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added disconnect button #17

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added disconnect button #17

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50 changes: 37 additions & 13 deletions src/components/Connect/Connect.tsx
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Original file line number Diff line number Diff line change
Expand Up @@ -43,11 +43,16 @@ export const Connect: React.FC<{
}
}, []);

const refreshProvider = (eth: Eip1193Provider) => {
const p = new BrowserProvider(eth);
setProvider(p);
return p;
};
const initializeProvider = useCallback(() => {
const eth = window.ethereum;
if (eth) {
const p = new BrowserProvider(eth);
setProvider(p);
return p;
}
setError('No wallet has been found');
return null;
}, []);

useEffect(() => {
const eth = window.ethereum;
Expand All @@ -56,25 +61,33 @@ export const Connect: React.FC<{
return;
}

const p = refreshProvider(eth);
const p = initializeProvider();

p.send('eth_accounts', [])
p
?.send('eth_accounts', [])
.then(async (accounts: string[]) => {
refreshAccounts(accounts);
await refreshNetwork();
})
.catch(() => {
// Do nothing
});

eth.on('accountsChanged', refreshAccounts);
eth.on('chainChanged', refreshNetwork);
}, []);

return () => {
eth.removeListener('accountsChanged', refreshAccounts);
eth.removeListener('chainChanged', refreshNetwork);
};
}, [initializeProvider, refreshNetwork]);

const connect = async () => {
if (!provider) {
const p = provider || initializeProvider(); // Reinitialize provider if null
if (!p) {
return;
}
const accounts: string[] = await provider.send('eth_requestAccounts', []);
const accounts: string[] = await p.send('eth_requestAccounts', []);

if (accounts.length > 0) {
setAccount(accounts[0]);
Expand All @@ -85,6 +98,13 @@ export const Connect: React.FC<{
}
};

const disconnect = () => {
setAccount('');
setConnected(false);
setValidNetwork(false);
setProvider(null); // Reset provider
};

const switchNetwork = useCallback(async () => {
try {
await window.ethereum.request({
Expand Down Expand Up @@ -125,9 +145,13 @@ export const Connect: React.FC<{

const connectInfos = (
<div className="Connect__info">
{!connected && <button onClick={connect}>Connect your wallet</button>}
{connected && (
<div className="Connect__account">Connected with {account}</div>
{!connected ? (
<button onClick={connect}>Connect your wallet</button>
) : (
<div className="Connect__account">
<span>Connected with {account}</span>
<button onClick={disconnect}>Disconnect</button>
</div>
)}
</div>
);
Expand Down