import { McpServer } from "@modelcontextprotocol/sdk/server/mcp.js";
import { z } from "zod";
import { WeatherService } from "../../application/services/WeatherService.js";
export class WeatherToolsController {
constructor(
private server: McpServer,
private weatherService: WeatherService
) {
this.registerTools();
}
private registerTools(): void {
this.registerGetAlertsToolhandler();
this.registerGetForecastToolHandler();
}
private registerGetAlertsToolhandler(): void {
this.server.tool(
"get-alerts",
"Get weather alerts for a state",
{
state: z
.string()
.length(2)
.describe("Two-letter state code (e.g. CA, NY)"),
},
async ({ state }) => {
const alertsText = await this.weatherService.getAlertsForState(state);
return {
content: [
{
type: "text",
text: alertsText,
},
],
};
}
);
}
private registerGetForecastToolHandler(): void {
this.server.tool(
"get-forecast",
"Get weather forecast for a location",
{
latitude: z
.number()
.min(-90)
.max(90)
.describe("Latitude of the location"),
longitude: z
.number()
.min(-180)
.max(180)
.describe("Longitude of the location"),
},
async ({ latitude, longitude }) => {
const forecastText = await this.weatherService.getForecastForLocation(
latitude,
longitude
);
return {
content: [
{
type: "text",
text: forecastText,
},
],
};
}
);
}
}
