import pytest
from sqlalchemy import select

from hub_core.models.domain import Domain
from hub_core.utils import PageParams, apply_pagination, normalize_trailing_slash, resolve_repo_path, slugify


class RepoStub:
    local_path = "/fallback/path"
    host_paths = {"workstation": "/host/path"}


def test_slugify_normalizes_text() -> None:
    assert slugify(" The Custodian: Hub Core! ") == "the-custodian-hub-core"


def test_slugify_rejects_empty_slug() -> None:
    with pytest.raises(ValueError, match="slug cannot be empty"):
        slugify(" !!! ")


def test_page_params_bounds() -> None:
    assert PageParams(limit=10, offset=20).limit == 10
    with pytest.raises(ValueError, match="limit"):
        PageParams(limit=0)
    with pytest.raises(ValueError, match="offset"):
        PageParams(offset=-1)


def test_apply_pagination_sets_limit_and_offset() -> None:
    query = apply_pagination(select(Domain), PageParams(limit=25, offset=50))
    compiled = str(query.compile(compile_kwargs={"literal_binds": True}))
    assert "LIMIT 25" in compiled
    assert "OFFSET 50" in compiled


def test_resolve_repo_path_prefers_host_path() -> None:
    repo = RepoStub()
    assert resolve_repo_path(repo, "workstation") == "/host/path"
    assert resolve_repo_path(repo, "unknown-host") == "/fallback/path"


def test_normalize_trailing_slash_preserves_query_and_fragment() -> None:
    assert normalize_trailing_slash("/repos?status=active#top") == "/repos/?status=active#top"
    assert normalize_trailing_slash("/repos/?status=active", trailing=False) == "/repos?status=active"