import asyncio
import os
from typing import Any

import aiohttp
from aiogram import Bot, Dispatcher, F
from aiogram.filters import Command
from aiogram.types import (
    Message,
    InlineKeyboardMarkup,
    InlineKeyboardButton,
    CallbackQuery,
)

API_URL = os.getenv("API_URL", "http://backend:8000")
BOT_TOKEN = os.getenv("BOT_TOKEN")

if not BOT_TOKEN:
    raise ValueError("BOT_TOKEN environment variable is required")

bot = Bot(token=BOT_TOKEN)
dp = Dispatcher()

# User preferences storage (in-memory, resets on restart)
user_prefs: dict[int, dict[str, Any]] = {}


def get_user_prefs(user_id: int) -> dict[str, Any]:
    if user_id not in user_prefs:
        user_prefs[user_id] = {
            "include_skills": True,
            "include_aspect": True,
            "items_count": 6,
        }
    return user_prefs[user_id]


def format_skill(skill: str) -> str:
    skill_map = {
        "q": "Q",
        "w": "W",
        "e": "E",
        "r": "R",
        "left_talent": "L",
        "right_talent": "R",
    }
    return skill_map.get(skill, skill)


def format_build(data: dict, is_daily: bool = False) -> str:
    lines = []

    if is_daily:
        lines.append(f"📅 <b>Build of the Day</b> ({data.get('date', 'N/A')})")
    else:
        lines.append("🎲 <b>Random Build</b>")

    lines.append("")

    # Hero
    hero = data["hero"]
    attr_emoji = {"strength": "💪", "agility": "🏃", "intelligence": "🧠"}
    emoji = attr_emoji.get(hero["primary"], "")
    lines.append(f"🦸 <b>Hero:</b> {hero['name']} {emoji}")

    # Items
    items = [item["name"] for item in data["items"]]
    lines.append(f"\n🎒 <b>Items:</b>")
    for item in items:
        lines.append(f"  • {item}")

    # Skill build
    if "skillBuild" in data and data["skillBuild"]:
        skill_build = data["skillBuild"]
        levels = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 18, 20, 25]
        skills_str = " ".join(
            format_skill(skill_build.get(str(lvl), "-")) for lvl in levels
        )
        lines.append(f"\n📊 <b>Skill Build:</b>")
        lines.append(f"<code>{skills_str}</code>")
        lines.append("<i>Levels: 1-16, 18, 20, 25</i>")

    # Aspect
    if "aspect" in data and data["aspect"]:
        lines.append(f"\n✨ <b>Aspect:</b> {data['aspect']}")

    return "\n".join(lines)


def get_settings_keyboard(user_id: int) -> InlineKeyboardMarkup:
    prefs = get_user_prefs(user_id)
    skills_text = "✅ Skills" if prefs["include_skills"] else "❌ Skills"
    aspect_text = "✅ Aspect" if prefs["include_aspect"] else "❌ Aspect"

    return InlineKeyboardMarkup(
        inline_keyboard=[
            [
                InlineKeyboardButton(text=skills_text, callback_data="toggle_skills"),
                InlineKeyboardButton(text=aspect_text, callback_data="toggle_aspect"),
            ],
            [
                InlineKeyboardButton(
                    text=f"Items: {prefs['items_count']}", callback_data="items_count"
                ),
            ],
            [
                InlineKeyboardButton(text="🎲 Generate", callback_data="generate"),
            ],
        ]
    )


def get_main_keyboard() -> InlineKeyboardMarkup:
    return InlineKeyboardMarkup(
        inline_keyboard=[
            [
                InlineKeyboardButton(text="🎲 Random Build", callback_data="random"),
                InlineKeyboardButton(text="📅 Build of Day", callback_data="daily"),
            ],
            [
                InlineKeyboardButton(text="⚙️ Settings", callback_data="settings"),
            ],
        ]
    )


@dp.message(Command("start"))
async def cmd_start(message: Message):
    await message.answer(
        "🎮 <b>Dota 2 Random Build Generator</b>\n\n"
        "Generate random builds for your Dota 2 challenges!\n\n"
        "Commands:\n"
        "/random - Generate random build\n"
        "/daily - Get build of the day\n"
        "/settings - Configure options",
        parse_mode="HTML",
        reply_markup=get_main_keyboard(),
    )


@dp.message(Command("random"))
async def cmd_random(message: Message):
    await generate_random_build(message)


@dp.message(Command("daily"))
async def cmd_daily(message: Message):
    await get_daily_build(message)


@dp.message(Command("settings"))
async def cmd_settings(message: Message):
    await message.answer(
        "⚙️ <b>Settings</b>\n\nConfigure your random build options:",
        parse_mode="HTML",
        reply_markup=get_settings_keyboard(message.from_user.id),
    )


@dp.callback_query(F.data == "random")
async def callback_random(callback: CallbackQuery):
    await callback.answer()
    await generate_random_build(callback.message, callback.from_user.id)


@dp.callback_query(F.data == "daily")
async def callback_daily(callback: CallbackQuery):
    await callback.answer()
    await get_daily_build(callback.message)


@dp.callback_query(F.data == "settings")
async def callback_settings(callback: CallbackQuery):
    await callback.answer()
    await callback.message.edit_text(
        "⚙️ <b>Settings</b>\n\nConfigure your random build options:",
        parse_mode="HTML",
        reply_markup=get_settings_keyboard(callback.from_user.id),
    )


@dp.callback_query(F.data == "toggle_skills")
async def callback_toggle_skills(callback: CallbackQuery):
    prefs = get_user_prefs(callback.from_user.id)
    prefs["include_skills"] = not prefs["include_skills"]
    await callback.answer(
        f"Skills: {'enabled' if prefs['include_skills'] else 'disabled'}"
    )
    await callback.message.edit_reply_markup(
        reply_markup=get_settings_keyboard(callback.from_user.id)
    )


@dp.callback_query(F.data == "toggle_aspect")
async def callback_toggle_aspect(callback: CallbackQuery):
    prefs = get_user_prefs(callback.from_user.id)
    prefs["include_aspect"] = not prefs["include_aspect"]
    await callback.answer(
        f"Aspect: {'enabled' if prefs['include_aspect'] else 'disabled'}"
    )
    await callback.message.edit_reply_markup(
        reply_markup=get_settings_keyboard(callback.from_user.id)
    )


@dp.callback_query(F.data == "items_count")
async def callback_items_count(callback: CallbackQuery):
    prefs = get_user_prefs(callback.from_user.id)
    # Cycle through 3, 4, 5, 6
    prefs["items_count"] = (prefs["items_count"] % 4) + 3
    await callback.answer(f"Items count: {prefs['items_count']}")
    await callback.message.edit_reply_markup(
        reply_markup=get_settings_keyboard(callback.from_user.id)
    )


@dp.callback_query(F.data == "generate")
async def callback_generate(callback: CallbackQuery):
    await callback.answer()
    await generate_random_build(callback.message, callback.from_user.id)


async def generate_random_build(message: Message, user_id: int = None):
    if user_id is None:
        user_id = message.from_user.id

    prefs = get_user_prefs(user_id)

    payload = {
        "includeSkills": prefs["include_skills"],
        "includeAspect": prefs["include_aspect"],
        "itemsCount": prefs["items_count"],
    }

    try:
        async with aiohttp.ClientSession() as session:
            async with session.post(
                f"{API_URL}/api/randomize", json=payload
            ) as response:
                if response.status == 200:
                    data = await response.json()
                    await message.answer(
                        format_build(data),
                        parse_mode="HTML",
                        reply_markup=get_main_keyboard(),
                    )
                else:
                    await message.answer(
                        "❌ Failed to generate build. Try again later.",
                        reply_markup=get_main_keyboard(),
                    )
    except Exception as e:
        await message.answer(
            f"❌ Error connecting to server: {e}",
            reply_markup=get_main_keyboard(),
        )


async def get_daily_build(message: Message):
    try:
        async with aiohttp.ClientSession() as session:
            async with session.get(f"{API_URL}/api/build-of-day") as response:
                if response.status == 200:
                    data = await response.json()
                    await message.answer(
                        format_build(data, is_daily=True),
                        parse_mode="HTML",
                        reply_markup=get_main_keyboard(),
                    )
                else:
                    await message.answer(
                        "❌ Failed to get daily build. Try again later.",
                        reply_markup=get_main_keyboard(),
                    )
    except Exception as e:
        await message.answer(
            f"❌ Error connecting to server: {e}",
            reply_markup=get_main_keyboard(),
        )


async def main():
    print("Bot started!")
    await dp.start_polling(bot)


if __name__ == "__main__":
    asyncio.run(main())