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d97b8f9 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 | import { QueryClient } from '@tanstack/react-query';
import { AssetRequest } from '@/types/asset-request';
/**
* Utility functions for optimistic updates with rollback support
*/
interface OptimisticUpdateContext<T> {
previousData: T | undefined;
queryKey: unknown[];
}
/**
* Perform an optimistic update on a query
* @param queryClient - React Query client
* @param queryKey - Query key to update
* @param updater - Function to update the data
* @returns Context for rollback
*/
export const performOptimisticUpdate = <T>(
queryClient: QueryClient,
queryKey: unknown[],
updater: (oldData: T | undefined) => T
): OptimisticUpdateContext<T> => {
// Cancel any outgoing refetches
queryClient.cancelQueries({ queryKey });
// Snapshot the previous value
const previousData = queryClient.getQueryData<T>(queryKey);
// Optimistically update to the new value
queryClient.setQueryData<T>(queryKey, updater);
return { previousData, queryKey };
};
/**
* Rollback an optimistic update
* @param queryClient - React Query client
* @param context - Context from performOptimisticUpdate
*/
export const rollbackOptimisticUpdate = <T>(
queryClient: QueryClient,
context: OptimisticUpdateContext<T>
): void => {
queryClient.setQueryData(context.queryKey, context.previousData);
};
/**
* Optimistically update a request status
* @param queryClient - React Query client
* @param requestId - Request ID to update
* @param newStatus - New status
* @param additionalUpdates - Additional fields to update
* @returns Context for rollback
*/
export const optimisticallyUpdateRequestStatus = (
queryClient: QueryClient,
requestId: number,
newStatus: AssetRequest['status'],
additionalUpdates?: Partial<AssetRequest>
): OptimisticUpdateContext<AssetRequest[]>[] => {
const contexts: OptimisticUpdateContext<AssetRequest[]>[] = [];
// Update all relevant query keys
const queryKeys = [
['assetRequests', 'pending'],
['assetRequests', 'all'],
];
queryKeys.forEach((queryKey) => {
const context = performOptimisticUpdate<AssetRequest[]>(
queryClient,
queryKey,
(oldData) => {
if (!oldData) return [];
return oldData.map((request) =>
request.requestID === requestId
? {
...request,
status: newStatus,
...additionalUpdates,
}
: request
);
}
);
contexts.push(context);
});
return contexts;
};
/**
* Optimistically add a new request
* @param queryClient - React Query client
* @param newRequest - New request to add
* @param employeeId - Employee ID for employee-specific queries
* @returns Context for rollback
*/
export const optimisticallyAddRequest = (
queryClient: QueryClient,
newRequest: AssetRequest,
employeeId: number
): OptimisticUpdateContext<AssetRequest[]>[] => {
const contexts: OptimisticUpdateContext<AssetRequest[]>[] = [];
// Update employee-specific query
const employeeContext = performOptimisticUpdate<AssetRequest[]>(
queryClient,
['assetRequests', 'employee', employeeId],
(oldData) => {
if (!oldData) return [newRequest];
return [newRequest, ...oldData];
}
);
contexts.push(employeeContext);
// Update all requests query
const allContext = performOptimisticUpdate<AssetRequest[]>(
queryClient,
['assetRequests', 'all'],
(oldData) => {
if (!oldData) return [newRequest];
return [newRequest, ...oldData];
}
);
contexts.push(allContext);
// Update pending requests query
if (newRequest.status === 'pending') {
const pendingContext = performOptimisticUpdate<AssetRequest[]>(
queryClient,
['assetRequests', 'pending'],
(oldData) => {
if (!oldData) return [newRequest];
return [newRequest, ...oldData];
}
);
contexts.push(pendingContext);
}
return contexts;
};
/**
* Optimistically remove a request from a specific status list
* @param queryClient - React Query client
* @param requestId - Request ID to remove
* @param fromStatus - Status list to remove from
* @returns Context for rollback
*/
export const optimisticallyRemoveFromStatus = (
queryClient: QueryClient,
requestId: number,
fromStatus: 'pending' | 'approved'
): OptimisticUpdateContext<AssetRequest[]> => {
const queryKey = ['assetRequests', fromStatus];
return performOptimisticUpdate<AssetRequest[]>(
queryClient,
queryKey,
(oldData) => {
if (!oldData) return [];
return oldData.filter((request) => request.requestID !== requestId);
}
);
};
/**
* Rollback multiple optimistic updates
* @param queryClient - React Query client
* @param contexts - Array of contexts to rollback
*/
export const rollbackMultipleUpdates = <T>(
queryClient: QueryClient,
contexts: OptimisticUpdateContext<T>[]
): void => {
contexts.forEach((context) => {
rollbackOptimisticUpdate(queryClient, context);
});
};
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