"""End-to-end API tests via FastAPI TestClient."""

from __future__ import annotations

import io

from fastapi.testclient import TestClient
from PIL import Image

from extractors.app import app

client = TestClient(app)


def _png() -> bytes:
    buf = io.BytesIO()
    Image.new("RGB", (40, 40), (200, 10, 10)).save(buf, format="PNG")
    return buf.getvalue()


def test_health():
    r = client.get("/health")
    assert r.status_code == 200
    assert r.json()["status"] == "ok"


def test_ready_reports_tooling():
    r = client.get("/ready")
    assert r.status_code == 200
    body = r.json()
    assert "ffprobe" in body and "ffmpeg" in body


def test_metadata_image_runs_image_extractors():
    r = client.post(
        "/v1/metadata",
        files={"file": ("photo.png", _png(), "image/png")},
    )
    assert r.status_code == 200
    body = r.json()
    assert body["media_type"] == "image"
    assert set(body["analyses"]) >= {"integrity", "exif", "ela"}
    assert len(body["sha256"]) == 64
    assert body["execution_time_ms"] >= 0


def test_metadata_rejects_empty():
    r = client.post(
        "/v1/metadata", files={"file": ("empty.png", b"", "image/png")}
    )
    assert r.status_code == 400