import type { ReactNode } from 'react'
import { ChevronLeft, ChevronRight } from 'lucide-react'
import Link from 'next/link'

interface PageNeighbour {
  url: string
  name: ReactNode
}

interface PageFooterProps {
  previous?: PageNeighbour
  next?: PageNeighbour
}

const SOCIAL_LINKS = [
  {
    href: 'https://x.com/simdotai',
    label: 'X (Twitter)',
    icon: 'M18.244 2.25h3.308l-7.227 8.26 8.502 11.24H16.17l-5.214-6.817L4.99 21.75H1.68l7.73-8.835L1.254 2.25H8.08l4.713 6.231zm-1.161 17.52h1.833L7.084 4.126H5.117z',
  },
  {
    href: 'https://github.com/simstudioai/sim',
    label: 'GitHub',
    icon: 'M12 0c-6.626 0-12 5.373-12 12 0 5.302 3.438 9.8 8.207 11.387.599.111.793-.261.793-.577v-2.234c-3.338.726-4.033-1.416-4.033-1.416-.546-1.387-1.333-1.756-1.333-1.756-1.089-.745.083-.729.083-.729 1.205.084 1.839 1.237 1.839 1.237 1.07 1.834 2.807 1.304 3.492.997.107-.775.418-1.305.762-1.604-2.665-.305-5.467-1.334-5.467-5.931 0-1.311.469-2.381 1.236-3.221-.124-.303-.535-1.524.117-3.176 0 0 1.008-.322 3.301 1.23.957-.266 1.983-.399 3.003-.404 1.02.005 2.047.138 3.006.404 2.291-1.552 3.297-1.23 3.297-1.23.653 1.653.242 2.874.118 3.176.77.84 1.235 1.911 1.235 3.221 0 4.609-2.807 5.624-5.479 5.921.43.372.823 1.102.823 2.222v3.293c0 .319.192.694.801.576 4.765-1.589 8.199-6.086 8.199-11.386 0-6.627-5.373-12-12-12z',
  },
  {
    href: 'https://discord.gg/Hr4UWYEcTT',
    label: 'Discord',
    icon: 'M20.317 4.37a19.791 19.791 0 0 0-4.885-1.515.074.074 0 0 0-.079.037c-.21.375-.444.864-.608 1.25a18.27 18.27 0 0 0-5.487 0 12.64 12.64 0 0 0-.617-1.25.077.077 0 0 0-.079-.037A19.736 19.736 0 0 0 3.677 4.37a.07.07 0 0 0-.032.027C.533 9.046-.32 13.58.099 18.057a.082.082 0 0 0 .031.057 19.9 19.9 0 0 0 5.993 3.03.078.078 0 0 0 .084-.028 14.09 14.09 0 0 0 1.226-1.994.076.076 0 0 0-.041-.106 13.107 13.107 0 0 1-1.872-.892.077.077 0 0 1-.008-.128 10.2 10.2 0 0 0 .372-.292.074.074 0 0 1 .077-.01c3.928 1.793 8.18 1.793 12.062 0a.074.074 0 0 1 .078.01c.12.098.246.198.373.292a.077.077 0 0 1-.006.127 12.299 12.299 0 0 1-1.873.892.077.077 0 0 0-.041.107c.36.698.772 1.362 1.225 1.993a.076.076 0 0 0 .084.028 19.839 19.839 0 0 0 6.002-3.03.077.077 0 0 0 .032-.054c.5-5.177-.838-9.674-3.549-13.66a.061.061 0 0 0-.031-.03zM8.02 15.33c-1.183 0-2.157-1.085-2.157-2.419 0-1.333.956-2.419 2.157-2.419 1.21 0 2.176 1.096 2.157 2.42 0 1.333-.956 2.418-2.157 2.418zm7.975 0c-1.183 0-2.157-1.085-2.157-2.419 0-1.333.955-2.419 2.157-2.419 1.21 0 2.176 1.096 2.157 2.42 0 1.333-.946 2.418-2.157 2.418z',
  },
] as const

export function PageFooter({ previous, next }: PageFooterProps) {
  return (
    <div className='mt-12'>
      <div className='h-px w-full bg-[var(--border)]' />

      {(previous || next) && (
        <div className='flex gap-2 py-3'>
          {previous ? (
            <Link
              href={previous.url}
              className='group flex flex-1 flex-col gap-1 rounded-lg px-3 py-3 transition-colors hover:bg-[var(--surface-3)]'
            >
              <span className='text-[var(--text-muted)] text-xs'>Previous</span>
              <span className='flex items-center gap-1.5 text-[var(--text-body)] text-sm transition-colors group-hover:text-[var(--text-primary)]'>
                <ChevronLeft className='size-3.5 shrink-0' />
                {previous.name}
              </span>
            </Link>
          ) : (
            <div className='flex-1' />
          )}

          {next ? (
            <Link
              href={next.url}
              className='group flex flex-1 flex-col items-end gap-1 rounded-lg px-3 py-3 transition-colors hover:bg-[var(--surface-3)]'
            >
              <span className='text-[var(--text-muted)] text-xs'>Next</span>
              <span className='flex items-center gap-1.5 text-[var(--text-body)] text-sm transition-colors group-hover:text-[var(--text-primary)]'>
                {next.name}
                <ChevronRight className='size-3.5 shrink-0' />
              </span>
            </Link>
          ) : (
            <div className='flex-1' />
          )}
        </div>
      )}

      <div className='flex items-center gap-4 pt-4 pb-6'>
        {SOCIAL_LINKS.map((link) => (
          <Link
            key={link.label}
            href={link.href}
            target='_blank'
            rel='noopener noreferrer'
            aria-label={link.label}
          >
            <svg
              viewBox='0 0 24 24'
              className='size-[16px] fill-[var(--text-muted)] transition-colors hover:fill-[var(--text-icon)]'
            >
              <path d={link.icon} />
            </svg>
          </Link>
        ))}
      </div>
    </div>
  )
}