import { McpServer } from "@modelcontextprotocol/sdk/server/mcp.js";
import { makeJasperRequest } from "../utils/api.js";
export interface Tone {
id: string;
name: string;
value: string;
}
const GET_BRAND_VOICES_ENDPOINT = "/tones";
/**
* Fetches all Jasper AI Brand Voices using the makeJasperRequest utility.
*
* @returns A promise that resolves to an array of Tone objects,
* or null if an error occurs or the response is not as expected.
*/
export async function getBrandVoices(): Promise<Tone[] | null> {
try {
// The API is expected to return an array of Tone objects directly.
const data = await makeJasperRequest<{}, { data: Tone[] }>(
GET_BRAND_VOICES_ENDPOINT,
"GET"
);
return data?.data || null;
} catch (error) {
console.error("Error in getBrandVoices resource function:", error);
return null;
}
}
export function registerGetBrandVoicesResource(server: McpServer) {
server.resource(
"jasper-brand-voices", // Resource name
"jasper://brandvoices", // Resource URI (clients will use this)
async (requestUri: URL) => {
const brandVoices = await getBrandVoices();
if (brandVoices && Array.isArray(brandVoices) && brandVoices.length > 0) {
const contents = brandVoices.map((tone) => {
const readableText = `Name: ${tone.name}\n\n${tone.value}`;
return {
uri: `jasper://brandvoices/${encodeURIComponent(tone.name)}`,
tone_id: tone.id,
text: readableText,
};
});
return { contents };
} else if (
brandVoices &&
Array.isArray(brandVoices) &&
brandVoices.length === 0
) {
return {
contents: [
{
uri: requestUri.href,
text: "No Jasper AI brand voices found.",
},
],
};
} else {
return {
contents: [
{
uri: requestUri.href,
text: `Error fetching Jasper AI brand voices or unexpected format. Please check server logs. ${brandVoices}`,
},
],
};
}
}
);
}
