import os

from io import BytesIO
from typing import Any

import asyncpg
import qrcode

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

from config import CONNECT_ANDROID, CONNECT_IOS, DATABASE_URL, DOWNLOAD_ANDROID, DOWNLOAD_IOS, INSTRUCTIONS_BUTTON
from handlers.buttons import (
    ANDROID,
    BACK,
    DOWNLOAD_ANDROID_BUTTON,
    DOWNLOAD_IOS_BUTTON,
    IMPORT_ANDROID,
    IMPORT_IOS,
    IPHONE,
    MAIN_MENU,
    MANUAL_INSTRUCTIONS,
    PC,
    TV,
)
from handlers.texts import (
    ANDROID_DESCRIPTION_TEMPLATE,
    CHOOSE_DEVICE_TEXT,
    IOS_DESCRIPTION_TEMPLATE,
    SUBSCRIPTION_DESCRIPTION,
)
from handlers.utils import edit_or_send_message
from logger import logger


router = Router()


@router.callback_query(F.data.startswith("connect_device|"))
async def handle_connect_device(callback_query: CallbackQuery):
    try:
        key_name = callback_query.data.split("|")[1]

        builder = InlineKeyboardBuilder()
        builder.row(InlineKeyboardButton(text=IPHONE, callback_data=f"connect_ios|{key_name}"))
        builder.row(InlineKeyboardButton(text=ANDROID, callback_data=f"connect_android|{key_name}"))
        builder.row(InlineKeyboardButton(text=PC, callback_data=f"connect_pc|{key_name}"))
        builder.row(InlineKeyboardButton(text=TV, callback_data=f"connect_tv|{key_name}"))
        #    builder.row(InlineKeyboardButton(text=ROUTER, callback_data=f"connect_router|{key_name}"))
        builder.row(InlineKeyboardButton(text=BACK, callback_data=f"view_key|{key_name}"))

        await edit_or_send_message(
            target_message=callback_query.message,
            text=CHOOSE_DEVICE_TEXT,
            reply_markup=builder.as_markup(),
            media_path=None,
        )
    except Exception as e:
        await callback_query.message.answer("❌ Ошибка при показе меню подключения.")
        logger.error(f"Ошибка в handle_connect_device: {e}")


@router.callback_query(F.data.startswith("connect_phone|"))
async def process_callback_connect_phone(callback_query: CallbackQuery):
    email = callback_query.data.split("|")[1]

    conn = None
    try:
        conn = await asyncpg.connect(DATABASE_URL)
        key_data = await conn.fetchrow(
            """
            SELECT key FROM keys WHERE email = $1
            """,
            email,
        )
        if not key_data:
            await callback_query.message.answer("❌ Ошибка: ключ не найден.")
            return

        key_link = key_data["key"]

    except Exception as e:
        logger.error(f"Ошибка при получении ключа для {email}: {e}")
        await callback_query.message.answer("❌ Произошла ошибка. Попробуйте позже.")
        return
    finally:
        if conn:
            await conn.close()

    description = SUBSCRIPTION_DESCRIPTION.format(key_link=key_link)

    builder = InlineKeyboardBuilder()
    builder.row(
        InlineKeyboardButton(text=DOWNLOAD_IOS_BUTTON, url=DOWNLOAD_IOS),
        InlineKeyboardButton(text=DOWNLOAD_ANDROID_BUTTON, url=DOWNLOAD_ANDROID),
    )
    builder.row(
        InlineKeyboardButton(text=IMPORT_IOS, url=f"{CONNECT_IOS}{key_link}"),
        InlineKeyboardButton(text=IMPORT_ANDROID, url=f"{CONNECT_ANDROID}{key_link}"),
    )
    if INSTRUCTIONS_BUTTON:
        builder.row(InlineKeyboardButton(text=MANUAL_INSTRUCTIONS, callback_data="instructions"))
    builder.row(InlineKeyboardButton(text=BACK, callback_data=f"view_key|{email}"))

    await edit_or_send_message(
        target_message=callback_query.message, text=description, reply_markup=builder.as_markup(), media_path=None
    )


@router.callback_query(F.data.startswith("connect_ios|"))
async def process_callback_connect_ios(callback_query: CallbackQuery):
    email = callback_query.data.split("|")[1]

    conn = None
    try:
        conn = await asyncpg.connect(DATABASE_URL)
        key_data = await conn.fetchrow("SELECT key FROM keys WHERE email = $1", email)
        if not key_data:
            await callback_query.message.answer("❌ Ошибка: ключ не найден.")
            return

        key_link = key_data["key"]

    except Exception as e:
        logger.error(f"Ошибка при получении ключа для {email} (iOS): {e}")
        await callback_query.message.answer("❌ Произошла ошибка. Попробуйте позже.")
        return
    finally:
        if conn:
            await conn.close()

    description = IOS_DESCRIPTION_TEMPLATE.format(key_link=key_link)

    builder = InlineKeyboardBuilder()
    builder.row(InlineKeyboardButton(text=DOWNLOAD_IOS_BUTTON, url=DOWNLOAD_IOS))
    builder.row(InlineKeyboardButton(text=IMPORT_IOS, url=f"{CONNECT_IOS}{key_link}"))
    if INSTRUCTIONS_BUTTON:
        builder.row(InlineKeyboardButton(text=MANUAL_INSTRUCTIONS, callback_data="instructions"))
    builder.row(InlineKeyboardButton(text=BACK, callback_data=f"view_key|{email}"))
    builder.row(InlineKeyboardButton(text=MAIN_MENU, callback_data="profile"))

    await edit_or_send_message(
        target_message=callback_query.message,
        text=description,
        reply_markup=builder.as_markup(),
        media_path=None,
    )


@router.callback_query(F.data.startswith("connect_android|"))
async def process_callback_connect_android(callback_query: CallbackQuery):
    email = callback_query.data.split("|")[1]

    conn = None
    try:
        conn = await asyncpg.connect(DATABASE_URL)
        key_data = await conn.fetchrow("SELECT key FROM keys WHERE email = $1", email)
        if not key_data:
            await callback_query.message.answer("❌ Ошибка: ключ не найден.")
            return

        key_link = key_data["key"]

    except Exception as e:
        logger.error(f"Ошибка при получении ключа для {email} (Android): {e}")
        await callback_query.message.answer("❌ Произошла ошибка. Попробуйте позже.")
        return
    finally:
        if conn:
            await conn.close()

    description = ANDROID_DESCRIPTION_TEMPLATE.format(key_link=key_link)

    builder = InlineKeyboardBuilder()
    builder.row(InlineKeyboardButton(text=DOWNLOAD_ANDROID_BUTTON, url=DOWNLOAD_ANDROID))
    builder.row(InlineKeyboardButton(text=IMPORT_ANDROID, url=f"{CONNECT_ANDROID}{key_link}"))
    if INSTRUCTIONS_BUTTON:
        builder.row(InlineKeyboardButton(text=MANUAL_INSTRUCTIONS, callback_data="instructions"))
    builder.row(InlineKeyboardButton(text=BACK, callback_data=f"view_key|{email}"))
    builder.row(InlineKeyboardButton(text=MAIN_MENU, callback_data="profile"))

    await edit_or_send_message(
        target_message=callback_query.message,
        text=description,
        reply_markup=builder.as_markup(),
        media_path=None,
    )


@router.callback_query(F.data.startswith("show_qr|"))
async def show_qr_code(callback_query: types.CallbackQuery, session: Any):
    try:
        key_name = callback_query.data.split("|")[1]

        record = await session.fetchrow("SELECT key, email FROM keys WHERE email = $1", key_name)
        if not record:
            await callback_query.message.answer("❌ Подписка не найдена.")
            return

        qr = qrcode.QRCode(version=1, box_size=10, border=4)
        qr.add_data(record["key"])
        qr.make(fit=True)

        img = qr.make_image(fill_color="black", back_color="white")
        buffer = BytesIO()
        img.save(buffer, format="PNG")
        buffer.seek(0)

        qr_path = f"/tmp/qrcode_{record['email']}.png"
        with open(qr_path, "wb") as f:
            f.write(buffer.read())

        builder = InlineKeyboardBuilder()
        builder.row(InlineKeyboardButton(text=BACK, callback_data=f"view_key|{record['email']}"))
        builder.row(InlineKeyboardButton(text=MAIN_MENU, callback_data="profile"))

        await edit_or_send_message(
            target_message=callback_query.message,
            text="🔲 <b>Ваш QR-код для подключения</b>",
            reply_markup=builder.as_markup(),
            media_path=qr_path,
        )

        os.remove(qr_path)

    except Exception as e:
        logger.error(f"Ошибка при генерации QR: {e}", exc_info=True)
        await callback_query.message.answer("❌ Произошла ошибка при создании QR-кода.")