Revise settings configuration with LLMProvider

app/config/settings.py

@@ -1,45 +1,28 @@
 from pydantic_settings import BaseSettings
-from functools import lru_cache
-from pathlib import Path
 from typing import Optional
+from enum import Enum
 
-class Settings(BaseSettings):
-    """
-    Application Configuration.
-    Loads settings from environment variables with type safety.
-    """
-    # App Info
-    app_name: str = "Startup Idea Validator Agent"
-    app_env: str = "development"
-    debug: bool = True
+class LLMProvider(str, Enum):
+    AUTO = "auto"
+    OPENAI = "openai"
+    ANTHROPIC = "anthropic"
 
-    # LLM Configuration
+class Settings(BaseSettings):
+    # App
+    app_name: str = "startup-idea-validator-agent"
+    app_version: str = "0.1.0"
+    debug: bool = False
+
+    # LLM
+    llm_provider: LLMProvider = LLMProvider.AUTO
     openai_api_key: Optional[str] = None
     anthropic_api_key: Optional[str] = None
-
-    # Vector DB Configuration
-    vector_db_path: str = "./data/chroma_db"
-
-    # Server Configuration
-    host: str = "127.0.0.1"
-    port: int = 8000
-
-    # Feature Flags
-    enable_web_search: bool = False
-    enable_competitor_analysis: bool = False
-
+
+    # Paths (Week 4+)
+    chroma_path: str = "./data/chroma"
+
     class Config:
         env_file = ".env"
-        env_file_encoding = "utf-8"
-        case_sensitive = True
-
-@lru_cache()
-def get_settings() -> Settings:
-    """
-    Returns a cached instance of the settings.
-    Ensures settings are loaded only once per process.
-    """
-    return Settings()
+        case_sensitive = False
 
-# Create a global instance for easy import in main.py
-settings = get_settings()
+settings = Settings()