update

Backend/src/config/settings.py

@@ -0,0 +1,119 @@
+"""
+Enterprise-grade configuration management using Pydantic Settings
+"""
+from pydantic_settings import BaseSettings, SettingsConfigDict
+from pydantic import Field
+from typing import List
+import os
+
+
+class Settings(BaseSettings):
+    """Application settings with environment variable support"""
+    
+    model_config = SettingsConfigDict(
+        env_file=".env",
+        env_file_encoding="utf-8",
+        case_sensitive=False,
+        extra="ignore"
+    )
+    
+    # Application
+    APP_NAME: str = Field(default="Hotel Booking API", description="Application name")
+    APP_VERSION: str = Field(default="1.0.0", description="Application version")
+    ENVIRONMENT: str = Field(default="development", description="Environment: development, staging, production")
+    DEBUG: bool = Field(default=False, description="Debug mode")
+    API_V1_PREFIX: str = Field(default="/api/v1", description="API v1 prefix")
+    
+    # Server
+    HOST: str = Field(default="0.0.0.0", description="Server host")
+    PORT: int = Field(default=8000, description="Server port")
+    
+    # Database
+    DB_USER: str = Field(default="root", description="Database user")
+    DB_PASS: str = Field(default="", description="Database password")
+    DB_NAME: str = Field(default="hotel_db", description="Database name")
+    DB_HOST: str = Field(default="localhost", description="Database host")
+    DB_PORT: str = Field(default="3306", description="Database port")
+    
+    # Security
+    JWT_SECRET: str = Field(default="dev-secret-key-change-in-production-12345", description="JWT secret key")
+    JWT_ALGORITHM: str = Field(default="HS256", description="JWT algorithm")
+    JWT_ACCESS_TOKEN_EXPIRE_MINUTES: int = Field(default=30, description="JWT access token expiration in minutes")
+    JWT_REFRESH_TOKEN_EXPIRE_DAYS: int = Field(default=7, description="JWT refresh token expiration in days")
+    
+    # CORS
+    CLIENT_URL: str = Field(default="http://localhost:5173", description="Frontend client URL")
+    CORS_ORIGINS: List[str] = Field(
+        default_factory=lambda: [
+            "http://localhost:5173",
+            "http://localhost:3000",
+            "http://127.0.0.1:5173"
+        ],
+        description="Allowed CORS origins"
+    )
+    
+    # Rate Limiting
+    RATE_LIMIT_ENABLED: bool = Field(default=True, description="Enable rate limiting")
+    RATE_LIMIT_PER_MINUTE: int = Field(default=60, description="Requests per minute per IP")
+    
+    # Logging
+    LOG_LEVEL: str = Field(default="INFO", description="Log level: DEBUG, INFO, WARNING, ERROR, CRITICAL")
+    LOG_FILE: str = Field(default="logs/app.log", description="Log file path")
+    LOG_MAX_BYTES: int = Field(default=10485760, description="Max log file size (10MB)")
+    LOG_BACKUP_COUNT: int = Field(default=5, description="Number of backup log files")
+    
+    # Email
+    SMTP_HOST: str = Field(default="smtp.gmail.com", description="SMTP host")
+    SMTP_PORT: int = Field(default=587, description="SMTP port")
+    SMTP_USER: str = Field(default="", description="SMTP username")
+    SMTP_PASSWORD: str = Field(default="", description="SMTP password")
+    SMTP_FROM_EMAIL: str = Field(default="", description="From email address")
+    SMTP_FROM_NAME: str = Field(default="Hotel Booking", description="From name")
+    
+    # File Upload
+    UPLOAD_DIR: str = Field(default="uploads", description="Upload directory")
+    MAX_UPLOAD_SIZE: int = Field(default=5242880, description="Max upload size in bytes (5MB)")
+    ALLOWED_EXTENSIONS: List[str] = Field(
+        default_factory=lambda: ["jpg", "jpeg", "png", "gif", "webp"],
+        description="Allowed file extensions"
+    )
+    
+    # Redis (for caching)
+    REDIS_ENABLED: bool = Field(default=False, description="Enable Redis caching")
+    REDIS_HOST: str = Field(default="localhost", description="Redis host")
+    REDIS_PORT: int = Field(default=6379, description="Redis port")
+    REDIS_DB: int = Field(default=0, description="Redis database number")
+    REDIS_PASSWORD: str = Field(default="", description="Redis password")
+    
+    # Request Timeout
+    REQUEST_TIMEOUT: int = Field(default=30, description="Request timeout in seconds")
+    
+    # Health Check
+    HEALTH_CHECK_INTERVAL: int = Field(default=30, description="Health check interval in seconds")
+    
+    @property
+    def database_url(self) -> str:
+        """Construct database URL"""
+        return f"mysql+pymysql://{self.DB_USER}:{self.DB_PASS}@{self.DB_HOST}:{self.DB_PORT}/{self.DB_NAME}"
+    
+    @property
+    def is_production(self) -> bool:
+        """Check if running in production"""
+        return self.ENVIRONMENT.lower() == "production"
+    
+    @property
+    def is_development(self) -> bool:
+        """Check if running in development"""
+        return self.ENVIRONMENT.lower() == "development"
+    
+    @property
+    def redis_url(self) -> str:
+        """Construct Redis URL"""
+        if self.REDIS_PASSWORD:
+            return f"redis://:{self.REDIS_PASSWORD}@{self.REDIS_HOST}:{self.REDIS_PORT}/{self.REDIS_DB}"
+        return f"redis://{self.REDIS_HOST}:{self.REDIS_PORT}/{self.REDIS_DB}"
+
+
+# Global settings instance
+settings = Settings()
+