import type { McpServer } from "@modelcontextprotocol/sdk/server/mcp.js";
import type { CalDAVClient, RecurrenceRule } from "ts-caldav";
import { z } from "zod";
type CreateEventInput = {
summary: string;
start: string;
end: string;
calendarUrl: string;
recurrenceRule?: {
freq?: "DAILY" | "WEEKLY" | "MONTHLY" | "YEARLY";
interval?: number;
count?: number;
until?: string;
byday?: string[];
bymonthday?: number[];
bymonth?: number[];
};
};
const recurrenceRuleSchema = z.object({
freq: z.enum(["DAILY", "WEEKLY", "MONTHLY", "YEARLY"]).optional(),
interval: z.number().optional(),
count: z.number().optional(),
until: z.string().datetime().optional(), // ISO 8601 string
byday: z.array(z.string()).optional(), // e.g. ["MO", "TU"]
bymonthday: z.array(z.number()).optional(),
bymonth: z.array(z.number()).optional(),
});
export function registerCreateEvent(client: CalDAVClient, server: McpServer) {
server.registerTool(
"create-event",
{
description: "Creates an event in the calendar specified by its URL",
inputSchema: {
summary: z.string(),
start: z.string().datetime(),
end: z.string().datetime(),
calendarUrl: z.string(),
recurrenceRule: recurrenceRuleSchema.optional(),
},
},
async (args: CreateEventInput) => {
const { calendarUrl, summary, start, end, recurrenceRule } = args;
const event = await client.createEvent(calendarUrl, {
summary: summary,
start: new Date(start),
end: new Date(end),
recurrenceRule: recurrenceRule as RecurrenceRule,
});
return {
content: [{ type: "text", text: event.uid }],
};
},
);
}
