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

/**
 * Security-header and access-control smoke tests against a running build.
 *
 * Deliberately scoped to behaviour that does NOT require a seeded database, so
 * this suite is runnable against any deployed instance (set E2E_BASE_URL).
 * Checks that DO need one live in the "requires a database" block at the bottom
 * and are skipped unless E2E_DB=1.
 *
 *   npm run build && E2E=1 npm run test:e2e
 *   E2E_BASE_URL=https://staging.example.com npm run test:e2e
 */

const STATIC_PAGES = ["/terms", "/refund-policy", "/subprocessors", "/tenant-portal-info"]
const APP_PAGES = ["/login", "/signup", "/forgot-password"]
const PROTECTED = ["/dashboard", "/properties", "/tenants", "/rent", "/settings", "/admin"]

test.describe("baseline security headers", () => {
  test("every response carries the standard hardening headers", async ({ request }) => {
    const res = await request.get("/login")
    const h = res.headers()
    expect(h["x-content-type-options"]).toBe("nosniff")
    expect(h["x-frame-options"]).toBe("DENY")
    expect(h["referrer-policy"]).toBe("no-referrer")
    expect(h["strict-transport-security"]).toContain("max-age=")
  })

  test("Referrer-Policy is no-referrer so portal tokens cannot leak", async ({ request }) => {
    // Tenant-portal and calendar URLs carry their credential in the path, so a
    // Referer header would hand it to any third-party resource.
    const res = await request.get("/tenant-portal-info")
    expect(res.headers()["referrer-policy"]).toBe("no-referrer")
  })

  test("CSP forbids framing and plugins everywhere", async ({ request }) => {
    for (const path of [...STATIC_PAGES, ...APP_PAGES]) {
      const csp = (await request.get(path)).headers()["content-security-policy"] ?? ""
      expect(csp, `${path} CSP`).toContain("frame-ancestors 'none'")
      expect(csp, `${path} CSP`).toContain("object-src 'none'")
      expect(csp, `${path} CSP`).toContain("base-uri 'self'")
      expect(csp, `${path} CSP`).toContain("form-action 'self'")
    }
  })
})

test.describe("CSP nonce scoping", () => {
  // The app surface gets a strict per-request nonce. Static pages keep
  // 'unsafe-inline' because they are prerendered at build time with no nonce on
  // their script tags — serving them a fresh nonce would block every script.

  for (const path of APP_PAGES) {
    test(`${path} uses a nonce and every inline script carries it`, async ({ request }) => {
      const res = await request.get(path)
      const csp = res.headers()["content-security-policy"] ?? ""
      const nonce = csp.match(/'nonce-([A-Za-z0-9+/=]+)'/)?.[1]
      expect(nonce, `${path} should have a nonce in script-src`).toBeTruthy()
      expect(csp).not.toContain("script-src 'self' 'unsafe-inline'")

      const html = await res.text()
      const scripts = html.match(/<script[^>]*>/g) ?? []
      const unnonced = scripts.filter((s) => !s.includes(`nonce="${nonce}"`))
      expect(unnonced, `${path} has script tags without the nonce`).toEqual([])
    })
  }

  for (const path of STATIC_PAGES) {
    test(`${path} keeps the permissive policy so prerendered scripts still run`, async ({
      request,
    }) => {
      const csp = (await request.get(path)).headers()["content-security-policy"] ?? ""
      expect(csp).toContain("script-src 'self' 'unsafe-inline'")
      expect(csp).not.toMatch(/'nonce-/)
    })
  }

  test("each request gets a fresh nonce", async ({ request }) => {
    const nonceOf = async () =>
      ((await request.get("/login")).headers()["content-security-policy"] ?? "").match(
        /'nonce-([A-Za-z0-9+/=]+)'/
      )?.[1]
    const [a, b] = [await nonceOf(), await nonceOf()]
    expect(a).toBeTruthy()
    expect(a).not.toBe(b)
  })
})

test.describe("unauthenticated access control", () => {
  for (const path of PROTECTED) {
    test(`${path} redirects an anonymous visitor to /login`, async ({ page }) => {
      await page.goto(path)
      await expect(page).toHaveURL(/\/login/)
    })
  }

  test("the public API rejects a request with no bearer token", async ({ request }) => {
    for (const path of [
      "/api/v1/tenants",
      "/api/v1/properties",
      "/api/v1/maintenance",
      "/api/v1/payments",
      "/api/v1/webhooks",
    ]) {
      const res = await request.get(path)
      expect(res.status(), `${path} should be 401`).toBe(401)
    }
  })

  test("cron endpoints reject an unauthenticated caller", async ({ request }) => {
    for (const path of ["/api/cron/daily", "/api/cron/late-fees", "/api/cron/gdpr"]) {
      const res = await request.get(path, { failOnStatusCode: false })
      expect([401, 403], `${path} should refuse`).toContain(res.status())
    }
  })
})

test.describe("public endpoints", () => {
  test("health responds without touching the database", async ({ request }) => {
    const res = await request.get("/api/health")
    expect(res.status()).toBe(200)
    expect((await res.json()).status).toBe("ok")
  })

  test("static legal pages render", async ({ page }) => {
    for (const path of STATIC_PAGES) {
      const res = await page.goto(path)
      expect(res?.status(), `${path} should render`).toBe(200)
    }
  })

  test("an unknown calendar token is not found and is never shared-cached", async ({
    request,
  }) => {
    // The feed carries tenant names, rent amounts and addresses behind nothing
    // but the token in the URL, so it must never be stored by a shared cache.
    const res = await request.get("/api/calendar/definitely-not-a-real-token.ics", {
      failOnStatusCode: false,
    })
    const cache = res.headers()["cache-control"] ?? ""
    expect(cache).not.toContain("public")
  })
})

test.describe("requires a database", () => {
  // A PRESENTED-but-invalid key must be looked up before it can be rejected, so
  // unlike the no-token case these cannot short-circuit. Set E2E_DB=1 when
  // DATABASE_URL points at a migrated database.
  test.skip(
    !process.env.E2E_DB,
    "Set E2E_DB=1 with a migrated DATABASE_URL to run database-backed checks."
  )

  test("the public API rejects a malformed bearer token", async ({ request }) => {
    const res = await request.get("/api/v1/tenants", {
      headers: { authorization: "Bearer pmn_live_totally-made-up" },
      failOnStatusCode: false,
    })
    expect(res.status()).toBe(401)
  })

  test("session-gated API routes reject an anonymous caller", async ({ request }) => {
    for (const path of ["/api/properties", "/api/tenants", "/api/rent", "/api/admin/users"]) {
      const res = await request.get(path, { failOnStatusCode: false })
      expect([401, 403], `${path} should refuse`).toContain(res.status())
    }
  })

  test("an unknown tenant-portal token 404s rather than leaking", async ({ request }) => {
    const res = await request.get("/tenant-portal/definitely-not-a-real-token", {
      failOnStatusCode: false,
    })
    expect(res.status()).toBe(404)
  })
})