import { expect, test } from "@playwright/test";
import { useRealApi } from "./support";

const apiBase = process.env.E2E_API_BASE ?? "http://127.0.0.1:8000";
const publicBase = process.env.E2E_PUBLIC_BASE_URL ?? "https://vignette.chanpaca.net";
const publicApiBase = process.env.E2E_PUBLIC_API_BASE ?? "https://api-vignette.chanpaca.net";

function isLocalHostname(hostname: string): boolean {
  return hostname === "localhost" || hostname === "127.0.0.1" || hostname === "::1";
}

test.describe("auth domain policy", () => {
  test.beforeEach(async ({ page }) => {
    await useRealApi(page);
  });

  test("requires authentication for the persona catalog", async ({ page }) => {
    const response = await page.request.get("/api/personas");
    expect(response.status(), await response.text()).toBe(401);
  });

  test("allows only the configured school and operator email domains", async ({
    page,
  }, testInfo) => {
    const slug = `${testInfo.project.name}.${testInfo.workerIndex}.${testInfo.retry}.${Date.now()}`;
    const allowed = [
      `domain-learner.${slug}@hs.ac.kr`,
      `domain-admin.${slug}@twentyoz.kr`,
    ];

    for (const email of allowed) {
      const response = await page.request.post("/api/auth/dev-login", {
        data: {
          email: email.toLowerCase(),
          role: email.endsWith("@twentyoz.kr") ? "admin" : "learner",
          display_name: "Domain Policy E2E",
        },
      });
      expect(response.ok(), await response.text()).toBeTruthy();
    }

    const denied = await page.request.post("/api/auth/dev-login", {
      data: {
        email: `domain-denied.${slug}@example.com`.toLowerCase(),
        role: "learner",
        display_name: "Denied Domain",
      },
    });

    const deniedText = await denied.text();
    expect(denied.status(), deniedText).toBe(403);
    expect(deniedText).toContain("email domain is not allowed");
  });

  test("shows Google OAuth readiness without exposing a raw JSON error page", async ({
    page,
  }) => {
    const configResponse = await page.request.get("/api/auth/config");
    expect(configResponse.ok(), await configResponse.text()).toBeTruthy();
    const config = (await configResponse.json()) as {
      google_oauth_configured: boolean;
      allowed_email_domains: string[];
      redirect_uri: string;
      dev_login_enabled: boolean;
    };

    await page.goto("/login");

    const googleButtons = page.locator(".lg-obtn");
    await expect(googleButtons).toHaveCount(2);
    await expect(page.locator(".lg-policy b")).toContainText(config.allowed_email_domains);
    const redirectHost = new URL(config.redirect_uri).hostname;
    const devOAuthUnavailable =
      config.dev_login_enabled &&
      !isLocalHostname(redirectHost);
    if (config.dev_login_enabled) {
      await expect(page.locator(".lg-dev")).toBeVisible();
    } else {
      await expect(page.locator(".lg-dev")).toHaveCount(0);
    }

    if (config.google_oauth_configured && !devOAuthUnavailable) {
      await expect(googleButtons.first()).toBeEnabled();
      await expect(page.locator(".lg-config")).toHaveCount(0);
    } else {
      await expect(googleButtons.first()).toBeDisabled();
      await expect(googleButtons.nth(1)).toBeDisabled();
      await expect(page.locator(".lg-config")).toBeVisible();
      await expect(page).toHaveURL(/\/login$/);
      await expect(page.locator("body")).not.toContainText("Google OAuth is not configured");

      if (devOAuthUnavailable) {
        await expect(page.locator(".lg-config")).toContainText("로컬 테스트 계정으로 로그인");
        await page.goto("/api/auth/login?provider=google&next=%2Flearn");
        await expect(page).toHaveURL(/\/login\?oauth=local_oauth_unavailable$/);
        await expect(page.locator(".lg-error")).toContainText("로컬 개발 주소에서는 Google OAuth");
        return;
      }

      await page.goto("/api/auth/login?provider=google&next=%2Flearn");
      await expect(page).toHaveURL(/\/login\?oauth=not_configured$/);
      await expect(page.locator(".lg-error")).toContainText("Google 로그인이 아직 연결되지 않았습니다");
      await expect(page.locator("body")).not.toContainText("Google OAuth is not configured");
    }
  });

  test("shows the concrete OAuth failure reason on the login screen", async ({ page }) => {
    await page.goto("/login?oauth=provider_error");
    const error = page.locator(".lg-error");

    await expect(error).toContainText("Google이 인증 코드를 발급하지 못했습니다");
    await expect(error).toContainText("오류 코드: provider_error");
  });

  test("logs in locally with the server dev session and redirects to learner home", async ({
    page,
  }) => {
    await page.goto("/login");

    await expect(page.locator(".lg-dev")).toBeVisible();
    await Promise.all([
      page.waitForURL(/\/learn(?:$|[/?#])/),
      page.getByRole("button", { name: "로컬 테스트 계정으로 계속" }).click(),
    ]);

    const me = await page.request.get("/api/auth/me");
    expect(me.status(), await me.text()).toBe(200);
    await expect(page.getByRole("heading", { name: "오늘의 회기를 준비합니다." })).toBeVisible();
  });

  test("keeps dev login closed for the public API origin", async ({ request }) => {
    const publicHeaders = {
      origin: "https://vignette.chanpaca.net",
      "x-forwarded-host": "api-vignette.chanpaca.net",
    };

    const configResponse = await request.get(`${apiBase}/auth/config`, {
      headers: publicHeaders,
    });
    expect(configResponse.ok(), await configResponse.text()).toBeTruthy();
    const config = (await configResponse.json()) as { dev_login_enabled: boolean };
    expect(config.dev_login_enabled).toBe(false);

    const response = await request.post(`${apiBase}/auth/dev-login`, {
      headers: publicHeaders,
      data: {
        email: "public-dev-login-probe@hs.ac.kr",
        role: "learner",
        display_name: "Public Probe",
      },
    });

    expect(response.status(), await response.text()).toBe(404);
  });

  test("keeps the public login screen on real Google OAuth only", async ({ page, request }) => {
    const configResponse = await request.get(`${publicApiBase}/auth/config`, {
      headers: {
        origin: publicBase,
        "x-forwarded-host": "api-vignette.chanpaca.net",
      },
    });
    expect(configResponse.ok(), await configResponse.text()).toBeTruthy();
    const config = (await configResponse.json()) as {
      google_oauth_configured: boolean;
      allowed_email_domains: string[];
      dev_login_enabled: boolean;
    };
    expect(config).toMatchObject({
      google_oauth_configured: true,
      dev_login_enabled: false,
    });
    expect(config.allowed_email_domains).toEqual(expect.arrayContaining(["hs.ac.kr", "twentyoz.kr"]));

    await page.goto(`${publicBase}/login`, { waitUntil: "domcontentloaded" });
    await page.waitForLoadState("networkidle", { timeout: 15_000 }).catch(() => undefined);

    await expect(page.locator(".lg-obtn")).toHaveCount(2);
    await expect(page.locator(".lg-dev")).toHaveCount(0);
    await expect(page.getByText("로컬 테스트")).toHaveCount(0);
    await expect(page.getByText("로컬 테스트 계정으로 계속")).toHaveCount(0);
    await expect(page.locator("body")).not.toContainText("Google OAuth is not configured");
    await expect(page.locator(".lg-obtn").first()).toBeEnabled();

    await Promise.all([
      page.waitForURL(/accounts\.google\.com/, { timeout: 20_000 }),
      page.locator(".lg-obtn").first().click(),
    ]);
    expect(page.url()).toContain("client_id=");
    expect(page.url()).toContain("redirect_uri=https%3A%2F%2Fapi-vignette.chanpaca.net%2Fauth%2Fcallback");
  });
});