import { env } from 'node:process';
import eleventyPluginNavigation from '@11ty/eleventy-navigation';
import eleventyPluginWebc from '@11ty/eleventy-plugin-webc';
import Image, { eleventyImagePlugin } from '@11ty/eleventy-img';
import htmlminifier from 'html-minifier-terser';

const IMAGE_TRANSFORM_OPTS = {
  // Set global default options
  formats: ['avif', 'webp', 'auto'],
  sharpJpegOptions: { mozjpeg: true, optimiseScans: true, quality: 95 },
  sharpPngOptions: { compressionLevel: 9 },
  urlPath: '/img/',
  // Notably `outputDir` is resolved automatically
  // to the project output directory
  defaultAttributes: {
    loading: 'lazy',
    decoding: 'async',
    sizes: '(min-width: 64em) 500px, (min-width: 50em) 420px, 375px'
  }
};

const BASE = env.ELEVENTY_PRODUCTION ? 'https://ref.sebin-nyshkim.net' : 'http://localhost:8080';

// source: https://notes.jays.net/blog/11ty/
async function getOgImage(src, key) {
  const stats = await Image(src, {
    width: [1200],
    formats: ['webp'],
    urlPath: '/img/',
    outputDir: './public/img/',
    filenameFormat: (hash, src, width, format) => `${hash}-${width}.${format}`
  });

  if (key === 'url') {
    return BASE + stats.webp[0][key];
  }

  return stats.webp[0][key];
}

export default async function (eleventyConfig) {
  eleventyConfig.addWatchTarget('./src/css/');
  eleventyConfig.addPassthroughCopy('./src/fonts/');

  eleventyConfig.addCollection('sebin', (collection) =>
    collection.getFilteredByGlob('./src/sebin/*.md')
  );
  eleventyConfig.addCollection('viktor', (collection) =>
    collection.getFilteredByGlob('./src/viktor/*.md')
  );
  eleventyConfig.addCollection('jarek', (collection) =>
    collection.getFilteredByGlob('./src/jarek/*.md')
  );

  eleventyConfig.addGlobalData('base', BASE);

  eleventyConfig.addTransform('minhtml', function (content) {
    if ((this.page.outputPath || '').endsWith('.html')) {
      return htmlminifier.minify(content, {
        removeEmptyElements: true,
        collapseWhitespace: true,
        ignoreCustomFragments: [
          /<(use|path)[^>]*>(?:(?!<\/(use|path)>)[\s\S])*?<\/(use|path)>/,
          /<div[^>]*class="color-box"[^>]*>(?:(?!<\/div>)[\s\S])*?<\/div>/,
          /<nav[^>]*class="slider-nav"[^>]*>.*?<\/nav>/
        ]
      });
    }
  });

  eleventyConfig.addFilter('getOgImage', getOgImage);

  eleventyConfig.addPlugin(eleventyPluginWebc, {
    components: ['src/components/**/*.webc', 'npm:@11ty/eleventy-img/*.webc'],
    useTransform: false
  });
  eleventyConfig.addPlugin(eleventyPluginNavigation);
  eleventyConfig.addPlugin(eleventyImagePlugin, IMAGE_TRANSFORM_OPTS);
}

export const config = {
  dir: {
    input: 'src',
    output: 'public',
    layouts: 'layouts',
    includes: 'includes'
  },
  markdownTemplateEngine: 'webc'
};