"""
Broker interface for live trading.
"""

import pandas as pd
from abc import ABC, abstractmethod
from typing import Dict, List, Optional, Any
from datetime import datetime
from ..core.base import BaseComponent
from ..core.exceptions import TradingError


class Broker(BaseComponent, ABC):
    """Abstract broker interface for live trading."""
    
    def initialize(self) -> bool:
        """Initialize broker connection."""
        self.logger.info("Initializing broker connection")
        return self._connect()
    
    @abstractmethod
    def _connect(self) -> bool:
        """Connect to broker."""
        pass
    
    @abstractmethod
    def place_order(self, symbol: str, quantity: int, order_type: str, 
                   price: Optional[float] = None) -> str:
        """Place an order with the broker."""
        pass
    
    @abstractmethod
    def cancel_order(self, order_id: str) -> bool:
        """Cancel an order."""
        pass
    
    @abstractmethod
    def get_order_status(self, order_id: str) -> Dict[str, Any]:
        """Get order status."""
        pass
    
    @abstractmethod
    def get_account_info(self) -> Dict[str, Any]:
        """Get account information."""
        pass
    
    @abstractmethod
    def get_positions(self) -> Dict[str, Dict[str, Any]]:
        """Get current positions."""
        pass
    
    @abstractmethod
    def get_current_price(self, symbol: str) -> float:
        """Get current price for symbol."""
        pass


class MockBroker(Broker):
    """Mock broker for testing purposes."""
    
    def __init__(self, **kwargs):
        """Initialize mock broker."""
        super().__init__(**kwargs)
        self.orders = {}
        self.positions = {}
        self.account_balance = 100000
        self.order_counter = 0
    
    def _connect(self) -> bool:
        """Mock connection."""
        self.logger.info("Connected to mock broker")
        return True
    
    def place_order(self, symbol: str, quantity: int, order_type: str, 
                   price: Optional[float] = None) -> str:
        """Place a mock order."""
        self.order_counter += 1
        order_id = f"MOCK_{self.order_counter}"
        
        self.orders[order_id] = {
            'symbol': symbol,
            'quantity': quantity,
            'order_type': order_type,
            'price': price,
            'status': 'pending',
                        'timestamp': datetime.now()
        }
        
        self.logger.info(f"Mock order placed: {order_id}")
        return order_id
    
    def cancel_order(self, order_id: str) -> bool:
        """Cancel a mock order."""
        if order_id in self.orders:
            self.orders[order_id]['status'] = 'cancelled'
            self.logger.info(f"Mock order cancelled: {order_id}")
            return True
        return False
    
    def get_order_status(self, order_id: str) -> Dict[str, Any]:
        """Get mock order status."""
        return self.orders.get(order_id, {})
    
    def get_account_info(self) -> Dict[str, Any]:
        """Get mock account info."""
        return {
            'balance': self.account_balance,
            'buying_power': self.account_balance,
            'equity': self.account_balance
        }
    
    def get_positions(self) -> Dict[str, Dict[str, Any]]:
        """Get mock positions."""
        return self.positions
    
    def get_current_price(self, symbol: str) -> float:
        """Get mock current price."""
        # Return a mock price
        return 100.0
