"""Test that we can upload images."""

import pathlib
import tempfile
from unittest.mock import patch

from aiohttp import ClientSession, ClientWebSocketResponse
from freezegun.api import FrozenDateTimeFactory
from PIL import Image
import pytest

from homeassistant.components.image_upload import DOMAIN
from homeassistant.components.websocket_api import TYPE_RESULT
from homeassistant.core import HomeAssistant
from homeassistant.setup import async_setup_component
from homeassistant.util import dt as dt_util

from . import TEST_IMAGE

from tests.typing import ClientSessionGenerator, WebSocketGenerator


async def test_upload_image(
    hass: HomeAssistant,
    freezer: FrozenDateTimeFactory,
    hass_client: ClientSessionGenerator,
    hass_ws_client: WebSocketGenerator,
) -> None:
    """Test we can upload an image."""
    now = dt_util.utcnow()
    freezer.move_to(now)

    with (
        tempfile.TemporaryDirectory() as tempdir,
        patch.object(hass.config, "path", return_value=tempdir),
    ):
        assert await async_setup_component(hass, DOMAIN, {})
        ws_client: ClientWebSocketResponse = await hass_ws_client()
        client: ClientSession = await hass_client()

        with TEST_IMAGE.open("rb") as fp:
            res = await client.post("/api/image/upload", data={"file": fp})

        assert res.status == 200

        item = await res.json()

        assert item["content_type"] == "image/png"
        assert item["filesize"] == 38847
        assert item["name"] == "logo.png"
        assert item["uploaded_at"] == now.isoformat()

        tempdir = pathlib.Path(tempdir)
        item_folder: pathlib.Path = tempdir / item["id"]
        test_image_bytes = TEST_IMAGE.read_bytes()
        assert (item_folder / "original").read_bytes() == test_image_bytes

        # fetch original image
        res = await client.get(f"/api/image/serve/{item['id']}/original")
        assert res.status == 200
        fetched_image_bytes = await res.read()
        assert fetched_image_bytes == test_image_bytes

        # fetch non-existing image
        res = await client.get("/api/image/serve/non-existing/256x256")
        assert res.status == 404

        # fetch invalid sizes
        for inv_size in ("256", "256x25A", "100x100", "25Ax256"):
            res = await client.get(f"/api/image/serve/{item['id']}/{inv_size}")
            assert res.status == 400

        # fetch resized version
        res = await client.get(f"/api/image/serve/{item['id']}/256x256")
        assert res.status == 200
        assert (item_folder / "256x256").is_file()

        # List item
        await ws_client.send_json({"id": 6, "type": "image/list"})
        msg = await ws_client.receive_json()

        assert msg["id"] == 6
        assert msg["type"] == TYPE_RESULT
        assert msg["success"]
        assert msg["result"] == [item]

        # Delete item
        await ws_client.send_json(
            {"id": 7, "type": "image/delete", "image_id": item["id"]}
        )
        msg = await ws_client.receive_json()

        assert msg["id"] == 7
        assert msg["type"] == TYPE_RESULT
        assert msg["success"]

        # Ensure removed from disk
        assert not item_folder.is_dir()


@pytest.mark.parametrize(
    ("image_mode", "content_type"),
    [
        ("RGBA", "image/jpeg"),
        ("LA", "image/jpeg"),
        ("P", "image/jpeg"),
    ],
)
async def test_upload_image_thumbnail_rgba_as_jpeg(
    hass: HomeAssistant,
    freezer: FrozenDateTimeFactory,
    hass_client: ClientSessionGenerator,
    image_mode: str,
    content_type: str,
) -> None:
    """Test thumbnail generation when image mode is incompatible with JPEG."""
    now = dt_util.utcnow()
    freezer.move_to(now)

    with (
        tempfile.TemporaryDirectory() as tempdir,
        patch.object(hass.config, "path", return_value=tempdir),
    ):
        assert await async_setup_component(hass, DOMAIN, {})
        client: ClientSession = await hass_client()

        with TEST_IMAGE.open("rb") as fp:
            res = await client.post("/api/image/upload", data={"file": fp})

        assert res.status == 200
        item = await res.json()
        image_id = item["id"]

        tempdir = pathlib.Path(tempdir)
        item_folder = tempdir / image_id

        # Create an image file with the given mode to simulate the mismatch
        original_path = item_folder / "original"
        img = Image.new(image_mode, (300, 300))
        img.save(original_path, format="png")

        # Change the stored content_type to simulate the mismatch
        hass.data[DOMAIN].data[image_id]["content_type"] = content_type

        # Fetch the thumbnail; this should not raise an OSError
        res = await client.get(f"/api/image/serve/{image_id}/256x256")
        assert res.status == 200
        assert (item_folder / "256x256").is_file()

        # Verify the generated thumbnail is a valid JPEG
        thumbnail = Image.open(item_folder / "256x256")
        assert thumbnail.mode == "RGB"