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fix: add loading spinner and disable create process button during tra… #212

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4da995e
fix: add loading spinner and disable create process button during tra…
charuljain02 Dec 25, 2025
2b5be5d
fix: validate non-empty proposals after trimming
charuljain02 Dec 26, 2025
5b636f2
Update CreateProcessPage.js
charuljain02 Dec 27, 2025
770b100
Update CreateProcessPage.js
charuljain02 Dec 28, 2025
6cc6394
Update CreateProcessPage.js
charuljain02 Dec 29, 2025
a380055
Update CreateProcessPage.js
charuljain02 Dec 30, 2025
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181 changes: 108 additions & 73 deletions anonymousVoting/clientAnonymousVoting/src/components/CreateProcessPage.js
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Original file line number Diff line number Diff line change
Expand Up @@ -2,15 +2,13 @@ import Modal from 'react-bootstrap/Modal';
import Collapse from 'react-bootstrap/Collapse';
import Spinner from 'react-bootstrap/Spinner';
import styles from './CreateProcessPage.module.css';
import {ethers} from 'ethers';
import { ethers } from 'ethers';

//web3 imports
import { deployVotingProcess, deployTestContract, getTestContract } from '../web3/contracts'
import { useState, useEffect, useRef } from 'react';
// web3 imports
import { deployVotingProcess } from '../web3/contracts';
import { useState } from 'react';
import { useNavigate } from 'react-router-dom';



const CreateProcess = () => {
const navigate = useNavigate();

Expand All @@ -20,105 +18,133 @@ const CreateProcess = () => {
const [pending, setPending] = useState(false);

const [show, setShow] = useState(false);
const [open, setOpen] = useState(false);
const [transactionResult, setTransactionResult] = useState(null);

const handleClose = () => {
setShow(false);
navigate('/');
}
const [open, setOpen] = useState(false);
const [transactionResult, setTransactionResult] = useState(null);
};

const isFormValid = () => {
const validProposals = proposals
.split(',')
.map(p => p.trim())
.filter(p => p.length > 0);

return validProposals.length >= 2;
};

const formatProposals = (input) => {
return input
.split(',')
.map(p => p.trim())
.filter(p => p.length > 0)
.map(p => ethers.utils.toUtf8Bytes(p));
};

const refValue = useRef(false);

const createProcess = async (e) => {
e.preventDefault();
console.log("name: ", name);
//format proposals
let proposalArray = formatProposals(proposals);
//check form inputs
if(!isFormValid()){

if (!isFormValid()) {
window.alert("Form is not valid");
return;
}
setPending(true);
refValue.current = true;
//deploy new process contract
const result = await deployVotingProcess(name, description, proposalArray,1000000,1000000);
setTransactionResult(result);

refValue.current = false;
setPending(false);

setShow(true);
}

const isFormValid = () => {
if(proposals < 2)
return false;
return true;
}
try {
setPending(true);

const formatProposals = (input) => {
let proposals = input.split(',');
let array = []
for(let i=0; i < proposals.length; i ++){
array.push(ethers.utils.toUtf8Bytes(proposals[i].trim()));
}
return array;
}

const _formattedProposals = formatProposals(proposals);

const startDate = 1000000;
const endDate = 1000000;

useEffect(() => {
// setPending(!pending);
}, [pending])
const result = await deployVotingProcess(
name,
description,
startDate,
endDate
);

return (
<div >
setTransactionResult(result);
setShow(true);

} catch (err) {
console.error(err);
window.alert("Transaction failed");
} finally {
setPending(false);
}
};

return (
<div>
<div className={styles.createProcess}>
<h1>Create new voting process</h1>
</div>

<form onSubmit={createProcess} className={styles.create}>
<div>
<label>Process name:</label>
<input
<input
type="text"
required
value = {name}
value={name}
onChange={(e) => setName(e.target.value)}
/>
</div>

<div>
<label>Process description:</label>
<input
<input
type="text"
required
value = {description}
value={description}
onChange={(e) => setDescription(e.target.value)}
/>
</div>

<div>
<label>Proposals (separated with ","):</label>
<input
<input
type="text"
required
value = {proposals}
value={proposals}
onChange={(e) => setProposals(e.target.value)}
/>
</div>

<div>
<button className="baseButton">Create new process</button>
<button
className="baseButton"
type="submit"
disabled={pending}
>
{pending ? (
<>
<Spinner
animation="border"
size="sm"
style={{ marginRight: "8px" }}
/>
Creating...
</>
) : (
"Create new process"
)}
</button>
</div>
{refValue.current == true && <div style={{marginTop: "2em"}}>
<Spinner animation="border" />
</div>}
</form>

<Modal show={show} onHide={handleClose}>
<Modal.Header closeButton>
<Modal.Title>Transaction result</Modal.Title>
</Modal.Header>

<Modal.Body>
<p>
Transaction was executed.
</p>
<p>Transaction was executed.</p>

<button
className="baseButton"
onClick={() => setOpen(!open)}
Expand All @@ -127,25 +153,34 @@ const CreateProcess = () => {
>
Transaction details
</button>
{ transactionResult && <Collapse in={open}>
<div id="example-collapse-text" className={styles.collapse}>
<div>
<h4>transaction hash: </h4>
<p>{transactionResult.hash}</p>
</div>
<div>
<h4>nonce: </h4>
<p>{transactionResult.nonce}</p>

{transactionResult && (
<Collapse in={open}>
<div
id="example-collapse-text"
className={styles.collapse}
>
<div>
<h4>transaction hash:</h4>
<p>{transactionResult.hash}</p>
</div>
<div>
<h4>nonce:</h4>
<p>{transactionResult.nonce}</p>
</div>
</div>
</div>
</Collapse>}
</Collapse>
)}
</Modal.Body>

<Modal.Footer>
<button className="baseButton" onClick={handleClose}>Close</button>
<button className="baseButton" onClick={handleClose}>
Close
</button>
</Modal.Footer>
</Modal>
</div>
);
}
export default CreateProcess;
};

export default CreateProcess;