M365 Calendar MCP Server

#!/usr/bin/env node

import { AuthManager, AuthConfig } from "./auth.js";
import { CalendarMcpServer } from "./server.js";

async function main(): Promise<void> {
  const clientId = process.env.M365_CLIENT_ID;
  const tenantId = process.env.M365_TENANT_ID;

  if (!clientId) {
    console.error(
      "Error: M365_CLIENT_ID environment variable is required.\n" +
        "Set it to your Azure AD app registration client ID.\n" +
        "See README.md for setup instructions."
    );
    process.exit(1);
  }

  const config: AuthConfig = {
    clientId,
    tenantId,
  };

  const auth = new AuthManager(config);
  const args = process.argv.slice(2);

  if (args.includes("--login")) {
    await auth.login();
    return;
  }

  if (args.includes("--logout")) {
    await auth.logout();
    return;
  }

  if (args.includes("--check-auth")) {
    const isAuth = await auth.isAuthenticated();
    console.error(isAuth ? "Authenticated" : "Not authenticated");
    process.exit(isAuth ? 0 : 1);
  }

  // Verify we can authenticate before starting the server
  const isAuth = await auth.isAuthenticated();
  if (!isAuth) {
    console.error(
      "Not authenticated. Run with --login flag first, or set up credentials.\n" +
        "Usage: m365calendar-mcp --login"
    );
    process.exit(1);
  }

  const server = new CalendarMcpServer(auth);
  await server.start();
}

main().catch((error) => {
  console.error("Fatal error:", error);
  process.exit(1);
});