import { McpServer } from "@modelcontextprotocol/sdk/server/mcp.js";
import { McpError, ErrorCode } from "@modelcontextprotocol/sdk/types.js";
import { TOOL_NAME, TOOL_DESCRIPTION, TOOL_PARAMS, DeleteTaskArgs } from "./deleteTaskParams.js";
import { TaskService } from "../services/TaskService.js"; // Assuming TaskService is exported from index
import { logger } from '../utils/logger.js';
import { NotFoundError } from "../utils/errors.js"; // Import custom errors
/**
* Registers the deleteTask tool with the MCP server.
*
* @param server - The McpServer instance.
* @param taskService - An instance of the TaskService.
*/
export const deleteTaskTool = (server: McpServer, taskService: TaskService): void => {
const processRequest = async (args: DeleteTaskArgs): Promise<{ content: { type: 'text', text: string }[] }> => {
logger.info(`[${TOOL_NAME}] Received request to delete ${args.task_ids.length} tasks from project ${args.project_id}`);
try {
// Call the service method to delete the tasks
const deletedCount = await taskService.deleteTasks(args.project_id, args.task_ids);
// Format the successful response
logger.info(`[${TOOL_NAME}] Successfully deleted ${deletedCount} tasks from project ${args.project_id}`);
return {
content: [{
type: "text" as const,
text: JSON.stringify({ success: true, deleted_count: deletedCount })
}]
};
} catch (error: unknown) {
// Handle potential errors according to systemPatterns.md mapping
logger.error(`[${TOOL_NAME}] Error processing request:`, error);
if (error instanceof NotFoundError) {
// Project or one/more tasks not found - Map to InvalidParams as per convention
throw new McpError(ErrorCode.InvalidParams, error.message);
} else {
// Generic internal error
const message = error instanceof Error ? error.message : 'An unknown error occurred while deleting tasks.';
throw new McpError(ErrorCode.InternalError, message);
}
}
};
// Register the tool with the server
server.tool(TOOL_NAME, TOOL_DESCRIPTION, TOOL_PARAMS.shape, processRequest); // Using .shape as this schema doesn't use .refine()
logger.info(`[${TOOL_NAME}] Tool registered successfully.`);
};
