Changed all the components and the App.js file

src/App.js

@@ -2,8 +2,12 @@ import React from 'react';
 
 import 'bootstrap/dist/css/bootstrap.min.css';
 
-//Code to import Budget.js
 import Budget from './components/Budget';
+import Remaining from './components/Remaining'
+import ExpenseTotal from './components/ExpenseTotal';
+import ExpenseList from './components/ExpenseList';
+import ExpenseItem from './components/ExpenseItem';
+import AllocationForm from './components/AllocationForm';
 
 // Add code to import the other components here under
 
@@ -16,27 +20,45 @@ const App = () => {
                 <h1 className='mt-3'>Company's Budget Allocation</h1>
                     <div className='row mt-3'>
                         {
-                            /* Add Budget component here */
+                            /* Budget component here */
+                            <div className='col-sm'>
+                                <Budget />
+                            </div>
                         }        
 
                         {
-                            /* Add Remaining component here*/
+                            /* Remaining component here*/
+                            <div className='col-sm'>
+                                <Remaining />
+                            </div>
                         }        
 
                         {
-                            /* Add ExpenseTotal component here */
+                            /* ExpenseTotal component here */
+                            <div className='col-sm'>
+                                <ExpenseTotal />
+                            </div>
                         }        
 
                         {
-                            /* Add ExpenseList component here */
+                            /* ExpenseList component here */
+                            <div className='col-sm'>
+                                <ExpenseList />
+                            </div>
                         }         
 
                         {
-                            /* Add ExpenseItem component here */
+                            /* ExpenseItem component here */
+                            <div className='col-sm'>
+                                <ExpenseItem />
+                            </div>
                         }        
 
                         {
-                            /* Add AllocationForm component here under */
+                            /* AllocationForm component here under */
+                            <div className='col-sm'>
+                                <AllocationForm />
+                            </div>
                         }        
 
                 </div>

src/components/AllocationForm.js

@@ -1 +1,81 @@
+import React, { useContext, useState } from 'react';
+import { AppContext } from '../context/AppContext';
 
+const AllocationForm = (props) => {
+    const { dispatch,remaining  } = useContext(AppContext);
+
+    const [name, setName] = useState('');
+    const [cost, setCost] = useState('');
+    const [action, setAction] = useState('');
+
+    const submitEvent = () => {
+
+            if(cost > remaining) {
+                alert("The value cannot exceed remaining funds  £"+remaining);
+                setCost("");
+                return;
+            }
+
+        const expense = {
+            name: name,
+            cost: parseInt(cost),
+        };
+        if(action === "Reduce") {
+            dispatch({
+                type: 'RED_EXPENSE',
+                payload: expense,
+            });
+        } else {
+                dispatch({
+                    type: 'ADD_EXPENSE',
+                    payload: expense,
+                });
+            }
+    };
+
+    return (
+        <div>
+            <div className='row'>
+
+            <div className="input-group mb-3" style={{ marginLeft: '2rem' }}>
+                    <div className="input-group-prepend">
+                <label className="input-group-text" htmlFor="inputGroupSelect01">Department</label>
+                  </div>
+                  <select className="custom-select" id="inputGroupSelect01" onChange={(event) => setName(event.target.value)}>
+                        <option defaultValue>Choose...</option>
+                        <option value="Marketing" name="marketing"> Marketing</option>
+                <option value="Sales" name="sales">Sales</option>
+                <option value="Finance" name="finance">Finance</option>
+                <option value="HR" name="hr">HR</option>
+                <option value="IT" name="it">IT</option>
+                <option value="Admin" name="admin">Admin</option>
+                  </select>
+
+                    <div className="input-group-prepend" style={{ marginLeft: '2rem' }}>
+                <label className="input-group-text" htmlFor="inputGroupSelect02">Allocation</label>
+                  </div>
+                  <select className="custom-select" id="inputGroupSelect02" onChange={(event) => setAction(event.target.value)}>
+                        <option defaultValue value="Add" name="Add">Add</option>
+                <option value="Reduce" name="Reduce">Reduce</option>
+                  </select>
+
+                    <input
+                        required='required'
+                        type='number'
+                        id='cost'
+                        value={cost}
+                        style={{ marginLeft: '2rem' , size: 10}}
+                        onChange={(event) => setCost(event.target.value)}>
+                        </input>
+
+                    <button className="btn btn-primary" onClick={submitEvent} style={{ marginLeft: '2rem' }}>
+                        Save
+                    </button>
+                </div>
+                </div>
+
+        </div>
+    );
+};
+
+export default AllocationForm;

src/components/Budget.js

@@ -1 +1,17 @@
+import React, { useContext, useState } from 'react';
+import { AppContext } from '../context/AppContext';
 
+const Budget = () => {
+    const { budget } = useContext(AppContext);
+    const [newBudget, setNewBudget] = useState(budget);
+    const handleBudgetChange = (event) => {
+        setNewBudget(event.target.value);
+    }
+    return (
+        <div className='alert alert-secondary'>
+            <span>Budget: £{budget}</span>
+            <input type="number" step="10" value={newBudget} onChange={handleBudgetChange}></input>
+        </div>
+    );
+};
+export default Budget;

src/components/ExpenseItem.js

@@ -1 +1,38 @@
+import React, { useContext } from 'react';
+import { TiDelete } from 'react-icons/ti';
+import { AppContext } from '../context/AppContext';
 
+const ExpenseItem = (props) => {
+    const { dispatch } = useContext(AppContext);
+
+    const handleDeleteExpense = () => {
+        dispatch({
+            type: 'DELETE_EXPENSE',
+            payload: props.id,
+        });
+    };
+
+    const increaseAllocation = (name) => {
+        const expense = {
+            name: name,
+            cost: 10,
+        };
+
+        dispatch({
+            type: 'ADD_EXPENSE',
+            payload: expense
+        });
+
+    }
+
+    return (
+        <tr>
+            <td>{props.name}</td>
+            <td>£{props.cost}</td>
+            <td><button onClick={event=> increaseAllocation(props.name)}>+</button></td>
+            <td><TiDelete size='1.5em' onClick={handleDeleteExpense}></TiDelete></td>
+        </tr>
+    );
+};
+
+export default ExpenseItem;

src/components/ExpenseList.js

@@ -1 +1,26 @@
+import React, { useContext } from 'react';
+import ExpenseItem from './ExpenseItem';
+import { AppContext } from '../context/AppContext';
 
+const ExpenseList = () => {
+    const { expenses } = useContext(AppContext);
+
+    return (
+        <table className='table'>
+            <thead className='thead-light'>
+                <tr>
+                    <th scope="col">Department</th>
+                    <th scope="col">Allocated Budget</th>
+                    <th scope="col">Increase by 10</th>
+                    <th scope="col">Delete</th>
+                </tr>
+            </thead>
+            <tbody>
+                {expenses.map((expense) => (
+                    <ExpenseItem id={expense.id} key={expense.id} name={expense.name} cost={expense.cost} />
+                ))}
+            </tbody>
+        </table>
+    );
+};
+export default ExpenseList;

src/components/ExpenseTotal.js

@@ -1 +1,14 @@
-
+import React, { useContext } from 'react';
+import { AppContext } from '../context/AppContext';
+const ExpenseTotal = () => {
+    const { expenses } = useContext(AppContext);
+    const totalExpenses = expenses.reduce((total, item) => {
+        return (total += item.cost);
+    }, 0);
+    return (
+        <div className='alert alert-primary'>
+            <span>Spent so far: £{totalExpenses}</span>
+        </div>
+    );
+};
+export default ExpenseTotal;

src/components/Remaining.js

@@ -1 +1,15 @@
-
+import React, { useContext } from 'react';
+import { AppContext } from '../context/AppContext';
+const Remaining = () => {
+    const { expenses, budget } = useContext(AppContext);
+    const totalExpenses = expenses.reduce((total, item) => {
+        return (total = total + item.cost);
+    }, 0);
+    const alertType = totalExpenses > budget ? 'alert-danger' : 'alert-success';
+    return (
+        <div className={`alert ${alertType}`}>
+            <span>Remaining: £{budget - totalExpenses}</span>
+        </div>
+    );
+};
+export default Remaining;