Handle parameters with environmental variables only (#24)

* Switch to Typer to read the CLI parameters and options

* Rely on environmental variables only

* Fix tests

* Update README

src/mcp_server_qdrant/settings.py

@@ -1,17 +1,19 @@
-import argparse
-from typing import Any, Dict, Optional
+from typing import Optional
 
 from pydantic import Field
 from pydantic_settings import BaseSettings
 
+from mcp_server_qdrant.embeddings.types import EmbeddingProviderType
+
 
 class EmbeddingProviderSettings(BaseSettings):
     """
     Configuration for the embedding provider.
     """
 
-    provider_type: str = Field(
-        default="fastembed", validation_alias="EMBEDDING_PROVIDER"
+    provider_type: EmbeddingProviderType = Field(
+        default=EmbeddingProviderType.FASTEMBED,
+        validation_alias="EMBEDDING_PROVIDER",
     )
     model_name: str = Field(
         default="sentence-transformers/all-MiniLM-L6-v2",
@@ -36,66 +38,3 @@ class QdrantSettings(BaseSettings):
         Get the Qdrant location, either the URL or the local path.
         """
         return self.location or self.local_path
-
-
-def parse_args() -> Dict[str, Any]:
-    """
-    Parse command line arguments for the MCP server.
-
-    Returns:
-        Dict[str, Any]: Dictionary of parsed arguments
-    """
-    parser = argparse.ArgumentParser(description="Qdrant MCP Server")
-
-    # Qdrant connection options
-    connection_group = parser.add_mutually_exclusive_group()
-    connection_group.add_argument(
-        "--qdrant-url",
-        help="URL of the Qdrant server, e.g. http://localhost:6333",
-    )
-    connection_group.add_argument(
-        "--qdrant-local-path",
-        help="Path to the local Qdrant database",
-    )
-
-    # Other Qdrant settings
-    parser.add_argument(
-        "--qdrant-api-key",
-        help="API key for the Qdrant server",
-    )
-    parser.add_argument(
-        "--collection-name",
-        help="Name of the collection to use",
-    )
-
-    # Embedding settings
-    parser.add_argument(
-        "--embedding-provider",
-        help="Embedding provider to use (currently only 'fastembed' is supported)",
-    )
-    parser.add_argument(
-        "--embedding-model",
-        help="Name of the embedding model to use",
-    )
-
-    args = parser.parse_args()
-
-    # Convert to dictionary and filter out None values
-    args_dict = {k: v for k, v in vars(args).items() if v is not None}
-
-    # Convert argument names to environment variable format
-    env_vars = {}
-    if "qdrant_url" in args_dict:
-        env_vars["QDRANT_URL"] = args_dict["qdrant_url"]
-    if "qdrant_api_key" in args_dict:
-        env_vars["QDRANT_API_KEY"] = args_dict["qdrant_api_key"]
-    if "collection_name" in args_dict:
-        env_vars["COLLECTION_NAME"] = args_dict["collection_name"]
-    if "embedding_model" in args_dict:
-        env_vars["EMBEDDING_MODEL"] = args_dict["embedding_model"]
-    if "embedding_provider" in args_dict:
-        env_vars["EMBEDDING_PROVIDER"] = args_dict["embedding_provider"]
-    if "qdrant_local_path" in args_dict:
-        env_vars["QDRANT_LOCAL_PATH"] = args_dict["qdrant_local_path"]
-
-    return env_vars