import fs from 'fs';
import path from 'path';
import { analyzeCliCommand } from "web-component-analyzer/lib/cjs/cli";
import colors from 'colors';

// Generate custom-elements.json
// TODO: pass in output dir as a parameter
// TODO: package.json
export async function buildCustomElementsJson(lwcConfig:any) {
    console.log(colors.blue(`\tbuild custom elements JSON...`));

    const moduleDirs = lwcConfig.modules
        .filter((entry: { dir: string }) => entry.dir)
        .map((entry: { dir: string; }) => {
            const out = path.resolve(process.cwd(), entry.dir);
            console.log(colors.blue('\t\tfrom: ') + out );
            return out;
        });

    const dest = path.resolve(process.cwd(), ".storybook/assets/custom-elements.json");
    const result = await analyzeCliCommand({ glob: moduleDirs, format: "json", outFile: dest, silent: true });

    console.log(colors.blue('\t\tto: ') + dest);
}