import { McpServer } from "@modelcontextprotocol/sdk/server/mcp.js";
import { McpError, ErrorCode } from "@modelcontextprotocol/sdk/types.js";
import { TOOL_NAME, TOOL_DESCRIPTION, TOOL_PARAMS, CreateProjectArgs } from "./createProjectParams.js";
import { ProjectService } from "../services/ProjectService.js"; // Assuming ProjectService is exported from services/index.js or directly
import { logger } from '../utils/logger.js'; // Assuming logger exists
// Import custom errors if needed for specific mapping
// import { ServiceError } from "../utils/errors.js";
/**
* Registers the createProject tool with the MCP server.
*
* @param server - The McpServer instance.
* @param projectService - An instance of the ProjectService.
*/
export const createProjectTool = (server: McpServer, projectService: ProjectService): void => {
// Define the asynchronous function that handles the actual tool logic
const processRequest = async (args: CreateProjectArgs) => {
logger.info(`[${TOOL_NAME}] Received request with args:`, args);
try {
// Call the service method to create the project
const newProject = await projectService.createProject(args.projectName);
// Format the successful response according to MCP standards
const responsePayload = { project_id: newProject.project_id };
logger.info(`[${TOOL_NAME}] Project created successfully: ${newProject.project_id}`);
return {
content: [{
type: "text" as const, // Required type assertion
text: JSON.stringify(responsePayload)
}]
};
} catch (error: unknown) {
// Handle potential errors from the service layer
logger.error(`[${TOOL_NAME}] Error processing request:`, error);
// Basic error mapping: Assume internal error unless a specific known error type is caught
// TODO: Add more specific error mapping if ProjectService throws custom errors
// (e.g., catch (error instanceof ValidationError) { throw new McpError(ErrorCode.InvalidParams, ...)})
const message = error instanceof Error ? error.message : 'An unknown error occurred during project creation.';
throw new McpError(ErrorCode.InternalError, message);
}
};
// Register the tool with the server
server.tool(TOOL_NAME, TOOL_DESCRIPTION, TOOL_PARAMS, processRequest);
logger.info(`[${TOOL_NAME}] Tool registered successfully.`);
};
