All files / apps/host/src/hooks usePendingRequestsManager.ts

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68% Branches 17/25
100% Functions 18/18
95.45% Lines 42/44

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import { useEffect, useState } from 'react';
 
import { CARD_TYPE_NEW_REQUEST } from '@/components/AnimatedPendingRequestList/constants';
 
import { useAuth } from '@/contexts/AuthContext';
 
import { PROCESSING_BY_RESPONSE } from '@/constants/apis';
 
import { AnimatedPendingRequestCardData } from '@/types/card';
import { ActivityState } from '@/types/request';
 
const NEW_REQUEST_CARD_ID = CARD_TYPE_NEW_REQUEST;
 
interface UsePendingRequestsManagerProps {
  data?: {
    items: any[];
    meta?: {
      total?: number;
    };
  };
}
 
export const usePendingRequestsManager = ({ data }: UsePendingRequestsManagerProps) => {
  const [items, setItems] = useState<AnimatedPendingRequestCardData[]>([]);
  const [total, setTotal] = useState<number>(0);
  const [pendingRemoveId, setPendingRemoveId] = useState<string | null>(null);
  const { user } = useAuth();
 
  useEffect(() => {
    if (!data) {
      return;
    }
 
    const serverRequests: AnimatedPendingRequestCardData[] = data.items.map(item => ({
      ...item,
      type: 'request' as const,
    }));
 
    const serverMap = new Map(serverRequests.map(r => [r.id, r]));
    setTotal(data.meta?.total || 0);
 
    setItems(prev => {
      // Initial load: add server items followed by the "New Request" card
      if (!prev.length) {
        return [...serverRequests, { id: NEW_REQUEST_CARD_ID, type: CARD_TYPE_NEW_REQUEST }];
      }
 
      // Merge: Update existing items from server while preserving their current local order
      const merged = prev
        .filter(i => i.id === NEW_REQUEST_CARD_ID || serverMap.has(i.id))
        .map(i => {
          if (i.id === NEW_REQUEST_CARD_ID) {
            return i;
          }
          return { ...i, ...serverMap.get(i.id)! };
        });
 
      const existingIds = new Set(prev.map(i => i.id));
      const newlyAdded = serverRequests.filter(r => !existingIds.has(r.id));
 
      // Ensure "New Request" card always stays at the end of the deck
      const loopIdx = merged.findIndex(i => i.id === NEW_REQUEST_CARD_ID);
 
      const result = [...merged];
      if (loopIdx !== -1) {
        result.splice(loopIdx, 0, ...newlyAdded);
      } else E{
        result.push(...newlyAdded, { id: NEW_REQUEST_CARD_ID, type: CARD_TYPE_NEW_REQUEST });
      }
 
      return result;
    });
  }, [data]);
 
  useEffect(() => {
    if (!pendingRemoveId) {
      return;
    }
 
    // Remove item after animation is triggered
    setItems(prev => prev.filter(i => i.id !== pendingRemoveId));
    setPendingRemoveId(null);
  }, [pendingRemoveId]);
 
  const moveToBack = (item: AnimatedPendingRequestCardData, isProceed = false) => {
    setItems(prev => {
      const rest = prev.filter(i => i.id !== item.id);
      let updatedItem: AnimatedPendingRequestCardData;
 
      if (isProceed) {
        // Record user activity when request is being processed
        updatedItem = {
          ...item,
          processingBy: user?.email || PROCESSING_BY_RESPONSE.NONE,
          activities: [
            {
              name: user?.displayName || '',
              email: user?.email || '',
              avatar: user?.photoURL || '',
              occurredAt: new Date().toISOString(),
              state: ActivityState.PENDING,
              isApproved: false,
              note: '',
            },
          ],
        };
      } else E{
        updatedItem = item;
      }
 
      // Move item to the end of the deck (bottom of the UI stack)
      return [...rest, updatedItem];
    });
  };
 
  const markForRemoval = (id: string) => {
    setPendingRemoveId(id);
    setTotal(prevTotal => prevTotal - 1);
  };
 
  return { items, total, moveToBack, markForRemoval };
};