import React from 'react';
import { styled, Switch, useTheme } from '@mui/material';
import { saveTheme, THEME_MODE, useThemeDispatch } from '../../../contexts/theme';

const StyledSwitcher = styled(Switch)(({ theme }) => ({
  width: 36,
  height: 20,
  padding: '2px 0',
  '& .MuiIconButton-label': {
    width: '20px !important',
    height: '20px',
  },
  '& .MuiSwitch-switchBase': {
    padding: 0,
    '&.Mui-checked': {
      color: '#fff',
      transform: 'translateX(16px)',
      '& .MuiSwitch-thumb:before': {
        backgroundImage: `url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" height="20" width="20" viewBox="-2 -2 24 24"><path fill="${encodeURIComponent(
          '#fff'
        )}" d="M4.2 2.5l-.7 1.8-1.8.7 1.8.7.7 1.8.6-1.8L6.7 5l-1.9-.7-.6-1.8zm15 8.3a6.7 6.7 0 11-6.6-6.6 5.8 5.8 0 006.6 6.6z"/></svg>')`,
      },
      '& + .MuiSwitch-track': {
        opacity: 1,
        backgroundColor: theme.palette.mode === 'dark' ? '#8796A5' : '#aab4be',
      },
    },
  },
  '& .MuiSwitch-thumb': {
    backgroundColor: theme.palette.mode === 'dark' ? '#003892' : '#fff',
    width: 20,
    height: 20,
    '&:before': {
      content: "''",
      position: 'absolute',
      width: '100%',
      height: '100%',
      left: 0,
      top: 0,
      backgroundRepeat: 'no-repeat',
      backgroundPosition: 'center',
      backgroundImage: `url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" height="20" width="20" viewBox="-2 -2 24 24"><path fill="${encodeURIComponent(
        '#f87e03'
      )}" d="M9.305 1.667V3.75h1.389V1.667h-1.39zm-4.707 1.95l-.982.982L5.09 6.072l.982-.982-1.473-1.473zm10.802 0L13.927 5.09l.982.982 1.473-1.473-.982-.982zM10 5.139a4.872 4.872 0 00-4.862 4.86A4.872 4.872 0 0010 14.862 4.872 4.872 0 0014.86 10 4.872 4.872 0 0010 5.139zm0 1.389A3.462 3.462 0 0113.471 10a3.462 3.462 0 01-3.473 3.472A3.462 3.462 0 016.527 10 3.462 3.462 0 0110 6.528zM1.665 9.305v1.39h2.083v-1.39H1.666zm14.583 0v1.39h2.084v-1.39h-2.084zM5.09 13.928L3.616 15.4l.982.982 1.473-1.473-.982-.982zm9.82 0l-.982.982 1.473 1.473.982-.982-1.473-1.473zM9.305 16.25v2.083h1.389V16.25h-1.39z"/></svg>')`,
    },
  },
  '& .MuiSwitch-track': {
    opacity: 1,
    backgroundColor: theme.palette.mode === 'dark' ? '#8796A5' : '#aab4be',
    borderRadius: 12,
  },
}));

function ThemeSwitcher() {
  const theme = useTheme();
  const switchTheme = useThemeDispatch();

  const handleChange = (event, checked) => {
    const mode = checked ? THEME_MODE.DARK : THEME_MODE.LIGHT;
    saveTheme(mode);
    switchTheme({ type: 'change', payload: mode });
  };

  return <StyledSwitcher checked={theme.palette.mode === THEME_MODE.DARK} onChange={handleChange} />;
}

export default ThemeSwitcher;