non-building checkpoint 1

backend/app/core/config.py

@@ -0,0 +1,76 @@
+"""
+Configuration settings for the application.
+Uses Pydantic settings management with environment variable support.
+"""
+
+import os
+from typing import List, Optional
+from pydantic_settings import BaseSettings
+from pydantic import AnyHttpUrl, validator
+
+
+class Settings(BaseSettings):
+    """Application settings."""
+
+    # API Settings
+    API_V1_STR: str = "/api/v1"
+    PROJECT_NAME: str = "Daily Journal Prompt Generator API"
+    VERSION: str = "1.0.0"
+    DEBUG: bool = False
+    ENVIRONMENT: str = "development"
+
+    # Server Settings
+    HOST: str = "0.0.0.0"
+    PORT: int = 8000
+
+    # CORS Settings
+    BACKEND_CORS_ORIGINS: List[AnyHttpUrl] = [
+        "http://localhost:3000",  # Frontend dev server
+        "http://localhost:80",    # Frontend production
+    ]
+
+    # API Keys
+    DEEPSEEK_API_KEY: Optional[str] = None
+    OPENAI_API_KEY: Optional[str] = None
+    API_BASE_URL: str = "https://api.deepseek.com"
+    MODEL: str = "deepseek-chat"
+
+    # Application Settings
+    MIN_PROMPT_LENGTH: int = 500
+    MAX_PROMPT_LENGTH: int = 1000
+    NUM_PROMPTS_PER_SESSION: int = 6
+    CACHED_POOL_VOLUME: int = 20
+    HISTORY_BUFFER_SIZE: int = 60
+    FEEDBACK_HISTORY_SIZE: int = 30
+
+    # File Paths (relative to project root)
+    DATA_DIR: str = "data"
+    PROMPT_TEMPLATE_PATH: str = "data/ds_prompt.txt"
+    FEEDBACK_TEMPLATE_PATH: str = "data/ds_feedback.txt"
+    SETTINGS_CONFIG_PATH: str = "data/settings.cfg"
+
+    # Data File Names (relative to DATA_DIR)
+    PROMPTS_HISTORIC_FILE: str = "prompts_historic.json"
+    PROMPTS_POOL_FILE: str = "prompts_pool.json"
+    FEEDBACK_WORDS_FILE: str = "feedback_words.json"
+    FEEDBACK_HISTORIC_FILE: str = "feedback_historic.json"
+
+    @validator("BACKEND_CORS_ORIGINS", pre=True)
+    def assemble_cors_origins(cls, v: str | List[str]) -> List[str] | str:
+        """Parse CORS origins from string or list."""
+        if isinstance(v, str) and not v.startswith("["):
+            return [i.strip() for i in v.split(",")]
+        elif isinstance(v, (list, str)):
+            return v
+        raise ValueError(v)
+
+    class Config:
+        """Pydantic configuration."""
+        env_file = ".env"
+        case_sensitive = True
+        extra = "ignore"
+
+
+# Create global settings instance
+settings = Settings()
+