collect-font-data.ts — astro Source File

Source Code

import type { FontData, FontDataByCssVariable, FontFamilyAssets } from '../types.js';
import { renderFontWeight } from '../utils.js';

export function collectFontData(
	fontFamilyAssets: Array<
		Pick<FontFamilyAssets, 'fonts'> & { family: Pick<FontFamilyAssets['family'], 'cssVariable'> }
	>,
) {
	const fontDataByCssVariable: FontDataByCssVariable = {};

	for (const { family, fonts } of fontFamilyAssets) {
		const fontData: Array<FontData> = [];
		for (const data of fonts) {
			fontData.push({
				weight: renderFontWeight(data.weight),
				style: data.style,
				src: data.src
					.filter((src) => 'url' in src)
					.map((src) => ({
						url: src.url,
						format: src.format,
						tech: src.tech,
					})),
			});
		}

		fontDataByCssVariable[family.cssVariable] = fontData;
	}

	return fontDataByCssVariable;
}