import string
from typing import TYPE_CHECKING

from aiogram import Router
from aiogram.filters import Command

from karkas_core.modules_system.public_api import (
    get_metainfo,
    get_module,
    register_router,
)

if TYPE_CHECKING:
    from aiogram.types import Message

    from karkas_blocks.standard.config import IConfig

config: "IConfig" = get_module("standard.config", "config")

try:
    (register_command, get_user_commands) = get_module(
        "standard.command_helper", ["register_command", "get_user_commands"]
    )
    COMMAND_HELPER_MODULE_LOADED = True
except Exception:
    COMMAND_HELPER_MODULE_LOADED = False
    pass

# We kindly ask you not to delete or change the following text without
# the consent of the «Karkas» project team.
FOOTER = """===============
Разработано командой ALT Gnome Infrastructure в рамках проекта Каркас.
Исходный код: https://gitflic.ru/project/alt-gnome/karkas
Оставить репорт: https://gitflic.ru/project/alt-gnome/karkas/issue/create
Руководитель проекта: Семен Фомченков
Ведущий разработчик: Максим Слипенко
Почта для связи: help@karkas.chat
Версия: $version
"""


def format_commands(commands_dict):
    formatted_commands = []
    for command, details in commands_dict.items():
        formatted_commands.append(f"/{command} - {details['long_description']}")
    return "\n".join(formatted_commands)


async def help(message: "Message"):
    commands = ""
    version = ""

    if COMMAND_HELPER_MODULE_LOADED:
        commands = format_commands(get_user_commands())

    metainfo = get_metainfo()
    if "app_version" in metainfo:
        version = metainfo["app_version"]

    await message.reply(
        string.Template(config.get("help::message") + "\n\n" + FOOTER).substitute(
            commands=commands, version=version or "не указана"
        )
    )


async def module_init():
    config.register(
        "help::message",
        "string",
        default_value="$commands",
    )

    router = Router()

    router.message.register(help, Command("help"))

    register_router(router)

    if COMMAND_HELPER_MODULE_LOADED:
        register_command("help", "Cправка")