dynamicMapHandler.ts•2.62 kB
/*
* Copyright (C) 2025 TomTom NV
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import { logger } from "../utils/logger";
import { renderDynamicMap } from "../services/map/dynamicMapService";
import { z } from "zod";
/**
* Handler factory function for dynamic map rendering
*/
export function createDynamicMapHandler() {
return async (params: any) => {
logger.info(`🗺️ Processing dynamic map request`);
logger.info(`use_orbis: ${params?.use_orbis ?? false}`);
try {
const result = await renderDynamicMap(params);
logger.info(
`✅ Dynamic map generated successfully: ${result.width}x${result.height} (${(Buffer.from(result.base64, "base64").length / 1024).toFixed(2)} KB)`
);
return {
content: [
{
type: "image" as const,
data: result.base64,
mimeType: result.contentType,
},
],
};
} catch (error: any) {
logger.error(`❌ Dynamic map generation failed: ${error.message}`);
// Check if it's a dependency issue and provide helpful guidance
if (error.message.includes("Dynamic map dependencies not available")) {
const helpMessage = `Dynamic map dependencies are not installed.
To enable dynamic maps, install the required dependencies:
npm install @maplibre/maplibre-gl-native canvas
Note: These packages require native compilation and may need additional system dependencies.
Once installed, restart the MCP server to use the dynamic map functionality.`;
return {
content: [
{
type: "text" as const,
text: JSON.stringify(
{
error: error.message,
help: helpMessage,
},
null,
2
),
},
],
isError: true,
};
}
return {
content: [
{
type: "text" as const,
text: JSON.stringify({ error: error.message }),
},
],
isError: true,
};
}
};
}