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import {useFonts as defaultUseFonts} from 'expo-font'
import {isWeb} from '#/platform/detection'
import {Device, device} from '#/storage'
const FAMILIES = `-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Liberation Sans", Helvetica, Arial, sans-serif`
const factor = 0.0625 // 1 - (15/16)
const fontScaleMultipliers: Record<Device['fontScale'], number> = {
'-2': 1 - factor * 3,
'-1': 1 - factor * 2,
'0': 1 - factor * 1, // default
'1': 1,
'2': 1 + factor * 1,
}
export function computeFontScaleMultiplier(scale: Device['fontScale']) {
return fontScaleMultipliers[scale]
}
export function getFontScale() {
return device.get(['fontScale']) ?? '0'
}
export function setFontScale(fontScale: Device['fontScale']) {
device.set(['fontScale'], fontScale)
}
export function getFontFamily() {
return device.get(['fontFamily']) || 'theme'
}
export function setFontFamily(fontFamily: Device['fontFamily']) {
device.set(['fontFamily'], fontFamily)
}
/*
* IMPORTANT: This is unused. Expo statically extracts these fonts, but we load
* them manually so that we can parallelize the loading along with the JS
* bundle.
*
* See `#/alf/util/useFonts` for the actually used hooks.
*
* All used fonts MUST be configured here. Unused fonts are commented out, but
* the files are there if we need them.
*/
export function DO_NOT_USE() {
return defaultUseFonts({
// 'Inter-Thin': require('../../assets/fonts/inter/Inter-Thin.otf'),
// 'Inter-ThinItalic': require('../../assets/fonts/inter/Inter-ThinItalic.otf'),
// 'Inter-ExtraLight': require('../../assets/fonts/inter/Inter-ExtraLight.otf'),
// 'Inter-ExtraLightItalic': require('../../assets/fonts/inter/Inter-ExtraLightItalic.otf'),
// 'Inter-Light': require('../../assets/fonts/inter/Inter-Light.otf'),
// 'Inter-LightItalic': require('../../assets/fonts/inter/Inter-LightItalic.otf'),
'Inter-Regular': require('../../assets/fonts/inter/Inter-Regular.otf'),
'Inter-Italic': require('../../assets/fonts/inter/Inter-Italic.otf'),
// 'Inter-Medium': require('../../assets/fonts/inter/Inter-Medium.otf'),
// 'Inter-MediumItalic': require('../../assets/fonts/inter/Inter-MediumItalic.otf'),
'Inter-SemiBold': require('../../assets/fonts/inter/Inter-SemiBold.otf'),
'Inter-SemiBoldItalic': require('../../assets/fonts/inter/Inter-SemiBoldItalic.otf'),
// 'Inter-Bold': require('../../assets/fonts/inter/Inter-Bold.otf'),
// 'Inter-BoldItalic': require('../../assets/fonts/inter/Inter-BoldItalic.otf'),
'Inter-ExtraBold': require('../../assets/fonts/inter/Inter-ExtraBold.otf'),
'Inter-ExtraBoldItalic': require('../../assets/fonts/inter/Inter-ExtraBoldItalic.otf'),
// 'Inter-Black': require('../../assets/fonts/inter/Inter-Black.otf'),
// 'Inter-BlackItalic': require('../../assets/fonts/inter/Inter-BlackItalic.otf'),
})
}
/*
* Unused fonts are commented out, but the files are there if we need them.
*/
export function applyFonts(
style: Record<string, any>,
fontFamily: 'system' | 'theme',
) {
if (fontFamily === 'theme') {
style.fontFamily =
{
// '100': 'Inter-Thin',
// '200': 'Inter-ExtraLight',
// '300': 'Inter-Light',
'100': 'Inter-Regular',
'200': 'Inter-Regular',
'300': 'Inter-Regular',
'400': 'Inter-Regular',
'500': 'Inter-Medium',
'600': 'Inter-SemiBold',
'700': 'Inter-Bold',
'800': 'Inter-ExtraBold',
'900': 'Inter-Black',
}[style.fontWeight as string] || 'Inter-Regular'
if (style.fontStyle === 'italic') {
if (style.fontFamily === 'Inter-Regular') {
style.fontFamily = 'Inter-Italic'
} else {
style.fontFamily += 'Italic'
}
}
// fallback families only supported on web
if (isWeb) {
style.fontFamily += `, ${FAMILIES}`
}
} else {
// fallback families only supported on web
if (isWeb) {
style.fontFamily = style.fontFamily || FAMILIES
}
}
/**
* Disable contextual ligatures
* {@link https://developer.mozilla.org/en-US/docs/Web/CSS/font-variant}
*/
style.fontVariant = ['no-contextual']
}
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