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app/config.py

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+# app/config.py (рабочая версия)
+from typing import List, Optional
+from pydantic_settings import BaseSettings
+from pydantic import Field, field_validator
+import json
+
+
+class Settings(BaseSettings):
+    """Настройки приложения"""
+
+    # App
+    APP_NAME: str = "FormBuilder"
+    APP_ENV: str = Field(default="development", pattern="^(development|staging|production)$")
+    DEBUG: bool = True
+    SECRET_KEY: str = "your-secret-key-change-in-production-min-32-chars"
+
+    # Database
+    DB_TYPE: str = "postgresql"
+    DB_HOST: str = "localhost"
+    DB_PORT: int = 5432
+    DB_USER: str = "postgres"
+    DB_PASSWORD: str = "postgres"
+    DB_NAME: str = "formbuilder"
+
+    # Database Pool
+    DB_POOL_SIZE: int = 20
+    DB_MAX_OVERFLOW: int = 40
+    DB_POOL_TIMEOUT: int = 30
+    DB_POOL_PRE_PING: bool = True
+
+    # Redis
+    REDIS_URL: Optional[str] = None
+
+    # CORS
+    BACKEND_CORS_ORIGINS: List[str] = ["http://localhost:3000", "http://localhost:8000"]
+
+    # Security
+    JWT_SECRET_KEY: Optional[str] = None
+    JWT_ALGORITHM: str = "HS256"
+    ACCESS_TOKEN_EXPIRE_MINUTES: int = 30
+
+    # Email
+    SMTP_HOST: Optional[str] = None
+    SMTP_PORT: Optional[int] = None
+    SMTP_USER: Optional[str] = None
+    SMTP_PASSWORD: Optional[str] = None
+    SMTP_USE_TLS: bool = True
+
+    # File Upload
+    MAX_UPLOAD_SIZE_MB: int = 10
+    ALLOWED_UPLOAD_EXTENSIONS: List[str] = [".jpg", ".jpeg", ".png", ".pdf", ".doc", ".docx"]
+    UPLOAD_PATH: str = "uploads"
+
+    # Logging
+    LOG_LEVEL: str = "INFO"
+
+    @property
+    def DATABASE_URL(self) -> str:
+        """Формирует URL для подключения к БД"""
+        return f"postgresql://{self.DB_USER}:{self.DB_PASSWORD}@{self.DB_HOST}:{self.DB_PORT}/{self.DB_NAME}"
+
+    @field_validator("BACKEND_CORS_ORIGINS", mode="before")
+    @classmethod
+    def parse_cors_origins(cls, v):
+        """Парсинг CORS origins"""
+        if isinstance(v, str):
+            try:
+                return json.loads(v)
+            except:
+                return [origin.strip() for origin in v.split(",")]
+        return v
+
+    @field_validator("ALLOWED_UPLOAD_EXTENSIONS", mode="before")
+    @classmethod
+    def parse_extensions(cls, v):
+        """Парсинг расширений файлов"""
+        if isinstance(v, str):
+            try:
+                return json.loads(v)
+            except:
+                return [ext.strip() for ext in v.split(",")]
+        return v
+
+    @field_validator("SECRET_KEY")
+    @classmethod
+    def validate_secret_key(cls, v, info):
+        """Валидация секретного ключа в production"""
+        # Получаем APP_ENV из данных, которые уже были обработаны
+        app_env = info.data.get('APP_ENV', 'development')
+        if app_env == "production" and (not v or len(v) < 32):
+            raise ValueError("SECRET_KEY must be at least 32 characters in production")
+        return v
+
+    class Config:
+        env_file = ".env"
+        env_file_encoding = "utf-8"
+        case_sensitive = True
+        extra = "ignore"  # Игнорируем лишние переменные окружения
+
+
+# Создаем глобальный экземпляр настроек
+settings = Settings()