@cyanheads/toolkit-mcp-server
Version:
MCP server providing system, network, geolocation, generator, datetime, and security tools
113 lines (112 loc) • 4.55 kB
JavaScript
import { DateTime } from 'luxon';
export const dateTimeTools = {
convertTimezone: {
name: 'convertTimezone',
description: 'Convert date/time between timezones using Luxon',
inputSchema: {
type: 'object',
properties: {
date: {
type: 'string',
description: 'Date/time string to convert (ISO 8601 format)'
},
fromTZ: {
type: 'string',
description: 'Source timezone (IANA timezone identifier)'
},
toTZ: {
type: 'string',
description: 'Target timezone (IANA timezone identifier)'
},
format: {
type: 'string',
description: 'Output format (full, date, time, iso)',
enum: ['full', 'date', 'time', 'iso'],
default: 'full'
}
},
required: ['date', 'fromTZ', 'toTZ']
},
handler: async ({ date, fromTZ, toTZ, format = 'full' }) => {
try {
const dt = DateTime.fromISO(date, { zone: fromTZ });
if (!dt.isValid) {
throw new Error(`Invalid date format or timezone: ${dt.invalidReason}`);
}
const converted = dt.setZone(toTZ);
if (!converted.isValid) {
throw new Error(`Invalid target timezone: ${converted.invalidReason}`);
}
let formattedOriginal;
let formattedConverted;
switch (format) {
case 'full':
formattedOriginal = dt.toLocaleString(DateTime.DATETIME_FULL);
formattedConverted = converted.toLocaleString(DateTime.DATETIME_FULL);
break;
case 'date':
formattedOriginal = dt.toLocaleString(DateTime.DATE_FULL);
formattedConverted = converted.toLocaleString(DateTime.DATE_FULL);
break;
case 'time':
formattedOriginal = dt.toLocaleString(DateTime.TIME_WITH_SECONDS);
formattedConverted = converted.toLocaleString(DateTime.TIME_WITH_SECONDS);
break;
case 'iso':
formattedOriginal = dt.toISO();
formattedConverted = converted.toISO();
break;
default:
throw new Error(`Unsupported format: ${format}`);
}
const result = {
originalDate: formattedOriginal,
convertedDate: formattedConverted,
fromTimezone: fromTZ,
toTimezone: toTZ
};
return {
content: [{
type: 'text',
text: JSON.stringify(result, null, 2)
}]
};
}
catch (error) {
throw new Error(`Timezone conversion failed: ${error instanceof Error ? error.message : 'Unknown error'}`);
}
}
},
listTimezones: {
name: 'listTimezones',
description: 'List all available IANA timezones',
inputSchema: {
type: 'object',
properties: {
region: {
type: 'string',
description: 'Filter timezones by region (e.g., America, Europe)',
optional: true
}
}
},
handler: async ({ region }) => {
try {
// Get list of unique timezone names from Luxon
const zones = Array.from(new Set(Intl.supportedValuesOf('timeZone')));
const filteredZones = region
? zones.filter((zone) => zone.startsWith(region))
: zones;
return {
content: [{
type: 'text',
text: JSON.stringify(zones, null, 2)
}]
};
}
catch (error) {
throw new Error(`Failed to list timezones: ${error instanceof Error ? error.message : 'Unknown error'}`);
}
}
}
};