"""Missing /media/... paths serve a bundled placeholder unless KINK_MEDIA_STRICT=1."""
from __future__ import annotations

import shutil
import sys
from pathlib import Path

import pytest
from fastapi.testclient import TestClient

_SEED = Path(__file__).resolve().parent.parent / "deploy/hf/seed/hf_bundled_store.db"


@pytest.fixture()
def media_fallback_app(tmp_path, monkeypatch):
    assert _SEED.is_file(), f"Missing seed DB: {_SEED}"
    dest = tmp_path / "media_fb_store.db"
    shutil.copyfile(_SEED, dest)
    monkeypatch.setenv("KINK_STORE_PATH", str(dest))
    monkeypatch.setenv("KINK_SKIP_HEAVY_WARM", "1")
    monkeypatch.setenv("KINK_HF_REQUIRE_FULL_CATALOG", "0")
    monkeypatch.delenv("KINK_MEDIA_STRICT", raising=False)
    sys.modules.pop("api", None)
    import api as api_mod

    api_mod._backend_impl = None
    api_mod._get_backend()
    return api_mod


def test_missing_fetlife_media_returns_placeholder_with_header(media_fallback_app) -> None:
    client = TestClient(media_fallback_app.app)
    r = client.get("/media/fetlife_fetishes/999999/0000000000001.jpg")
    assert r.status_code == 200
    assert r.headers.get("x-kink-media-fallback") == "1"
    assert r.headers.get("content-type", "").startswith("image/")
    assert len(r.content) > 1000


def test_missing_media_strict_returns_404(tmp_path, monkeypatch) -> None:
    assert _SEED.is_file(), f"Missing seed DB: {_SEED}"
    dest = tmp_path / "strict_store.db"
    shutil.copyfile(_SEED, dest)
    monkeypatch.setenv("KINK_STORE_PATH", str(dest))
    monkeypatch.setenv("KINK_SKIP_HEAVY_WARM", "1")
    monkeypatch.setenv("KINK_HF_REQUIRE_FULL_CATALOG", "0")
    monkeypatch.setenv("KINK_MEDIA_STRICT", "1")
    sys.modules.pop("api", None)
    import api as api_mod

    api_mod._backend_impl = None
    api_mod._get_backend()
    client = TestClient(api_mod.app)
    r = client.get("/media/fetlife_fetishes/999999/0000000000001.jpg")
    assert r.status_code == 404


def test_missing_media_redirects_to_public_media_base(tmp_path, monkeypatch) -> None:
    assert _SEED.is_file(), f"Missing seed DB: {_SEED}"
    dest = tmp_path / "remote_media_store.db"
    shutil.copyfile(_SEED, dest)
    monkeypatch.setenv("KINK_STORE_PATH", str(dest))
    monkeypatch.setenv("KINK_SKIP_HEAVY_WARM", "1")
    monkeypatch.setenv("KINK_HF_REQUIRE_FULL_CATALOG", "1")
    monkeypatch.setenv("KINK_HF_STALE_MAX_BYTES", "0")
    monkeypatch.setenv("KINK_MEDIA_PUBLIC_BASE_URL", "https://cdn.example.test/kink-media")
    monkeypatch.delenv("KINK_MEDIA_STRICT", raising=False)
    sys.modules.pop("api", None)
    import api as api_mod

    api_mod._backend_impl = None
    api_mod._get_backend()
    client = TestClient(api_mod.app)
    r = client.get("/media/fetlife_fetishes/999999/0000000000001.jpg", follow_redirects=False)
    assert r.status_code == 307
    assert r.headers["location"] == "https://cdn.example.test/kink-media/fetlife_fetishes/999999/0000000000001.jpg"
    h = client.get("/health").json()
    assert h.get("media", {}).get("remote_mode") == "public_base"
    assert h.get("media", {}).get("remote_configured") is True


def test_favicon_serves_placeholder(media_fallback_app) -> None:
    client = TestClient(media_fallback_app.app)
    r = client.get("/favicon.ico")
    assert r.status_code == 200
    assert r.headers.get("content-type", "").startswith("image/")


def test_hf_space_image_honors_media_strict_for_missing_tiles(tmp_path, monkeypatch) -> None:
    """Published HF image marker must not override an explicit Space ``KINK_MEDIA_STRICT=1``."""
    assert _SEED.is_file(), f"Missing seed DB: {_SEED}"
    dest = tmp_path / "media_hf_strict.db"
    shutil.copyfile(_SEED, dest)
    monkeypatch.setenv("KINK_STORE_PATH", str(dest))
    monkeypatch.setenv("KINK_SKIP_HEAVY_WARM", "1")
    monkeypatch.setenv("KINK_HF_REQUIRE_FULL_CATALOG", "0")
    monkeypatch.setenv("KINK_MEDIA_STRICT", "1")
    monkeypatch.setenv("KINK_HF_SPACE_IMAGE", "1")
    sys.modules.pop("api", None)
    import api as api_mod

    api_mod._backend_impl = None
    api_mod._get_backend()
    client = TestClient(api_mod.app)
    r = client.get("/media/fetlife_fetishes/999999/0000000000001.jpg")
    assert r.status_code == 404
    h = client.get("/health").json()
    assert h.get("media", {}).get("hf_space_image") is True
    assert h.get("media", {}).get("strict_env") is True
    assert h.get("media", {}).get("strict_missing_assets") is True


def test_full_catalog_mode_defaults_to_strict_missing_media(tmp_path, monkeypatch) -> None:
    assert _SEED.is_file(), f"Missing seed DB: {_SEED}"
    dest = tmp_path / "media_full_catalog.db"
    shutil.copyfile(_SEED, dest)
    monkeypatch.setenv("KINK_STORE_PATH", str(dest))
    monkeypatch.setenv("KINK_SKIP_HEAVY_WARM", "1")
    monkeypatch.setenv("KINK_HF_REQUIRE_FULL_CATALOG", "1")
    monkeypatch.setenv("KINK_HF_STALE_MAX_BYTES", "0")
    monkeypatch.delenv("KINK_MEDIA_STRICT", raising=False)
    sys.modules.pop("api", None)
    import api as api_mod

    api_mod._backend_impl = None
    api_mod._get_backend()
    client = TestClient(api_mod.app)
    r = client.get("/media/fetlife_fetishes/999999/0000000000001.jpg")
    assert r.status_code == 404
    h = client.get("/health").json()
    assert h.get("media", {}).get("strict_env") is False
    assert h.get("media", {}).get("strict_missing_assets") is True


def test_invalid_kink_media_fallback_override_still_serves_bundled_demo(tmp_path, monkeypatch) -> None:
    """Broken ``KINK_MEDIA_FALLBACK_PATH`` must not disable the default placeholder."""
    assert _SEED.is_file(), f"Missing seed DB: {_SEED}"
    dest = tmp_path / "media_fb_bad_override.db"
    shutil.copyfile(_SEED, dest)
    monkeypatch.setenv("KINK_STORE_PATH", str(dest))
    monkeypatch.setenv("KINK_SKIP_HEAVY_WARM", "1")
    monkeypatch.setenv("KINK_HF_REQUIRE_FULL_CATALOG", "0")
    monkeypatch.delenv("KINK_MEDIA_STRICT", raising=False)
    monkeypatch.setenv("KINK_MEDIA_FALLBACK_PATH", str(tmp_path / "nonexistent_fallback.jpg"))
    sys.modules.pop("api", None)
    import api as api_mod

    api_mod._backend_impl = None
    api_mod._get_backend()
    client = TestClient(api_mod.app)
    r = client.get("/media/fetlife_fetishes/999999/0000000000001.jpg")
    assert r.status_code == 200
    assert r.headers.get("x-kink-media-fallback") == "1"
    h = client.get("/health").json()
    assert h.get("media", {}).get("fallback_ready") is True
    assert h.get("media", {}).get("strict_missing_assets") is False