// @vitest-environment jsdom

import assert from "node:assert/strict";
import { expect, test } from "vitest";
import { act, render, screen, waitFor } from "@testing-library/react";
import userEvent from "@testing-library/user-event";

import {
  AssetLibrary,
  canHardDelete,
} from "../../../src/features/tech-log/presentation/studio/components/asset-library.tsx";
import { StudioGatewayError } from "../../../src/features/tech-log/application/ports/studio-gateway-error.ts";

const ASSET = {
  id: "11111111-1111-4111-8111-111111111111",
  assetKey: "boundary",
  kind: "DIAGRAM",
  mediaType: "image/svg+xml",
  originalFilename: "b.svg",
  byteSize: 10,
  width: 1080,
  height: 420,
  altText: "경계",
  decorative: false,
  managementStatus: "READY",
  publicPath: "/media/boundary.svg",
  usageCount: 0,
  version: 1,
  createdAt: "2026-08-14T01:00:00.000Z",
  updatedAt: "2026-08-14T01:00:00.000Z",
} as never;

// `ASSET` is typed `never` (see above) so it can stand in for any generated
// contract shape without fighting the type checker across this file's other
// fixtures. That means its fields can't be dereferenced directly; these two
// mirror the literals in `ASSET` above for the fix-round-1 tests that need
// to assert on them.
const ASSET_ID = "11111111-1111-4111-8111-111111111111";
const ASSET_VERSION = 1;

function gatewayOf(detail: unknown, onDelete?: () => never) {
  return {
    async listAssets() {
      return { items: [ASSET], nextCursor: null } as never;
    },
    async getAsset() {
      return detail as never;
    },
    async uploadAsset() {
      throw new Error("not used");
    },
    async updateAssetMetadata() {
      return ASSET;
    },
    async deleteAsset() {
      if (onDelete) onDelete();
    },
  } as never;
}

/**
 * Fix round 1 (Minor 4). Unlike `gatewayOf`, this records exactly what
 * `archive()`/`remove()` send the gateway, so a test can pin the command
 * shape (`expectedVersion`, `managementStatus`) and the idempotency-key
 * plumbing, not just the resulting UI text.
 */
function recordingGateway(detail: unknown) {
  const archiveCalls: Array<{ assetId: string; command: unknown; options: unknown }> = [];
  const deleteCalls: Array<{ assetId: string; options: unknown }> = [];
  const archivedAsset = { ...(ASSET as object), managementStatus: "ARCHIVED" } as never;
  const gateway = {
    async listAssets() {
      return { items: [ASSET], nextCursor: null } as never;
    },
    async getAsset() {
      return detail as never;
    },
    async uploadAsset() {
      throw new Error("not used");
    },
    async updateAssetMetadata(assetId: string, command: unknown, options: unknown) {
      archiveCalls.push({ assetId, command, options });
      return archivedAsset;
    },
    async deleteAsset(assetId: string, options: unknown) {
      deleteCalls.push({ assetId, options });
    },
  } as never;
  return { gateway, archiveCalls, deleteCalls };
}

test("offers hard delete only for an unused asset with no publication history", () => {
  assert.equal(
    canHardDelete({ asset: ASSET, usages: [], hasPublicationHistory: false } as never),
    true,
  );
  assert.equal(
    canHardDelete({ asset: ASSET, usages: [], hasPublicationHistory: true } as never),
    false,
  );
  assert.equal(
    canHardDelete({
      asset: ASSET,
      usages: [{ documentId: "d", documentKind: "CASE", title: "문서", published: true }],
      hasPublicationHistory: false,
    } as never),
    false,
  );
  // Fix round 1 (Minor 2). Every assertion above uses `usageCount: 0`, so
  // the `asset.usageCount === 0` clause was never independently exercised --
  // dropping or inverting it would still pass. `usages: []` and
  // `hasPublicationHistory: false` isolate it: only the usage-count clause
  // can make this `false`.
  assert.equal(
    canHardDelete({
      asset: { ...(ASSET as object), usageCount: 1 },
      usages: [],
      hasPublicationHistory: false,
    } as never),
    false,
  );
});

test("shows archive instead of delete for an asset in use", async () => {
  const user = userEvent.setup();
  render(<AssetLibrary gateway={gatewayOf({
    asset: { ...(ASSET as object), usageCount: 1 },
    usages: [{ documentId: "d", documentKind: "CASE", title: "사용 중 문서", published: true }],
    hasPublicationHistory: true,
  })} />);

  await user.click(await screen.findByRole("button", { name: "boundary" }));

  assert.ok(await screen.findByRole("button", { name: "보관" }));
  expect(screen.queryByRole("button", { name: "삭제" })).not.toBeInTheDocument();
});

test("surfaces ASSET_IN_USE when the server rejects a delete", async () => {
  const user = userEvent.setup();
  render(<AssetLibrary gateway={gatewayOf(
    { asset: ASSET, usages: [], hasPublicationHistory: false },
    () => {
      throw new StudioGatewayError({
        type: "https://techlog.local/problems/asset-in-use",
        title: "ASSET_IN_USE",
        status: 409,
        detail: "사용 중인 Asset은 삭제할 수 없습니다.",
        code: "ASSET_IN_USE",
      });
    },
  )} />);

  await user.click(await screen.findByRole("button", { name: "boundary" }));
  await user.click(await screen.findByRole("button", { name: "삭제" }));

  assert.ok(await screen.findByText("사용 중인 Asset은 삭제할 수 없습니다."));
});

// Fix round 1 (Minor 4). The archive success path -- the exact command sent
// to the gateway, the merged list state, and the success notice -- was
// previously verified only by reading the source.
test("archives an asset by sending the expected command and merging the server's response into the list", async () => {
  const user = userEvent.setup();
  const { gateway, archiveCalls } = recordingGateway({
    asset: { ...(ASSET as object), usageCount: 1 },
    usages: [{ documentId: "d", documentKind: "CASE", title: "사용 중 문서", published: true }],
    hasPublicationHistory: true,
  });
  render(<AssetLibrary gateway={gateway} />);

  const row = (await screen.findByRole("button", { name: "boundary" })).closest("li");
  assert.ok(row);
  await user.click(await screen.findByRole("button", { name: "boundary" }));
  await user.click(await screen.findByRole("button", { name: "보관" }));

  assert.ok(await screen.findByText("보관했습니다."));
  assert.equal(archiveCalls.length, 1);
  assert.equal(archiveCalls[0].assetId, ASSET_ID);
  assert.deepEqual(archiveCalls[0].command, {
    expectedVersion: ASSET_VERSION,
    managementStatus: "ARCHIVED",
  });
  const options = archiveCalls[0].options as { idempotencyKey?: unknown };
  assert.equal(typeof options.idempotencyKey, "string");
  assert.ok((options.idempotencyKey as string).length > 0);
  // The row reflects the server's returned asset (now ARCHIVED), not a
  // client-guessed status -- proving the list state actually merged the
  // response instead of just leaving the old row in place. `findByText`
  // above already settled on the post-update render, so this can assert
  // directly instead of polling.
  assert.ok(row.textContent?.includes("ARCHIVED"));
});

// Fix round 1 (I1 + Minor 4). Combines the delete success path's gateway
// call shape with the focus-restoration regression this round fixed: the
// row that opened the panel is removed from the DOM by a successful delete,
// so restoring focus to it (the pre-fix behaviour) is a silent no-op that
// strands focus on <body>. This test pins the fix -- focus must land on the
// page heading, the one anchor guaranteed to still exist -- so a future
// regression back to the removed trigger fails loudly here.
test("removes the asset and restores focus to the page heading, not the detached row button, after a successful delete", async () => {
  const user = userEvent.setup();
  const { gateway, deleteCalls } = recordingGateway({
    asset: ASSET,
    usages: [],
    hasPublicationHistory: false,
  });
  render(<AssetLibrary gateway={gateway} />);

  await user.click(await screen.findByRole("button", { name: "boundary" }));
  await user.click(await screen.findByRole("button", { name: "삭제" }));

  assert.ok(await screen.findByText("삭제했습니다."));
  assert.equal(deleteCalls.length, 1);
  assert.equal(deleteCalls[0].assetId, ASSET_ID);
  const options = deleteCalls[0].options as { idempotencyKey?: unknown };
  assert.equal(typeof options.idempotencyKey, "string");
  assert.ok((options.idempotencyKey as string).length > 0);
  expect(screen.queryByRole("button", { name: "boundary" })).not.toBeInTheDocument();

  // `findByText` above already settled on the post-delete render -- the
  // `queueMicrotask`-scheduled focus call has necessarily run by then, since
  // `findByText` only resolves after yielding through at least one macrotask
  // (its polling uses `setTimeout`/`MutationObserver`), and microtasks always
  // drain before the next macrotask runs. So this asserts directly rather
  // than polling.
  //
  // `toHaveFocus`, never `assert.equal(document.activeElement, heading)`:
  // node:assert builds an AssertionError by running `util.inspect` over both
  // operands at `depth: 1000`, and a React-rendered element carries
  // `__reactFiber$*` own properties whose graph re-expands per traversal
  // path. Inspecting one costs gigabytes, so the regression this test guards
  // used to kill the worker instead of reporting itself. jest-dom prints DOM
  // nodes through pretty-format's DOM plugin, which never touches the fiber.
  const heading = screen.getByRole("heading", { name: "Asset", level: 1 });
  expect(heading).toHaveFocus();
});

// --- Alignment follow-up, item 1: the management screen gets search and paging ---
//
// `listAssets` has always accepted `q`/`cursor` and returned `nextCursor`, and
// this screen's own heading promises search ("업로드한 Asset을 검색하고..."),
// but the component asked for `{ limit: 50 }` and dropped `nextCursor` on the
// floor. Past the 51st asset older assets were simply unmanageable, with
// nothing on screen admitting anything had been left out.

type ListCall = Readonly<{ q?: string; cursor?: string; limit?: number }>;
type ListPage = Readonly<{ items: unknown[]; nextCursor: string | null }>;

function assetNamed(assetKey: string, id: string) {
  return { ...(ASSET as object), id, assetKey } as never;
}

function libraryGateway(respond: (query: ListCall) => ListPage) {
  const calls: ListCall[] = [];
  const gateway = {
    async listAssets(query: ListCall) {
      calls.push(query);
      return respond(query) as never;
    },
    async getAsset() {
      return { asset: ASSET, usages: [], hasPublicationHistory: false } as never;
    },
    async uploadAsset() {
      throw new Error("not used");
    },
    async updateAssetMetadata() {
      return ASSET;
    },
    async deleteAsset() {},
  } as never;
  return { gateway, calls };
}

test("searches assets with the typed query and announces the new result count", async () => {
  const user = userEvent.setup();
  const older = assetNamed("older-diagram", "eeeeeeee-eeee-4eee-8eee-eeeeeeeeeee1");
  const newer = assetNamed("newer-diagram", "eeeeeeee-eeee-4eee-8eee-eeeeeeeeeee2");
  const { gateway, calls } = libraryGateway((query) =>
    query.q === "older"
      ? { items: [older], nextCursor: null }
      : { items: [newer, older], nextCursor: null },
  );
  render(<AssetLibrary gateway={gateway} />);

  await screen.findByRole("button", { name: "newer-diagram" });
  await user.type(screen.getByLabelText("Asset 검색"), "older");
  await user.click(screen.getByRole("button", { name: "검색" }));

  assert.ok(await screen.findByRole("button", { name: "older-diagram" }));
  expect(screen.queryByRole("button", { name: "newer-diagram" })).not.toBeInTheDocument();
  assert.equal(calls.at(-1)?.q, "older");
  // The result count lives in a `role="status"` region so a screen reader is
  // told the list changed -- a silently re-rendered list is the failure mode
  // a search box invites.
  const counts = screen
    .getAllByRole("status")
    .map((node) => node.textContent ?? "");
  assert.ok(counts.some((text) => text.includes("1개")), counts.join(" | "));
});

test("typing alone never reaches the gateway -- only the submitted query does", async () => {
  const user = userEvent.setup();
  const { gateway, calls } = libraryGateway(() => ({ items: [ASSET], nextCursor: null }));
  render(<AssetLibrary gateway={gateway} />);

  await screen.findByRole("button", { name: "boundary" });
  assert.equal(calls.length, 1);

  await user.type(screen.getByLabelText("Asset 검색"), "boundary");

  assert.equal(calls.length, 1);
});

test("loads the next page with the server cursor and appends it to the list", async () => {
  const user = userEvent.setup();
  const first = assetNamed("page-one", "ffffffff-ffff-4fff-8fff-fffffffffff1");
  const second = assetNamed("page-two", "ffffffff-ffff-4fff-8fff-fffffffffff2");
  const { gateway, calls } = libraryGateway((query) =>
    query.cursor === "cursor-1"
      ? { items: [second], nextCursor: null }
      : { items: [first], nextCursor: "cursor-1" },
  );
  render(<AssetLibrary gateway={gateway} />);

  await screen.findByRole("button", { name: "page-one" });
  await user.click(screen.getByRole("button", { name: "더 보기" }));

  assert.ok(await screen.findByRole("button", { name: "page-two" }));
  // Appended, not replaced: the first page must stay reachable.
  assert.ok(screen.getByRole("button", { name: "page-one" }));
  assert.equal(calls.at(-1)?.cursor, "cursor-1");
  // Exhausted paging removes the control rather than leaving a button that
  // does nothing.
  expect(screen.queryByRole("button", { name: "더 보기" })).not.toBeInTheDocument();
});

test("더 보기 moves focus to the first newly loaded asset instead of stranding it on the removed control", async () => {
  const user = userEvent.setup();
  const first = assetNamed("focus-page-one", "10101010-1010-4010-8010-101010101011");
  const second = assetNamed("focus-page-two", "10101010-1010-4010-8010-101010101012");
  const { gateway } = libraryGateway((query) =>
    query.cursor === "cursor-1"
      ? { items: [second], nextCursor: null }
      : { items: [first], nextCursor: "cursor-1" },
  );
  render(<AssetLibrary gateway={gateway} />);

  await screen.findByRole("button", { name: "focus-page-one" });
  await user.click(screen.getByRole("button", { name: "더 보기" }));

  const appended = await screen.findByRole("button", { name: "focus-page-two" });
  expect(appended).toHaveFocus();
});

test("offers no 더 보기 control when the server reports no next cursor", async () => {
  render(<AssetLibrary gateway={gatewayOf({ asset: ASSET, usages: [], hasPublicationHistory: false })} />);

  await screen.findByRole("button", { name: "boundary" });
  expect(screen.queryByRole("button", { name: "더 보기" })).not.toBeInTheDocument();
});

test("a new search restarts paging from the first page instead of carrying the old cursor", async () => {
  const user = userEvent.setup();
  const first = assetNamed("reset-page-one", "20202020-2020-4020-8020-202020202021");
  const second = assetNamed("reset-page-two", "20202020-2020-4020-8020-202020202022");
  const found = assetNamed("reset-found", "20202020-2020-4020-8020-202020202023");
  const { gateway, calls } = libraryGateway((query) => {
    if (query.q === "reset-found") return { items: [found], nextCursor: null };
    return query.cursor === "cursor-1"
      ? { items: [second], nextCursor: null }
      : { items: [first], nextCursor: "cursor-1" };
  });
  render(<AssetLibrary gateway={gateway} />);

  await screen.findByRole("button", { name: "reset-page-one" });
  await user.click(screen.getByRole("button", { name: "더 보기" }));
  await screen.findByRole("button", { name: "reset-page-two" });

  await user.type(screen.getByLabelText("Asset 검색"), "reset-found");
  await user.click(screen.getByRole("button", { name: "검색" }));

  assert.ok(await screen.findByRole("button", { name: "reset-found" }));
  expect(screen.queryByRole("button", { name: "reset-page-one" })).not.toBeInTheDocument();
  expect(screen.queryByRole("button", { name: "reset-page-two" })).not.toBeInTheDocument();
  assert.equal(calls.at(-1)?.cursor, undefined);
});

test("a slow earlier search never overwrites the newer search's results", async () => {
  const user = userEvent.setup();
  const initial = assetNamed("race-initial", "30303030-3030-4030-8030-303030303031");
  const slow = assetNamed("race-slow", "30303030-3030-4030-8030-303030303032");
  const fast = assetNamed("race-fast", "30303030-3030-4030-8030-303030303033");
  const pending: Array<{ query: ListCall; settle: (page: ListPage) => void }> = [];
  const gateway = {
    async listAssets(query: ListCall) {
      return new Promise<ListPage>((resolve) => {
        pending.push({ query, settle: resolve });
      }) as never;
    },
    async getAsset() {
      return { asset: ASSET, usages: [], hasPublicationHistory: false } as never;
    },
    async uploadAsset() {
      throw new Error("not used");
    },
    async updateAssetMetadata() {
      return ASSET;
    },
    async deleteAsset() {},
  } as never;
  render(<AssetLibrary gateway={gateway} />);

  await waitFor(() => assert.equal(pending.length, 1));
  await act(async () => {
    pending[0]!.settle({ items: [initial], nextCursor: null });
  });
  await screen.findByRole("button", { name: "race-initial" });

  const input = screen.getByLabelText("Asset 검색");
  await user.clear(input);
  await user.type(input, "slow");
  await user.click(screen.getByRole("button", { name: "검색" }));
  await waitFor(() => assert.equal(pending.length, 2));

  await user.clear(input);
  await user.type(input, "fast");
  await user.click(screen.getByRole("button", { name: "검색" }));
  await waitFor(() => assert.equal(pending.length, 3));

  await act(async () => {
    pending[2]!.settle({ items: [fast], nextCursor: null });
  });
  await screen.findByRole("button", { name: "race-fast" });

  // The abandoned "slow" request lands last. Nothing about it may reach the
  // screen: the user is looking at "fast" results.
  await act(async () => {
    pending[1]!.settle({ items: [slow], nextCursor: null });
  });

  expect(screen.queryByRole("button", { name: "race-slow" })).not.toBeInTheDocument();
  assert.ok(screen.getByRole("button", { name: "race-fast" }));
});

test("a search that matches nothing says so instead of claiming no asset was ever uploaded", async () => {
  const user = userEvent.setup();
  const { gateway } = libraryGateway((query) =>
    query.q ? { items: [], nextCursor: null } : { items: [ASSET], nextCursor: null },
  );
  render(<AssetLibrary gateway={gateway} />);

  await screen.findByRole("button", { name: "boundary" });
  await user.type(screen.getByLabelText("Asset 검색"), "없는키");
  await user.click(screen.getByRole("button", { name: "검색" }));

  assert.ok(await screen.findByText("조건에 맞는 Asset이 없습니다"));
  expect(screen.queryByText("등록된 Asset이 없습니다")).not.toBeInTheDocument();
});