import { test, expect, Page } from "@playwright/test";

// ---------------------------------------------------------------------------
// Helpers
// ---------------------------------------------------------------------------

async function loginAs(page: Page, email: string, password: string) {
  await page.goto("/login");
  await page.fill('input[name="email"]', email);
  await page.fill('input[name="password"]', password);
  await page.click('button[type="submit"]');
  // Wait for redirect away from login
  await page.waitForURL((url) => !url.pathname.includes("/login"), {
    timeout: 10000,
  });
}

// ---------------------------------------------------------------------------
// 1. Login Page
// ---------------------------------------------------------------------------

test.describe("Login Page", () => {
  test("renders login form with email and password fields", async ({
    page,
  }) => {
    await page.goto("/login");

    await expect(page.locator("h1")).toContainText("NetForge");
    await expect(page.locator('input[name="email"]')).toBeVisible();
    await expect(page.locator('input[name="password"]')).toBeVisible();
    await expect(page.locator('button[type="submit"]')).toBeVisible();
    await expect(page.locator('a[href="/signup"]')).toBeVisible();
  });

  test("shows error on invalid credentials", async ({ page }) => {
    await page.goto("/login");
    await page.fill('input[name="email"]', "bad@example.com");
    await page.fill('input[name="password"]', "wrongpassword");
    await page.click('button[type="submit"]');

    // Should stay on login page and show error
    await page.waitForTimeout(2000);
    const url = page.url();
    expect(url).toContain("/login");
    // Check for error message or error in URL
    const hasError =
      url.includes("error") ||
      (await page.locator('[role="alert"], .text-red, .error').count()) > 0;
    expect(hasError).toBe(true);
  });

  test("successful admin login redirects to dashboard", async ({ page }) => {
    await loginAs(page, "admin@demo.com", "admin123");

    // Should land on dashboard or a valid authenticated page
    const url = page.url();
    expect(url).not.toContain("/login");
  });

  test("session persists across page refresh", async ({ page }) => {
    await loginAs(page, "admin@demo.com", "admin123");

    // Reload the page
    await page.reload();
    await page.waitForLoadState("networkidle");

    // Should still be on an authenticated page (not redirected to login)
    const url = page.url();
    expect(url).not.toContain("/login");
  });
});

// ---------------------------------------------------------------------------
// 2. Signup Page
// ---------------------------------------------------------------------------

test.describe("Signup Page", () => {
  test("renders signup form with all required fields", async ({ page }) => {
    await page.goto("/signup");

    await expect(page.locator("h1, h2").first()).toBeVisible();
    // Check for key form fields
    const inputs = await page.locator("input").count();
    expect(inputs).toBeGreaterThanOrEqual(4); // name, email, password, confirm
    await expect(page.locator('button[type="submit"]')).toBeVisible();
  });

  test("can register a new tenant", async ({ page }) => {
    const ts = Date.now();
    await page.goto("/signup");

    // Fill in signup form fields
    // The form has: company name, owner name, email, password, confirm password
    const allInputs = page.locator("input");
    const inputCount = await allInputs.count();

    // Try to fill known field patterns
    const companyInput = page.locator(
      'input[name*="company"], input[name*="tenant"], input[name*="business"], input[placeholder*="company" i], input[placeholder*="ISP" i]'
    );
    if ((await companyInput.count()) > 0) {
      await companyInput.first().fill(`UAT Test ISP ${ts}`);
    }

    const nameInputs = page.locator(
      'input[name*="name"]:not([name*="company"]):not([name*="tenant"]):not([name*="business"]):not([type="email"]):not([type="password"])'
    );
    for (let i = 0; i < (await nameInputs.count()); i++) {
      const name = await nameInputs.nth(i).getAttribute("name");
      if (name?.includes("first") || name?.includes("First")) {
        await nameInputs.nth(i).fill("UAT");
      } else if (name?.includes("last") || name?.includes("Last")) {
        await nameInputs.nth(i).fill("Tester");
      } else {
        await nameInputs.nth(i).fill("UAT Tester");
      }
    }

    const emailInput = page.locator('input[type="email"], input[name="email"]');
    if ((await emailInput.count()) > 0) {
      await emailInput.first().fill(`uat-${ts}@test.com`);
    }

    const passwordInputs = page.locator('input[type="password"]');
    const pwCount = await passwordInputs.count();
    for (let i = 0; i < pwCount; i++) {
      await passwordInputs.nth(i).fill("TestPass123!");
    }

    // Submit
    await page.click('button[type="submit"]');

    // Wait for result — should redirect to login with success or show success message
    await page.waitForTimeout(3000);
    const url = page.url();
    const pageText = await page.textContent("body");
    const success =
      url.includes("registered") ||
      url.includes("login") ||
      url.includes("success") ||
      pageText?.toLowerCase().includes("created") ||
      pageText?.toLowerCase().includes("success") ||
      pageText?.toLowerCase().includes("registered");
    expect(success).toBe(true);
  });
});

// ---------------------------------------------------------------------------
// 3. Dashboard Page (Authenticated)
// ---------------------------------------------------------------------------

test.describe("Dashboard", () => {
  test.beforeEach(async ({ page }) => {
    await loginAs(page, "admin@demo.com", "admin123");
  });

  test("dashboard page loads", async ({ page }) => {
    await page.goto("/dashboard");
    await page.waitForLoadState("networkidle");

    // Page should render without error
    const status = page.url();
    expect(status).toContain("/dashboard");

    // Check for dashboard content (may be minimal since API-only was built)
    const body = await page.textContent("body");
    expect(body).toBeTruthy();
  });

  test("dashboard is not accessible when logged out", async ({ page }) => {
    // Clear cookies to simulate logout
    await page.context().clearCookies();

    await page.goto("/dashboard");
    await page.waitForLoadState("networkidle");

    // Should redirect to login
    const url = page.url();
    expect(url).toContain("/login");
  });
});

// ---------------------------------------------------------------------------
// 4. Super-Admin Panel
// ---------------------------------------------------------------------------

test.describe("Super-Admin Panel", () => {
  test("super-admin can access tenant management", async ({ page }) => {
    await loginAs(page, "superadmin@netforge.com", "super123");

    await page.goto("/admin/tenants");
    await page.waitForLoadState("networkidle");

    // Should see tenant list
    const body = await page.textContent("body");
    expect(body).toContain("Demo ISP");
  });

  test("regular admin cannot access super-admin panel", async ({ page }) => {
    await loginAs(page, "admin@demo.com", "admin123");

    await page.goto("/admin/tenants");
    await page.waitForLoadState("networkidle");

    // Should be forbidden or redirected
    const url = page.url();
    const body = await page.textContent("body");
    const blocked =
      url.includes("/login") ||
      url.includes("/dashboard") ||
      body?.toLowerCase().includes("forbidden") ||
      body?.toLowerCase().includes("denied") ||
      body?.toLowerCase().includes("403");
    expect(blocked).toBe(true);
  });
});

// ---------------------------------------------------------------------------
// 5. API Smoke Tests via Page Context
// ---------------------------------------------------------------------------

test.describe("API via authenticated browser context", () => {
  test.beforeEach(async ({ page }) => {
    await loginAs(page, "admin@demo.com", "admin123");
  });

  test("GET /api/subscribers returns valid JSON", async ({ page }) => {
    const response = await page.goto("/api/subscribers");
    expect(response?.status()).toBe(200);
    const json = await response?.json();
    expect(json).toHaveProperty("subscribers");
    expect(json).toHaveProperty("total");
  });

  test("GET /api/dashboard returns dashboard summary", async ({ page }) => {
    const response = await page.goto("/api/dashboard");
    expect(response?.status()).toBe(200);
    const json = await response?.json();
    expect(json).toHaveProperty("revenue");
    expect(json).toHaveProperty("subscribers");
    expect(json).toHaveProperty("cashFlow");
  });

  test("GET /api/service-plans returns array", async ({ page }) => {
    const response = await page.goto("/api/service-plans");
    expect(response?.status()).toBe(200);
    const json = await response?.json();
    expect(Array.isArray(json)).toBe(true);
  });

  test("GET /api/tickets returns tickets", async ({ page }) => {
    const response = await page.goto("/api/tickets");
    expect(response?.status()).toBe(200);
    const json = await response?.json();
    expect(json).toHaveProperty("tickets");
  });

  test("GET /api/zones returns array", async ({ page }) => {
    const response = await page.goto("/api/zones");
    expect(response?.status()).toBe(200);
    const json = await response?.json();
    expect(Array.isArray(json)).toBe(true);
  });

  test("GET /api/reports/trial-balance returns balanced books", async ({
    page,
  }) => {
    const response = await page.goto("/api/reports/trial-balance");
    expect(response?.status()).toBe(200);
    const json = await response?.json();
    expect(json).toHaveProperty("isBalanced");
    expect(json.isBalanced).toBe(true);
  });
});