/**
 * 从 node_modules 的 woff2 生成 base64 内嵌字体样式。
 *
 * 小程序 wxss 的 @font-face 不支持本地路径（渲染层报 do-not-use-local-path，
 * 图标全部变豆腐块），只能用网络 URL 或 base64；base64 免部署免域名配置，
 * 三端（H5/APK/小程序）统一可用。
 *
 * 升级 @fortawesome/fontawesome-free 后执行: node scripts/gen-fa-fonts.js
 * 产物 src/styles/fontawesome.scss 为生成文件，请勿手改。
 */
const fs = require('fs')
const path = require('path')

const fonts = [
	{
		file: 'fa-solid-900.woff2',
	 family: 'Font Awesome 7 Free',
	 weight: 900,
		style: 'normal'
	},
	{
		file: 'fa-brands-400.woff2',
	 family: 'Font Awesome 7 Brands',
	 weight: 400,
		style: 'normal'
	}
]

const webfontDir = path.join(
	__dirname,
	'../node_modules/@fortawesome/fontawesome-free/webfonts'
)
const outputPath = path.join(__dirname, '../src/styles/fontawesome.scss')

const blocks = fonts.map((f) => {
	const b64 = fs.readFileSync(path.join(webfontDir, f.file)).toString('base64')
	return `@font-face {
	font-family: '${f.family}';
	font-style: ${f.style};
	font-weight: ${f.weight};
	font-display: block;
	src: url('data:font/woff2;base64,${b64}') format('woff2');
}`
})

const content = `/* 自动生成，请勿手改：node scripts/gen-fa-fonts.js */\n\n${blocks.join('\n\n')}\n`
fs.writeFileSync(outputPath, content, 'utf8')
console.log(`Generated base64 font-face (${(content.length / 1024).toFixed(0)} KB) -> src/styles/fontawesome.scss`)