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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();
}
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