"""CRUD operations for Settings."""

import json
from typing import Optional
from sqlalchemy.orm import Session

from app.models.settings import Settings


def get_setting(db: Session, key: str) -> Optional[Settings]:
    """Get a setting by key."""
    return db.query(Settings).filter(Settings.key == key).first()


def get_setting_value(db: Session, key: str, default: any = None) -> any:
    """Get a setting value by key, with optional default."""
    setting = get_setting(db, key)
    if setting:
        return setting.get_value()
    return default


def update_setting(db: Session, key: str, value: any) -> Settings:
    """Update or create a setting."""
    setting = get_setting(db, key)
    
    if setting is None:
        setting = Settings(key=key)
        db.add(setting)
    
    # Determine how to store the value (DB has only bool + string columns)
    if isinstance(value, bool):
        setting.value_bool = value
        setting.value_str = None
    elif isinstance(value, str) and value.lower() in ("true", "false", "1", "0"):
        setting.value_bool = value.lower() in ("true", "1")
        setting.value_str = None
    elif isinstance(value, (dict, list)):
        setting.value_str = json.dumps(value)
        setting.value_bool = None
    else:
        setting.value_str = str(value)
        setting.value_bool = None
    
    db.commit()
    db.refresh(setting)
    return setting


def get_all_settings(db: Session) -> list[Settings]:
    """Get all settings."""
    return db.query(Settings).all()