import { Link } from 'react-router'
import { Heart, Clock } from 'lucide-react'
import { useMutation, useQueryClient } from '@tanstack/react-query'
import { toggleFavorite } from '../../api/recipes'
import { useAuth } from '../../context/AuthContext'
import type { Recipe } from '../../api/types'

const gradients = [
  'from-primary/60 to-secondary/60',
  'from-secondary/60 to-sage/60',
  'from-primary-light to-primary/40',
  'from-sage/40 to-secondary/60',
]

export function RecipeCard({ recipe }: { recipe: Recipe }) {
  const { isAuthenticated } = useAuth()
  const qc = useQueryClient()
  const favMutation = useMutation({
    mutationFn: () => toggleFavorite(recipe.id),
    onSuccess: () => qc.invalidateQueries({ queryKey: ['recipes'] }),
  })

  const gradient = gradients[recipe.title.length % gradients.length]
  const totalTime = recipe.total_time_min || ((recipe.prep_time_min || 0) + (recipe.cook_time_min || 0))

  return (
    <div className="bg-surface rounded-2xl overflow-hidden shadow-sm break-inside-avoid mb-4">
      <Link to={`/recipe/${recipe.slug}`}>
        {recipe.image_url ? (
          <img src={recipe.image_url} alt={recipe.title} className="w-full h-auto object-cover" loading="lazy" />
        ) : (
          <div className={`w-full aspect-[3/4] bg-gradient-to-br ${gradient} flex items-center justify-center`}>
            <span className="text-4xl">🍰</span>
          </div>
        )}
      </Link>
      <div className="p-3">
        <Link to={`/recipe/${recipe.slug}`}>
          <h3 className="font-display text-base sm:text-lg text-espresso line-clamp-2">{recipe.title}</h3>
        </Link>
        {isAuthenticated && (
          <div className="flex items-center justify-between mt-2">
            {totalTime > 0 && (
              <span className="flex items-center gap-1 text-warm-grey text-xs">
                <Clock size={14} /> {totalTime} min
              </span>
            )}
            <button
              onClick={(e) => { e.preventDefault(); e.stopPropagation(); favMutation.mutate() }}
              className="ml-auto p-2 -mr-2 min-w-[44px] min-h-[44px] flex items-center justify-center active:scale-125 transition-transform"
            >
              <Heart
                size={22}
                className={recipe.is_favorite ? 'fill-primary text-primary' : 'text-warm-grey'}
              />
            </button>
          </div>
        )}
      </div>
    </div>
  )
}
