"""Unit tests for the docker plugin's presentation layer (no DB).

CI never renders these templates through the running app (the unit-lane app is
created with testing=True, which skips plugin loading), so a Jinja syntax error
would otherwise ship green. These tests parse every docker template and smoke
the routes module so a broken tag or import is caught in the unit lane.
"""
import pathlib

import jinja2

from plugins.docker import routes as r

_TEMPLATES = pathlib.Path(r.__file__).parent / "templates" / "docker"


def test_all_docker_templates_parse():
    env = jinja2.Environment()
    files = sorted(_TEMPLATES.glob("*.html"))
    assert files, "no docker templates found"
    for f in files:
        # Raises TemplateSyntaxError on an unbalanced/typo'd tag.
        env.parse(f.read_text())


def test_routes_module_exposes_new_views():
    # Import-smoke + confirms the #942 view functions are defined.
    for name in ("container_detail", "container_history", "swarm", "disk", "index", "rows"):
        assert callable(getattr(r, name)), name
    assert r.docker_bp.name == "docker"


def test_disk_prune_view_defined():
    # M78 admin-gated prune action.
    assert callable(r.disk_prune)


def test_container_log_views_defined():
    # M79 per-container log viewer + its HTMX-polled line fragment.
    assert callable(r.container_logs)
    assert callable(r.container_logs_lines)


def test_uptime_is_the_shared_duration_or_none():
    from datetime import datetime, timedelta, timezone
    now = datetime.now(timezone.utc)
    assert r._uptime(None) is None
    assert r._uptime(now + timedelta(minutes=5)) is None  # clock skew: not "-5m"
    assert r._uptime(now - timedelta(days=3, hours=4, seconds=30)) == "3d 4h"