import json
import joblib
import pandas as pd
from pathlib import Path

HERE = Path(__file__).resolve().parent
pipe = joblib.load(HERE / "model.joblib")
features = json.loads((HERE / "features.json").read_text(encoding="utf-8"))

def predict_proba(df: pd.DataFrame):
    X = df[features].copy()
    return pipe.predict_proba(X)[:, 1]

def predict(df: pd.DataFrame, threshold: float = 0.5):
    proba = predict_proba(df)
    pred = (proba >= threshold).astype(int)
    return pred, proba