import { z } from 'zod';
import { Tool } from '@modelcontextprotocol/sdk/types.js';
import { nasaService } from '../services/nasa.service.js';
import { logger } from '../utils/logger.js';
const ApodSchema = z.object({
date: z
.string()
.optional()
.describe('Date in YYYY-MM-DD format. Defaults to today.'),
});
export const apodTool = {
definition: {
name: 'nasa_apod',
description: 'Get NASA Astronomy Picture of the Day with detailed explanation',
inputSchema: {
type: 'object',
properties: {
date: {
type: 'string',
description: 'Date in YYYY-MM-DD format. Defaults to today.',
},
},
},
} as Tool,
handler: async (args: Record<string, unknown>): Promise<string> => {
try {
const params = ApodSchema.parse(args);
logger.debug('Fetching APOD', params);
const apod = await nasaService.getApod(params.date);
let result = `# ${apod.title}\n\n`;
result += `**Date:** ${apod.date}\n\n`;
if (apod.copyright) {
result += `**Copyright:** ${apod.copyright}\n\n`;
}
result += `## Explanation\n\n${apod.explanation}\n\n`;
if (apod.media_type === 'image') {
result += `## Image\n\n`;
result += `- **Standard Resolution:** ${apod.url}\n`;
if (apod.hdurl) {
result += `- **High Resolution:** ${apod.hdurl}\n`;
}
} else if (apod.media_type === 'video') {
result += `## Video\n\n`;
result += `**Video URL:** ${apod.url}\n`;
}
return result;
} catch (error) {
logger.error('APOD tool error:', error);
throw new Error(`Failed to fetch APOD: ${error}`);
}
},
};
