TuckShopAppWebbased/dashboard_parent.php at main · jacklee-code/TuckShopAppWebbased · GitHub

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<?php
    include_once "backend/session.php";
    header('X-Frame-Options: SAMEORIGIN');

    if (!isset($_SESSION['userid']) || $_SESSION['usertype'] != 2) {
        echo "<script>location.href = 'login_main.php';</script>";
    }
?>

<html>
<head>
    <meta charset="UTF-8">
    <title>Dashboard</title>
    <link rel="shortcut icon" type="image/icon" href="assets/logo/favicon.png"/>


</head>

<body>

<style>
    #actions {
        display: flex;
        justify-content: flex-end;
        margin-top: 20px;
        right: 10%; /* 100% - 70% = 30% */
        position: absolute;
    }

    #btnPurchase {
        margin-left: 10px;
        font-size: 20px;
        padding: 10px;
    }

    #btnPurchase, #btnReset {
        background-color: #4CAF50; /* Green */
        border: none;
        color: white;
        text-align: center;
        text-decoration: none;
        font-size: 16px;
        transition-duration: 0.4s;
        cursor: pointer;
    }

    #btnPurchase:hover, #btnReset:hover {
        background-color: white;
        color: black;
        border: 2px solid #4CAF50;
    }

    table#linkedlist input[type='number'] {
        text-align: center;
    }

    .sortable {
        cursor: pointer;
        background-image: url('assets/images/no_sort.png');
        background-repeat: no-repeat;
        background-position: calc(100% - 30px) center;
        background-size: 30px 30px;
    }

    .sortable.asc {
        background-image: url('assets/images/asc.png');
        background-repeat: no-repeat;

    }

    .sortable.desc {
        background-image: url('assets/images/desc.png');
        background-repeat: no-repeat;

    }

    table#linkedlist {
        margin-left: auto;
        margin-right: auto;
        margin-top: 10px;
        width: 80%;
        border: 1px solid black;
    }

    table#linkedlist th {
        background-color: gray;
        color: white;
        font-weight: bold;
        height: 50px;
        font-size: 20px;
        text-align: center;
    }

    table#linkedlist td {
        text-align: center;
        color: black;
        font-weight: bold;
        background-color: lightyellow;
        border: 1px solid black;
        border-collapse: collapse;
        padding: 10px;
        margin: 10px;
        width: 20%;
        height: 50px;
        font-size: 20px;
    }


    table#linkedlist th.sortable:hover {
        color: #007BFF; /* Change the text color to blue when hovering */
        background-color: #ddd; /* Change the background color to light gray when hovering */
    }

    .unlink-button {
        border-radius: 12px; /* This will make the button have round corners */
        padding: 10px 20px; /* This will make the button bigger */
        display: flex; /* This will align the icon and the text side by side */
        align-items: center; /* This will vertically center the icon and the text */
        justify-content: center; /* This will horizontally center the icon and the text */
        margin: auto; /* This will center the button in the cell */
    }

    .unlink-button:hover {
        background-color: #ddd; /* This will change the background color to light gray when hovering */
        cursor: pointer; /* This will change the cursor to a hand pointer when hovering */
    }

    .rubbish-bin-icon {
        height: 20px; /* Adjust this value to change the size of the icon */
        width: 20px; /* Adjust this value to change the size of the icon */
        margin-right: 5px; /* This will add some space between the icon and the text */
    }

    .topup-button {
        border-radius: 12px; /* This will make the button have round corners */
        padding: 10px 20px; /* This will make the button bigger */
        display: flex; /* This will align the icon and the text side by side */
        align-items: center; /* This will vertically center the icon and the text */
        justify-content: center; /* This will horizontally center the icon and the text */
        margin: auto; /* This will center the button in the cell */
    }

    .topup-button:hover {
        background-color: #ddd; /* This will change the background color to light gray when hovering */
        cursor: pointer; /* This will change the cursor to a hand pointer when hovering */
    }

    .topup-icon {
        height: 20px; /* Adjust this value to change the size of the icon */
        width: 20px; /* Adjust this value to change the size of the icon */
        margin-right: 5px; /* This will add some space between the icon and the text */
    }

</style>

<?php

    include_once("backend/getStudentList.php");

    $studentList = getStudents();
    echo "<div id='table-container'>";
    echo "<table id='linkedlist'>";
    echo "<tr>";
    echo "<th>Username</th>";
    echo "<th class='sortable' onclick='sortTable(1)'>Full Name</th>";
    echo "<th class='sortable' onclick='sortTable(2)'>Balance ($)</th>";
    echo "<th>Top Up</th>";
    echo "<th>Unlink</th>";
    echo "</tr>";
    foreach($studentList as $student) {
        echo "<tr>";
        echo "<td id='row-username'>" . $student['username'] . "</td>";
        echo "<td id='row-fullname'>" . $student['name'] . "</td>";
        echo "<td id='row-balance'>" . $student['balance'];
        echo "<td><button class='topup-button' onclick='topup(" . $student['id'] . ")'><img src='assets/images/topup.png' class='topup-icon'> Top Up</button></td>";
        echo "<td><button class='unlink-button' onclick='unlink(" . $student['id'] . ")'><img src='assets/images/unlink.png' class='rubbish-bin-icon'> Unlink</button></td>";
        echo "</tr>";
    }
    echo "</table>";

    echo "<div id='actions'>";
    echo "<button id='btnPurchase' onclick='newlink()'>+ Link to a student</button>";
    echo "</div>";
    echo "</div>";
?>

<script>
    const numbericColumns = [2];
    const tableName = "linkedlist";
    var defaultDir = "asc";
    var lastSortedColumn = 1;

    function sortTable(n, dir = null) {
        var table, rows, i, x, y, shouldSwitch;
        table = document.getElementById(tableName);
        var switching = true;
        lastSortedColumn = n;

        // if dir is not null, set the default direction to dir
        if (dir != null) {
            if (dir == "refresh") {
                defaultDir = defaultDir === "asc" ? "asc" : "desc";
            } else {
                defaultDir = dir === "asc" ? "asc" : "desc";

            }
        }  else {
            var ths = table.getElementsByTagName("th");
            for (var i = 0; i < ths.length; i++) {
                // head has class asc or desc
                if (ths[i].classList.contains("asc") || ths[i].classList.contains("desc")) {
                    // defualt direction is the opposite of the current direction
                    defaultDir = ths[i].classList.contains("asc") ? "desc" : "asc";
                }
            }
        }

        while (switching) {
            switching = false;
            rows = table.rows;

            // Loop to go through all rows
            for (i = 1; i < (rows.length - 1); i++) {
                shouldSwitch = false;

                // Compare the two adjacent rows
                x = rows[i].getElementsByTagName("TD")[n];
                y = rows[i + 1].getElementsByTagName("TD")[n];

                // Check if the two rows should switch place
                if (numbericColumns.includes(n)) {
                    if (defaultDir == "asc") {
                        if (parseFloat(x.innerHTML) > parseFloat(y.innerHTML)) {
                            shouldSwitch = true;
                            break;
                        }
                    } else {
                        if (parseFloat(x.innerHTML) < parseFloat(y.innerHTML)) {
                            shouldSwitch = true;
                            break;
                        }
                    }
                } else {
                    if (defaultDir == "asc") {
                        if (x.innerHTML.toLowerCase() > y.innerHTML.toLowerCase()) {
                            shouldSwitch = true;
                            break;
                        }
                    } else {
                        if (x.innerHTML.toLowerCase() < y.innerHTML.toLowerCase()) {
                            shouldSwitch = true;
                            break;
                        }
                    }
                }
            }
            if (shouldSwitch) {
                // If a switch is needed, perform the switch and mark that a switch has been done
                rows[i].parentNode.insertBefore(rows[i + 1], rows[i]);
                switching = true;
            }
        }

        // insert a class (asc or desc) to the current column header [n] and remove the asc or desc class from other column headers after sorting
        var headers = table.getElementsByTagName("TH");
        for (i = 0; i < headers.length; i++) {
            headers[i].classList.remove("asc");
            headers[i].classList.remove("desc");
        }
        headers[n].classList.add(defaultDir);

    }

    sortTable(lastSortedColumn);

    function topup(studentid) {
        var amount = window.prompt('Enter the amount to top up:', '');
        if (amount !== null) {
            if (isNaN(amount) || amount <= 0) {
                alert('Invalid amount.');
            } else {
                var xhr = new XMLHttpRequest();
                xhr.open('POST', 'backend/topup.php', true);
                xhr.setRequestHeader('Content-type', 'application/x-www-form-urlencoded');
                xhr.send('targetid=' + studentid + '&amount=' + amount);
                xhr.onreadystatechange = function () {
                    if (xhr.readyState == 4 && xhr.status == 200) {
                        location.reload();
                    } else if (xhr.readyState == 4 && xhr.status != 200) {
                        alert('Top up failed. \nReason: ' + xhr.responseText);
                    }
                }
            }
        }
    }

    function newlink() {
        var studentid = window.prompt('Enter the student username:', '');
        var password = window.prompt('Enter the student password:', '');
        if (studentid !== null && password !== null) {
            if (studentid.length == 0 || password.length == 0) {
                alert('Student Username and password are required.');
            } else {
                var xhr = new XMLHttpRequest();
                xhr.open('POST', 'backend/newlink.php', true);
                xhr.setRequestHeader('Content-type', 'application/x-www-form-urlencoded');
                xhr.send('username=' + studentid + '&password=' + password);
                xhr.onreadystatechange = function () {
                    if (xhr.readyState == 4 && xhr.status == 200) {
                        location.reload();
                    } else if (xhr.readyState == 4 && xhr.status != 200) {
                        alert('Link failed. \nReason: ' + xhr.responseText);
                    }
                }
            }
        }
    }

    function unlink(studentid) {
        // pop up a confirmation dialog
        if (confirm("Are you sure you want to unlink this student?")) {
            var xhr = new XMLHttpRequest();
            xhr.open('POST', 'backend/unlink.php', true);
            xhr.setRequestHeader('Content-type', 'application/x-www-form-urlencoded');
            xhr.send('studentid=' + studentid);
            xhr.onreadystatechange = function () {
                if (xhr.readyState == 4 && xhr.status == 200) {
                    location.reload();
                } else if (xhr.readyState == 4 && xhr.status != 200) {
                    alert('Unlink failed. \nReason: ' + xhr.responseText);
                }
            }
        }
    }

</script>


</body>

</html>