from django.core.files.uploadedfile import SimpleUploadedFile
from django.urls import reverse
import pytest

from review_agent.models import Conversation, FileAttachment


pytestmark = pytest.mark.django_db


def test_upload_attachments_requires_conversation_owner(client, settings, tmp_path, django_user_model):
    settings.MEDIA_ROOT = tmp_path
    owner = django_user_model.objects.create_user(username="owner", password="pass")
    other = django_user_model.objects.create_user(username="other", password="pass")
    conversation = Conversation.objects.create(user=owner, title="会话")
    client.force_login(other)

    response = client.post(
        reverse("file_summary_attachment_upload", args=[conversation.pk]),
        {"files": [SimpleUploadedFile("a.docx", b"a")]},
    )

    assert response.status_code == 404


def test_attachment_api_requires_login(client, django_user_model):
    user = django_user_model.objects.create_user(username="owner", password="pass")
    conversation = Conversation.objects.create(user=user, title="会话")

    response = client.get(reverse("file_summary_attachment_list", args=[conversation.pk]))

    assert response.status_code == 302


def test_upload_and_list_current_conversation_attachments(client, settings, tmp_path, django_user_model):
    settings.MEDIA_ROOT = tmp_path
    user = django_user_model.objects.create_user(username="owner", password="pass")
    conversation = Conversation.objects.create(user=user, title="会话")
    client.force_login(user)

    upload_response = client.post(
        reverse("file_summary_attachment_upload", args=[conversation.pk]),
        {
            "files": [
                SimpleUploadedFile("a.docx", b"a", content_type="application/docx"),
                SimpleUploadedFile("b.zip", b"b", content_type="application/zip"),
            ]
        },
    )
    list_response = client.get(reverse("file_summary_attachment_list", args=[conversation.pk]))

    assert upload_response.status_code == 200
    assert upload_response.json()["attachments"][0]["original_name"] == "a.docx"
    assert len(list_response.json()["attachments"]) == 2


def test_delete_attachment_is_logical_and_scoped(client, settings, tmp_path, django_user_model):
    settings.MEDIA_ROOT = tmp_path
    user = django_user_model.objects.create_user(username="owner", password="pass")
    conversation = Conversation.objects.create(user=user, title="会话")
    attachment = FileAttachment.objects.create(
        conversation=conversation,
        user=user,
        original_name="a.docx",
        storage_path="x/a.docx",
        file_size=1,
    )
    client.force_login(user)

    response = client.delete(reverse("file_summary_attachment_detail", args=[conversation.pk, attachment.pk]))

    attachment.refresh_from_db()
    assert response.status_code == 200
    assert attachment.upload_status == FileAttachment.UploadStatus.DELETED
    assert attachment.is_active is False