"""
e2e tests for general navigation and page health.

These tests verify that:
- The homepage loads after authentication.
- All primary navigation links resolve without 5xx errors.
- The layout is accessible at a mobile viewport width.
"""

from __future__ import annotations

import pytest
from playwright.sync_api import Page, expect


PRIMARY_NAV_HREFS = [
    "/",
    "/encode",
    "/decode",
    "/generate",
    "/attest",
    "/verify",
    "/keys/",
    "/fieldkit/",
    "/dropbox/admin",
    "/federation/",
]


@pytest.mark.e2e
def test_homepage_loads(live_server: str, authenticated_page: Page) -> None:
    """The index page loads after login."""
    page = authenticated_page
    page.goto(f"{live_server}/")
    page.wait_for_load_state("networkidle")
    # At least one of the feature card links is visible
    expect(page.locator("a[href='/encode']")).to_be_visible()


@pytest.mark.e2e
def test_all_nav_links_no_server_error(live_server: str, authenticated_page: Page) -> None:
    """Every primary navigation link returns a non-5xx response."""
    page = authenticated_page
    errors: list[str] = []

    for href in PRIMARY_NAV_HREFS:
        url = f"{live_server}{href}"
        response = page.goto(url)
        page.wait_for_load_state("networkidle")

        status = response.status if response else None
        if status is not None and status >= 500:
            errors.append(f"{href} → HTTP {status}")

    assert not errors, "Navigation links returned server errors:\n" + "\n".join(errors)


@pytest.mark.e2e
def test_health_endpoint_authenticated(live_server: str, authenticated_page: Page) -> None:
    """The /health endpoint returns JSON with status when authenticated."""
    page = authenticated_page

    result = page.evaluate(
        """async (baseUrl) => {
        const resp = await fetch(baseUrl + '/health');
        return {status: resp.status, body: await resp.json()};
    }""",
        live_server,
    )

    assert result["status"] == 200, f"Health check failed: {result['status']}"
    assert "status" in result["body"]


@pytest.mark.e2e
def test_health_endpoint_unauthenticated(live_server: str, page: Page, admin_user: None) -> None:
    """The /health endpoint returns minimal JSON for anonymous callers."""
    # Navigate to the server first so fetch() has a proper origin
    page.goto(f"{live_server}/login")
    page.wait_for_load_state("networkidle")

    result = page.evaluate(
        """async () => {
        const resp = await fetch('/health');
        return {status: resp.status, body: await resp.json()};
    }"""
    )

    assert result["status"] == 200
    assert "status" in result["body"]


@pytest.mark.e2e
def test_responsive_layout_mobile(live_server: str, authenticated_page: Page) -> None:
    """The index page renders without horizontal overflow at 375px viewport."""
    page = authenticated_page
    page.set_viewport_size({"width": 375, "height": 812})

    page.goto(f"{live_server}/")
    page.wait_for_load_state("networkidle")

    overflow = page.evaluate("""() => {
        return document.documentElement.scrollWidth > document.documentElement.clientWidth;
    }""")

    assert not overflow, "Page has horizontal overflow at 375px — layout breaks on mobile"


@pytest.mark.e2e
def test_page_titles_are_set(live_server: str, authenticated_page: Page) -> None:
    """Key pages have non-empty title elements."""
    page = authenticated_page

    # Just verify titles are not empty/default — don't assert specific text
    # since templates may use varying title patterns
    for href in ["/", "/attest", "/verify", "/keys/"]:
        page.goto(f"{live_server}{href}")
        page.wait_for_load_state("networkidle")
        title = page.title()
        assert len(title.strip()) > 0, f"Page {href} has empty title"


@pytest.mark.e2e
def test_logout_link_present_when_authenticated(
    live_server: str, authenticated_page: Page
) -> None:
    """The navigation shows a logout affordance when logged in."""
    page = authenticated_page
    page.goto(f"{live_server}/")
    page.wait_for_load_state("networkidle")

    # Logout is a POST form inside a Bootstrap dropdown — check page source
    content = page.content()
    assert "/logout" in content, "No logout action found in page HTML when authenticated"