import json
import random
import requests
from datetime import datetime
from config import settings


def searx_news(symbol: str, limit: int = 8):
    q = f"{symbol} stock news earnings guidance analyst"
    params = {"q": q, "format": "json", "language": "en"}
    try:
        r = requests.get(settings.searx_url, params=params, timeout=20)
        r.raise_for_status()
        data = r.json()
        out = []
        for it in data.get("results", [])[:limit]:
            out.append({"title": it.get("title", ""), "url": it.get("url", ""), "content": it.get("content", "")[:400]})
        return out
    except Exception:
        return []


def ollama_decide(symbol: str, context_items: list):
    prompt = {
        "task": "You are a strict trading policy engine. Return JSON only.",
        "constraints": {
            "actions": ["buy", "sell", "hold"],
            "max_order_usd": settings.max_order_usd,
            "style": "conservative intraday swing",
        },
        "symbol": symbol,
        "news": context_items,
        "output_schema": {
            "action": "buy|sell|hold",
            "confidence": "0-1",
            "reason": "short rationale",
            "order_usd": f"<= {settings.max_order_usd}",
        },
    }
    payload = {
        "model": settings.ollama_model,
        "prompt": json.dumps(prompt),
        "stream": False,
        "format": "json",
    }
    try:
        r = requests.post(f"{settings.ollama_url}/api/generate", json=payload, timeout=40)
        r.raise_for_status()
        resp = r.json().get("response", "{}")
        d = json.loads(resp)
        action = d.get("action", "hold").lower()
        if action not in {"buy", "sell", "hold"}:
            action = "hold"
        confidence = float(d.get("confidence", 0.5))
        order_usd = min(float(d.get("order_usd", settings.max_order_usd)), settings.max_order_usd)
        reason = d.get("reason", "fallback")
        return {"action": action, "confidence": confidence, "order_usd": order_usd, "reason": reason}
    except Exception:
        # resilient fallback to hold or tiny buy
        return {
            "action": random.choice(["hold", "hold", "buy"]),
            "confidence": 0.3,
            "order_usd": min(1.0, settings.max_order_usd),
            "reason": "fallback-mode",
        }


def alpaca_headers():
    return {
        "APCA-API-KEY-ID": settings.alpaca_key,
        "APCA-API-SECRET-KEY": settings.alpaca_secret,
        "Content-Type": "application/json",
    }


def alpaca_last_price(symbol: str):
    url = f"https://data.alpaca.markets/v2/stocks/{symbol}/trades/latest"
    try:
        r = requests.get(url, headers=alpaca_headers(), timeout=20)
        r.raise_for_status()
        return float(r.json()["trade"]["p"])
    except Exception:
        return None


def place_order(symbol: str, action: str, order_usd: float):
    if action not in {"buy", "sell"}:
        return None
    payload = {
        "symbol": symbol,
        "side": action,
        "type": "market",
        "time_in_force": "day",
        "notional": round(order_usd, 2),
    }
    try:
        r = requests.post(f"{settings.alpaca_base}/v2/orders", headers=alpaca_headers(), json=payload, timeout=20)
        return {"ok": r.ok, "status": r.status_code, "json": r.json() if r.text else {}}
    except Exception as e:
        return {"ok": False, "status": 0, "json": {"error": str(e)}}


def account_snapshot():
    try:
        r = requests.get(f"{settings.alpaca_base}/v2/account", headers=alpaca_headers(), timeout=20)
        r.raise_for_status()
        return r.json()
    except Exception:
        return {}