"""/api/art image + today endpoints: GET and HEAD both work (HEAD must not 404 — the
share /a/{id} HEAD gap bit us once), and the today payload carries the lightbox's
full-res URL."""
import pytest
from fastapi.testclient import TestClient


@pytest.fixture
def client(tmp_path, monkeypatch):
    db = tmp_path / "t.sqlite3"
    cache = tmp_path / "art_cache"
    monkeypatch.setenv("GOODNEWS_DB", str(db))
    monkeypatch.setenv("GOODNEWS_ART_CACHE", str(cache))
    monkeypatch.setenv("GOODNEWS_PUBLIC_BASE_URL", "https://upbeatbytes.com")
    import importlib
    import goodnews.api as api
    importlib.reload(api)
    from goodnews.db import connect, init_db
    c = connect(str(db)); init_db(c)
    c.execute(
        "INSERT INTO daily_art (art_date, source, object_id, title, artist, date_text, "
        "medium, department, credit, source_url, image_file, image_url_full, is_public_domain) "
        "VALUES ('2026-06-21','met',10154,'Lander''s Peak','Bierstadt','1863','Oil','Paintings',"
        "'Gift','https://met/10154','10154.jpg','https://met/full.jpg',1)"
    )
    c.execute("UPDATE daily_art SET blurb=?, palette=? WHERE object_id=10154",
              ("A luminous western vista.", '["#7fb4cf", "#c79a3c"]'))
    c.commit(); c.close()
    cache.mkdir(parents=True, exist_ok=True)
    (cache / "10154.jpg").write_bytes(b"\xff\xd8\xff" + b"x" * 5000)   # web-large display copy
    return api.create_app()


def test_image_get_and_head(client):
    tc = TestClient(client)
    assert tc.get("/api/art/image/10154").status_code == 200
    assert tc.head("/api/art/image/10154").status_code == 200          # HEAD must not 404
    # ?size=full falls back to the display copy when no -full is cached
    assert tc.get("/api/art/image/10154?size=full").status_code == 200
    assert tc.get("/api/art/image/9999").status_code == 404


def test_today_exposes_full_res_url(client):
    a = TestClient(client).get("/api/art/today").json()
    assert a["image_url"] == "/api/art/image/10154"
    assert a["image_url_large"] == "/api/art/image/10154?size=full"
    assert a["license"] == "Public Domain (CC0)" and a["museum"] == "The Met"
    assert a["blurb"] == "A luminous western vista."
    assert a["palette"] == ["#7fb4cf", "#c79a3c"]        # parsed from stored JSON