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- Refactor fp state management to shuffle the list on fetch, this update make sure when refetch it doesn't re-shuffle the list
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117 changes: 95 additions & 22 deletions
117
src/app/hooks/finalityProviders/useFinalityProvidersData.ts
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,33 +1,106 @@ | ||
| import { useCallback, useEffect, useState } from "react"; | ||
| import { useEffect, useRef, useState } from "react"; | ||
|
|
||
| import { FinalityProvider as FinalityProviderInterface } from "@/app/types/finalityProviders"; | ||
| import { FinalityProvider } from "@/app/types/finalityProviders"; | ||
|
|
||
| export const useFinalityProvidersData = ( | ||
| initialProviders: FinalityProviderInterface[] | undefined, | ||
| initialProviders: FinalityProvider[] | undefined, | ||
| isRefetchingFinalityProviders: boolean, | ||
| isFetchedFinalityProviders: boolean, | ||
| ) => { | ||
| const [filteredProviders, setFilteredProviders] = useState(initialProviders); | ||
| const finalityProvidersRef = useRef<FinalityProvider[] | undefined>( | ||
| undefined, | ||
| ); | ||
| const [filteredFinalityProviders, setFilteredFinalityProviders] = useState< | ||
| FinalityProvider[] | undefined | ||
| >(undefined); | ||
| const [searchTerm, setSearchTerm] = useState(""); | ||
|
|
||
| useEffect(() => { | ||
| setFilteredProviders(initialProviders); | ||
| }, [initialProviders]); | ||
|
|
||
| const handleSearch = useCallback( | ||
| (searchTerm: string) => { | ||
| const filtered = initialProviders?.filter( | ||
| (fp) => | ||
| fp.description?.moniker | ||
| ?.toLowerCase() | ||
| .includes(searchTerm.toLowerCase()) || | ||
| fp.btcPk.toLowerCase().includes(searchTerm.toLowerCase()), | ||
| ); | ||
| setFilteredProviders(filtered); | ||
| }, | ||
| [initialProviders], | ||
| ); | ||
| if ( | ||
| !initialProviders || | ||
| isRefetchingFinalityProviders || | ||
| !isFetchedFinalityProviders | ||
| ) { | ||
| return; | ||
| } | ||
|
|
||
| if ( | ||
| !finalityProvidersRef.current || | ||
| finalityProvidersRef.current.length === 0 | ||
| ) { | ||
| // on initial load, we shuffle the fp result | ||
| const shuffledProviders = [...initialProviders]; | ||
| for (let i = shuffledProviders.length - 1; i > 0; i--) { | ||
| const j = Math.floor(Math.random() * (i + 1)); | ||
| [shuffledProviders[i], shuffledProviders[j]] = [ | ||
| shuffledProviders[j], | ||
| shuffledProviders[i], | ||
| ]; | ||
| } | ||
| finalityProvidersRef.current = shuffledProviders; | ||
| } else { | ||
| const newProvidersMap = new Map<string, FinalityProvider>(); | ||
| initialProviders.forEach((provider) => { | ||
| newProvidersMap.set(provider.btcPk, provider); | ||
| }); | ||
|
|
||
| let hasChanges = false; | ||
| const updatedProviders = finalityProvidersRef.current.map((provider) => { | ||
| const newProvider = newProvidersMap.get(provider.btcPk); | ||
| if (newProvider) { | ||
| newProvidersMap.delete(provider.btcPk); | ||
| if (!shallowCompareFP(provider, newProvider)) { | ||
| hasChanges = true; | ||
| return newProvider; | ||
| } | ||
| } | ||
| return provider; | ||
| }); | ||
|
|
||
| const newProviders = Array.from(newProvidersMap.values()); | ||
| if (newProviders.length > 0 || hasChanges) { | ||
| finalityProvidersRef.current = [...updatedProviders, ...newProviders]; | ||
| } | ||
| } | ||
| }, [initialProviders, isRefetchingFinalityProviders]); | ||
|
|
||
| useEffect(() => { | ||
| if (!finalityProvidersRef.current) { | ||
| setFilteredFinalityProviders(undefined); | ||
| return; | ||
| } | ||
|
|
||
| if (!searchTerm) { | ||
| setFilteredFinalityProviders(finalityProvidersRef.current); | ||
| return; | ||
| } | ||
|
|
||
| const searchTermLower = searchTerm.toLowerCase(); | ||
| const filtered = finalityProvidersRef.current.filter( | ||
| (fp) => | ||
| fp.description?.moniker?.toLowerCase().includes(searchTermLower) || | ||
| fp.btcPk.toLowerCase().includes(searchTermLower), | ||
| ); | ||
| setFilteredFinalityProviders(filtered); | ||
| }, [searchTerm, finalityProvidersRef.current]); | ||
|
|
||
| const handleSearch = (term: string) => { | ||
| setSearchTerm(term); | ||
| }; | ||
|
|
||
| return { | ||
| filteredProviders, | ||
| setFilteredProviders, | ||
| finalityProviders: finalityProvidersRef.current, | ||
| filteredFinalityProviders, | ||
| handleSearch, | ||
| }; | ||
| }; | ||
|
|
||
| const shallowCompareFP = (objA: FinalityProvider, objB: FinalityProvider) => { | ||
| return ( | ||
| objA.btcPk === objB.btcPk && | ||
| objA.commission === objB.commission && | ||
| objA.activeTVLSat === objB.activeTVLSat && | ||
| objA.description?.moniker === objB.description?.moniker && | ||
| objA.description?.website === objB.description?.website | ||
| ); | ||
| }; |
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