"""
T055 — GET /api/v1/images/{id}/file → 200 with binary content, ETag, Cache-Control
T056 — /file for unknown ID → 404 image_not_found
T057 — /file response exposes no storage-specific details
"""
import io
import uuid

import pytest


def _minimal_webp() -> bytes:
    # Minimal VP8L WebP
    return (
        b"RIFF$\x00\x00\x00WEBPVP8L\x18\x00\x00\x00"
        b"/\x00\x00\x00\x00\x18\xf0\x1f\xfe\xff\x02\xfe\x00"
        b"\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
    )


@pytest.mark.asyncio
async def test_file_returns_200_with_content(client):
    data = _minimal_webp()
    upload = await client.post(
        "/api/v1/images",
        files={"file": ("img.webp", io.BytesIO(data), "image/webp")},
    )
    assert upload.status_code in (200, 201)
    upload_body = upload.json()
    image_id = upload_body["id"]
    image_hash = upload_body["hash"]

    response = await client.get(f"/api/v1/images/{image_id}/file")
    assert response.status_code == 200
    assert response.headers["content-type"].startswith("image/")
    assert response.headers["etag"] == f'"{image_hash}"'
    assert "immutable" in response.headers["cache-control"]
    assert len(response.content) > 0


@pytest.mark.asyncio
async def test_file_unknown_id_returns_404(client):
    response = await client.get(f"/api/v1/images/{uuid.uuid4()}/file")
    assert response.status_code == 404
    body = response.json()
    assert body["code"] == "image_not_found"


@pytest.mark.asyncio
async def test_file_response_exposes_no_storage_details(client):
    data = _minimal_webp()
    upload = await client.post(
        "/api/v1/images",
        files={"file": ("img.webp", io.BytesIO(data), "image/webp")},
    )
    assert upload.status_code in (200, 201)
    image_id = upload.json()["id"]

    response = await client.get(f"/api/v1/images/{image_id}/file")
    assert response.status_code == 200
    assert "location" not in response.headers
    assert "minio" not in response.text.lower()
    assert "s3://" not in response.text.lower()
    assert "amazonaws.com" not in response.text.lower()