import { useState } from 'react';
import { HamburgerIcon } from '@chakra-ui/icons';
import { Box, CloseButton, Container, Flex, IconButton, Image, Link, Stack, Text } from '@chakra-ui/react';
import RoadmapLogo from '../components/icons/roadmap.svg';
import siteConfig from '../content/site.json';

type MenuLinkProps = {
  text: string;
  link: string;
  target?: '_blank' | '_self' | '_parent' | '_top';
  isFancy?: boolean;
};

function MenuLink(props: MenuLinkProps) {
  const { text, link, target = '_self', isFancy = false } = props;

  const gradientProp = isFancy ? {
    bgGradient: 'linear(to-r, yellow.100, teal.100)',
    bgClip: 'text',
    _hover: {
      color: 'yellow.100'
    }
  } : {};

  return <Link
    borderBottomWidth={0}
    borderBottomColor='gray.500'
    _hover={{ textDecoration: 'none', borderBottomColor: 'white' }}
    fontWeight={500}
    href={link}
    target={target}
    {...gradientProp}
  >
    {text}
  </Link>;
}

function DesktopMenuLinks() {
  return (
    <Stack d={['none', 'flex', 'flex']} shouldWrapChildren isInline spacing='15px' alignItems='center' color='gray.50'
           fontSize='15px'>
      <MenuLink text={'Roadmaps'} link={'/roadmaps'} />
      <MenuLink text={'Guides'} link={'/guides'} />

      <MenuLink
        target={'_blank'}
        text={'We are Hiring'}
        isFancy
        link={'https://docs.google.com/forms/d/e/1FAIpQLSesFpPxgKx_8-L5hm7fw6NQpgGixrMGC4Cg3M8NHPQhFfSajQ/viewform'}
      />

      <Link ml='10px' bgGradient='linear(to-l, yellow.700, red.600)' p='7px 10px' rounded='4px'
            _hover={{ textDecoration: 'none', bgGradient: 'linear(to-l, red.800, yellow.700)' }}
            fontWeight={500} href={'/signup'}>Subscribe</Link>
    </Stack>
  );
}

function MobileMenuLinks() {
  const [isOpen, setIsOpen] = useState(false);

  return (
    <>
      <IconButton
        rounded='5px'
        padding={0}
        aria-label={'Menu'}
        d={['block', 'none', 'none']}
        icon={<HamburgerIcon color='white' w='25px' height='25px' />}
        color='white'
        cursor='pointer'
        h='auto'
        bg='transparent'
        _hover={{ bg: 'transparent' }}
        _active={{ bg: 'transparent' }}
        _focus={{ bg: 'transparent' }}
        onClick={() => setIsOpen(true)}
      />

      {isOpen && (
        <Stack color='gray.100'
               fontSize={['22px', '22px', '22px', '32px']}
               alignItems='center'
               justifyContent='center'
               pos='fixed'
               left={0}
               right={0}
               bottom={0}
               top={0}
               bg='gray.900'
               spacing='12px'
               zIndex={999}
        >
          <Link href='/roadmaps'>Roadmaps</Link>
          <Link href='/guides'>Guides</Link>
          <Link href='/watch'>Videos</Link>
          <Link href='/signup'>Subscribe</Link>
          <CloseButton onClick={() => setIsOpen(false)} pos='fixed' top='40px' right='15px' size='lg' />
        </Stack>
      )}
    </>
  );
}

type GlobalHeaderProps = {
  variant?: 'transparent' | 'solid'
};

export function GlobalHeader(props: GlobalHeaderProps) {
  const { variant = 'solid' } = props;

  return (
    <Box bg={variant === 'solid' ? 'gray.900' : 'transparent'} p='20px 0'>
      <Container maxW='container.md'>
        <Flex justifyContent='space-between' alignItems='center'>
          <Box>
            <Link w='100%'
                  d='flex'
                  href='/'
                  alignItems='center'
                  color='white'
                  fontWeight={600}
                  _hover={{ textDecoration: 'none' }}
                  fontSize='18px'>
              <RoadmapLogo style={{ height: '30px', width: '30px', marginRight: '10px' }} />
              <Text d={['block', 'none', 'block']} as='span'>roadmap.sh</Text>
            </Link>
          </Box>
          <DesktopMenuLinks />
          <MobileMenuLinks />
        </Flex>
      </Container>
    </Box>
  );
}