130 lines
4.6 KiB
TypeScript
130 lines
4.6 KiB
TypeScript
"use client";
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import { useEffect, useState } from "react";
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import { Address as AddressType, createWalletClient, http, parseEther } from "viem";
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import { hardhat } from "viem/chains";
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import { useAccount } from "wagmi";
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import { BanknotesIcon } from "@heroicons/react/24/outline";
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import { Address, AddressInput, Balance, EtherInput } from "~~/components/scaffold-eth";
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import { useTransactor } from "~~/hooks/scaffold-eth";
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import { notification } from "~~/utils/scaffold-eth";
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// Account index to use from generated hardhat accounts.
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const FAUCET_ACCOUNT_INDEX = 0;
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const localWalletClient = createWalletClient({
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chain: hardhat,
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transport: http(),
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});
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/**
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* Faucet modal which lets you send ETH to any address.
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*/
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export const Faucet = () => {
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const [loading, setLoading] = useState(false);
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const [inputAddress, setInputAddress] = useState<AddressType>();
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const [faucetAddress, setFaucetAddress] = useState<AddressType>();
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const [sendValue, setSendValue] = useState("");
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const { chain: ConnectedChain } = useAccount();
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const faucetTxn = useTransactor(localWalletClient);
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useEffect(() => {
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const getFaucetAddress = async () => {
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try {
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const accounts = await localWalletClient.getAddresses();
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setFaucetAddress(accounts[FAUCET_ACCOUNT_INDEX]);
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} catch (error) {
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notification.error(
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<>
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<p className="font-bold mt-0 mb-1">Cannot connect to local provider</p>
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<p className="m-0">
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- Did you forget to run <code className="italic bg-base-300 text-base font-bold">yarn chain</code> ?
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</p>
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<p className="mt-1 break-normal">
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- Or you can change <code className="italic bg-base-300 text-base font-bold">targetNetwork</code> in{" "}
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<code className="italic bg-base-300 text-base font-bold">scaffold.config.ts</code>
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</p>
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</>,
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);
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console.error("⚡️ ~ file: Faucet.tsx:getFaucetAddress ~ error", error);
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}
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};
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getFaucetAddress();
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}, []);
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const sendETH = async () => {
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if (!faucetAddress || !inputAddress) {
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return;
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}
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try {
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setLoading(true);
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await faucetTxn({
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to: inputAddress,
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value: parseEther(sendValue as `${number}`),
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account: faucetAddress,
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});
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setLoading(false);
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setInputAddress(undefined);
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setSendValue("");
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} catch (error) {
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console.error("⚡️ ~ file: Faucet.tsx:sendETH ~ error", error);
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setLoading(false);
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}
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};
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// Render only on local chain
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if (ConnectedChain?.id !== hardhat.id) {
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return null;
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}
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return (
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<div>
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<label htmlFor="faucet-modal" className="btn btn-primary btn-sm font-normal gap-1">
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<BanknotesIcon className="h-4 w-4" />
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<span>Faucet</span>
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</label>
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<input type="checkbox" id="faucet-modal" className="modal-toggle" />
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<label htmlFor="faucet-modal" className="modal cursor-pointer">
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<label className="modal-box relative">
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{/* dummy input to capture event onclick on modal box */}
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<input className="h-0 w-0 absolute top-0 left-0" />
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<h3 className="text-xl font-bold mb-3">Local Faucet</h3>
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<label htmlFor="faucet-modal" className="btn btn-ghost btn-sm btn-circle absolute right-3 top-3">
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✕
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</label>
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<div className="space-y-3">
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<div className="flex space-x-4">
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<div>
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<span className="text-sm font-bold">From:</span>
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<Address address={faucetAddress} onlyEnsOrAddress />
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</div>
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<div>
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<span className="text-sm font-bold pl-3">Available:</span>
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<Balance address={faucetAddress} />
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</div>
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</div>
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<div className="flex flex-col space-y-3">
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<AddressInput
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placeholder="Destination Address"
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value={inputAddress ?? ""}
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onChange={value => setInputAddress(value as AddressType)}
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/>
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<EtherInput placeholder="Amount to send" value={sendValue} onChange={value => setSendValue(value)} />
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<button className="h-10 btn btn-primary btn-sm px-2 rounded-full" onClick={sendETH} disabled={loading}>
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{!loading ? (
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<BanknotesIcon className="h-6 w-6" />
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) : (
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<span className="loading loading-spinner loading-sm"></span>
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)}
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<span>Send</span>
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</button>
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</div>
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</div>
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</label>
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</label>
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</div>
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);
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};
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