# ================================================================
# FORECASTING SERVICE CONFIGURATION  
# services/forecasting/app/core/config.py
# ================================================================

"""
Forecasting service configuration
Demand prediction and forecasting
"""

from shared.config.base import BaseServiceSettings
import os

class ForecastingSettings(BaseServiceSettings):
    """Forecasting service specific settings"""
    
    # Service Identity
    APP_NAME: str = "Forecasting Service"
    SERVICE_NAME: str = "forecasting-service"
    DESCRIPTION: str = "Demand prediction and forecasting service"
    
    # Database configuration (secure approach - build from components)
    @property
    def DATABASE_URL(self) -> str:
        """Build database URL from secure components"""
        # Try complete URL first (for backward compatibility)
        complete_url = os.getenv("FORECASTING_DATABASE_URL")
        if complete_url:
            return complete_url

        # Build from components (secure approach)
        user = os.getenv("FORECASTING_DB_USER", "forecasting_user")
        password = os.getenv("FORECASTING_DB_PASSWORD", "forecasting_pass123")
        host = os.getenv("FORECASTING_DB_HOST", "localhost")
        port = os.getenv("FORECASTING_DB_PORT", "5432")
        name = os.getenv("FORECASTING_DB_NAME", "forecasting_db")

        return f"postgresql+asyncpg://{user}:{password}@{host}:{port}/{name}"
    
    # Redis Database (dedicated for prediction cache)
    REDIS_DB: int = 2
    
    # Prediction Configuration
    MAX_FORECAST_DAYS: int = int(os.getenv("MAX_FORECAST_DAYS", "30"))
    MIN_HISTORICAL_DAYS: int = int(os.getenv("MIN_HISTORICAL_DAYS", "60"))
    PREDICTION_CONFIDENCE_THRESHOLD: float = float(os.getenv("PREDICTION_CONFIDENCE_THRESHOLD", "0.8"))
    
    # Caching Configuration
    PREDICTION_CACHE_TTL_HOURS: int = int(os.getenv("PREDICTION_CACHE_TTL_HOURS", "6"))
    FORECAST_BATCH_SIZE: int = int(os.getenv("FORECAST_BATCH_SIZE", "100"))
    
    # MinIO Configuration
    MINIO_ENDPOINT: str = os.getenv("MINIO_ENDPOINT", "minio.bakery-ia.svc.cluster.local:9000")
    MINIO_ACCESS_KEY: str = os.getenv("FORECASTING_MINIO_ACCESS_KEY", "forecasting-service")
    MINIO_SECRET_KEY: str = os.getenv("FORECASTING_MINIO_SECRET_KEY", "forecasting-secret-key")
    MINIO_USE_SSL: bool = os.getenv("MINIO_USE_SSL", "true").lower() == "true"
    MINIO_MODEL_BUCKET: str = os.getenv("MINIO_MODEL_BUCKET", "training-models")
    MINIO_CONSOLE_PORT: str = os.getenv("MINIO_CONSOLE_PORT", "9001")
    MINIO_API_PORT: str = os.getenv("MINIO_API_PORT", "9000")
    MINIO_REGION: str = os.getenv("MINIO_REGION", "us-east-1")
    MINIO_MODEL_LIFECYCLE_DAYS: int = int(os.getenv("MINIO_MODEL_LIFECYCLE_DAYS", "90"))
    MINIO_CACHE_TTL_SECONDS: int = int(os.getenv("MINIO_CACHE_TTL_SECONDS", "3600"))
    
    # Real-time Forecasting
    REALTIME_FORECASTING_ENABLED: bool = os.getenv("REALTIME_FORECASTING_ENABLED", "true").lower() == "true"
    FORECAST_UPDATE_INTERVAL_HOURS: int = int(os.getenv("FORECAST_UPDATE_INTERVAL_HOURS", "6"))
    
    # Business Rules for Spanish Bakeries
    BUSINESS_HOUR_START: int = 7  # 7 AM
    BUSINESS_HOUR_END: int = 20   # 8 PM
    WEEKEND_ADJUSTMENT_FACTOR: float = float(os.getenv("WEEKEND_ADJUSTMENT_FACTOR", "0.8"))
    HOLIDAY_ADJUSTMENT_FACTOR: float = float(os.getenv("HOLIDAY_ADJUSTMENT_FACTOR", "0.5"))
    
    # Weather Impact Modeling
    WEATHER_IMPACT_ENABLED: bool = os.getenv("WEATHER_IMPACT_ENABLED", "true").lower() == "true"
    TEMPERATURE_THRESHOLD_COLD: float = float(os.getenv("TEMPERATURE_THRESHOLD_COLD", "10.0"))
    TEMPERATURE_THRESHOLD_HOT: float = float(os.getenv("TEMPERATURE_THRESHOLD_HOT", "30.0"))
    RAIN_IMPACT_FACTOR: float = float(os.getenv("RAIN_IMPACT_FACTOR", "0.7"))
    

settings = ForecastingSettings()
