FundFlowTracker/script.js at main · Sunit0109/FundFlowTracker · GitHub

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let expenses = []
let totalAmount = 0;
const categorySelect = document.getElementById('category_select')
const amountInput = document.getElementById('amount_input')
const InfoInput = document.getElementById('info')
const dateInput = document.getElementById('date_input')
const addBtn = document.getElementById('add_btn')
const expenseTableBody = document.getElementById('expense-table-body')
const totalAmountCell = document.getElementById('total-amount')

addBtn.addEventListener('click', function () {
    const category = categorySelect.value;
    const info = InfoInput.value;
    const amount = Number(amountInput.value);
    const date = dateInput.value;

    if (category === '') {
        alert('please select a category');
        return;
    }
    if (isNaN(amount) || amount <= 0) {
        alert('please enter a valid amount');
        return;
    }
    if (info === '') {
        alert('please enter a valid amount info');
        return;
    }
    if (date === '') {
        alert('please select a date');
        return;
    }
    expenses.push({ category, amount, info, date })
    if (category === 'Income') {
        totalAmount += amount;
    }
    if (category === 'Expense') {
        totalAmount -= amount;
    }
    totalAmountCell.textContent = totalAmount;

    const newRow = expenseTableBody.insertRow();

    const categoryCell = newRow.insertCell();
    const AmountCell = newRow.insertCell();
    const InfoCell = newRow.insertCell();
    const dateCell = newRow.insertCell();
    const deleteCell = newRow.insertCell();

    const deleteBtn = document.createElement('button');
    deleteBtn.textContent = 'Delete';
    deleteBtn.classList.add('delete-btn');
    deleteBtn.addEventListener('click', function () {
        expenses.splice(expenses.indexOf(expense), 1);
        if (category === 'Income') {
            totalAmount -= amount;
        }
        if (category === 'Expense') {
            totalAmount += amount;
        }

        totalAmountCell.textContent = totalAmount;
        expenseTableBody.removeChild(newRow)
    })
    const expense = expenses[expenses.length - 1];
    categoryCell.textContent = expense.category;
    AmountCell.textContent = expense.amount;
    InfoCell.textContent = expense.info;
    dateCell.textContent = expense.date;
    deleteCell.appendChild(deleteBtn);


});
for (const expense of expenses) {
    if (category === 'Income') {
        totalAmount += amount;
    }
    if (category === 'Expense') {
        totalAmount -= amount;
    }
    totalAmountCell.textContent = totalAmount;

    const newRow = expenseTableBody.insertRow();

    const categoryCell = newRow.insertCell();
    const AmountCell = newRow.insertCell();
    const InfoCell = newRow.insertCell();
    const dateCell = newRow.insertCell();
    const deleteCell = newRow.insertCell();

    const deleteBtn = document.createElement('button');
    deleteBtn.textContent = 'Delete';
    deleteBtn.classList.add('delete-btn');
    deleteBtn.addEventListener('click', function () {0
        expenses.splice(expenses.indexOf(expense), 1);
        if (category === 'Income') {
            totalAmount -= amount;
        }
        if (category === 'Expense') {
            totalAmount += amount;
        }

        totalAmountCell.textContent = totalAmount;
        expenseTableBody.removeChild(new Row)
    })
    const expense = expenses[expenses.length - 1];
    categoryCell.textContent = expense.category;
    AmountCell.textContent = expense.amount;
    InfoCell.textContent = expense.info;
    dateCell.textContent = expense.date;
    deleteCell.appendChild(deleteBtn);
}