FM-ds.github.io/assignment_interface.html at main · FM-ds/FM-ds.github.io · GitHub

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<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Drag and Drop Projects</title>
    <style>
        * {
            font-family: 'Helvetica-Neue', sans-serif;
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            display: flex;
            flex-direction: row;
            height: 100vh;
        }

        #sidebar-left,
        #sidebar-right {
            width: 300px;
            padding: 20px;
            background-color: #f8f8f8;
            border: 1px solid #ddd;
            position: fixed;
            top: 0;
            height: 100%;
            overflow-y: auto;
        }

        #sidebar-left {
            left: 0;
        }

        #sidebar-right {
            right: 0;
        }

        #container-wrapper {
            flex: 1;
            margin-left: 300px;
            margin-right: 300px;
            overflow: auto;
        }

        #container {
            padding: 20px;
        }

        /* Styling for the rows */
        .row {
            display: flex;
            flex-direction: row;
            padding: 10px;
            border: 1px solid #ddd;
            margin: 10px 0;
            min-height: 100px;
            justify-content: flex-start;
            /* Left align the contents */
            cursor: pointer;
        }

        .row-highlighted {
            background-color: #e0f7fa;
        }

        /* Styling for the squares (students) */
        .square {
            width: 100px;
            height: 100px;
            margin: 5px;
            padding: 5px;
            display: flex;
            text-align: center;
            justify-content: center;
            align-items: center;
            cursor: grab;
        }

        .highlighted {
            border: 3px solid #000;
        }

        /* Colors for gender borders */
        .male-border {
            border: 3px solid gold;
        }

        .female-border {
            border: 3px solid purple;
        }

        .dragging {
            opacity: 0.5;
        }

        .row.dropzone {
            background-color: #f0f0f0;
            border: 2px dashed #007BFF;
        }

        .row.dropzone.dragging-over {
            background-color: #e0e0ff;
        }

        .download-button {
            margin: 20px;
            padding: 10px 20px;
            background-color: #007BFF;
            color: white;
            border: none;
            cursor: pointer;
        }

        .download-button:hover {
            background-color: #0056b3;
        }
    </style>
</head>

<body>
    <div id="sidebar-left">
        <h2>Student Info</h2>
        <p>Select a student to see their details.</p>
    </div>
    <div id="container-wrapper">
        <div id="container">
            <div id="drop-zone" style="border: 2px dashed #007BFF; padding: 20px; text-align: center;">
                <p>Drag and drop a JSON file here to load student and project data</p>
            </div>

        </div>
        <button class="download-button" onclick="downloadJSON()">Download JSON</button>
        <!-- <button class="download-button" onclick="downloadCSV()">Download CSV</button> -->
    </div>
    <div id="sidebar-right">
        <h2>Project Info</h2>
        <p>Select a project to see its details.</p>
    </div>

    <script>
        // Color palette for rankings (reversed)
        const colorPalette = ["#3288bd", "#66c2a5", "#abdda4", "#e6f598", "#ffffbf", "#fee08b", "#fdae61", "#f46d43", "#d53e4f"];

        // Load JSON data from the file
        const dropZone = document.getElementById('drop-zone');

        dropZone.addEventListener('dragover', (event) => {
            event.preventDefault();
            dropZone.style.backgroundColor = '#e0f7fa'; // Change background when hovering
        });

        dropZone.addEventListener('dragleave', () => {
            dropZone.style.backgroundColor = ''; // Revert background when leaving
        });

        dropZone.addEventListener('drop', (event) => {
            event.preventDefault();
            dropZone.style.backgroundColor = ''; // Revert background when dropped
            const file = event.dataTransfer.files[0];

            if (file && file.type === 'application/json') {
                const reader = new FileReader();
                reader.onload = function (e) {
                    const jsonData = JSON.parse(e.target.result);
                    window.jsonData = jsonData; // Store JSON data globally
                    initializePage(jsonData); // Initialize the page with the loaded JSON
                };
                reader.readAsText(file);
            } else {
                alert('Please drop a valid JSON file.');
            }
        });

        // Helper function to create student squares
        function createStudentDiv(student, projectIndex) {
            const div = document.createElement('div');
            div.classList.add('square');
            div.classList.add(student.gender === 'F' ? 'female-border' : 'male-border');
            div.setAttribute('draggable', 'true');
            div.dataset.student = JSON.stringify(student); // Store student data in the div

            // Set initial state
            div.addEventListener('click', () => showStudentInfo(student, div));

            updateStudentDiv(div, projectIndex);
            return div;
        }

        // Function to update student div based on project ranking
        function updateStudentDiv(div, projectIndex) {
            const student = JSON.parse(div.dataset.student);
            if (Array.isArray(student.rankings) && student.rankings.length > projectIndex) {
                const ranking = student.rankings[projectIndex];
                const colorIndex = ranking <= 8 ? ranking - 1 : 8;
                div.style.backgroundColor = colorPalette[colorIndex];
                div.innerHTML = `${student.name}<br>(Rank: ${ranking})`;
            } else {
                div.innerHTML = `${student.name}`;
            }
        }

        // Helper function to create rows for projects
        function createProjectRow(project) {
            const container = document.createElement('div');

            const title = document.createElement('div');
            title.innerHTML = `<strong>${project.name}</strong>`;
            container.appendChild(title);

            const row = document.createElement('div');
            row.classList.add('row', 'dropzone');
            row.dataset.project = JSON.stringify(project); // Store project data in the row
            row.addEventListener('click', () => showProjectInfo(project, row));
            container.appendChild(row);

            return container;
        }

        // Initialize the page with data from JSON
        function initializePage(jsonData) {
            const container = document.getElementById('container');
            container.dataset.students = JSON.stringify(jsonData.students); // Store students data for download
            // Create project rows
            jsonData.projects.forEach(project => {
                // if (project.running) {
                const projectContainer = createProjectRow(project);
                const row = projectContainer.querySelector('.row');

                // Add students to the project row
                project.students_assigned.forEach(studentId => {
                    const student = jsonData.students.find(student => student.id === studentId);
                    if (student) {
                        const projectIndex = jsonData.projects.indexOf(project); // Get the index of the project
                        row.appendChild(createStudentDiv(student, projectIndex));
                    }
                });

                container.appendChild(projectContainer);
                // }
            });

            // Initialize drag and drop
            initializeDragAndDrop();
        }

        // Function to display student info in the sidebar
        function showStudentInfo(student, studentDiv) {
            document.querySelectorAll('.square').forEach(div => div.classList.remove('highlighted'));
            document.querySelectorAll('.row').forEach(row => row.classList.remove('row-highlighted'));
            studentDiv.classList.add('highlighted');

            const sidebarLeft = document.getElementById('sidebar-left');
            const projectNames = window.jsonData.projects.map(project => project.name);
            sidebarLeft.innerHTML = `
    <h2>Student Info</h2>
    <p><strong>Name:</strong> ${student.name}</p>
    <p><strong>Gender:</strong> ${student.gender}</p>
    <p><strong>Rankings:</strong></p>
    <ul>
      ${student.rankings.map((rank, index) => `<li>${projectNames[index]}: ${rank}</li>`).join('')}
    </ul>
  `;
        }

        // Function to display project info in the right sidebar
        function showProjectInfo(project, projectRow) {
            document.querySelectorAll('.row').forEach(row => row.classList.remove('row-highlighted'));
            document.querySelectorAll('.square').forEach(div => div.classList.remove('highlighted'));
            projectRow.classList.add('row-highlighted');

            const sidebarRight = document.getElementById('sidebar-right');
            const students = project.students_assigned.map(studentId => {
                return window.jsonData.students.find(student => student.id === studentId);
            });
            sidebarRight.innerHTML = `
    <h2>Project Info</h2>
    <p><strong>Name:</strong> ${project.name}</p>
    <p><strong>Assigned Students:</strong></p>
    <ul>
      ${students.map(student => `<li>${student.name} (Gender: ${student.gender})</li>`).join('')}
    </ul>
  `;
        }

        // Drag and Drop functionality
        function initializeDragAndDrop() {
            let draggedElement = null;
            document.addEventListener('dragstart', function (event) {
                if (event.target.classList.contains('square')) {
                    draggedElement = event.target;
                    event.target.classList.add('dragging');
                }
            });

            document.addEventListener('dragend', function (event) {
                if (event.target.classList.contains('square')) {
                    event.target.classList.remove('dragging');
                    draggedElement = null;
                }
            });

            document.querySelectorAll('.dropzone').forEach(zone => {
                zone.addEventListener('dragover', function (event) {
                    event.preventDefault();
                    zone.classList.add('dragging-over');
                });

                zone.addEventListener('dragleave', function (event) {
                    zone.classList.remove('dragging-over');
                });

                zone.addEventListener('drop', function (event) {
                    event.preventDefault();
                    zone.classList.remove('dragging-over');

                    if (draggedElement && draggedElement.classList.contains('square')) {
                        zone.appendChild(draggedElement);

                        // Update the student div according to the new project
                        const project = JSON.parse(zone.dataset.project);
                        const projectIndex = window.jsonData.projects.findIndex(p => p.name === project.name);
                        updateStudentDiv(draggedElement, projectIndex);

                        // Update sidebar if the dragged student is the selected one
                        if (draggedElement.classList.contains('highlighted')) {
                            showStudentInfo(JSON.parse(draggedElement.dataset.student), draggedElement);
                        }

                        // Update project info if the project is the selected one
                        if (zone.parentElement.classList.contains('row-highlighted')) {
                            showProjectInfo(project, zone.parentElement);
                        }
                    }
                });
            });
        }

        // Function to download the updated JSON
        function downloadJSON() {
            const updatedProjects = [];

            document.querySelectorAll('.dropzone').forEach(zone => {
                const project = JSON.parse(zone.dataset.project);
                const studentsAssigned = [];

                zone.querySelectorAll('.square').forEach(square => {
                    const student = JSON.parse(square.dataset.student);
                    studentsAssigned.push(student.id);
                });

                updatedProjects.push({
                    name: project.name,
                    running: project.running,
                    students_assigned: studentsAssigned
                });
            });

            const updatedData = {
                projects: updatedProjects,
                students: JSON.parse(document.getElementById('container').dataset.students)
            };

            const dataStr = "data:text/json;charset=utf-8," + encodeURIComponent(JSON.stringify(updatedData, null, 2));
            const downloadAnchorNode = document.createElement('a');
            downloadAnchorNode.setAttribute("href", dataStr);
            downloadAnchorNode.setAttribute("download", "updated_data.json");
            document.body.appendChild(downloadAnchorNode); // required for firefox
            downloadAnchorNode.click();
            downloadAnchorNode.remove();
        }

        function downloadCSV() {
            const jsonData = window.jsonData;
            if (!jsonData || !jsonData.students || !jsonData.projects) {
                alert("No data available for CSV download.");
                return;
            }

            // Prepare CSV data
            let csvContent = "data:text/csv;charset=utf-8,";
            csvContent += "Student,Project,Rank\n"; // CSV Header

            // Loop through each student and their rankings
            jsonData.students.forEach(student => {
                student.rankings.forEach((rank, projectIndex) => {
                    const projectName = jsonData.projects[projectIndex].name;
                    csvContent += `${student.name},${projectName},${rank}\n`;
                });
            });

            // Encode and trigger CSV download
            const encodedUri = encodeURI(csvContent);
            const downloadLink = document.createElement("a");
            downloadLink.setAttribute("href", encodedUri);
            downloadLink.setAttribute("download", "students_projects_ranks.csv");
            document.body.appendChild(downloadLink); // Required for Firefox
            downloadLink.click();
            document.body.removeChild(downloadLink);
        }

    </script>
</body>

</html>