import * as tinycolor from 'tinycolor2'; const lightTheme = require('../../../theme/light'); const darkTheme = require('../../../theme/dark'); type Theme = { meta: { id: string; name: string; inherit: string; }; } & { [key: string]: string; }; export default function(theme: Theme) { if (theme.meta.inherit) { const inherit = [lightTheme, darkTheme].find(x => x.meta.id == theme.meta.inherit); theme = Object.assign({}, inherit, theme); } const props = compile(theme); Object.entries(props).forEach(([k, v]) => { if (k == 'meta') return; document.documentElement.style.setProperty(`--${k}`, v.toString()); }); localStorage.setItem('theme', JSON.stringify(props)); } function compile(theme: Theme): { [key: string]: string } { function getColor(code: string): tinycolor.Instance { // ref if (code[0] == '@') { return getColor(theme[code.substr(1)]); } return tinycolor(code); } const props = {}; Object.entries(theme).forEach(([k, v]) => { if (k == 'meta') return; const c = getColor(v); props[k] = genValue(c); props[`${k}-r`] = c.toRgb().r; props[`${k}-g`] = c.toRgb().g; props[`${k}-b`] = c.toRgb().b; props[`${k}-a`] = c.toRgb().a; }); const primary = getColor(props['primary']); for (let i = 1; i < 10; i++) { const color = primary.clone().setAlpha(i / 10); props['primaryAlpha0' + i] = genValue(color); } for (let i = 1; i < 100; i++) { const color = primary.clone().lighten(i); props['primaryLighten' + i] = genValue(color); } for (let i = 1; i < 100; i++) { const color = primary.clone().darken(i); props['primaryDarken' + i] = genValue(color); } return props; } function genValue(c: tinycolor.Instance): string { return c.toRgbString(); }