"""Which HTML page the server hands a path (main.py), DB-lane.

The frontend builds two entries: the app (index.html) and a shared link's player alone (watch.html), so
the friend a /watch link was sent to never downloads the app. Every /watch/ path must get the player's
page — with the link's Open Graph tags when the token names a playable link — and nothing else may.
"""

import pytest

from app import main
from app.config import settings
from app.downloads import probe as probemod

_PAGE = """<!doctype html><html><head>
<!--OG:START--><meta property="og:title" content="Siftlode" /><!--OG:END-->
</head><body><script src="/assets/{entry}.js"></script></body></html>"""


@pytest.fixture
def pages(tmp_path, monkeypatch):
    index, watch = tmp_path / "index.html", tmp_path / "watch.html"
    index.write_text(_PAGE.format(entry="app"), encoding="utf-8")
    watch.write_text(_PAGE.format(entry="watch"), encoding="utf-8")
    monkeypatch.setattr(main, "INDEX_HTML", index)
    monkeypatch.setattr(main, "WATCH_HTML", watch)


@pytest.fixture
def link_token(as_user, make_user, tmp_path, monkeypatch, upload_headers):
    monkeypatch.setattr(settings, "files_root", str(tmp_path / "media"))
    video = {"codec_type": "video", "codec_name": "h264", "pix_fmt": "yuv420p"}
    audio = {"codec_type": "audio", "codec_name": "aac"}
    data = {"streams": [video, audio], "format": {"format_name": "mov,mp4", "duration": "5"}}
    monkeypatch.setattr(probemod, "probe_json", lambda _p: data)
    owner = as_user(make_user())
    job = owner.post(
        "/api/downloads/upload",
        content=b"fake-video",
        headers=upload_headers("clip.mp4", display_name="Holiday clip"),
    )
    assert job.status_code == 200, job.text
    link = owner.post(f"/api/downloads/{job.json()['id']}/links", json={})
    assert link.status_code == 200, link.text
    return link.json()["token"]


@pytest.mark.parametrize("path", ["/", "/feed", "/downloads/42"])
def test_an_app_path_gets_the_app(pages, client, path):
    r = client.get(path)
    assert r.status_code == 200
    assert "/assets/app.js" in r.text


@pytest.mark.parametrize("path", ["/watch/no-such-token", "/watch/no-such-token/extra"])
def test_every_watch_path_gets_the_player_alone(pages, client, path):
    r = client.get(path)
    assert r.status_code == 200
    assert "/assets/watch.js" in r.text and "/assets/app.js" not in r.text
    assert r.headers["cache-control"] == "no-cache"


def test_a_live_link_unfurls_from_the_players_page(pages, client, link_token):
    r = client.get(f"/watch/{link_token}")
    assert r.status_code == 200
    assert "/assets/watch.js" in r.text
    assert 'content="Holiday clip"' in r.text
    assert '<meta property="og:title" content="Siftlode" />' not in r.text  # replaced, not appended