Real-Time Alert & Signal Pipeline

from dataclasses import dataclass, field
from datetime import datetime
from typing import Callable, Optional
import json

@dataclass
class AlertCondition:
    name: str
    check_fn: Callable  # returns True/False
    priority: str = "MEDIUM"  # HIGH, MEDIUM, LOW
    cooldown_minutes: int = 60
    last_triggered: Optional[datetime] = None

@dataclass
class AlertRule:
    id: str
    name: str
    conditions: list[AlertCondition]
    logic: str = "ALL"  # ALL (AND) or ANY (OR)
    channels: list[str] = field(default_factory=lambda: ["console"])
    message_template: str = ""

class AlertPipeline:

    def __init__(self):
        self.rules: list[AlertRule] = []
        self.triggered_alerts: list[dict] = []

    def add_rule(self, rule: AlertRule):
        self.rules.append(rule)

    def check_all(self, context: dict) -> list[dict]:
        """Check all rules against current market context."""
        triggered = []
        now = datetime.utcnow()
        for rule in self.rules:
            results = []
            for cond in rule.conditions:
                if cond.last_triggered and (now - cond.last_triggered).seconds < cond.cooldown_minutes * 60:
                    results.append(False)
                    continue
                try:
                    results.append(cond.check_fn(context))
                except:
                    results.append(False)

            fire = all(results) if rule.logic == "ALL" else any(results)
            if fire:
                alert = {
                    "rule_id": rule.id, "name": rule.name, "time": now.isoformat(),
                    "priority": max((c.priority for c in rule.conditions), key=lambda p: {"HIGH": 3, "MEDIUM": 2, "LOW": 1}[p]),
                    "channels": rule.channels,
                    "message": rule.message_template.format(**context) if rule.message_template else rule.name,
                }
                triggered.append(alert)
                for cond in rule.conditions:
                    cond.last_triggered = now
        self.triggered_alerts.extend(triggered)
        return triggered

    def format_for_telegram(self, alert: dict) -> str:
        return f"🚨 *{alert['priority']}* — {alert['name']}\n{alert['message']}\n⏰ {alert['time']}"

    def format_for_mt5(self, alert: dict) -> str:
        return f"Alert(\"{alert['name']}\", \"{alert['message']}\");"

# Preset alert conditions
def price_above(symbol: str, level: float):
    return AlertCondition(f"{symbol} > {level}", lambda ctx: ctx.get(f"{symbol}_price", 0) > level, "HIGH")

def rsi_extreme(symbol: str, overbought: float = 70, oversold: float = 30):
    return AlertCondition(f"{symbol} RSI extreme",
        lambda ctx: ctx.get(f"{symbol}_rsi", 50) > overbought or ctx.get(f"{symbol}_rsi", 50) < oversold, "MEDIUM")

def correlation_shift(pair: str, threshold: float = 0.3):
    return AlertCondition(f"{pair} corr shift",
        lambda ctx: abs(ctx.get(f"{pair}_corr_deviation", 0)) > threshold, "HIGH")