barkey/packages/frontend/src/scripts/theme-editor.ts
2022-12-27 14:36:33 +09:00

81 lines
2.3 KiB
TypeScript

import { v4 as uuid } from 'uuid';
import { themeProps, Theme } from './theme';
export type Default = null;
export type Color = string;
export type FuncName = 'alpha' | 'darken' | 'lighten';
export type Func = { type: 'func'; name: FuncName; arg: number; value: string; };
export type RefProp = { type: 'refProp'; key: string; };
export type RefConst = { type: 'refConst'; key: string; };
export type Css = { type: 'css'; value: string; };
export type ThemeValue = Color | Func | RefProp | RefConst | Css | Default;
export type ThemeViewModel = [ string, ThemeValue ][];
export const fromThemeString = (str?: string) : ThemeValue => {
if (!str) return null;
if (str.startsWith(':')) {
const parts = str.slice(1).split('<');
const name = parts[0] as FuncName;
const arg = parseFloat(parts[1]);
const value = parts[2].startsWith('@') ? parts[2].slice(1) : '';
return { type: 'func', name, arg, value };
} else if (str.startsWith('@')) {
return {
type: 'refProp',
key: str.slice(1),
};
} else if (str.startsWith('$')) {
return {
type: 'refConst',
key: str.slice(1),
};
} else if (str.startsWith('"')) {
return {
type: 'css',
value: str.substr(1).trim(),
};
} else {
return str;
}
};
export const toThemeString = (value: Color | Func | RefProp | RefConst | Css) => {
if (typeof value === 'string') return value;
switch (value.type) {
case 'func': return `:${value.name}<${value.arg}<@${value.value}`;
case 'refProp': return `@${value.key}`;
case 'refConst': return `$${value.key}`;
case 'css': return `" ${value.value}`;
}
};
export const convertToMisskeyTheme = (vm: ThemeViewModel, name: string, desc: string, author: string, base: 'dark' | 'light'): Theme => {
const props = { } as { [key: string]: string };
for (const [key, value] of vm) {
if (value === null) continue;
props[key] = toThemeString(value);
}
return {
id: uuid(),
name, desc, author, props, base,
};
};
export const convertToViewModel = (theme: Theme): ThemeViewModel => {
const vm: ThemeViewModel = [];
// プロパティの登録
vm.push(...themeProps.map(key => [key, fromThemeString(theme.props[key])] as [ string, ThemeValue ]));
// 定数の登録
const consts = Object
.keys(theme.props)
.filter(k => k.startsWith('$'))
.map(k => [k, fromThemeString(theme.props[k])] as [ string, ThemeValue ]);
vm.push(...consts);
return vm;
};