import { McpServer } from "@modelcontextprotocol/sdk/server/mcp.js";
import { messagingApi } from "@line/bot-sdk";
import {
createErrorResponse,
createSuccessResponse,
} from "../common/response.js";
import { AbstractTool } from "./AbstractTool.js";
import { textMessageSchema } from "../common/schema/textMessage.js";
export default class BroadcastTextMessage extends AbstractTool {
private client: messagingApi.MessagingApiClient;
constructor(client: messagingApi.MessagingApiClient) {
super();
this.client = client;
}
register(server: McpServer) {
server.tool(
"broadcast_text_message",
"Broadcast a simple text message via LINE to all users who have followed your LINE Official Account. Use this for sending " +
"plain text messages without formatting. Please be aware that this message will be sent to all users.",
{
message: textMessageSchema,
},
async ({ message }) => {
try {
const response = await this.client.broadcast({
messages: [message as unknown as messagingApi.Message],
});
return createSuccessResponse(response);
} catch (error) {
return createErrorResponse(
`Failed to broadcast message: ${error.message}`,
);
}
},
);
}
}