from datetime import datetime

from logger import LOG_ENCODING, append_log, log_path_for_today


def fixed_now():
    return datetime(2026, 8, 2, 10, 30, 15)


def test_log_path_for_today_uses_now_func(tmp_path):
    result = log_path_for_today(tmp_path, now_func=fixed_now)
    assert result == tmp_path / "2026-08-02.log"


def test_append_log_creates_dir_and_file(tmp_path):
    log_dir = tmp_path / "ログ"

    append_log(
        log_dir,
        result="成功",
        original_filename="scan001.pdf",
        name="山田太郎",
        date="20260802",
        note="",
        now_func=fixed_now,
    )

    log_path = log_dir / "2026-08-02.log"
    assert log_path.exists()

    content = log_path.read_text(encoding=LOG_ENCODING)
    assert "[2026-08-02 10:30:15]" in content
    assert "結果=成功" in content
    assert "元ファイル=scan001.pdf" in content
    assert "氏名=山田太郎" in content
    assert "日付=20260802" in content


def test_append_log_handles_none_name_and_date(tmp_path):
    log_dir = tmp_path / "ログ"

    append_log(
        log_dir,
        result="失敗",
        original_filename="scan002.pdf",
        name=None,
        date=None,
        note="抽出不十分",
        now_func=fixed_now,
    )

    content = (log_dir / "2026-08-02.log").read_text(encoding=LOG_ENCODING)
    assert "氏名=" in content
    assert "日付=" in content
    assert "備考=抽出不十分" in content


def test_append_log_appends_multiple_lines(tmp_path):
    log_dir = tmp_path / "ログ"

    append_log(log_dir, "成功", "a.pdf", "氏名A", "20260801", "", now_func=fixed_now)
    append_log(log_dir, "成功", "b.pdf", "氏名B", "20260802", "", now_func=fixed_now)

    content = (log_dir / "2026-08-02.log").read_text(encoding=LOG_ENCODING)
    assert content.count("結果=成功") == 2