from pydantic_settings import BaseSettings
from typing import List, Optional
import os


class Settings(BaseSettings):
    # Database
    database_url: str = "postgresql://user:password@localhost:5432/donshare_db"
    database_test_url: str = "postgresql://user:password@localhost:5432/donshare_test_db"
    
    # Security
    secret_key: str = "your-secret-key-here-change-in-production"
    algorithm: str = "HS256"
    access_token_expire_minutes: int = 30
    refresh_token_expire_days: int = 7
    
    # Email
    smtp_host: str = "smtp.gmail.com"
    smtp_port: int = 587
    smtp_user: str = "your-email@gmail.com"
    smtp_password: str = "your-app-password"
    email_from: str = "noreply@donshare.com"
    
    # File Upload
    upload_dir: str = "uploads"
    max_file_size: int = 10485760  # 10MB
    allowed_extensions: str = "jpg,jpeg,png,gif,pdf,doc,docx"
    
    # Redis
    redis_url: str = "redis://localhost:6379"
    
    # AWS S3
    aws_access_key_id: Optional[str] = None
    aws_secret_access_key: Optional[str] = None
    aws_region: str = "us-east-1"
    aws_bucket_name: Optional[str] = None
    
    # Application
    debug: bool = True
    cors_origins: str = "http://localhost:3000,http://localhost:3001,https://donshare.com"
    api_v1_prefix: str = "/api/v1"
    project_name: str = "DonShare API"
    version: str = "1.0.0"
    
    @property
    def cors_origins_list(self) -> List[str]:
        return [origin.strip() for origin in self.cors_origins.split(",")]
    
    @property
    def allowed_extensions_list(self) -> List[str]:
        return [ext.strip() for ext in self.allowed_extensions.split(",")]
    
    class Config:
        env_file = ".env"
        case_sensitive = False


settings = Settings()