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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,138 @@ | ||
| import {trpc} from '@/app/_trpc/client' | ||
| import {useViewer} from '@/context/viewer-context' | ||
| import Spinner from '@/spinner' | ||
| import {cn} from '@/ui/utils' | ||
| import {useEffect, useState} from 'react' | ||
|
|
||
| interface LikeButtonProps { | ||
| postId: number | ||
| className?: string | ||
| } | ||
|
|
||
| export function LikeButton({postId, className}: LikeButtonProps) { | ||
| const utils = trpc.useUtils() | ||
| const [mounted, setMounted] = useState(false) | ||
| const [optimisticLiked, setOptimisticLiked] = useState(false) | ||
| const [optimisticCount, setOptimisticCount] = useState<number | null>(null) | ||
| const {authenticated, loading: viewerLoading} = useViewer() | ||
|
|
||
| const { | ||
| data: likeCount, | ||
| isLoading: countLoading, | ||
| status: countStatus, | ||
| } = trpc.likes.getLikesForPost.useQuery({postId}) | ||
| const { | ||
| data: hasLiked, | ||
| isLoading: likedLoading, | ||
| status: likedStatus, | ||
| } = trpc.likes.hasUserLikedPost.useQuery({postId}) | ||
|
|
||
| const { | ||
| mutate: toggleLike, | ||
| isLoading: mutationLoading, | ||
| isIdle, | ||
| } = trpc.likes.toggleLike.useMutation({ | ||
| onMutate: () => { | ||
| setOptimisticLiked(!optimisticLiked) | ||
| setOptimisticCount((prev) => | ||
| prev !== null ? (optimisticLiked ? prev - 1 : prev + 1) : null, | ||
| ) | ||
| }, | ||
| onSettled: () => { | ||
| utils.likes.getLikesForPost.invalidate({postId}) | ||
| utils.likes.hasUserLikedPost.invalidate({postId}) | ||
| }, | ||
| onError: () => { | ||
| setOptimisticLiked(!optimisticLiked) | ||
| setOptimisticCount((prev) => | ||
| prev !== null ? (optimisticLiked ? prev + 1 : prev - 1) : null, | ||
| ) | ||
| }, | ||
| }) | ||
|
|
||
| useEffect(() => { | ||
| setMounted(true) | ||
| }, []) | ||
|
|
||
| useEffect(() => { | ||
| if (hasLiked !== undefined) setOptimisticLiked(hasLiked) | ||
| }, [hasLiked]) | ||
|
|
||
| useEffect(() => { | ||
| if (likeCount !== undefined) setOptimisticCount(likeCount) | ||
| }, [likeCount]) | ||
|
|
||
| const isLoading = | ||
| countStatus !== 'success' || likedStatus !== 'success' || viewerLoading | ||
| const isLiked = mounted && optimisticLiked | ||
|
|
||
| return ( | ||
| <button | ||
| onClick={() => !viewerLoading && toggleLike({postId})} | ||
| disabled={isLoading} | ||
| className={cn( | ||
| 'flex items-center gap-1.5 text-sm transition duration-300 ease-in-out dark:shadow-md px-3 py-2 rounded bg-gradient-to-tr dark:from-gray-800 dark:to-gray-700 from-yellow-300/20 border-pink-400/5 relative border dark:border-0 to-amber-300/20 hover:bg-amber-300/30', | ||
| { | ||
| '': isLiked, | ||
| 'dark:text-gray-200 hover:dark:text-white': !isLiked, | ||
| 'animate-pulse opacity-50': isLoading, | ||
| }, | ||
| className, | ||
| )} | ||
| aria-label={optimisticLiked ? 'Unlike post' : 'Like post'} | ||
| > | ||
| {isLiked ? ( | ||
| <svg | ||
| className={cn('h-4 w-4', { | ||
| 'animate-pulse': isLoading, | ||
| })} | ||
| xmlns="http://www.w3.org/2000/svg" | ||
| width="12" | ||
| height="12" | ||
| viewBox="0 0 12 12" | ||
| aria-label="Unlike post" | ||
| > | ||
| <g fill="currentColor"> | ||
| <path | ||
| d="M9.956,4.5H6.731v-3A1.314,1.314,0,0,0,5.634,0a1.3,1.3,0,0,0-.4,0,.5.5,0,0,0-.45.375L3,6v6H9.431a2.009,2.009,0,0,0,1.95-1.725l.6-3.45a1.9,1.9,0,0,0-.45-1.575A1.883,1.883,0,0,0,9.956,4.5Z" | ||
| fill="currentColor" | ||
| /> | ||
| <path d="M.5,6H2v6H.5a.5.5,0,0,1-.5-.5v-5A.5.5,0,0,1,.5,6Z" /> | ||
| </g> | ||
| </svg> | ||
| ) : ( | ||
| <svg | ||
| className={cn('h-4 w-4', { | ||
| 'animate-pulse': isLoading, | ||
| })} | ||
| xmlns="http://www.w3.org/2000/svg" | ||
| width="12" | ||
| height="12" | ||
| viewBox="0 0 12 12" | ||
| aria-label="Like post" | ||
| > | ||
| <g | ||
| strokeWidth="1" | ||
| fill="none" | ||
| stroke="currentColor" | ||
| strokeLinecap="round" | ||
| strokeLinejoin="round" | ||
| > | ||
| <polyline | ||
| points="2.5 11.5 0.5 11.5 0.5 6.5 2.5 6.5" | ||
| stroke="currentColor" | ||
| /> | ||
| <path d="M2.5,6.5l2-6H5A1.5,1.5,0,0,1,6.5,2V4.5H9.77a1.5,1.5,0,0,1,1.485,1.712l-.571,4A1.5,1.5,0,0,1,9.2,11.5H2.5Z" /> | ||
| </g> | ||
| </svg> | ||
| )} | ||
| {optimisticCount !== null ? ( | ||
| <span className="min-w-3 text-center tabular-nums"> | ||
| {optimisticCount} | ||
| </span> | ||
| ) : ( | ||
| <Spinner className="w-3" /> | ||
| )} | ||
| </button> | ||
| ) | ||
| } |
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