import pytest
from django.test import override_settings
from django.utils import timezone

from apps.blog.models import ArticleIndexPage, ArticlePage
from apps.blog.tests.factories import AuthorFactory


@pytest.mark.django_db
def test_published_date_auto_set_on_first_publish(home_page):
    """published_date should be auto-populated from first_published_at on first publish."""
    index = ArticleIndexPage(title="Articles", slug="articles")
    home_page.add_child(instance=index)
    author = AuthorFactory()
    article = ArticlePage(
        title="Auto Date",
        slug="auto-date",
        author=author,
        summary="summary",
        body=[("rich_text", "<p>body</p>")],
    )
    index.add_child(instance=article)
    article.save_revision().publish()
    article.refresh_from_db()
    assert article.published_date is not None
    assert article.published_date == article.first_published_at


@pytest.mark.django_db
def test_published_date_preserved_when_explicitly_set(home_page):
    """An explicitly set published_date should not be overwritten on save."""
    index = ArticleIndexPage(title="Articles", slug="articles")
    home_page.add_child(instance=index)
    author = AuthorFactory()
    custom_date = timezone.now() - timezone.timedelta(days=30)
    article = ArticlePage(
        title="Custom Date",
        slug="custom-date",
        author=author,
        summary="summary",
        body=[("rich_text", "<p>body</p>")],
        published_date=custom_date,
    )
    index.add_child(instance=article)
    article.save_revision().publish()
    article.refresh_from_db()
    assert article.published_date == custom_date


@pytest.mark.django_db
def test_homepage_orders_articles_by_published_date(home_page):
    """HomePage context should list articles ordered by -published_date."""
    index = ArticleIndexPage(title="Articles", slug="articles")
    home_page.add_child(instance=index)
    author = AuthorFactory()

    older = ArticlePage(
        title="Older",
        slug="older",
        author=author,
        summary="s",
        body=[("rich_text", "<p>body</p>")],
        published_date=timezone.now() - timezone.timedelta(days=10),
    )
    index.add_child(instance=older)
    older.save_revision().publish()

    newer = ArticlePage(
        title="Newer",
        slug="newer",
        author=author,
        summary="s",
        body=[("rich_text", "<p>body</p>")],
        published_date=timezone.now(),
    )
    index.add_child(instance=newer)
    newer.save_revision().publish()

    ctx = home_page.get_context(type("Req", (), {"GET": {}})())
    titles = [a.title for a in ctx["latest_articles"]]
    assert titles.index("Newer") < titles.index("Older")


@pytest.mark.django_db
def test_article_index_orders_by_published_date(home_page, rf):
    """ArticleIndexPage.get_articles should order by -published_date."""
    index = ArticleIndexPage(title="Articles", slug="articles")
    home_page.add_child(instance=index)
    author = AuthorFactory()

    old = ArticlePage(
        title="Old",
        slug="old",
        author=author,
        summary="s",
        body=[("rich_text", "<p>b</p>")],
        published_date=timezone.now() - timezone.timedelta(days=5),
    )
    index.add_child(instance=old)
    old.save_revision().publish()

    new = ArticlePage(
        title="New",
        slug="new",
        author=author,
        summary="s",
        body=[("rich_text", "<p>b</p>")],
        published_date=timezone.now(),
    )
    index.add_child(instance=new)
    new.save_revision().publish()

    articles = list(index.get_articles())
    assert articles[0].title == "New"
    assert articles[1].title == "Old"


@pytest.mark.django_db
def test_feed_uses_published_date(article_page):
    """RSS feed item_pubdate should use published_date."""
    from apps.blog.feeds import AllArticlesFeed

    feed = AllArticlesFeed()
    assert feed.item_pubdate(article_page) == article_page.published_date


@pytest.mark.django_db
@override_settings(ALLOWED_HOSTS=["testserver", "localhost", "127.0.0.1"])
def test_articles_listing_viewset_loads(client, django_user_model, home_page):
    """The Articles PageListingViewSet index page should load."""
    admin = django_user_model.objects.create_superuser(
        username="admin", email="admin@example.com", password="admin-pass"
    )
    client.force_login(admin)
    response = client.get("/cms/articles/")
    assert response.status_code == 200


@pytest.mark.django_db
@override_settings(ALLOWED_HOSTS=["testserver", "localhost", "127.0.0.1"])
def test_articles_listing_shows_articles(client, django_user_model, home_page):
    """The Articles listing should show existing articles."""
    index = ArticleIndexPage(title="Articles", slug="articles")
    home_page.add_child(instance=index)
    author = AuthorFactory()
    article = ArticlePage(
        title="Listed Article",
        slug="listed-article",
        author=author,
        summary="summary",
        body=[("rich_text", "<p>body</p>")],
    )
    index.add_child(instance=article)
    article.save_revision().publish()

    admin = django_user_model.objects.create_superuser(
        username="admin", email="admin@example.com", password="admin-pass"
    )
    client.force_login(admin)
    response = client.get("/cms/articles/")
    assert response.status_code == 200
    assert "Listed Article" in response.content.decode()


@pytest.mark.django_db
@override_settings(ALLOWED_HOSTS=["testserver", "localhost", "127.0.0.1"])
def test_dashboard_panel_renders(client, django_user_model, home_page):
    """The Wagtail admin dashboard should include the articles summary panel."""
    admin = django_user_model.objects.create_superuser(
        username="admin", email="admin@example.com", password="admin-pass"
    )
    client.force_login(admin)
    response = client.get("/cms/")
    assert response.status_code == 200
    content = response.content.decode()
    assert "Articles overview" in content


@pytest.mark.django_db
@override_settings(ALLOWED_HOSTS=["testserver", "localhost", "127.0.0.1"])
def test_dashboard_panel_shows_drafts(client, django_user_model, home_page):
    """Dashboard panel should list draft articles."""
    index = ArticleIndexPage(title="Articles", slug="articles")
    home_page.add_child(instance=index)
    author = AuthorFactory()
    draft = ArticlePage(
        title="My Draft Post",
        slug="draft-post",
        author=author,
        summary="summary",
        body=[("rich_text", "<p>body</p>")],
    )
    index.add_child(instance=draft)
    draft.save_revision()  # save revision but don't publish

    admin = django_user_model.objects.create_superuser(
        username="admin", email="admin@example.com", password="admin-pass"
    )
    client.force_login(admin)
    response = client.get("/cms/")
    content = response.content.decode()
    assert "My Draft Post" in content


@pytest.mark.django_db
@override_settings(ALLOWED_HOSTS=["testserver", "localhost", "127.0.0.1"])
def test_article_edit_page_has_tabbed_interface(client, django_user_model, home_page):
    """ArticlePage editor should have tabbed panels (Content, Metadata, Publishing, SEO)."""
    index = ArticleIndexPage(title="Articles", slug="articles")
    home_page.add_child(instance=index)
    author = AuthorFactory()
    article = ArticlePage(
        title="Tabbed",
        slug="tabbed",
        author=author,
        summary="summary",
        body=[("rich_text", "<p>body</p>")],
    )
    index.add_child(instance=article)
    article.save_revision().publish()

    admin = django_user_model.objects.create_superuser(
        username="admin", email="admin@example.com", password="admin-pass"
    )
    client.force_login(admin)
    response = client.get(f"/cms/pages/{article.pk}/edit/")
    content = response.content.decode()
    assert response.status_code == 200
    assert "Content" in content
    assert "Metadata" in content
    assert "Publishing" in content
    assert "SEO" in content