const purgecss = require('@fullhuman/postcss-purgecss')({
    content: [ './hugo_stats.json' ],
    defaultExtractor: (content) => {
        let els = JSON.parse(content).htmlElements;
        return els.tags.concat(els.classes, els.ids);
    }
});

module.exports = {
    plugins: [
        require('autoprefixer'),
        ...process.env.HUGO_ENVIRONMENT === 'production' ? [purgecss] : [],
        require('cssnano')({preset: ['advanced', {"discardComments": {"removeAll": true}}]}),
    ]
};