/**
 * This is an advanced example for creating icon bundles for Iconify SVG Framework.
 *
 * It creates a bundle from:
 * - All SVG files in a directory.
 * - Custom JSON files.
 * - Iconify icon sets.
 * - SVG framework.
 *
 * This example uses Iconify Tools to import and clean up icons.
 * For Iconify Tools documentation visit https://docs.iconify.design/tools/tools2/
 */
import { promises as fs } from 'node:fs';
import { dirname, join } from 'node:path';
// Installation: npm install --save-dev @iconify/tools @iconify/utils @iconify/json @iconify/iconify
import { cleanupSVG, importDirectory, isEmptyColor, parseColors, runSVGO } from '@iconify/tools';
import { getIcons, getIconsCSS, stringToIcon } from '@iconify/utils';
const sources = {
    svg: [
    // {
    //   dir: 'resources/images/iconify-svg',
    //   monotone: true,
    //   prefix: 'custom',
    // },
    // {
    //   dir: 'emojis',
    //   monotone: false,
    //   prefix: 'emoji',
    // },
    ],
    icons: [
    // 'mdi:home',
    // 'mdi:account',
    // 'mdi:login',
    // 'mdi:logout',
    // 'octicon:book-24',
    // 'octicon:code-square-24',
    ],
    json: [
        // Custom JSON file
        // 'json/gg.json',
        // Iconify JSON file (@iconify/json is a package name, /json/ is directory where files are, then filename)
        require.resolve('@iconify-json/ri/icons.json'),
        {
            filename: require.resolve('@iconify-json/mdi/icons.json'),
            icons: [
                'language-typescript',
                'language-javascript',
            ],
        },
        {
            filename: require.resolve('@iconify-json/bxl/icons.json'),
            icons: [
                'facebook',
                'twitter',
                'github',
                'google',
                'linkedin',
            ],
        },
        // Custom file with only few icons
        // {
        //   filename: require.resolve('@iconify-json/line-md/icons.json'),
        //   icons: [
        //     'home-twotone-alt',
        //     'github',
        //     'document-list',
        //     'document-code',
        //     'image-twotone',
        //   ],
        // },
    ],
};
// File to save bundle to
const target = join(__dirname, 'icons.css');
(async function () {
    // Create directory for output if missing
    const dir = dirname(target);
    try {
        await fs.mkdir(dir, {
            recursive: true,
        });
    }
    catch (err) {
        //
    }
    const allIcons = [];
    /**
     * Convert sources.icons to sources.json
     */
    if (sources.icons) {
        const sourcesJSON = sources.json ? sources.json : (sources.json = []);
        // Sort icons by prefix
        const organizedList = organizeIconsList(sources.icons);
        for (const prefix in organizedList) {
            const filename = require.resolve(`@iconify/json/json/${prefix}.json`);
            sourcesJSON.push({
                filename,
                icons: organizedList[prefix],
            });
        }
    }
    /**
     * Bundle JSON files and collect icons
     */
    if (sources.json) {
        for (let i = 0; i < sources.json.length; i++) {
            const item = sources.json[i];
            // Load icon set
            const filename = typeof item === 'string' ? item : item.filename;
            const content = JSON.parse(await fs.readFile(filename, 'utf8'));
            // Filter icons
            if (typeof item !== 'string' && item.icons?.length) {
                const filteredContent = getIcons(content, item.icons);
                if (!filteredContent)
                    throw new Error(`Cannot find required icons in ${filename}`);
                // Collect filtered icons
                allIcons.push(filteredContent);
            }
            else {
                // Collect all icons from the JSON file
                allIcons.push(content);
            }
        }
    }
    /**
     * Bundle custom SVG icons and collect icons
     */
    if (sources.svg) {
        for (let i = 0; i < sources.svg.length; i++) {
            const source = sources.svg[i];
            // Import icons
            const iconSet = await importDirectory(source.dir, {
                prefix: source.prefix,
            });
            // Validate, clean up, fix palette, etc.
            await iconSet.forEach(async (name, type) => {
                if (type !== 'icon')
                    return;
                // Get SVG instance for parsing
                const svg = iconSet.toSVG(name);
                if (!svg) {
                    // Invalid icon
                    iconSet.remove(name);
                    return;
                }
                // Clean up and optimise icons
                try {
                    // Clean up icon code
                    await cleanupSVG(svg);
                    if (source.monotone) {
                        // Replace color with currentColor, add if missing
                        // If icon is not monotone, remove this code
                        await parseColors(svg, {
                            defaultColor: 'currentColor',
                            callback: (attr, colorStr, color) => {
                                return !color || isEmptyColor(color) ? colorStr : 'currentColor';
                            },
                        });
                    }
                    // Optimise
                    await runSVGO(svg);
                }
                catch (err) {
                    // Invalid icon
                    console.error(`Error parsing ${name} from ${source.dir}:`, err);
                    iconSet.remove(name);
                    return;
                }
                // Update icon from SVG instance
                iconSet.fromSVG(name, svg);
            });
            // Collect the SVG icon
            allIcons.push(iconSet.export());
        }
    }
    // Generate CSS from collected icons
    const cssContent = allIcons
        .map(iconSet => getIconsCSS(iconSet, Object.keys(iconSet.icons), { iconSelector: '.{prefix}-{name}' }))
        .join('\n');
    // Save the CSS to a file
    await fs.writeFile(target, cssContent, 'utf8');
    console.log(`Saved CSS to ${target}!`);
})().catch(err => {
    console.error(err);
});
/**
 * Sort icon names by prefix
 */
function organizeIconsList(icons) {
    const sorted = Object.create(null);
    icons.forEach(icon => {
        const item = stringToIcon(icon);
        if (!item)
            return;
        const prefix = item.prefix;
        const prefixList = sorted[prefix] ? sorted[prefix] : (sorted[prefix] = []);
        const name = item.name;
        if (!prefixList.includes(name))
            prefixList.push(name);
    });
    return sorted;
}