from datetime import datetime
from pathlib import Path

import pytest

from teampulse.memo import generate_memo, save_memo
from teampulse.models import AuditEntry, AuditWindow


def make_window(**kwargs):
    defaults = dict(
        presenter="Anna Bauer",
        moderator="Oliver Hofmann",
        start_time=datetime(2026, 5, 16, 10, 3, 42),
        end_time=datetime(2026, 5, 16, 10, 47, 15),
        entries=[
            AuditEntry("Thomas Wolf", "t.wolf@company.com"),
            AuditEntry("Klaus Huber", "k.huber@company.com"),
            AuditEntry("Sandra Vogel", "s.vogel@company.com"),
        ],
    )
    defaults.update(kwargs)
    return AuditWindow(**defaults)


def test_memo_contains_presenter_name():
    result = generate_memo(make_window())
    assert "Anna Bauer" in result


def test_memo_contains_time_window():
    result = generate_memo(make_window())
    assert "10:03:42" in result
    assert "10:47:15" in result


def test_memo_sorts_entries_by_email():
    result = generate_memo(make_window())
    idx_huber = result.index("k.huber@company.com")
    idx_vogel = result.index("s.vogel@company.com")
    idx_wolf = result.index("t.wolf@company.com")
    assert idx_huber < idx_vogel < idx_wolf


def test_memo_excludes_presenter():
    window = make_window(
        entries=[
            AuditEntry("Anna Bauer", "a.bauer@company.com"),
            AuditEntry("Klaus Huber", "k.huber@company.com"),
        ]
    )
    result = generate_memo(window)
    assert "a.bauer@company.com" not in result
    assert "k.huber@company.com" in result


def test_memo_excludes_moderator():
    window = make_window(
        entries=[
            AuditEntry("Oliver Hofmann", "o.hofmann@company.com"),
            AuditEntry("Klaus Huber", "k.huber@company.com"),
        ]
    )
    result = generate_memo(window)
    assert "o.hofmann@company.com" not in result
    assert "k.huber@company.com" in result


def test_memo_empty_window():
    window = make_window(entries=[])
    result = generate_memo(window)
    assert "Keine Chat-Aktivität" in result


def test_memo_contains_moderator_note():
    result = generate_memo(make_window())
    assert "Oliver Hofmann" in result


def test_save_memo_writes_file(tmp_path):
    window = make_window()
    path = save_memo(generate_memo(window), directory=tmp_path, timestamp=datetime(2026, 5, 16, 10, 51))
    assert path.exists()
    assert path.name == "audit_20260516_1051.md"
    assert "Anna Bauer" in path.read_text()