import React, { useState } from 'react'
import MasonryGallery from '../gallery/MasonryGallery'

const SORT_OPTIONS = [
  { value: 'latest', label: 'Latest' },
  { value: 'trending', label: 'Trending' },
  { value: 'rising', label: 'Rising' },
  { value: 'views', label: 'Most Viewed' },
  { value: 'favs', label: 'Most Favourited' },
]

function slugify(str) {
  return (str || '').toLowerCase().replace(/[^a-z0-9]+/g, '-').replace(/^-|-$/g, '')
}

function FeaturedStrip({ featuredArtworks }) {
  if (!featuredArtworks?.length) return null

  return (
    <div className="mb-7 rounded-2xl border border-white/10 bg-white/[0.02] p-4 md:p-5">
      <h2 className="mb-3 flex items-center gap-2 text-xs font-semibold uppercase tracking-widest text-slate-400">
        <i className="fa-solid fa-star fa-fw text-amber-400" />
        Featured
      </h2>
      <div className="scrollbar-hide flex snap-x snap-mandatory gap-4 overflow-x-auto pb-2">
        {featuredArtworks.slice(0, 5).map((art) => (
          <a
            key={art.id}
            href={`/art/${art.id}/${slugify(art.name)}`}
            className="group w-56 shrink-0 snap-start md:w-64"
          >
            <div className="aspect-[5/3] overflow-hidden rounded-xl bg-black/30 ring-1 ring-white/10 transition-all hover:ring-sky-400/40">
              <img
                src={art.thumb}
                alt={art.name}
                className="h-full w-full object-cover transition-transform duration-300 group-hover:scale-[1.03]"
                loading="lazy"
              />
            </div>
            <p className="mt-2 truncate text-sm text-slate-300 transition-colors group-hover:text-white">
              {art.name}
            </p>
            {art.label ? <p className="truncate text-[11px] text-slate-600">{art.label}</p> : null}
          </a>
        ))}
      </div>
    </div>
  )
}

export default function ProfileGalleryPanel({ artworks, featuredArtworks, username }) {
  const [sort, setSort] = useState('latest')
  const [items, setItems] = useState(artworks?.data ?? artworks ?? [])
  const [nextCursor, setNextCursor] = useState(artworks?.next_cursor ?? null)

  const handleSort = async (newSort) => {
    setSort(newSort)
    setItems([])

    try {
      const response = await fetch(`/api/profile/${encodeURIComponent(username)}/artworks?sort=${newSort}`, {
        headers: { Accept: 'application/json' },
      })

      if (!response.ok) {
        return
      }

      const data = await response.json()
      setItems(data.data ?? data)
      setNextCursor(data.next_cursor ?? null)
    } catch (_) {}
  }

  return (
    <>
      <FeaturedStrip featuredArtworks={featuredArtworks} />

      <div className="mb-5 flex flex-wrap items-center gap-3">
        <span className="text-xs font-semibold uppercase tracking-wider text-slate-500">Sort</span>
        <div className="flex flex-wrap gap-1">
          {SORT_OPTIONS.map((opt) => (
            <button
              key={opt.value}
              type="button"
              onClick={() => handleSort(opt.value)}
              className={`rounded-lg px-3 py-1.5 text-xs font-medium transition-all ${
                sort === opt.value
                  ? 'bg-sky-500/20 text-sky-300 ring-1 ring-sky-400/40'
                  : 'text-slate-400 hover:bg-white/5 hover:text-white'
              }`}
            >
              {opt.label}
            </button>
          ))}
        </div>
      </div>

      <MasonryGallery
        key={`profile-${username}-${sort}`}
        artworks={items}
        galleryType="profile"
        cursorEndpoint={`/api/profile/${encodeURIComponent(username)}/artworks?sort=${encodeURIComponent(sort)}`}
        initialNextCursor={nextCursor}
        limit={24}
      />
    </>
  )
}