import Box from '@mui/material/Box';
import Typography from '@mui/material/Typography';
import Fade from '@mui/material/Fade';

interface FullScreenLoaderProps {
  message?: string;
  fullScreen?: boolean;
}

export const FullScreenLoader = ({
  message,
  fullScreen = true,
}: FullScreenLoaderProps) => {
  const containerSx = fullScreen
    ? {
        position: 'fixed' as const,
        inset: 0,
        display: 'flex',
        flexDirection: 'column' as const,
        alignItems: 'center',
        justifyContent: 'center',
        gap: 3,
        zIndex: 9999,
        pointerEvents: 'none' as const,
      }
    : {
        display: 'flex',
        flexDirection: 'column' as const,
        alignItems: 'center',
        justifyContent: 'center',
        gap: 3,
        width: '100%',
        height: '100%',
      };

  return (
    <Box sx={containerSx}>
      {/* Плавное появление фона */}
      {fullScreen && (
        <Fade in timeout={220} appear>
          <Box
            sx={{
              position: 'absolute',
              inset: 0,
              background:
                'radial-gradient(circle at 15% 20%, rgba(242,113,33,0.15), transparent 60%), radial-gradient(circle at 85% 10%, rgba(233,64,205,0.12), transparent 55%), rgba(5,5,10,0.75)',
              backdropFilter: 'blur(14px)',
              WebkitBackdropFilter: 'blur(14px)',
            }}
          />
        </Fade>
      )}

      {/* Плавное появление контента */}
      <Fade in timeout={260} appear>
        <Box
          sx={{
            zIndex: 1,
            display: 'flex',
            flexDirection: 'column',
            alignItems: 'center',
            gap: 3,
            // небольшой "подъём" при появлении
            animation: 'popIn 260ms ease-out both',
            '@keyframes popIn': {
              from: { opacity: 0, transform: 'translateY(8px) scale(0.98)' },
              to: { opacity: 1, transform: 'translateY(0) scale(1)' },
            },
          }}
        >
          <Box
            sx={{
              width: 80,
              height: 80,
              borderRadius: '50%',
              position: 'relative',
              overflow: 'hidden',
              background: 'conic-gradient(#F27121, #E940CD, #8A2387, #F27121)',
              animation: 'spin 1s linear infinite',
              WebkitMask: 'radial-gradient(circle, transparent 55%, black 56%)',
              mask: 'radial-gradient(circle, transparent 55%, black 56%)',
              '@keyframes spin': {
                '0%': { transform: 'rotate(0deg)' },
                '100%': { transform: 'rotate(360deg)' },
              },
              boxShadow: '0 0 2.5vw rgba(233,64,205,0.45)',
            }}
          />

          {message && (
            <Typography
              variant="h6"
              sx={{
                fontFamily: 'Benzin-Bold',
                background:
                  'linear-gradient(71deg, #F27121 0%, #E940CD 70%, #8A2387 100%)',
                WebkitBackgroundClip: 'text',
                WebkitTextFillColor: 'transparent',
                textAlign: 'center',
                textShadow: '0 0 1.2vw rgba(0,0,0,0.45)',
              }}
            >
              {message}
            </Typography>
          )}
        </Box>
      </Fade>
    </Box>
  );
};
