"""
AkDevz AI Market Intelligence — Shoonya (Finvasia) Broker Adapter
Genuinely zero-brokerage, 100% free trading API.
Uses User ID + Password + TOTP/API Key.
"""
import time
import hashlib
import logging
from typing import Dict, Any, List, Optional
from python.brokers.base_broker import BaseBrokerAdapter

logger = logging.getLogger(__name__)

class ShoonyaBrokerAdapter(BaseBrokerAdapter):
    BASE_URL = "https://api.shoonya.com/NorenWClientTP"

    def __init__(self, credentials: Dict[str, Any]):
        super().__init__("SHOONYA", credentials)
        self.user_id = credentials.get("client_id", "")
        self.api_key = credentials.get("api_key", "")
        self.password = credentials.get("secret_key", "")
        self.totp_key = credentials.get("pin_totp", "")
        self.susertoken = credentials.get("access_token", "")

    def authenticate(self) -> bool:
        if self.susertoken and len(self.susertoken) > 20:
            self.is_authenticated = True
            return True

        if not (self.user_id and self.password and self.api_key):
            return False

        try:
            pwd_hash = hashlib.sha256(self.password.encode('utf-8')).hexdigest()
            app_key = f"{self.user_id}|{self.api_key}"
            app_key_hash = hashlib.sha256(app_key.encode('utf-8')).hexdigest()

            import pyotp
            totp = pyotp.TOTP(self.totp_key).now() if self.totp_key else ""

            import requests
            payload = {
                "apkversion": "1.0.0",
                "uid": self.user_id,
                "pwd": pwd_hash,
                "factor2": totp,
                "vc": f"{self.user_id}_U",
                "appkey": app_key_hash,
                "imei": "12345"
            }
            resp = requests.post(f"{self.BASE_URL}/QuickAuth", data=f"jData={requests.compat.json.dumps(payload)}", timeout=10)
            if resp.status_code == 200:
                data = resp.json()
                if data.get("stat") == "Ok":
                    self.susertoken = data.get("susertoken", "")
                    self.is_authenticated = True
                    return True
        except Exception as e:
            logger.warning(f"Shoonya authentication error: {e}")
        return False

    def get_quotes(self, symbols: List[str]) -> Dict[str, Dict[str, Any]]:
        return {}

    def get_historical_candles(self, symbol: str, resolution: str = "5", range_from: str = "", range_to: str = "") -> List[List[Any]]:
        return []

    def get_option_chain(self, symbol: str, strike_count: int = 15) -> Optional[Dict[str, Any]]:
        return None

    def get_funds_and_margin(self) -> Dict[str, Any]:
        if not self.susertoken:
            return {"available_funds": 0.0, "used_margin": 0.0, "status": "UNAUTHENTICATED"}
        import requests
        try:
            payload = {"uid": self.user_id, "actid": self.user_id}
            resp = requests.post(f"{self.BASE_URL}/Limits", data=f"jData={requests.compat.json.dumps(payload)}&jKey={self.susertoken}", timeout=8)
            if resp.status_code == 200:
                d = resp.json()
                if d.get("stat") == "Ok":
                    avail = float(d.get("cash", 0.0))
                    used = float(d.get("marginused", 0.0))
                    return {"available_funds": avail, "used_margin": used, "status": "CONNECTED", "provider": "SHOONYA"}
        except Exception:
            pass
        return {"available_funds": 0.0, "used_margin": 0.0, "status": "ERROR"}

    def get_positions(self) -> List[Dict[str, Any]]:
        if not self.susertoken:
            return []
        import requests
        try:
            payload = {"uid": self.user_id, "actid": self.user_id}
            resp = requests.post(f"{self.BASE_URL}/PositionBook", data=f"jData={requests.compat.json.dumps(payload)}&jKey={self.susertoken}", timeout=8)
            if resp.status_code == 200:
                data = resp.json()
                if isinstance(data, list):
                    return data
        except Exception:
            pass
        return []

    def place_order(self, order_params: Dict[str, Any]) -> Dict[str, Any]:
        if not self.susertoken:
            return {"status": "error", "message": "Shoonya token missing"}
        import requests
        try:
            payload = {"uid": self.user_id, "actid": self.user_id, **order_params}
            resp = requests.post(f"{self.BASE_URL}/PlaceOrder", data=f"jData={requests.compat.json.dumps(payload)}&jKey={self.susertoken}", timeout=10)
            return resp.json()
        except Exception as e:
            return {"status": "error", "message": str(e)}

    def modify_order(self, order_id: str, params: Dict[str, Any]) -> Dict[str, Any]:
        return {"status": "error", "message": "Not implemented"}

    def cancel_order(self, order_id: str) -> Dict[str, Any]:
        return {"status": "error", "message": "Not implemented"}