parcer/src/context/theme-provider.tsx

import React, { createContext, useContext, useState, useEffect } from 'react';
import { ThemeProvider, createTheme } from '@mui/material/styles';
import CssBaseline from '@mui/material/CssBaseline';

const lightTheme = createTheme({
  palette: {
    mode: 'light',
    primary: {
      main: '#1e88e5',
    },
    background: {
      default: '#ffffff',
      paper: '#f5f5f5',
    },
    text: {
      primary: '#000000',
    },
  },
});

const darkTheme = createTheme({
  palette: {
    mode: 'dark',
    primary: {
      main: '#90caf9',
    },
    background: {
      default: '#121212',
      paper: '#1e2124',
    },
    text: {
      primary: '#ffffff',
    },
  },
});

const ThemeModeContext = createContext({
  toggleTheme: () => {},
  darkMode: false,
});

export const useThemeMode = () => useContext(ThemeModeContext);

const ThemeModeProvider = ({ children }: { children: React.ReactNode }) => {
  // Load saved mode from localStorage or default to light mode
  const [darkMode, setDarkMode] = useState(() => {
    const savedMode = localStorage.getItem('darkMode');
    return savedMode ? JSON.parse(savedMode) : false;
  });

  const toggleTheme = () => {
    setDarkMode((prevMode: any) => {
      const newMode = !prevMode;
      localStorage.setItem('darkMode', JSON.stringify(newMode)); // Save new mode to localStorage
      return newMode;
    });
  };

  useEffect(() => {
    localStorage.setItem('darkMode', JSON.stringify(darkMode)); // Save initial mode
  }, [darkMode]);

  return (
    <ThemeModeContext.Provider value={{ toggleTheme, darkMode }}>
      <ThemeProvider theme={darkMode ? darkTheme : lightTheme}>
        <CssBaseline />
        {children}
      </ThemeProvider>
    </ThemeModeContext.Provider>
  );
};

export default ThemeModeProvider;