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import { toast } from 'sonner';
// Types
import { UserReaction } from '@/types';
// Components
import { ReactionButton } from './ReactionButton';
import {
LikeIcon,
SelectedLikeIcon,
DislikeIcon,
SelectedDislikeIcon,
} from '@/components/icons/reacts';
// Services
import { auth, reactionService } from '@/services';
// Hooks
import { useReaction } from '@/hooks/useReaction';
import { useVoteOpen } from '@/hooks/useVoteOpen';
// Constants
import { ERROR_MESSAGES } from '@/constants';
import { STATUS_CODE, STATUS_MESSAGES } from '@shared/constants';
// Utils
import { getNowMs } from '@/utils';
interface IVoteReaction {
id: string;
countLike: number;
countDislike: number;
userReaction?: UserReaction;
disabled?: boolean;
date?: Date;
openHour?: number;
openMinute?: number;
}
const CLICK_COOLDOWN_MS = 500;
const WS_SYNC_GRACE_MS = 900;
export const VoteReaction = ({
id,
countLike,
countDislike,
userReaction,
disabled,
date,
openHour = 11,
openMinute = 30,
}: IVoteReaction) => {
const dataWsReaction = useReaction(id);
const canVote = date ? useVoteOpen(date, openHour, openMinute) : false;
const [active, setActive] = useState<UserReaction | null>(
userReaction ?? null,
);
const [likes, setLikes] = useState(countLike);
const [dislikes, setDislikes] = useState(countDislike);
const [loading, setLoading] = useState<UserReaction | null>(null);
const [showLikeBubble, setShowLikeBubble] = useState(false);
const [showDislikeBubble, setShowDislikeBubble] = useState(false);
const [isLikeAnimating, setIsLikeAnimating] = useState(false);
const [isDislikeAnimating, setIsDislikeAnimating] = useState(false);
const [pendingReaction, setPendingReaction] = useState<UserReaction | null>(
null,
);
// Prevent rapid repeat requests when users spam-click reaction buttons.
const lastAcceptedClickAt = useRef(0);
const ignoreWsUntil = useRef(0);
useEffect(() => {
if (!dataWsReaction) return;
if (getNowMs() < ignoreWsUntil.current) return;
if (!pendingReaction) {
// only update if numbers are different, clamp to >= 0
setLikes((prev) =>
prev !== dataWsReaction.likes
? Math.max(0, dataWsReaction.likes)
: prev,
);
setDislikes((prev) =>
prev !== dataWsReaction.dislikes
? Math.max(0, dataWsReaction.dislikes)
: prev,
);
}
}, [dataWsReaction, pendingReaction]);
const handleClick = useCallback(
async (type: UserReaction) => {
if (disabled || loading !== null) return;
const now = getNowMs();
if (now - lastAcceptedClickAt.current < CLICK_COOLDOWN_MS) return;
lastAcceptedClickAt.current = now;
ignoreWsUntil.current = now + WS_SYNC_GRACE_MS;
setLoading(type);
setPendingReaction(type);
// optimistic UI update
setActive((prev) => {
const isDeselect = prev === type;
const isSwitch = prev !== null && prev !== type;
if (isDeselect) {
if (type === UserReaction.LIKE) setLikes((l) => Math.max(0, l - 1));
else setDislikes((d) => Math.max(0, d - 1));
return null;
}
if (isSwitch) {
if (type === UserReaction.LIKE) {
setLikes((l) => l + 1);
setDislikes((d) => Math.max(0, d - 1));
} else {
setDislikes((d) => d + 1);
setLikes((l) => Math.max(0, l - 1));
}
return type;
}
if (type === UserReaction.LIKE) setLikes((l) => l + 1);
else setDislikes((d) => d + 1);
return type;
});
if (!auth.currentUser) {
toast.error(STATUS_MESSAGES[STATUS_CODE.UNAUTHORIZED]);
setLoading(null);
setPendingReaction(null);
return;
}
try {
// Use cached token when still valid to avoid long waits between clicks.
const token = await auth.currentUser?.getIdToken();
const { success, error } = await reactionService({
lunchMenuId: id,
token,
type,
});
if (!success) {
toast.error(error?.message || ERROR_MESSAGES.DEFAULT);
}
} catch (error) {
toast.error(
error instanceof Error ? error.message : ERROR_MESSAGES.DEFAULT,
);
}
setLoading(null);
setPendingReaction(null);
},
[id, disabled, loading],
);
const finalDisabled = disabled || !canVote;
return (
<div className="w-full flex justify-between">
<ReactionButton
type={UserReaction.LIKE}
active={active === UserReaction.LIKE}
count={likes}
icon={<LikeIcon />}
selectedIcon={
<SelectedLikeIcon className="text-primary-350 h-[54px] w-[54px] sm:h-[36px] sm:w-[36px]" />
}
isAnimating={isLikeAnimating}
setIsAnimating={setIsLikeAnimating}
showBubble={showLikeBubble}
setShowBubble={setShowLikeBubble}
onClick={handleClick}
disabled={loading !== null || finalDisabled}
align="right"
isTimeDisabled={!canVote}
/>
<ReactionButton
type={UserReaction.DISLIKE}
active={active === UserReaction.DISLIKE}
count={dislikes}
icon={<DislikeIcon />}
selectedIcon={
<SelectedDislikeIcon className="text-primary-550 h-[54px] w-[54px] sm:h-[36px] sm:w-[36px]" />
}
isAnimating={isDislikeAnimating}
setIsAnimating={setIsDislikeAnimating}
showBubble={showDislikeBubble}
setShowBubble={setShowDislikeBubble}
onClick={handleClick}
disabled={loading !== null || finalDisabled}
align="left"
isTimeDisabled={!canVote}
/>
</div>
);
};
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