from datetime import datetime, timedelta, timezone
from types import SimpleNamespace

from central.app.panel_presentation import (
    format_age,
    format_duration,
    format_ui_datetime,
    health_label,
    operational_priority,
)


def test_ui_times_use_configured_timezone_and_human_age(monkeypatch):
    monkeypatch.setenv("UI_TIMEZONE", "America/Bahia")
    value = datetime(2026, 9, 22, 19, 11, tzinfo=timezone.utc)

    assert format_ui_datetime(value) == "22/09/2026 16:11"
    assert format_age(value, datetime(2026, 9, 22, 19, 19, tzinfo=timezone.utc)) == "há 8 min"


def test_ui_datetime_treats_naive_values_as_utc():
    value = datetime(2026, 9, 22, 19, 11)

    assert format_ui_datetime(value) == "22/09/2026 16:11"


def test_age_handles_empty_and_future_values():
    now = datetime(2026, 9, 22, 19, 19, tzinfo=timezone.utc)

    assert format_age(None, now) == "-"
    assert format_age(now + timedelta(minutes=1), now) == "agora"
    assert format_age(now - timedelta(hours=2), now) == "há 2 h"


def test_duration_and_priority_are_deterministic():
    start = datetime(2026, 9, 22, 19, 0, tzinfo=timezone.utc)
    finish = start + timedelta(seconds=194)

    assert format_duration(None, finish) == "-"
    assert format_duration(start, None) == "em andamento"
    assert format_duration(start, finish) == "3 min 14 s"
    assert operational_priority(SimpleNamespace(blocker_type="TECHNICAL_FAILURE", field="", reason_code="X")) == "CRITICAL"


def test_health_label_maps_known_states_and_preserves_unknown_states():
    assert health_label("ONLINE") == "Online"
    assert health_label("DEGRADED") == "Degradado"
    assert health_label("OFFLINE") == "Offline"
    assert health_label("FAILED") == "Falha"
    assert health_label("UNKNOWN") == "Desconhecido"
    assert health_label("NEW_STATE") == "NEW_STATE"