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54 lines
1.4 KiB
54 lines
1.4 KiB
import { create } from 'zustand';
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import { devtools } from 'zustand/middleware';
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const fontSizes = ['sm', 'base', 'lg', 'xl', '2xl'] as const;
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type FontSize = (typeof fontSizes)[number];
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interface ThemeState {
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isDark: boolean;
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isSerif: boolean;
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fontSize: FontSize;
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isFontSizeMin: boolean;
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isFontSizeMax: boolean;
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toggleDark: () => void;
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toggleSerif: () => void;
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increaseFontSize: () => void;
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decreaseFontSize: () => void;
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}
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export const useThemeStore = create<ThemeState>()(
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devtools((set) => ({
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isDark: false,
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isSerif: false,
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fontSize: 'lg',
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isFontSizeMin: false,
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isFontSizeMax: false,
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toggleDark: () => set((state) => ({ isDark: !state.isDark })),
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toggleSerif: () => set((state) => ({ isSerif: !state.isSerif })),
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increaseFontSize: () =>
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set((state) => {
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if (state.isFontSizeMax) return state;
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const index = fontSizes.indexOf(state.fontSize);
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return {
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fontSize: fontSizes[index + 1],
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isFontSizeMax: index === fontSizes.length - 2,
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isFontSizeMin: false,
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};
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}),
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decreaseFontSize: () =>
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set((state) => {
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if (state.isFontSizeMin) return state;
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const index = fontSizes.indexOf(state.fontSize);
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return {
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fontSize: fontSizes[index - 1],
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isFontSizeMin: index === 1,
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isFontSizeMax: false,
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};
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}),
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})),
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);
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