import * as path from 'path';
import { pathToFileURL } from 'url';
import { AngularMcpServerOptions } from './angular-mcp-server-options.schema';
import { DsComponentsArraySchema } from './ds-components.schema';
export async function validateDeprecatedCssClassesFile(
config: AngularMcpServerOptions,
): Promise<void> {
const relPath = config.ds.deprecatedCssClassesPath;
if (!relPath) {
// Optional parameter not provided; nothing to validate
return;
}
const deprecatedCssClassesAbsPath = path.resolve(
config.workspaceRoot,
relPath,
);
let dsComponents;
try {
const fileUrl = pathToFileURL(deprecatedCssClassesAbsPath).toString();
const module = await import(fileUrl);
// Handle both ES modules (export default) and CommonJS (module.exports)
dsComponents = module.default || module.dsComponents || module;
} catch (ctx) {
throw new Error(
`Failed to load deprecated CSS classes configuration file: ${deprecatedCssClassesAbsPath}\n\n` +
`Possible causes:\n` +
`- File does not exist\n` +
`- Invalid JavaScript syntax\n` +
`- File permission issues\n\n` +
`Original error: ${ctx}`,
);
}
// Validate the schema
const validation = DsComponentsArraySchema.safeParse(dsComponents);
if (!validation.success) {
const actualType = Array.isArray(dsComponents)
? 'array'
: typeof dsComponents;
const exportedValue =
dsComponents === undefined
? 'undefined'
: dsComponents === null
? 'null'
: JSON.stringify(dsComponents, null, 2).substring(0, 100) +
(JSON.stringify(dsComponents).length > 100 ? '...' : '');
throw new Error(
`Invalid deprecated CSS classes configuration format in: ${deprecatedCssClassesAbsPath}\n\n` +
`Expected: Array of component objects\n` +
`Received: ${actualType}\n` +
`Value: ${exportedValue}\n\n` +
`Fix options:\n` +
`1. ES Module format:\n` +
` export default [\n` +
` { componentName: 'DsButton', deprecatedCssClasses: ['btn'] }\n` +
` ];\n\n` +
`2. CommonJS format:\n` +
` module.exports = {\n` +
` dsComponents: [{ componentName: 'DsButton', deprecatedCssClasses: ['btn'] }]\n` +
` };\n\n` +
`Schema errors: ${JSON.stringify(validation.error.format(), null, 2)}`,
);
}
}
