import { Server } from "@modelcontextprotocol/sdk/server/index.js";
import { CallToolRequestSchema, ListToolsRequestSchema } from "@modelcontextprotocol/sdk/types.js";
import { GoCDClient } from "@/client/gocd-client.js";
import { allTools, handleToolCall } from "@/tools/index.js";
import { getCurrentToken } from "@/index.js";
import { formatJsonResponse } from "@/utils/responses.js";
import { debug } from "@/utils/debug.js";
import packageJson from "../package.json" with { type: "json" };
export function createServer(client: GoCDClient): Server {
debug.server("Creating MCP server v%s", packageJson.version);
const server = new Server({ name: "gocd-mcp", version: packageJson.version }, { capabilities: { tools: {} } });
server.setRequestHandler(ListToolsRequestSchema, async () => {
debug.tools("Listing %d available tools", allTools.length);
return { tools: allTools };
});
server.setRequestHandler(CallToolRequestSchema, async (request) => {
const { name, arguments: args } = request.params;
debug.tools("Tool call received: %s with args: %O", name, args);
const token = getCurrentToken();
if (!token) {
debug.tools("Tool call rejected: no auth token provided");
return {
...formatJsonResponse({
error: true,
code: "UNAUTHORIZED",
message: "GoCD API token is required. Please provide a Bearer token for authentication.",
}),
isError: true,
};
}
const result = await handleToolCall(client, token, name, (args as Record<string, unknown>) || {});
debug.tools("Tool call completed: %s (isError: %s)", name, result.isError ?? false);
return result;
});
return server;
}
