"""Integration tests for image upload endpoints."""

import io
from unittest.mock import AsyncMock, MagicMock, patch

import pytest
from fastapi import status
from httpx import AsyncClient
from PIL import Image as PILImage


@pytest.mark.asyncio
class TestImageUpload:
    """Tests for image upload endpoint."""

    async def test_upload_image_success(self, client: AsyncClient, auth_headers: dict):
        """Test successful image upload."""
        # Create a test image
        image = PILImage.new("RGB", (800, 600), color="red")
        buffer = io.BytesIO()
        image.save(buffer, format="JPEG")
        buffer.seek(0)

        # Mock storage and processing
        with patch("app.images.validation.magic.from_buffer") as mock_magic:
            mock_magic.return_value = "image/jpeg"

            with patch("app.api.images.upload_image_to_storage") as mock_upload:
                mock_upload.return_value = ("storage/path.jpg", 800, 600, "image/jpeg")

                with patch("app.api.images.generate_thumbnails") as mock_thumbs:
                    mock_thumbs.return_value = {
                        "low": "thumbs/low.webp",
                        "medium": "thumbs/medium.webp",
                        "high": "thumbs/high.webp",
                    }

                    # Upload image
                    response = await client.post(
                        "/api/v1/images/upload",
                        headers=auth_headers,
                        files={"file": ("test.jpg", buffer, "image/jpeg")},
                    )

        assert response.status_code == status.HTTP_201_CREATED
        data = response.json()
        assert "id" in data
        assert data["filename"] == "test.jpg"
        assert data["width"] == 800
        assert data["height"] == 600

    async def test_upload_image_unauthenticated(self, client: AsyncClient):
        """Test upload without authentication fails."""
        image = PILImage.new("RGB", (800, 600), color="red")
        buffer = io.BytesIO()
        image.save(buffer, format="JPEG")
        buffer.seek(0)

        response = await client.post(
            "/api/v1/images/upload", files={"file": ("test.jpg", buffer, "image/jpeg")}
        )

        assert response.status_code == status.HTTP_401_UNAUTHORIZED

    async def test_upload_invalid_file_type(self, client: AsyncClient, auth_headers: dict):
        """Test upload with invalid file type."""
        # Create a text file disguised as image
        buffer = io.BytesIO(b"This is not an image")

        with patch("app.images.validation.magic.from_buffer") as mock_magic:
            mock_magic.return_value = "text/plain"

            response = await client.post(
                "/api/v1/images/upload",
                headers=auth_headers,
                files={"file": ("fake.jpg", buffer, "image/jpeg")},
            )

        assert response.status_code == status.HTTP_400_BAD_REQUEST
        assert "invalid" in response.json()["detail"].lower()


@pytest.mark.asyncio
class TestImageLibrary:
    """Tests for image library endpoint."""

    async def test_get_image_library(self, client: AsyncClient, auth_headers: dict):
        """Test retrieving user's image library."""
        response = await client.get("/api/v1/images/library", headers=auth_headers)

        assert response.status_code == status.HTTP_200_OK
        data = response.json()
        assert "images" in data
        assert "total" in data
        assert "page" in data
        assert isinstance(data["images"], list)

    async def test_get_image_library_pagination(self, client: AsyncClient, auth_headers: dict):
        """Test library pagination."""
        response = await client.get(
            "/api/v1/images/library", params={"page": 2, "page_size": 10}, headers=auth_headers
        )

        assert response.status_code == status.HTTP_200_OK
        data = response.json()
        assert data["page"] == 2
        assert data["page_size"] == 10


@pytest.mark.asyncio
class TestBoardImages:
    """Tests for adding images to boards."""

    async def test_add_image_to_board(
        self, client: AsyncClient, auth_headers: dict, test_board_id: str, test_image_id: str
    ):
        """Test adding image to board."""
        payload = {
            "image_id": test_image_id,
            "position": {"x": 100, "y": 200},
            "transformations": {
                "scale": 1.0,
                "rotation": 0,
                "opacity": 1.0,
                "flipped_h": False,
                "flipped_v": False,
                "greyscale": False,
            },
            "z_order": 0,
        }

        response = await client.post(
            f"/api/v1/images/boards/{test_board_id}/images", headers=auth_headers, json=payload
        )

        # May fail if test_board_id/test_image_id fixtures aren't set up
        # This is a placeholder for the structure
        if response.status_code == status.HTTP_201_CREATED:
            data = response.json()
            assert "id" in data
            assert data["image_id"] == test_image_id
            assert data["position"]["x"] == 100

    async def test_get_board_images(
        self, client: AsyncClient, auth_headers: dict, test_board_id: str
    ):
        """Test getting all images on a board."""
        response = await client.get(
            f"/api/v1/images/boards/{test_board_id}/images", headers=auth_headers
        )

        # May return 404 if board doesn't exist in test DB
        if response.status_code == status.HTTP_200_OK:
            data = response.json()
            assert isinstance(data, list)