from unittest.mock import patch

import pytest
from django.core.cache import cache
from django.test import override_settings

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


@pytest.mark.django_db
def test_comment_post_flow(client, home_page):
    cache.clear()
    index = ArticleIndexPage(title="Articles", slug="articles")
    home_page.add_child(instance=index)
    author = AuthorFactory()
    article = ArticlePage(title="A", slug="a", author=author, summary="s", body=[("rich_text", "<p>body</p>")])
    index.add_child(instance=article)
    article.save_revision().publish()

    resp = client.post(
        "/comments/post/",
        {
            "article_id": article.id,
            "author_name": "Test",
            "author_email": "test@example.com",
            "body": "Hello",
            "honeypot": "",
        },
    )
    assert resp.status_code == 302
    assert resp["Location"].endswith("?commented=pending")
    assert Comment.objects.count() == 1


@pytest.mark.django_db
def test_comment_post_redirect_banner_renders_on_article_page(client, home_page):
    cache.clear()
    index = ArticleIndexPage(title="Articles", slug="articles")
    home_page.add_child(instance=index)
    author = AuthorFactory()
    article = ArticlePage(title="A", slug="a", author=author, summary="s", body=[("rich_text", "<p>body</p>")])
    index.add_child(instance=article)
    article.save_revision().publish()

    resp = client.post(
        "/comments/post/",
        {
            "article_id": article.id,
            "author_name": "Test",
            "author_email": "test@example.com",
            "body": "Hello",
            "honeypot": "",
        },
        follow=True,
    )
    assert resp.status_code == 200
    assert b"Your comment has been posted and is awaiting moderation." in resp.content


@pytest.mark.django_db
@override_settings(TURNSTILE_SECRET_KEY="test-secret")
def test_comment_post_redirect_banner_renders_approved_state(client, home_page):
    cache.clear()
    index = ArticleIndexPage(title="Articles", slug="articles")
    home_page.add_child(instance=index)
    author = AuthorFactory()
    article = ArticlePage(title="A", slug="a", author=author, summary="s", body=[("rich_text", "<p>body</p>")])
    index.add_child(instance=article)
    article.save_revision().publish()

    with patch("apps.comments.views._verify_turnstile", return_value=True):
        resp = client.post(
            "/comments/post/",
            {
                "article_id": article.id,
                "author_name": "Test",
                "author_email": "test@example.com",
                "body": "Hello",
                "honeypot": "",
                "cf-turnstile-response": "tok",
            },
            follow=True,
        )

    assert resp.status_code == 200
    assert b"Comment posted!" in resp.content


@pytest.mark.django_db
def test_comment_post_rejected_when_comments_disabled(client, home_page):
    cache.clear()
    index = ArticleIndexPage(title="Articles", slug="articles")
    home_page.add_child(instance=index)
    author = AuthorFactory()
    article = ArticlePage(
        title="A",
        slug="a",
        author=author,
        summary="s",
        body=[("rich_text", "<p>body</p>")],
        comments_enabled=False,
    )
    index.add_child(instance=article)
    article.save_revision().publish()

    resp = client.post(
        "/comments/post/",
        {
            "article_id": article.id,
            "author_name": "Test",
            "author_email": "test@example.com",
            "body": "Hello",
            "honeypot": "",
        },
    )
    assert resp.status_code == 404
    assert Comment.objects.count() == 0


@pytest.mark.django_db
def test_invalid_comment_post_rerenders_form_with_errors(client, home_page):
    cache.clear()
    index = ArticleIndexPage(title="Articles", slug="articles")
    home_page.add_child(instance=index)
    author = AuthorFactory()
    article = ArticlePage(title="A", slug="a", author=author, summary="s", body=[("rich_text", "<p>body</p>")])
    index.add_child(instance=article)
    article.save_revision().publish()

    resp = client.post(
        "/comments/post/",
        {
            "article_id": article.id,
            "author_name": "Test",
            "author_email": "test@example.com",
            "body": "   ",
            "honeypot": "",
        },
    )

    assert resp.status_code == 200
    assert b'aria-label="Comment form errors"' in resp.content
    assert b'value="Test"' in resp.content
    assert b"test@example.com" in resp.content
    assert Comment.objects.count() == 0


@pytest.mark.django_db
def test_comment_reply_depth_is_enforced(client, home_page):
    cache.clear()
    index = ArticleIndexPage(title="Articles", slug="articles")
    home_page.add_child(instance=index)
    author = AuthorFactory()
    article = ArticlePage(title="A", slug="a", author=author, summary="s", body=[("rich_text", "<p>body</p>")])
    index.add_child(instance=article)
    article.save_revision().publish()

    parent = Comment.objects.create(
        article=article,
        author_name="Parent",
        author_email="p@example.com",
        body="Parent",
        is_approved=True,
    )
    child = Comment.objects.create(
        article=article,
        parent=parent,
        author_name="Child",
        author_email="c@example.com",
        body="Child",
        is_approved=True,
    )

    resp = client.post(
        "/comments/post/",
        {
            "article_id": article.id,
            "parent_id": child.id,
            "author_name": "TooDeep",
            "author_email": "deep@example.com",
            "body": "Nope",
            "honeypot": "",
        },
    )
    assert resp.status_code == 200
    assert b"Reply depth exceeds the allowed limit" in resp.content
    assert Comment.objects.count() == 2


@pytest.mark.django_db
@override_settings(TRUSTED_PROXY_IPS=[])
def test_comment_uses_remote_addr_when_proxy_untrusted(client, home_page):
    cache.clear()
    index = ArticleIndexPage(title="Articles", slug="articles")
    home_page.add_child(instance=index)
    author = AuthorFactory()
    article = ArticlePage(title="A", slug="a", author=author, summary="s", body=[("rich_text", "<p>body</p>")])
    index.add_child(instance=article)
    article.save_revision().publish()

    client.post(
        "/comments/post/",
        {
            "article_id": article.id,
            "author_name": "Test",
            "author_email": "test@example.com",
            "body": "Hello",
            "honeypot": "",
        },
        REMOTE_ADDR="10.0.0.1",
        HTTP_X_FORWARDED_FOR="203.0.113.7",
    )
    comment = Comment.objects.get()
    assert comment.ip_address == "10.0.0.1"