hubble-mcp-tool/dist/tools/downloadChartTool.js

MCP server for Hubble

import { z } from "zod";
import { TOOL_NAMES } from "../config/constants.js";
import { ChartService } from "../services/chartService.js";
import { downloadChartArgsSchema } from "../types/index.js";
import { ErrorHandler } from "../utils/errors.js";
/**
 * Tool implementation for downloading charts
 */
export class DownloadChartTool {
    /**
     * Gets the tool definition for the MCP server
     */
    getDefinition() {
        return {
            name: TOOL_NAMES.DOWNLOAD_CHART,
            description: "Download a chart image to a local file",
            inputSchema: {
                type: "object",
                properties: {
                    config: {
                        type: "object",
                        description: "Chart configuration object",
                    },
                    outputPath: {
                        type: "string",
                        description: "Path where the chart image should be saved",
                    },
                },
                required: ["config", "outputPath"],
            },
        };
    }
    /**
     * Executes the download_chart tool
     */
    async execute(args) {
        try {
            if (!args) {
                throw ErrorHandler.createInvalidParamsError("Arguments are required for download_chart");
            }
            // Validate and parse the arguments with Zod
            const validatedArgs = downloadChartArgsSchema.parse(args);
            const chartConfig = ChartService.generateChartConfig(validatedArgs.config);
            const outputPath = await ChartService.downloadChart(chartConfig, validatedArgs.outputPath);
            return {
                content: [
                    {
                        type: "text",
                        text: `Chart saved to ${outputPath}`,
                    },
                ],
            };
        }
        catch (error) {
            if (error instanceof z.ZodError) {
                throw ErrorHandler.handleZodError(error);
            }
            throw ErrorHandler.handleError(error, "Failed to download chart");
        }
    }
}