// @vitest-environment jsdom

import { fireEvent, render, screen, waitFor, within } from "@testing-library/react";
import userEvent from "@testing-library/user-event";
import type { ReactNode } from "react";
import { MemoryRouter } from "react-router-dom";
import { afterEach, describe, expect, it, vi } from "vitest";

import { createTechLogFeatureInstalledInput } from "../../../src/features/tech-log/adapters/create-tech-log-feature-input.ts";
import { MOCK_STUDIO_INSTALL_CONTEXT } from "../../helpers/studio-install-context.ts";
import { FIXTURE_IDS } from "../../../src/features/tech-log/adapters/mock/fixtures.ts";
import type { StudioGateway } from "../../../src/features/tech-log/application/ports/studio-gateway.ts";
import { DocumentEditorScreen } from "../../../src/features/tech-log/presentation/studio/components/document-editor-screen.tsx";
import { StudioProvider } from "../../../src/features/tech-log/presentation/studio/studio-provider.tsx";
import { createManagementGatewayStub } from "../../helpers/management-gateway-stub.ts";

afterEach(() => vi.restoreAllMocks());

function renderEditor(
  documentId: string,
  gateway: StudioGateway = createTechLogFeatureInstalledInput(MOCK_STUDIO_INSTALL_CONTEXT).input.createStudioGateway(),
) {
  // CASE editors mount the Asset Picker (Task 10), which uses the throwing
  // `useStudioAssetGateway()` accessor -- a test harness that renders it must
  // supply `createAssetGateway`, the same as `StudioShell` always does.
  const assetGateway = createTechLogFeatureInstalledInput(MOCK_STUDIO_INSTALL_CONTEXT)
    .input.createStudioAssetGateway();
  return render(
    <MemoryRouter initialEntries={[`/studio/documents/${documentId}/edit`]}>
      <StudioProvider
      createManagementGateway={createManagementGatewayStub} createGateway={() => gateway} createAssetGateway={() => assetGateway}>
        <DocumentEditorScreen documentId={documentId} />
      </StudioProvider>
    </MemoryRouter>,
  );
}

function labelsIn(container: HTMLElement, selector: string): string[] {
  return Array.from(
    container.querySelectorAll<HTMLElement>(selector),
    (label) => label.querySelector(":scope > span")?.textContent ?? "",
  );
}

describe("TechLog Studio document editor", () => {
  it("loads the Case controls in source order, owns dirty state, and renders an instant local preview", async () => {
    const user = userEvent.setup();
    const base = createTechLogFeatureInstalledInput(MOCK_STUDIO_INSTALL_CONTEXT).input.createStudioGateway();
    const calls = { save: 0, validate: 0, preview: 0, publish: 0 };
    const gateway = {
      ...base,
      saveDocument(...args: Parameters<StudioGateway["saveDocument"]>) {
        calls.save += 1;
        return base.saveDocument(...args);
      },
      validateDocument(...args: Parameters<StudioGateway["validateDocument"]>) {
        calls.validate += 1;
        return base.validateDocument(...args);
      },
      createPreview(...args: Parameters<StudioGateway["createPreview"]>) {
        calls.preview += 1;
        return base.createPreview(...args);
      },
      publishDocument(...args: Parameters<StudioGateway["publishDocument"]>) {
        calls.publish += 1;
        return base.publishDocument(...args);
      },
    } satisfies StudioGateway;
    const view = renderEditor(FIXTURE_IDS.redisAdapterCase, gateway);

    expect(await screen.findByLabelText("제목")).toHaveValue(
      "Redis Adapter가 도메인 TTL 정책을 소유하지 않는 이유",
    );
    expect(screen.getByLabelText("slug")).toHaveValue("redis-adapter-ttl-boundary");
    expect(screen.getByLabelText("요약")).toHaveValue(
      "만료 정책과 명령 실행 책임을 분리했습니다.",
    );
    expect(screen.getByLabelText("Topic")).toHaveValue(FIXTURE_IDS.topicRedis);
    expect(screen.getByLabelText("Project")).toHaveValue(FIXTURE_IDS.projectBackend);
    expect(labelsIn(view.container, ".studio-field")).toEqual([
      "제목",
      "slug",
      "요약",
      "Topic",
      "Project",
      "문제",
      "결론",
      "검증 환경",
      "재현 조건",
      "마지막 검증일",
      "본문 Markdown",
    ]);
    expect(screen.getByLabelText("문제")).toHaveValue("저장 기술이 정책을 소유했습니다.");
    expect(screen.getByLabelText("본문 Markdown")).toHaveValue(
      "## 책임 경계\n\n정책과 명령을 분리합니다.",
    );
    expect(screen.getByRole("status", { name: "편집 상태" })).toHaveTextContent("저장됨");

    await user.clear(screen.getByLabelText("제목"));
    await user.type(screen.getByLabelText("제목"), "편집한 Redis 경계");
    expect(screen.getByRole("status", { name: "편집 상태" })).toHaveTextContent(
      "저장되지 않음",
    );
    expect(screen.getByRole("complementary", { name: "작업 상태" })).toHaveTextContent(
      "저장 버전4종류CASE",
    );
    // 작성자가 밟는 단계는 저장과 게시 둘뿐이다. 예전에는 검증 → 미리보기 → 게시 세 화면을
    // 차례로 거쳐야 했는데, 그 셋은 백엔드가 게시 요청에 요구하는 값을 만들기 위한 것이지
    // 작성자에게 물어볼 것이 아니었다 — 지금은 게시 버튼 뒤에서 잇달아 부른다.
    const rail = screen.getByRole("complementary", { name: "작업 상태" });
    expect(within(rail).getAllByRole("button").map((button) => button.textContent)).toEqual([
      "저장",
      "게시",
    ]);
    expect(within(rail).queryAllByRole("link")).toHaveLength(0);

    const editTab = screen.getByRole("tab", { name: "편집" });
    const previewTab = screen.getByRole("tab", { name: "즉시 미리보기" });
    editTab.focus();
    await user.keyboard("{ArrowRight}");
    expect(previewTab).toHaveFocus();
    expect(previewTab).toHaveAttribute("aria-selected", "true");
    expect(
      within(screen.getByRole("tabpanel", { name: "즉시 미리보기" })).getByRole(
        "heading",
        { level: 1, name: "편집한 Redis 경계" },
      ),
    ).toBeVisible();
    await user.keyboard("{Home}");
    expect(editTab).toHaveFocus();
    expect(screen.getByLabelText("제목")).toHaveValue("편집한 Redis 경계");
    expect(calls).toEqual({ save: 0, validate: 0, preview: 0, publish: 0 });
  });

  it("adds, reorders, and removes relations with source accessibility names", async () => {
    const user = userEvent.setup();
    renderEditor(FIXTURE_IDS.redisAdapterCase);
    await screen.findByLabelText("제목");

    await user.click(screen.getByRole("button", { name: "관계 추가" }));
    await user.click(screen.getByRole("button", { name: "관계 추가" }));
    await user.selectOptions(
      screen.getByLabelText("관계 1 대상"),
      FIXTURE_IDS.fetchJoinCase,
    );
    await user.type(screen.getByLabelText("관계 1 이유"), "첫 번째 근거");
    await user.selectOptions(
      screen.getByLabelText("관계 2 대상"),
      FIXTURE_IDS.stateNonceReference,
    );
    await user.type(screen.getByLabelText("관계 2 이유"), "두 번째 근거");

    const relationRows = screen.getAllByLabelText(/관계 \d 대상/).map((select) =>
      select.closest(".studio-relation-item") as HTMLElement,
    );
    await user.click(within(relationRows[1]!).getByRole("button", { name: "위로" }));
    expect(screen.getByLabelText("관계 1 대상")).toHaveValue(
      FIXTURE_IDS.stateNonceReference,
    );
    expect(screen.getByLabelText("관계 1 이유")).toHaveValue("두 번째 근거");

    const firstRow = screen.getByLabelText("관계 1 대상").closest(
      ".studio-relation-item",
    ) as HTMLElement;
    await user.click(within(firstRow).getByRole("button", { name: "삭제" }));
    expect(screen.getByLabelText("관계 1 대상")).toHaveValue(FIXTURE_IDS.fetchJoinCase);
    expect(screen.queryByLabelText("관계 2 대상")).not.toBeInTheDocument();
  });

  it("preserves Reference loaded values and ordered rule/text-list behavior", async () => {
    const user = userEvent.setup();
    renderEditor(FIXTURE_IDS.stateNonceReference);

    expect(await screen.findByLabelText("목적")).toHaveValue(
      "각 검증값의 책임을 다시 찾는 기준입니다.",
    );
    expect(screen.getByLabelText("규칙 1 제목")).toHaveValue("state는 요청을 연결합니다");
    expect(screen.getByLabelText("적용 조건 1")).toHaveValue("Code Flow를 구성할 때");
    expect(screen.getByLabelText("마지막 검증일")).toHaveValue("2026-08-13");
    expect(screen.getByText("아직 입력한 항목이 없습니다.")).toBeVisible();

    await user.click(screen.getByRole("button", { name: "규칙 추가" }));
    await user.type(screen.getByLabelText("규칙 2 제목"), "nonce는 Token을 연결합니다");
    const secondRule = screen.getByLabelText("규칙 2 제목").closest(
      ".studio-ordered-item",
    ) as HTMLElement;
    await user.click(within(secondRule).getByRole("button", { name: "위로" }));
    expect(screen.getByLabelText("규칙 1 제목")).toHaveValue(
      "nonce는 Token을 연결합니다",
    );
    await user.click(
      within(
        screen.getByLabelText("규칙 1 제목").closest(".studio-ordered-item") as HTMLElement,
      ).getByRole("button", { name: "삭제" }),
    );
    expect(screen.getByLabelText("규칙 1 제목")).toHaveValue("state는 요청을 연결합니다");

    await user.click(screen.getByRole("button", { name: "적용 조건 추가" }));
    await user.type(screen.getByLabelText("적용 조건 2"), "두 번째 적용 조건");
    const secondApplyWhen = screen.getByLabelText("적용 조건 2").closest(
      ".studio-ordered-item",
    ) as HTMLElement;
    await user.click(within(secondApplyWhen).getByRole("button", { name: "위로" }));
    expect(screen.getByLabelText("적용 조건 1")).toHaveValue("두 번째 적용 조건");
    await user.click(
      within(
        screen.getByLabelText("적용 조건 1").closest(".studio-ordered-item") as HTMLElement,
      ).getByRole("button", { name: "삭제" }),
    );
    expect(screen.getByLabelText("적용 조건 1")).toHaveValue("Code Flow를 구성할 때");
    expect(screen.getByRole("status", { name: "편집 상태" })).toHaveTextContent(
      "저장되지 않음",
    );
  });

  it("preserves Question field differences, list controls, and conditional resolution fields", async () => {
    const user = userEvent.setup();
    renderEditor(FIXTURE_IDS.edgeTokenQuestion);

    expect(await screen.findByLabelText("질문 상태")).toHaveValue("OPEN");
    expect(screen.getByLabelText("미지수 1")).toHaveValue("신뢰 헤더 위조 가능성");
    expect(screen.getByRole("textbox", { name: "다음 검증" })).toHaveValue(
      "위협 모델을 비교합니다.",
    );
    expect(screen.queryByLabelText("해결 요약")).not.toBeInTheDocument();

    await user.click(screen.getByRole("button", { name: "사실 추가" }));
    await user.type(screen.getByLabelText("사실 1"), "Edge가 서명을 검증합니다");
    await user.click(screen.getByRole("button", { name: "선택지 추가" }));
    expect(screen.getByLabelText("선택지 1 제목")).toHaveValue("");
    expect(screen.getByLabelText("선택지 1 설명")).toHaveValue("");

    await user.selectOptions(screen.getByLabelText("질문 상태"), "RESOLVED");
    expect(screen.getByLabelText("해결 요약")).toHaveValue("");
    expect(screen.getByLabelText("해결 근거")).toHaveValue("");
    expect(screen.getByLabelText("근거 링크 문구")).toHaveValue("");
    expect(screen.getByRole("status", { name: "편집 상태" })).toHaveTextContent(
      "저장되지 않음",
    );
  });

  it("renders source not-found and retry surfaces for document loading", async () => {
    const unknown = renderEditor("aaaaaaaa-aaaa-4aaa-8aaa-aaaaaaaaaaaa");
    expect(
      await screen.findByRole("heading", { name: "Studio 화면을 찾을 수 없습니다" }),
    ).toBeVisible();
    expect(screen.getByRole("link", { name: "작업본으로 돌아가기" })).toHaveAttribute(
      "href",
      "/studio/documents",
    );
    unknown.unmount();

    const base = createTechLogFeatureInstalledInput(MOCK_STUDIO_INSTALL_CONTEXT).input.createStudioGateway();
    const getDocument = vi
      .fn<StudioGateway["getDocument"]>()
      .mockRejectedValueOnce(new Error("offline"))
      .mockImplementation((id, options) => base.getDocument(id, options));
    renderEditor(FIXTURE_IDS.redisAdapterCase, { ...base, getDocument });
    expect(await screen.findByRole("alert")).toHaveTextContent(
      "문서를 불러오지 못했습니다offline",
    );
    fireEvent.click(screen.getByRole("button", { name: "다시 시도" }));
    await waitFor(() => expect(screen.getByLabelText("제목")).toBeVisible());
    expect(getDocument).toHaveBeenCalledTimes(2);
  });
});