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

Common ground for the Ledger Live apps

import { useEffect, useMemo, useState } from "react";
import { bakers } from "@ledgerhq/coin-tezos/network/index";
export function useBakers(whitelistAddresses) {
    const [whitelistedBakers, setWhitelistedBakers] = useState(() => bakers.listBakersWithDefault(whitelistAddresses));
    useEffect(() => {
        bakers.listBakers(whitelistAddresses).then(setWhitelistedBakers);
    }, [whitelistAddresses]);
    return whitelistedBakers;
}
export function useDelegation(account) {
    const [delegation, setDelegation] = useState(() => bakers.getAccountDelegationSync(account));
    useEffect(() => {
        let cancelled = false;
        bakers.loadAccountDelegation(account).then(delegation => {
            if (cancelled)
                return;
            setDelegation(delegation);
        });
        return () => {
            cancelled = true;
        };
    }, [account]);
    return delegation;
}
export function useBaker(addr) {
    const [baker, setBaker] = useState(() => bakers.getBakerSync(addr));
    bakers.loadBaker(addr).then(setBaker);
    return baker;
}
//  select a random baker for the mount time (assuming bakers length don't change)
export function useRandomBaker(bakers) {
    const randomBakerIndex = useMemo(() => {
        const nonFullBakers = bakers.filter(b => b.capacityStatus !== "full");
        if (nonFullBakers.length > 0) {
            // if there are non full bakers, we pick one
            const i = Math.floor(Math.random() * nonFullBakers.length);
            return bakers.indexOf(nonFullBakers[i]);
        }
        // fallback on random between only full bakers
        return Math.floor(Math.random() * bakers.length); // for perf, we only want to re-calc on bakers.length changes
        // eslint-disable-next-line react-hooks/exhaustive-deps
    }, [bakers.length]);
    return bakers[randomBakerIndex];
}
export function useStakingPositions(account) {
    const delegation = useDelegation(account);
    return useMemo(() => {
        if (account.type !== "Account" || !delegation?.address)
            return [];
        return [
            {
                uid: account.freshAddress,
                address: account.freshAddress,
                delegate: delegation.address,
                state: "active",
                asset: { type: "native" },
                amount: BigInt(account.balance.toString()),
            },
        ];
    }, [account, delegation]);
}
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