"""E2E tests for the comment submission flow."""

from __future__ import annotations

import pytest
from playwright.sync_api import Page, expect

ARTICLE_SLUG = "nightly-playwright-journey"


def _go_to_article(page: Page, base_url: str) -> None:
    page.goto(f"{base_url}/articles/{ARTICLE_SLUG}/", wait_until="networkidle")


@pytest.mark.e2e
def test_valid_comment_submission_redirects(page: Page, base_url: str) -> None:
    _go_to_article(page, base_url)

    # Fill the main comment form (not a reply form)
    form = page.locator("form[action]").filter(has=page.get_by_role("button", name="Post comment"))
    form.locator('input[name="author_name"]').fill("E2E Tester")
    form.locator('input[name="author_email"]').fill("e2e@example.com")
    form.locator('textarea[name="body"]').fill("This is a test comment from Playwright.")
    form.get_by_role("button", name="Post comment").click()

    # Successful submission redirects back to the article with ?commented=1
    page.wait_for_url(lambda url: "commented=1" in url, timeout=10_000)
    assert "commented=1" in page.url


@pytest.mark.e2e
def test_empty_body_shows_form_errors(page: Page, base_url: str) -> None:
    _go_to_article(page, base_url)

    form = page.locator("form[action]").filter(has=page.get_by_role("button", name="Post comment"))
    form.locator('input[name="author_name"]').fill("E2E Tester")
    form.locator('input[name="author_email"]').fill("e2e@example.com")
    form.locator('textarea[name="body"]').fill("   ")  # whitespace-only body
    form.get_by_role("button", name="Post comment").click()
    page.wait_for_load_state("networkidle")

    # The page re-renders with the error summary visible
    expect(page.locator('[aria-label="Comment form errors"]')).to_be_visible()
    # URL must NOT have ?commented=1 — form was not accepted
    assert "commented=1" not in page.url


@pytest.mark.e2e
def test_comments_section_absent_when_disabled(page: Page, base_url: str) -> None:
    """Article with comments_enabled=False must not show the comments section."""
    response = page.goto(f"{base_url}/articles/e2e-no-comments/", wait_until="networkidle")
    assert response is not None and response.status == 200, (
        f"Expected 200 for e2e-no-comments article, got {response and response.status}"
    )
    # Confirm we're on the right page
    expect(page.get_by_role("heading", level=1)).to_have_text("No Comments Article")
    # Comments section must be absent — exact=True prevents matching "No Comments Article" h1
    expect(page.get_by_role("heading", name="Comments", exact=True)).to_have_count(0)
    expect(page.get_by_role("button", name="Post comment")).to_have_count(0)