import { McpServer } from '@modelcontextprotocol/sdk/server/mcp.js';
import * as o from 'olca-ipc';
import { z } from 'zod';
const input_schema = {
serverUrl: z.string().default('http://localhost:8080').describe('OpenLCA IPC server URL'),
};
async function listProductSystems({
serverUrl = 'http://localhost:8080',
}: {
serverUrl?: string;
}): Promise<string> {
const client = o.IpcClient.on(serverUrl);
const productSystems = await client.getDescriptors(o.RefType.ProductSystem);
if (productSystems.length === 0) {
throw new Error('No product systems found');
}
// console.log(productSystems)
const resultsObj = productSystems.map((sys) => {
// Create full object
const result: Record<string, any> = {
id: sys.id,
category: sys.category,
description: sys.description,
flowType: sys.flowType,
location: sys.location,
name: sys.name,
processType: sys.processType,
refUnit: sys.refUnit,
refType: sys.refType,
};
// Remove undefined properties
Object.keys(result).forEach((key) => {
if (result[key] === undefined) {
delete result[key];
}
});
return result;
});
return JSON.stringify(resultsObj);
}
export function regOpenLcaListProductSystemsTool(server: McpServer) {
server.tool(
'OpenLCA_List_Product_Systems_Tool',
'List all product systems using OpenLCA.',
input_schema,
async ({ serverUrl }) => {
const result = await listProductSystems({
serverUrl: serverUrl,
});
return {
content: [
{
type: 'text',
text: result,
},
],
};
},
);
}
