"""Main trading agent implementation."""

from typing import Any

import httpx
from loguru import logger

from ..api.client import APIClient
from ..auth.client import AuthClient
from ..models.trading import (
    AccountInfo,
    MarketData,
    OrderStatus,
    OrderType,
    Position,
)


class TradingAgent:
    """Eastmoney Trading Agent

    This class provides methods for interacting with Eastmoney trading services,
    including login, placing orders, checking account status, and retrieving market data.
    """

    def __init__(self, username: str | None = None, password: str | None = None):
        """Initialize the trading agent

        Args:
            username: Eastmoney account username
            password: Eastmoney account password
        """
        self.username = username
        self.password = password
        self.is_logged_in = False
        self.account_info: AccountInfo | dict[str, Any] = {}
        self.logger = logger
        self.session = httpx.Client()
        self.auth_client = AuthClient(self.session)
        self.api_client = APIClient(self.session)

    def login(
        self,
        username: str | None = None,
        password: str | None = None,
        duration: int = 30,
    ) -> bool:
        """Login to Eastmoney account

        Args:
            username: Eastmoney account username (optional if provided in constructor)
            password: Eastmoney account password (optional if provided in constructor)
            duration: Eastmoney account login session duration in minutes (default: 30)

        Returns:
            bool: True if login successful, False otherwise

        Raises:
            LoginError: If login fails due to network or authentication issues
        """
        # Use provided credentials or fallback to instance variables
        login_username = username or self.username
        login_password = password or self.password

        if not login_username or not login_password:
            self.logger.error("Username and password are required for login")
            return False

        self.username = login_username
        self.password = login_password

        try:
            success, response = self.auth_client.login(
                login_username, login_password, duration
            )
            if success:
                self.is_logged_in = True
                asset_pos = self.api_client.get_asset_and_position(
                    self.auth_client.validate_key or ""
                )
                self.logger.info(asset_pos)
                self.account_info = {
                    "username": login_username,
                    "account_balance": 100000.0,
                    "positions": [],
                }
            return success
        except Exception as e:
            self.logger.error(f"Login failed: {e}")
            self.is_logged_in = False
            return False

    def logout(self) -> None:
        """Logout from Eastmoney account"""
        self.is_logged_in = False
        self.account_info = {}
        self.auth_client.logout()
        self.logger.info("Logged out successfully")

    def get_account_info(self) -> AccountInfo | dict[str, Any]:
        """Get account information

        Returns:
            Dict containing account information
        """
        if not self.is_logged_in:
            self.logger.warning("User not logged in")
            return {}

        # TODO: Implement actual account info retrieval
        return self.account_info

    def place_order(
        self, symbol: str, order_type: OrderType, quantity: float, price: float
    ) -> str | None:
        """Place a trading order

        Args:
            symbol: Stock symbol
            order_type: Order type (BUY or SELL)
            quantity: Number of shares
            price: Order price

        Returns:
            Order ID if successful, None otherwise
        """
        if not self.is_logged_in:
            self.logger.error("User not logged in")
            return None

        self.logger.info(
            f"Placing {order_type.value} order for {symbol}: "
            f"{quantity} shares at {price}"
        )

        # TODO: Implement actual order placement with Eastmoney API
        # This is a placeholder implementation
        order_id = f"order_{symbol}_{order_type.value}_{quantity}_{price}"

        self.logger.info(f"Order placed successfully with ID: {order_id}")
        return order_id

    def cancel_order(self, order_id: str) -> bool:
        """Cancel an existing order

        Args:
            order_id: ID of the order to cancel

        Returns:
            True if cancellation successful, False otherwise
        """
        if not self.is_logged_in:
            self.logger.error("User not logged in")
            return False

        self.logger.info(f"Cancelling order: {order_id}")

        # TODO: Implement actual order cancellation with Eastmoney API
        # This is a placeholder implementation
        self.logger.info(f"Order {order_id} cancelled successfully")
        return True

    def get_order_status(self, order_id: str) -> OrderStatus | None:
        """Get the status of an order

        Args:
            order_id: ID of the order to check

        Returns:
            Order status or None if order not found
        """
        if not self.is_logged_in:
            self.logger.error("User not logged in")
            return None

        # TODO: Implement actual order status checking with Eastmoney API
        # This is a placeholder implementation
        self.logger.info(f"Checking status for order: {order_id}")
        return OrderStatus.FILLED

    def get_market_data(self, symbol: str) -> MarketData | dict[str, Any]:
        """Get market data for a symbol

        Args:
            symbol: Stock symbol

        Returns:
            Dictionary containing market data
        """
        if not self.is_logged_in:
            self.logger.warning("User not logged in")
            return {}

        # TODO: Implement actual market data retrieval with Eastmoney API
        # This is a placeholder implementation
        self.logger.info(f"Retrieving market data for: {symbol}")
        return {
            "symbol": symbol,
            "last_price": 100.0,
            "bid_price": 99.9,
            "ask_price": 100.1,
            "volume": 1000000,
            "timestamp": "2025-08-23T10:00:00",
        }

    def get_positions(self) -> list[Position] | list[dict[str, Any]]:
        """Get current positions in the account

        Returns:
            List of position dictionaries
        """
        if not self.is_logged_in:
            self.logger.warning("User not logged in")
            return []

        # TODO: Implement actual positions retrieval with Eastmoney API
        return self.account_info.get("positions", [])
