import logging
from typing import Dict, Any, Optional
from telegram import Update
from telegram.ext import ContextTypes
from .base import InfoCommandsBase

logger = logging.getLogger(__name__)

class BalanceCommands(InfoCommandsBase):
    """Handles all balance-related commands."""

    async def balance_command(self, update: Update, context: ContextTypes.DEFAULT_TYPE) -> None:
        """Handle the /balance command."""
        try:
            if not self._is_authorized(update):
                await self._reply(update, "❌ Unauthorized access.")
                return

            stats = self.trading_engine.get_stats()
            if not stats:
                await self._reply(update, "❌ Trading stats not available.")
                return

            # Get balance info
            balance_info = stats.get_balance_info()
            if not balance_info:
                await self._reply(update, "❌ Balance information not available.")
                return

            # Format balance text
            balance_text = "💰 <b>Account Balance</b>\n\n"

            # Add total balance
            total_balance = balance_info.get('total_balance', 0.0)
            balance_text += f"💵 Total Balance: ${total_balance:,.2f}\n"

            # Add available balance
            available_balance = balance_info.get('available_balance', 0.0)
            balance_text += f"💳 Available Balance: ${available_balance:,.2f}\n"

            # Add margin used
            margin_used = balance_info.get('margin_used', 0.0)
            if margin_used > 0:
                balance_text += f"📊 Margin Used: ${margin_used:,.2f}\n"
                margin_ratio = (margin_used / total_balance) * 100 if total_balance > 0 else 0
                balance_text += f"⚖️ Margin Ratio: {margin_ratio:.2f}%\n"

            # Add unrealized P&L
            unrealized_pnl = balance_info.get('unrealized_pnl', 0.0)
            pnl_emoji = "🟢" if unrealized_pnl >= 0 else "🔴"
            balance_text += f"{pnl_emoji} Unrealized P&L: ${unrealized_pnl:,.2f}\n"

            # Add realized P&L if available
            realized_pnl = balance_info.get('realized_pnl', 0.0)
            if realized_pnl != 0:
                realized_emoji = "🟢" if realized_pnl >= 0 else "🔴"
                balance_text += f"{realized_emoji} Realized P&L: ${realized_pnl:,.2f}\n"

            # Add total P&L
            total_pnl = unrealized_pnl + realized_pnl
            total_pnl_emoji = "🟢" if total_pnl >= 0 else "🔴"
            balance_text += f"{total_pnl_emoji} Total P&L: ${total_pnl:,.2f}\n"

            # Add P&L percentage if margin is used
            if margin_used > 0:
                pnl_percentage = (total_pnl / margin_used) * 100
                balance_text += f"📈 Return on Margin: {pnl_percentage:+.2f}%\n"

            await self._reply(update, balance_text.strip())

        except Exception as e:
            logger.error(f"Error in balance command: {e}")
            await self._reply(update, "❌ Error retrieving balance information.")