# -*- coding: utf-8 -*-
"""Чистые функции без сервера: гигиена гостевого текста и гейт «бар открыт»."""
import sys
from datetime import datetime, timedelta
from pathlib import Path

sys.path.insert(0, str(Path(__file__).resolve().parents[1]))

from server import BAR_TZ, bar_is_open, next_bar_opening  # noqa: E402
from storage import clean_guest_text  # noqa: E402

# 2026-10-05 — понедельник; от него строим любой день недели
MONDAY = datetime(2026, 10, 5, 12, 0, tzinfo=BAR_TZ)


def dt(day: str, hour: int, minute: int = 0) -> datetime:
    shift = "mon tue wed thu fri sat sun".split().index(day)
    return MONDAY.replace(hour=hour, minute=minute) + timedelta(days=shift)


# ------------------------------------------------------------- clean_guest_text

def test_clean_text_removes_hidden_chars():
    assert clean_guest_text("Кола\u200b", 60) == "Кола"          # zero-width space
    assert clean_guest_text("\ufeffпиво\u200e", 60) == "пиво"     # BOM + LRM
    assert clean_guest_text("a\x00b\x1f[c]\x7f", 60) == "ab[c]"  # control chars
    assert clean_guest_text("ab\u202edc", 60) == "abdc"           # bidi override


def test_clean_text_keeps_normal_text_and_emoji():
    text = "Столик у окна, пиво 🍺 и — тире"
    assert clean_guest_text(text, 60) == text


def test_clean_text_truncates_to_limit():
    assert len(clean_guest_text("х" * 500, 60)) == 60


# ------------------------------------------------------------------ бар открыт?

def test_bar_open_in_the_evening():
    assert bar_is_open(dt("fri", 21)) is True
    assert bar_is_open(dt("sat", 21)) is True
    assert bar_is_open(dt("sun", 20)) is True


def test_bar_closed_monday_evening():
    # понедельник — вечерних сессий нет (BAR_CLOSED_WEEKDAY)
    assert bar_is_open(dt("mon", 21)) is False


def test_bar_tail_after_midnight():
    assert bar_is_open(dt("sat", 2)) is True       # хвост пятницы до 03:00
    assert bar_is_open(dt("sun", 2)) is True       # хвост субботы до 03:00
    assert bar_is_open(dt("tue", 0, 30)) is False  # во вторник хвоста нет
    assert bar_is_open(dt("sat", 3, 30)) is False  # хвост закончился


def test_preorder_window_is_one_hour():
    now = dt("fri", 18, 30)
    opening = next_bar_opening(now)
    assert opening is not None and (opening - now) <= timedelta(hours=1)

    now2 = dt("fri", 17, 0)
    opening2 = next_bar_opening(now2)
    assert (opening2 - now2) > timedelta(hours=1)


def test_next_opening_skips_monday():
    # воскресенье 21:00 → ближайшее открытие во вторник 19:00, не в понедельник
    opening = next_bar_opening(dt("sun", 21))
    assert opening is not None
    assert opening.weekday() == 1  # вторник