import time

from typing import Any

from aiogram import F, Router
from aiogram.types import CallbackQuery, InlineKeyboardButton
from aiogram.utils.keyboard import InlineKeyboardBuilder

from config import (
    TOTAL_GB,
)
from database import (
    get_key_details,
)
from handlers.buttons import (
    APPLY,
    BACK,
    CANCEL,
)
from handlers.keys.key_utils import (
    renew_key_in_cluster,
    toggle_client_on_cluster,
)
from handlers.texts import (
    FREEZE_SUBSCRIPTION_CONFIRM_MSG,
    SUBSCRIPTION_FROZEN_MSG,
    SUBSCRIPTION_UNFROZEN_MSG,
    UNFREEZE_SUBSCRIPTION_CONFIRM_MSG,
)
from handlers.utils import edit_or_send_message, handle_error


router = Router()


@router.callback_query(F.data.startswith("unfreeze_subscription|"))
async def process_callback_unfreeze_subscription(callback_query: CallbackQuery, session: Any):
    key_name = callback_query.data.split("|")[1]
    confirm_text = UNFREEZE_SUBSCRIPTION_CONFIRM_MSG

    builder = InlineKeyboardBuilder()
    builder.row(
        InlineKeyboardButton(
            text=APPLY,
            callback_data=f"unfreeze_subscription_confirm|{key_name}",
        ),
        InlineKeyboardButton(
            text=CANCEL,
            callback_data=f"view_key|{key_name}",
        ),
    )

    await edit_or_send_message(
        target_message=callback_query.message,
        text=confirm_text,
        reply_markup=builder.as_markup(),
    )


@router.callback_query(F.data.startswith("unfreeze_subscription_confirm|"))
async def process_callback_unfreeze_subscription_confirm(callback_query: CallbackQuery, session: Any):
    """
    Размораживает (включает) подписку.
    """
    tg_id = callback_query.message.chat.id
    key_name = callback_query.data.split("|")[1]

    try:
        record = await get_key_details(key_name, session)
        if not record:
            await callback_query.message.answer("Ключ не найден.")
            return

        email = record["email"]
        client_id = record["client_id"]
        cluster_id = record["server_id"]

        result = await toggle_client_on_cluster(cluster_id, email, client_id, enable=True)
        if result["status"] == "success":
            now_ms = int(time.time() * 1000)
            leftover = record["expiry_time"]
            if leftover < 0:
                leftover = 0

            new_expiry_time = now_ms + leftover
            await session.execute(
                """
                UPDATE keys
                SET expiry_time = $1,
                    is_frozen = FALSE
                WHERE tg_id = $2
                  AND client_id = $3
                """,
                new_expiry_time,
                record["tg_id"],
                client_id,
            )
            added_days = max(leftover / (1000 * 86400), 0.01)
            total_gb = int((added_days / 30) * TOTAL_GB * 1024**3)

            await renew_key_in_cluster(
                cluster_id=cluster_id,
                email=email,
                client_id=client_id,
                new_expiry_time=new_expiry_time,
                total_gb=total_gb,
            )
            text_ok = SUBSCRIPTION_UNFROZEN_MSG
            builder = InlineKeyboardBuilder()
            builder.row(InlineKeyboardButton(text=BACK, callback_data=f"view_key|{key_name}"))
            await edit_or_send_message(
                target_message=callback_query.message,
                text=text_ok,
                reply_markup=builder.as_markup(),
            )
        else:
            text_error = (
                f"Произошла ошибка при включении подписки.\nДетали: {result.get('error') or result.get('results')}"
            )
            builder = InlineKeyboardBuilder()
            builder.row(InlineKeyboardButton(text=BACK, callback_data=f"view_key|{key_name}"))
            await edit_or_send_message(
                target_message=callback_query.message,
                text=text_error,
                reply_markup=builder.as_markup(),
            )

    except Exception as e:
        await handle_error(tg_id, callback_query, f"Ошибка при включении подписки: {e}")


@router.callback_query(F.data.startswith("freeze_subscription|"))
async def process_callback_freeze_subscription(callback_query: CallbackQuery, session: Any):
    """
    Показывает пользователю диалог подтверждения заморозки (отключения) подписки.
    """
    key_name = callback_query.data.split("|")[1]

    confirm_text = FREEZE_SUBSCRIPTION_CONFIRM_MSG

    builder = InlineKeyboardBuilder()
    builder.row(
        InlineKeyboardButton(
            text=APPLY,
            callback_data=f"freeze_subscription_confirm|{key_name}",
        ),
        InlineKeyboardButton(
            text=CANCEL,
            callback_data=f"view_key|{key_name}",
        ),
    )

    await edit_or_send_message(
        target_message=callback_query.message,
        text=confirm_text,
        reply_markup=builder.as_markup(),
    )


@router.callback_query(F.data.startswith("freeze_subscription_confirm|"))
async def process_callback_freeze_subscription_confirm(callback_query: CallbackQuery, session: Any):
    """
    Замораживает (отключает) подписку.
    """
    tg_id = callback_query.message.chat.id
    key_name = callback_query.data.split("|")[1]

    try:
        record = await get_key_details(key_name, session)
        if not record:
            await callback_query.message.answer("Ключ не найден.")
            return

        email = record["email"]
        client_id = record["client_id"]
        cluster_id = record["server_id"]

        result = await toggle_client_on_cluster(cluster_id, email, client_id, enable=False)

        if result["status"] == "success":
            now_ms = int(time.time() * 1000)
            time_left = record["expiry_time"] - now_ms
            if time_left < 0:
                time_left = 0

            await session.execute(
                """
                UPDATE keys
                SET expiry_time = $1,
                    is_frozen = TRUE
                WHERE tg_id = $2
                  AND client_id = $3
                """,
                time_left,
                record["tg_id"],
                client_id,
            )

            text_ok = SUBSCRIPTION_FROZEN_MSG
            builder = InlineKeyboardBuilder()
            builder.row(InlineKeyboardButton(text=BACK, callback_data=f"view_key|{key_name}"))
            await edit_or_send_message(
                target_message=callback_query.message,
                text=text_ok,
                reply_markup=builder.as_markup(),
            )
        else:
            text_error = (
                f"Произошла ошибка при заморозке подписки.\nДетали: {result.get('error') or result.get('results')}"
            )
            builder = InlineKeyboardBuilder()
            builder.row(InlineKeyboardButton(text=BACK, callback_data=f"view_key|{key_name}"))
            await edit_or_send_message(
                target_message=callback_query.message,
                text=text_error,
                reply_markup=builder.as_markup(),
            )

    except Exception as e:
        await handle_error(tg_id, callback_query, f"Ошибка при заморозке подписки: {e}")