
    page,
  }) => {
    // The marketplace index renders for an appBlocks-enabled viewer (the mod) and
    // 404s for everyone else. Asserting it loads (status < 400) + shows the apps
    // navigation proves the mod cleared the `features.appBlocks` SSR gate and the page
    // rendered (NOT the 404 a non-appBlocks user gets). The page renders no "Civitai App
    // Blocks" heading — the app-blocks nav refactor (#2749/#2758) made AppsPageLayout omit
    // the title on the marketplace surface — so the nav is what uniquely identifies the
    // apps surface.
    //
    // 🔴 THE NAV IS A LEFT RAIL OF LINKS, NOT A TAB STRIP, AND IT IS VIEWPORT-GATED.
    // This assertion read `getByRole('tab', { name: 'Marketplace' })` until the rail
    // landed; there are no `role="tab"` elements on `/apps` any more. Two things had to
    // change together, and the second is the one that bites:
    //   • the role is `link` — the rail is a `<nav aria-label="App sections">` of real
    //     anchors;
    //   • the rail is `display: none` below `APPS_RAIL_MIN_VIEWPORT` (1300px), where a
    //     "App sections" drawer trigger stands in for it — and this config's
    //     `devices['Desktop Chrome']` viewport is **1280×720**, i.e. BELOW that line. So
    //     the default preview viewport renders the DRAWER form and a bare
    //     `getByRole('link', …)` would fail on a perfectly healthy page.
    // Both forms are asserted below rather than one, because both are real surfaces a
    // user gets and the smoke suite is the only tier that sees this page deployed.
    // domcontentloaded ONLY — never networkidle.
    const resp = await page.goto('/apps', { waitUntil: 'domcontentloaded' });
    expect(resp?.status(), 'GET /apps status for the appBlocks-enabled mod').toBeLessThan(400);

    // (a) THE DEFAULT (1280) FORM — the drawer trigger is the only nav affordance here.
    await expect(
      page.getByRole('button', { name: 'App sections' }),
      '/apps at 1280 should render the "App sections" drawer trigger for an ' +
        'appBlocks-enabled mod (not a 404). Below 1300px the rail is display:none.'
    ).toBeVisible();

    // (b) THE RAIL FORM — widen past the threshold and the landmark + entries appear.
    // This is the half that proves the nav actually has destinations rather than just a
    // button, and it is the shape the overwhelming majority of desktop viewers get.
    await page.setViewportSize({ width: 1440, height: 900 });
    await expect(
      page.getByRole('navigation', { name: 'App sections' }),
      '/apps at 1440 should expose the "App sections" navigation landmark'
    ).toBeVisible();
    await expect(
      page.getByRole('link', { name: 'Marketplace' }),
      '/apps should render the rail\'s "Marketplace" entry for an appBlocks-enabled mod'
    ).toBeVisible();
    await page.setViewportSize({ width: 1280, height: 720 });

    // DISCOVER an appBlockId at runtime from the public listing. Never hardcode
    // one — the weekly dev clone's approved set varies. `{}` input is valid (all
    // listAvailableSchema fields are optional/defaulted). page.request carries the
    // mod cookie; the helper stamps Origin/Referer for the CSRF gate.
    const listing = await trpcQuery<ListAvailableResult>(page.request, 'blocks.listAvailable', {});
    expect(
      Array.isArray(listing?.items),
      'blocks.listAvailable should resolve to { items: AvailableBlock[] }'
    ).toBe(true);

    const blocks = listing?.items ?? [];
    test.skip(
      blocks.length === 0,
      'No approved app blocks in this dev-DB clone — nothing to discover (the weekly prod clone can have zero). Skipping the detail-render leg rather than hard-failing.'
    );

    // One representative block — don't crawl the whole list.
    const first = blocks[0];
    expect(typeof first.id, 'each listed block should carry a string id (the appBlockId)').toBe(
      'string'
    );

    // Per-app DETAIL for that exact block. getAppDetail returns the public
    // projection for an approved id; a discovered id IS approved (listAvailable
    // only returns status='approved' rows), so detail must be non-null.
    const detail = await trpcQuery<PublicAppDetail | null>(page.request, 'blocks.getAppDetail', {
      appBlockId: first.id,
    });
    expect(
      detail,
      'getAppDetail should return a non-null detail for a discovered approved id'
    ).not.toBeNull();
    expect(detail!.id, 'getAppDetail.id should echo the requested appBlockId').toBe(first.id);
    // A human display name: manifest.name is the public allowlist field; fall back
    // to blockId (the page does the same: name = manifest.name ?? blockId ?? id).
    const detailName = detail!.manifest.name ?? detail!.blockId;
    expect(
      typeof detailName,
      'detail should expose a display name (manifest.name or blockId)'
    ).toBe('string');
    expect(detailName.length, 'the display name should be non-empty').toBeGreaterThan(0);
    // The scopes + slots arrays are shape-correct (anon-display allowlist).
    expect(Array.isArray(detail!.scopes), 'detail.scopes should be an array').toBe(true);
    expect(
      Array.isArray(detail!.manifest.targets ?? []),
      'detail.manifest.targets should be an array (slot badges)'
    ).toBe(true);

    // The legacy per-app route `/apps/<appBlockId>` is RETIRED: it now redirects to
    // the unified store detail. This leg used to assert that route rendered the
    // block's name; that page no longer renders at all, so asserting a heading here
    // would either test the store detail by accident or race its client-side query.
    // Assert the RETIREMENT instead — the invariant this route now has.
    //
    // Deliberately asserts the destination PATH PREFIX, not `/apps/store-preview/
    // <blockId>`: the redirect resolves the store slug from the listing row, and
    // pinning blockId here would re-import the very assumption the redirect avoids.
    //
    // 🔴 A 404 here is a real signal, not flake: it means this approved app has no
    // approved `AppListing` row. Auto-create-on-approve is best-effort (it logs and
    // continues on failure) and apps approved before it shipped were backfilled by
    // hand, so the gap is recoverable but does not self-heal. Fix the data (run the
    // mod-only listing backfill), don't relax this assertion. domcontentloaded ONLY.
    const detailResp = await page.goto(`/apps/${encodeURIComponent(first.id)}`, {
      waitUntil: 'domcontentloaded',
    });
    expect(
      detailResp?.status(),
      `GET /apps/${first.id} should follow the retirement redirect to a served page (a 404 means this approved app has no approved AppListing row)`
    ).toBeLessThan(400);

    const landedOn = new URL(page.url()).pathname;
    expect(
      landedOn,
      `the retired /apps/${first.id} should land on the unified store detail, not render itself`
    ).toMatch(/^\/apps\/store-preview\/.+/);

    // 🔴 The two assertions below replace an earlier `.not.toBe('/apps/<id>')`, which
    // COULD NOT FAIL: given the `toMatch` above has passed, `landedOn` already starts
    // `/apps/store-preview/`, and `/apps/<appBlockId>` never can — so the inequality
    // held by construction. It wore the name of a guard while guarding nothing. Both
    // replacements pin a property the `toMatch` genuinely leaves open.

    // (a) The slug occupies EXACTLY ONE path segment. `/^\/apps\/store-preview\/.+/`
    //     happily accepts `/apps/store-preview/a/b` — i.e. a destination that climbed
    //     out of the detail route into some other page. This is the browser-level
    //     twin of the containment property the unit test pins on the built string.
    const slugSegment = landedOn.slice('/apps/store-preview/'.length);
    expect(
      slugSegment.split('/').filter(Boolean),
      `the store slug must be one path segment, got "${slugSegment}"`
    ).toHaveLength(1);

    // (b) The retirement happened at the HTTP layer — a real server redirect out of
    //     the legacy route — not a client-side bounce rendered by the page. Walk the
    //     redirect chain of the response we landed on and require the legacy path in
    //     it. This fails if anyone reimplements the retirement as a `router.replace`
    //     in the component (which would reintroduce exactly the render-then-race this
    //     leg was rewritten to avoid), and it fails if a future `/apps/*` middleware
    //     or rewrite starts serving the store detail directly without the 302.
    const redirectChain: string[] = [];
    for (
      let req = detailResp?.request().redirectedFrom();
      req && redirectChain.length < 10;
      req = req.redirectedFrom()
    ) {
      redirectChain.push(new URL(req.url()).pathname);
    }
    expect(
      redirectChain.map((p) => decodeURIComponent(p)),
      `GET /apps/${
        first.id
      } must reach the store detail via a SERVER redirect out of the legacy route (chain: ${
        redirectChain.join(' -> ') || '<none>'
      })`
    ).toContain(`/apps/${first.id}`);
  });
});