"""Main menu (reply keyboard) and in-section navigation (inline keyboard), SPEC §4.0."""

from enum import StrEnum

from aiogram import F
from aiogram.filters.callback_data import CallbackData
from aiogram.types import ReplyKeyboardMarkup
from aiogram.utils.keyboard import ReplyKeyboardBuilder
from magic_filter import MagicFilter

from app.texts import Texts


class Section(StrEnum):
    COMMIT = "commit"
    STATUS = "status"
    LOGS = "logs"
    ALERTS = "alerts"
    MEMBERS = "members"


class NavAction(StrEnum):
    BACK = "back"
    CANCEL = "cancel"


class Nav(CallbackData, prefix="nav"):
    # Telegram limits callback_data to 64 bytes: only short ids here, never paths (ARCHITECTURE §2.1).
    action: NavAction


def section_by_button(texts: Texts) -> dict[str, Section]:
    m = texts.menu
    return {
        m.commit: Section.COMMIT,
        m.status: Section.STATUS,
        m.logs: Section.LOGS,
        m.alerts: Section.ALERTS,
        m.members: Section.MEMBERS,
    }


def free_input(texts: Texts) -> MagicFilter:
    """Input for a dialog step — anything but a main-menu button or a bot command: those must work from any step,
    otherwise «🩺 Статус» pressed while the bot waits for a file name becomes the file name."""
    return ~F.text.in_(set(section_by_button(texts))) & ~F.text.regexp(r"^/(start|menu|help)(@\w+)?(\s|$)")


def main_menu(texts: Texts, *, is_admin: bool) -> ReplyKeyboardMarkup:
    m = texts.menu
    kb = ReplyKeyboardBuilder()
    kb.button(text=m.commit)
    kb.button(text=m.status)
    kb.button(text=m.logs)
    kb.button(text=m.alerts)
    if is_admin:
        kb.button(text=m.members)
    kb.adjust(2, 2, 1)
    return kb.as_markup(resize_keyboard=True, is_persistent=True, input_field_placeholder=m.placeholder)