"""Unit tests for the pure work-pattern aggregator."""
from datetime import datetime, timezone

from app.services.foundations import FOUNDATIONS, rollup, work_pattern_text


def _dt(day):
    return datetime(2026, 6, day, tzinfo=timezone.utc)


def test_rollup_sums_minutes_and_counts_per_foundation():
    entries = [
        {"foundation": "short_term", "minutes": 120, "occurred_at": _dt(10)},
        {"foundation": "short_term", "minutes": 60, "occurred_at": _dt(12)},
        {"foundation": "vocation", "minutes": 60, "occurred_at": _dt(11)},
    ]
    out = rollup(entries)
    assert out["total_minutes"] == 240
    top = out["by_foundation"][0]
    assert top["foundation"] == "short_term"
    assert top["minutes"] == 180
    assert top["task_count"] == 2
    assert top["last_at"] == _dt(12)
    assert round(top["share"], 2) == 0.75


def test_rollup_covers_all_foundations_and_lists_neglected():
    out = rollup([{"foundation": "love", "minutes": 30, "occurred_at": _dt(9)}])
    assert len(out["by_foundation"]) == len(FOUNDATIONS)
    # Every foundation except 'love' has zero minutes.
    assert set(out["neglected"]) == set(FOUNDATIONS) - {"love"}


def test_rollup_empty_is_zero_and_all_neglected():
    out = rollup([])
    assert out["total_minutes"] == 0
    assert all(f["minutes"] == 0 for f in out["by_foundation"])
    assert set(out["neglected"]) == set(FOUNDATIONS)


def test_rollup_ignores_unknown_foundation():
    out = rollup([{"foundation": "nonsense", "minutes": 99, "occurred_at": _dt(9)}])
    assert out["total_minutes"] == 0


def test_work_pattern_text_summarizes_activity():
    out = rollup([
        {"foundation": "short_term", "minutes": 100, "occurred_at": _dt(10)},
    ])
    text = work_pattern_text(out, 14)
    assert "last 14 days" in text
    assert "Near-term goals" in text
    assert "Nothing was logged toward" in text


def test_work_pattern_text_none_when_no_activity():
    assert work_pattern_text(rollup([]), 14) is None