import { McpServer } from "@modelcontextprotocol/sdk/server/mcp.js";
import { StdioServerTransport } from "@modelcontextprotocol/sdk/server/stdio.js";
import dotenv from "dotenv";
import { google } from "googleapis";
import { getOAuth2Client } from "./googleAuth.js";
import { z } from "zod";
dotenv.config();
// create the MCP server
const server = new McpServer({
name: "Pranay Calendar",
version: "1.0.0",
});
// async function getMyCalendarDataByDate(date) {
// const calendar = google.calendar({
// version: "v3",
// auth: process.env.GOOGLE_API_KEY,
// });
// tool function
async function getMyCalendarDataByDate(date) {
const auth = await getOAuth2Client();
const calendar = google.calendar({
version: "v3",
auth,
});
// Calculate the start and end of the given date (UTC)
const start = new Date(date);
start.setUTCHours(0, 0, 0, 0);
const end = new Date(start);
end.setUTCDate(end.getUTCDate() + 1);
try {
const res = await calendar.events.list({
calendarId: process.env.CALENDAR_ID,
timeMin: start.toISOString(),
timeMax: end.toISOString(),
maxResults: 10,
singleEvents: true,
orderBy: "startTime",
});
const events = res.data.items || [];
const meetings = events.map((event) => {
const start = event.start.dateTime || event.start.date;
return `${event.summary} at ${start}`;
});
if (meetings.length > 0) {
return {
meetings,
};
} else {
return {
meetings: [],
};
}
} catch (err) {
return {
error: err.message,
};
}
}
// register the tool to MCP
server.tool(
"getMyCalendarDataByDate",
{
date: z.string().refine((val) => !isNaN(Date.parse(val)), {
message: "Invalid date format. Please provide a valid date string.",
}),
},
async ({ date }) => {
return {
content: [
{
type: "text",
text: JSON.stringify(await getMyCalendarDataByDate(date)),
},
],
};
}
);
// set transfer
async function init() {
const transport = new StdioServerTransport();
await server.connect(transport);
console.log("✅ MCP Server is running and ready.");
}
// call the initialization
init();
