import { QueryClient, QueryClientProvider } from "@tanstack/react-query";
import { act, render, screen, waitFor, within } from "@testing-library/react";
import userEvent from "@testing-library/user-event";
import { http, HttpResponse } from "msw";
import { beforeEach, expect, test, vi } from "vitest";
import { server } from "../test/msw";
import { canonicalWorkspaceFixture, workspaceRevisionFixture, workspaceSummaryFixture } from "../test/workspace-fixtures";
import { WorkspaceManager } from "./WorkspaceManager";
import { setAuthState } from "../auth/authState";
import { queryClient } from "../app/queryClient";

const workspace = canonicalWorkspaceFixture("psd-clinical");
const revision = workspaceRevisionFixture("psd-clinical");
const authenticatedWorkspaceUser = {
  issuer: "local", subject: "workspace-user", roles: ["user"] as const,
  permissions: ["workspace.manage", "workspace.secrets.manage"], isAdmin: false,
  csrfToken: "w".repeat(43), session: null,
};
const requirement = {
  id: "dwh.password",
  connector: "dwh",
  label: "Data warehouse password",
  description: "Password used by the selected data warehouse connection.",
  input: "password",
  required: true,
  configured: false,
};

const readyAuthentication = {
  ready: true,
  mode: "none",
  checks: [{ level: "info", code: "auth_ready", message: "Authentication is ready." }],
};

function runtimeConfiguration(configured = false) {
  return {
    workspaceId: "psd-clinical",
    revision,
    configurationState: configured ? "ready" : "configuration_required",
    requirements: [{ ...requirement, configured }],
  };
}

function renderManager(onClose = vi.fn()) {
  const client = new QueryClient({ defaultOptions: { queries: { retry: false } } });
  return {
    onClose,
    ...render(
      <QueryClientProvider client={client}>
        <WorkspaceManager open onClose={onClose} canManageWorkspace canManageSecrets />
      </QueryClientProvider>,
    ),
  };
}

function renderDeniedManager() {
  const client = new QueryClient({ defaultOptions: { queries: { retry: false } } });
  return render(
    <QueryClientProvider client={client}>
      <WorkspaceManager open onClose={vi.fn()} canManageWorkspace={false} canManageSecrets={false} />
    </QueryClientProvider>,
  );
}

beforeEach(() => {
  localStorage.clear();
  setAuthState(authenticatedWorkspaceUser);
  server.use(
    http.get("/api/workspace-registry/status", () => HttpResponse.json({
      branch: "main",
      head: "a".repeat(40),
      ahead: 0,
      behind: 0,
      degraded: false,
      repository: {
        host: "git.example.test",
        repository: "analytics/thoth-workspaces",
        transport: "ssh",
      },
    })),
    http.get("/api/workspaces", () => HttpResponse.json([
      workspaceSummaryFixture("psd-clinical", {
        displayName: "PSD Clinical",
        description: "Clinical data",
        configurationState: "configuration_required",
        revision,
      }),
    ])),
    http.get("/api/workspaces/psd-clinical", () => HttpResponse.json({ workspace, revision })),
    http.get("/api/workspaces/psd-clinical/runtime-configuration", () => (
      HttpResponse.json(runtimeConfiguration())
    )),
  );
});

test("defaults workspace mutations and secrets to denied", async () => {
  renderDeniedManager();
  expect(await screen.findByRole("heading", { name: "Workspace management" })).toBeVisible();
  expect(screen.queryByRole("button", { name: "Update workspace repository" })).not.toBeInTheDocument();
  await userEvent.click(await screen.findByRole("button", { name: "PSD Clinical" }));
  expect(await screen.findByRole("heading", { name: "Workspace-specific actions" })).toBeVisible();
  expect(screen.queryByRole("button", { name: "Validate workspace source" })).not.toBeInTheDocument();
  expect(screen.queryByRole("button", { name: "Test workspace connections" })).not.toBeInTheDocument();
  expect(screen.queryByRole("heading", { name: "Runtime secrets" })).not.toBeInTheDocument();
});

test("uses a tall viewport area and keeps the workspace content scrollable", () => {
  renderManager();

  const dialog = screen.getByRole("dialog");
  expect(dialog).toHaveClass(
    "h-[86vh]",
    "w-[94vw]",
    "sm:w-[70vw]",
    "max-w-[94vw]",
  );
  expect(screen.getByRole("main")).toHaveClass("overflow-y-auto");
});

test("offers a button above the workspace list that returns to Level 1", async () => {
  const user = userEvent.setup();
  const onClose = vi.fn();
  renderManager(onClose);

  await user.click(await screen.findByRole("button", { name: "PSD Clinical" }));
  expect(await screen.findByRole("heading", { name: "Workspace-specific actions" })).toBeVisible();

  const navigation = screen.getByRole("navigation", { name: "Workspaces" });
  const backButton = within(navigation).getByRole("button", { name: "Back to Level 1" });
  expect(backButton).toHaveClass("border-border", "bg-card", "w-full");
  expect(backButton.compareDocumentPosition(within(navigation).getByText("Available workspaces"))
    & Node.DOCUMENT_POSITION_FOLLOWING).toBeTruthy();
  await user.click(backButton);

  expect(onClose).not.toHaveBeenCalled();
  expect(screen.getByTestId("workspace-overview")).toBeVisible();
  expect(screen.queryByRole("heading", { name: "Workspace-specific actions" })).not.toBeInTheDocument();
});

test("level one explains the read-only Git sequence and the repository update button", async () => {
  const user = userEvent.setup();
  server.use(http.post("/api/workspace-registry/pull", () => HttpResponse.json({
    branch: "main", head: "b".repeat(40), ahead: 0, behind: 0, degraded: false,
  })));
  renderManager();

  expect(await screen.findByRole("heading", { name: "Workspace management" })).toBeVisible();
  const overview = screen.getByTestId("workspace-overview");
  expect(within(overview).getByText(/Git server such as GitHub, GitLab, or Gitea/i)).toBeVisible();
  expect(within(overview).getByText(/configured during ThothII installation/i)).toBeVisible();
  const repositoryStep = within(overview).getAllByRole("listitem")[0];
  expect(repositoryStep).toHaveTextContent(/create a workspace repository/i);
  expect(repositoryStep).toHaveTextContent(/one directory for each workspace/i);
  expect(repositoryStep).toHaveTextContent(/thoth-workspaces\.yaml/i);
  expect(repositoryStep).toHaveTextContent(/database connection/i);
  expect(repositoryStep).toHaveTextContent(/Evidence sources/i);
  expect(repositoryStep).toHaveTextContent(/vector-database collection/i);
  expect(within(overview).getByRole("link", { name: /workspace authoring instructions on GitHub/i })).toHaveAttribute(
    "href",
    "https://github.com/mptyl/ThothII/blob/main/docs/install/local-workspace-registry.md#prepare-and-publish-a-workspace-source",
  );
  expect(within(overview).getAllByText(/managed read-only checkout/i)).toHaveLength(2);
  expect(within(overview).getByText(/current active revision remains unchanged/i)).toBeVisible();
  expect(within(overview).getByText(/No workspace selection is required/i)).toBeVisible();
  expect(await within(overview).findByText("git.example.test/analytics/thoth-workspaces")).toBeVisible();

  await user.click(screen.getByRole("button", { name: "Update workspace repository" }));
  expect(await screen.findByText("Workspace repository updated and validated.")).toBeVisible();
  expect(screen.getByText(/create a workspace repository/i)).toBeInTheDocument();
  expect(screen.queryByText(/import|export|bundle/i)).not.toBeInTheDocument();
});

test("workspace-specific commands remain isolated until a workspace is selected", async () => {
  const user = userEvent.setup();
  renderManager();

  expect(screen.queryByRole("heading", { name: "Workspace-specific actions" })).not.toBeInTheDocument();
  await user.click(await screen.findByRole("button", { name: "PSD Clinical" }));

  expect(await screen.findByRole("heading", { name: "Workspace-specific actions" })).toBeVisible();
  expect(screen.getByText(/reads this revision without modifying or publishing it/i)).toBeVisible();
  expect(screen.getByText(/checks workspace.yaml and the required workspace directories/i)).toBeVisible();
  expect(screen.getByText(/temporary decrypted credentials/i)).toBeVisible();
  const databaseField = screen.getByText("Database").parentElement;
  expect(databaseField).not.toBeNull();
  expect(databaseField).toHaveTextContent("engine: postgres");
  expect(databaseField).toHaveTextContent("database: database");
  expect(databaseField).toHaveTextContent("schema: public");
  expect(screen.getByRole("button", { name: "Validate workspace source" })).toBeVisible();
  expect(screen.getByRole("button", { name: "Test workspace connections" })).toBeVisible();
});

test("keeps validation and connection results inside their respective action cards", async () => {
  const user = userEvent.setup();
  server.use(
    http.post("/api/workspaces/validate", () => HttpResponse.json({
      workspace, contract: {}, activatable: true, diagnostics: [], authentication: readyAuthentication,
    })),
    http.post("/api/workspaces/psd-clinical/test", () => HttpResponse.json({
      activatable: false,
      diagnostics: [{ level: "error", code: "connector_unavailable", message: "Connector diagnostic failed." }],
      authentication: readyAuthentication,
    })),
  );
  renderManager();
  await user.click(await screen.findByRole("button", { name: "PSD Clinical" }));

  const validationCard = screen.getByTestId("workspace-validation-card");
  const connectionCard = screen.getByTestId("workspace-connection-card");
  await user.click(within(validationCard).getByRole("button", { name: "Validate workspace source" }));
  const validationStatus = await within(validationCard).findByRole("status");
  expect(validationStatus).toHaveTextContent("Workspace source and authentication are valid.");
  expect(validationStatus).toHaveClass("text-emerald-700");
  expect(within(connectionCard).queryByText("Workspace source and authentication are valid.")).not.toBeInTheDocument();

  await user.click(within(connectionCard).getByRole("button", { name: "Test workspace connections" }));
  expect(await within(connectionCard).findByRole("alert")).toHaveTextContent(
    "connector_unavailable: Connector diagnostic failed.",
  );
  expect(within(validationCard).queryByText("connector_unavailable: Connector diagnostic failed.")).not.toBeInTheDocument();
});

test("renders one authentication section with configured-group errors and no unmapped-group list", async () => {
  const user = userEvent.setup();
  server.use(http.post("/api/workspaces/validate", () => HttpResponse.json({
    workspace,
    contract: {},
    activatable: false,
    diagnostics: [],
    authentication: {
      ready: false,
      mode: "oidc",
      checks: [{
        level: "error",
        code: "oidc_mapped_group_missing",
        field: "Thoth Administrators",
        message: "A configured authorization group does not exist.",
      }],
    },
  })));
  renderManager();
  await user.click(await screen.findByRole("button", { name: "PSD Clinical" }));

  await user.click(screen.getByRole("button", { name: "Validate workspace source" }));

  const section = await screen.findByTestId("workspace-authentication");
  expect(within(section).getByRole("heading", { name: "Authentication" })).toBeVisible();
  expect(within(section).getByText("Failed")).toBeVisible();
  expect(within(section).getByText("oidc_mapped_group_missing: Thoth Administrators — A configured authorization group does not exist.")).toBeVisible();
  expect(within(section).queryByText(/unmapped/i)).not.toBeInTheDocument();
});

test("never renders a hostile authentication field rejected by the API decoder", async () => {
  const user = userEvent.setup();
  const attacker = "attacker-field-SENTINEL";
  server.use(http.post("/api/workspaces/validate", () => HttpResponse.json({
    workspace,
    contract: {},
    activatable: false,
    diagnostics: [],
    authentication: {
      ready: false,
      mode: "oidc",
      checks: [{ level: "error", code: "oidc_secret_missing", message: "failure", field: attacker }],
    },
  })));
  renderManager();
  await user.click(await screen.findByRole("button", { name: "PSD Clinical" }));

  await user.click(screen.getByRole("button", { name: "Validate workspace source" }));

  expect(await screen.findByRole("alert")).toBeVisible();
  expect(screen.queryByText(new RegExp(attacker))).not.toBeInTheDocument();
});

test("renders binding_ok as a green connection success", async () => {
  const user = userEvent.setup();
  server.use(
    http.post("/api/workspaces/psd-clinical/test", () => HttpResponse.json({
      activatable: true,
      diagnostics: [{ level: "info", code: "binding_ok", message: "Installation bindings and diagnostics succeeded." }],
      authentication: readyAuthentication,
    })),
  );
  renderManager();
  await user.click(await screen.findByRole("button", { name: "PSD Clinical" }));

  const connectionCard = screen.getByTestId("workspace-connection-card");
  await user.click(within(connectionCard).getByRole("button", { name: "Test workspace connections" }));
  const connectionStatus = await within(connectionCard).findByRole("status");
  expect(connectionStatus).toHaveTextContent("binding_ok: Installation bindings and diagnostics succeeded.");
  expect(connectionStatus).toHaveClass("text-emerald-700");
  expect(within(connectionCard).queryByRole("alert")).not.toBeInTheDocument();
});

test("secret fields are write-only, clear after blind save, and may be forgotten", async () => {
  const user = userEvent.setup();
  let savedBody: unknown;
  server.use(
    http.put("/api/workspaces/psd-clinical/secrets", async ({ request }) => {
      savedBody = await request.json();
      return HttpResponse.json(runtimeConfiguration(true));
    }),
    http.delete("/api/workspaces/psd-clinical/secrets/dwh.password", () => (
      HttpResponse.json(runtimeConfiguration(false))
    )),
  );
  renderManager();
  await user.click(await screen.findByRole("button", { name: "PSD Clinical" }));

  const input = await screen.findByLabelText("Data warehouse password");
  expect(input).toHaveValue("");
  expect(input).toHaveAttribute("type", "password");
  expect(screen.getByText("Not configured")).toBeVisible();
  await user.type(input, "one-time-password");
  await user.click(screen.getByRole("button", { name: "Save entered secrets" }));

  await waitFor(() => expect(savedBody).toEqual({
    values: { "dwh.password": "one-time-password" },
  }));
  expect(input).toHaveValue("");
  expect(await screen.findByText("Configured")).toBeVisible();
  expect(screen.queryByDisplayValue("one-time-password")).not.toBeInTheDocument();
  expect(localStorage.length).toBe(0);

  await user.click(screen.getByRole("button", { name: "Forget stored Data warehouse password" }));
  expect(await screen.findByText("Not configured")).toBeVisible();
});

test("a delayed runtime-secret save from user A cannot repopulate user B's cache or notice", async () => {
  let release!: () => void;
  let started!: () => void;
  let settled!: () => void;
  const held = new Promise<void>((resolve) => { release = resolve; });
  const requestStarted = new Promise<void>((resolve) => { started = resolve; });
  const requestSettled = new Promise<void>((resolve) => { settled = resolve; });
  server.use(http.put("/api/workspaces/psd-clinical/secrets", async () => {
    started();
    try {
      await held;
      return HttpResponse.json(runtimeConfiguration(true));
    } finally {
      settled();
    }
  }));
  queryClient.clear();
  setAuthState({ issuer: "local", subject: "user-a", roles: ["user"], permissions: ["workspace.secrets.manage"], isAdmin: false, csrfToken: "a".repeat(43), session: null });
  render(
    <QueryClientProvider client={queryClient}>
      <WorkspaceManager open onClose={vi.fn()} canManageWorkspace canManageSecrets />
    </QueryClientProvider>,
  );
  await userEvent.click(await screen.findByRole("button", { name: "PSD Clinical" }));
  const input = await screen.findByLabelText("Data warehouse password");
  await userEvent.type(input, "a-secret");
  await userEvent.click(screen.getByRole("button", { name: "Save entered secrets" }));
  await requestStarted;

  act(() => setAuthState({ issuer: "local", subject: "user-b", roles: ["user"], permissions: ["workspace.secrets.manage"], isAdmin: false, csrfToken: "b".repeat(43), session: null }));
  expect(queryClient.getQueryData(["workspace-runtime-configuration", "psd-clinical"])).toBeUndefined();
  release();
  await act(async () => { await requestSettled; });

  expect(queryClient.getQueryData(["workspace-runtime-configuration", "psd-clinical"])).toBeUndefined();
  expect(screen.queryByText("Runtime secrets saved. Stored values remain hidden.")).not.toBeInTheDocument();
});

test("closing clears unsaved secret fields", async () => {
  const user = userEvent.setup();
  const onClose = vi.fn();
  renderManager(onClose);
  await user.click(await screen.findByRole("button", { name: "PSD Clinical" }));
  await user.type(await screen.findByLabelText("Data warehouse password"), "unsaved-value");

  await user.click(screen.getByRole("button", { name: "Close workspace management" }));

  expect(onClose).toHaveBeenCalledTimes(1);
  expect(screen.queryByDisplayValue("unsaved-value")).not.toBeInTheDocument();
});