#! /usr/bin/env node

import fs from 'fs/promises';

import { program } from 'commander';

import serializeMDX from './actions/serialize-mdx.mjs';

import deserializeHTML from './actions/deserialize-html.mjs';

const cantOpenPath = (path) => () => {

console.error(`😵 unable to open path ${path}`);

process.exit(1);

};

const assertPathIsNotEmpty = (path) => {

if (path == null || path === '') {

program.help({ error: true });

}

};

const serializeMdxToHtml = async (path, outputPath) => {

const mdx = await fs.readFile(path).catch(cantOpenPath(path));

const html = await serializeMDX(mdx).catch((err) => {

console.error('❌ error serializing MDX');

console.error(err);

process.exit(1);

});

if (outputPath) {

fs.writeFile(outputPath, html, 'utf-8');

} else {

console.log(html);

}

};

const deserializeHtmlToMdx = async (path, outputPath) => {

const html = await fs.readFile(path, 'utf-8').catch(cantOpenPath(path));

const mdx = await deserializeHTML(html).catch((err) => {

console.error('❌ error deserializing HTML');

console.error(err);

process.exit(1);

});

if (outputPath) {

fs.writeFile(outputPath, mdx, 'utf-8');

} else {

console.log(mdx);

}

};

const serde = program

.name('serde')

.description('manually serialize or deserialize an MDX or HTML file');

serde

.command('serialize')

.description('serialize an MDX file to HTML')

.option('-o, --output [path]', 'write to given path instead of stdout')

.argument('[path]')

.action((path, options) => {

assertPathIsNotEmpty(path);

serializeMdxToHtml(path, options.output);

});

serde

.command('deserialize')

.description('deserialize an HTML file to MDX')

.option('-o, --output [path]', 'write to given path instead of stdout')

.argument('[path]')

.action((path, options) => {

assertPathIsNotEmpty(path);

deserializeHtmlToMdx(path, options.output);

});

program.parse();