aureooms/rejuvenate

import * as pkg from '../lib/pkg.js';
import update from '../lib/update.js';

const removeScripts = (options) =>
    subroutine({scripts: [], deps: [], files: [], config: [], ...options});

export default removeScripts;

function subroutine({scripts, deps, files, config}) {
    return {
        async postcondition({readPkg, exists, assert}) {
            const pkgjson = await readPkg();
            const devDeps = pkg.devDeps(pkgjson);
            for (const dep of deps) assert(!devDeps.has(dep));
            for (const key of scripts) {
                assert(pkgjson.scripts[key] === undefined);
            }

            for (const key of config) {
                assert(pkgjson[key] === undefined);
            }

            for (const filename of files) {
                // eslint-disable-next-line no-await-in-loop
                assert(!(await exists(filename)));
            }
        },

        async precondition({readPkg, exists, assert}) {
            const pkgjson = await readPkg();
            const devDeps = pkg.devDeps(pkgjson);
            for (const dep of deps) assert(devDeps.has(dep));
            for (const key of scripts) {
                assert(pkgjson.scripts[key] !== undefined);
            }

            for (const key of config) {
                assert(pkgjson[key] !== undefined);
            }

            for (const filename of files) {
                // eslint-disable-next-line no-await-in-loop
                assert(await exists(filename));
            }
        },

        async apply({readPkg, writePkg, remove, fixConfig, install}) {
            await update({
                read: readPkg,
                write: writePkg,
                edit(pkgjson) {
                    for (const dep of deps) delete pkgjson.devDependencies[dep];
                    for (const key of scripts) delete pkgjson.scripts[key];
                    for (const key of config) delete pkgjson[key];
                    return pkgjson;
                },
            });
            await remove(files);
            await fixConfig();
            await install();
        },
    };
}