@ledgerhq/live-common/lib-es/families/polkadot/react.js

Common ground for the Ledger Live apps

import { useState, useEffect, useMemo, useRef } from "react";
import { getCurrentPolkadotPreloadData, getPolkadotPreloadDataUpdates, } from "@ledgerhq/coin-polkadot/bridge/state";
import useMemoOnce from "../../hooks/useMemoOnce";
import { useBridgeSync } from "../../bridge/react";
const SYNC_REFRESH_RATE = 6000; // 6s - block time
export function usePolkadotPreloadData() {
    const [state, setState] = useState(getCurrentPolkadotPreloadData);
    useEffect(() => {
        const sub = getPolkadotPreloadDataUpdates().subscribe(data => {
            setState(data);
        });
        return () => sub.unsubscribe();
    }, []);
    return state;
}
export const searchFilter = query => validator => {
    const terms = `${validator?.identity ?? ""} ${validator?.address ?? ""}`;
    return terms.toLowerCase().includes(query.toLowerCase().trim());
};
/** Hook to search and sort SR list according to initial votes and query */
export function useSortedValidators(search, validators, nominations, validatorSearchFilter = searchFilter) {
    const initialVotes = useMemoOnce(() => nominations.map(({ address }) => address));
    const sortedVotes = useMemo(() => validators
        .filter(validator => initialVotes.includes(validator.address))
        .concat(validators.filter(validator => !initialVotes.includes(validator.address))), [validators, initialVotes]);
    const sr = useMemo(() => (search ? validators.filter(validatorSearchFilter(search)) : sortedVotes), [search, validators, sortedVotes, validatorSearchFilter]);
    return sr;
}
/**
 * Sync account until "controller" is set - following a first bond.
 *
 * @param {*} account
 */
export function usePolkadotBondLoading(account) {
    const controller = account.polkadotResources?.controller || null;
    const initialAccount = useRef(account);
    const [isLoading, setLoading] = useState(!controller);
    useEffect(() => {
        if (controller) {
            setLoading(false);
        }
    }, [controller]);
    const sync = useBridgeSync();
    useEffect(() => {
        if (!isLoading)
            return;
        const interval = setInterval(() => {
            sync({
                type: "SYNC_ONE_ACCOUNT",
                priority: 10,
                accountId: initialAccount.current.id,
                reason: "polkadot-bond-loading",
            });
        }, SYNC_REFRESH_RATE);
        return () => clearInterval(interval);
    }, [initialAccount, sync, isLoading]);
    return isLoading;
}
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