# tests/test_nav_files.py — Navigation page listing (#158)
#
# The vault home / navigation page lists a directory with its indexed tags so
# the Vaults · Tags · Extensions facets can filter the listing client-side.
# The tags must survive the endpoint's response_model.
from __future__ import annotations


def test_vault_files_expose_indexed_tags(client):
    """Every entry carries a `tags` list; markdown tags come from the index."""
    resp = client.get("/api/vault/TestVault/files", params={"recursive": False})
    assert resp.status_code == 200

    data = resp.json()
    files = data["files"]
    assert files, "expected a non-empty listing"

    # The field is always present (response_model must not strip it)
    assert all("tags" in f for f in files)

    by_name = {f["name"]: f for f in files}
    assert "note1.md" in by_name
    assert sorted(by_name["note1.md"]["tags"]) == ["python", "tutorial"]

    # Unindexed / tagless files keep an empty list, never null
    assert sorted(by_name["note2.md"]["tags"]) == ["devops", "docker"]
    for f in files:
        assert isinstance(f["tags"], list)


def test_vault_files_tags_in_subdirectory(client):
    """Tags are resolved per directory listing, not only at the vault root."""
    resp = client.get(
        "/api/vault/TestVault/files",
        params={"dir": "Projets", "recursive": False},
    )
    assert resp.status_code == 200

    files = resp.json()["files"]
    by_name = {f["name"]: f for f in files}
    assert "projet.md" in by_name
    assert sorted(by_name["projet.md"]["tags"]) == ["projet", "python"]


def test_indexed_tags_unknown_vault_returns_empty():
    """Index miss (unknown vault/file) degrades to an empty tag list."""
    from backend.services.vaults import _indexed_tags

    assert _indexed_tags("NoSuchVault", "ghost.md") == []