from fastapi import APIRouter, Query
from services.database import (
    get_pattern_reliability,
    get_all_pattern_reliability_map,
    get_calibration_data,
    decay_kb_confidence,
    get_custom_patterns,
)

router = APIRouter(prefix="/api/analytics", tags=["analytics"])


@router.get("/reliability")
def reliability_all():
    """Pattern reliability scores — all patterns with mature trade history."""
    return {"reliability": get_pattern_reliability()}


@router.get("/reliability/{pattern_id}")
def reliability_one(pattern_id: str):
    result = get_pattern_reliability(pattern_id=pattern_id)
    if not result:
        return {"reliability": None}
    return {"reliability": result[0]}


@router.get("/calibration")
def calibration(days: int = Query(default=365, ge=30, le=1000)):
    """Predicted probability vs realized outcomes (Brier score + buckets)."""
    return get_calibration_data(days=days)


@router.post("/kb/decay")
def run_kb_decay():
    """Manually trigger KB confidence decay (also runs at cycle start)."""
    updated = decay_kb_confidence()
    return {"updated": updated, "message": f"{updated} entrée(s) KB mise(s) à jour"}


@router.get("/invalidation-alerts")
def invalidation_alerts():
    """List all active patterns that have an invalidation trigger defined."""
    patterns = get_custom_patterns()
    alerts = [
        {
            "pattern_id": p["id"],
            "pattern_name": p["name"],
            "invalidation_trigger": p.get("invalidation_trigger"),
            "invalidation_probability": p.get("invalidation_probability"),
            "counter_thesis": p.get("counter_thesis"),
        }
        for p in patterns
        if p.get("invalidation_trigger")
    ]
    return {"alerts": alerts, "count": len(alerts)}