Database-Final-Project/interface.html at main · tingyun1412/Database-Final-Project · GitHub

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<!DOCTYPE html>
<html lang="zh">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>喜好歌單分析</title>
    <script src="https://cdn.jsdelivr.net/npm/chart.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/PapaParse/5.3.0/papaparse.min.js"></script>
    <style>
        #songTable {
            width: 100%;
            border-collapse: collapse;
            margin-top: 10px;
            font-family: Arial, sans-serif;
            font-size: 14px;
            color: #333;
        }

        #songTable th, #songTable td {
            padding: 10px;
            border: 1px solid #ddd;
            text-align: left;
        }

        #songTable th {
            background-color: #f4f4f4;
            font-weight: bold;
        }

        #songTable tr:nth-child(even) {
            background-color: #f9f9f9;
        }

        #songTable tr:hover {
            background-color: #f1f1f1;
        }

        .container {
            display: flex;
            width: 100%;
        }

        .sidebar {
            padding: 10px;
            background-color: #fff;
            box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
            overflow-y: auto;
            border-right: 2px solid #ccc;
        }

        .content {
            flex: 1;
            padding: 20px;
        }

        .buttons {
            margin-bottom: 20px;
        }

        .buttons button {
            margin-right: 10px;
            padding: 8px 16px;
        }

        .chart-container {
            display: flex;
            flex-direction: column;
            align-items: center;
        }

        canvas {
            display: none;
        }
        .filters {
            margin-bottom: 20px;
        }

        .filters label {
            margin-right: 20px;
        }

        .filters button {
            margin-top: 10px;
            padding: 8px 16px;
        }
    </style>
</head>
<body>
    <div class="sidebar">
        <table id="songTable">
            <thead>
                <tr>
                    <th>Song Name</th>
                    <th>Singer Name</th>
                    <th>Language</th>
                    <th>Genre</th>
                    <th>Emotion</th>
                    <th>Album Name</th>
                    <th>Singer Gender</th>
                </tr>
            </thead>
            <tbody>
                {% for row in playlist %}
                <tr>
                    <td>{{ row.song_name }}</td>
                    <td>{{ row.singer_name }}</td>
                    <td>{{ row.song_language }}</td>
                    <td>{{ row.song_genre }}</td>
                    <td>{{ row.song_timing }}</td>
                    <td>{{ row.album_name }}</td>
                    <td>{{ row.singer_gender }}</td>
                </tr>
                {% else %}
                <tr>
                    <td colspan="7">No data available</td>
                </tr>
                {% endfor %}
            </tbody>
        </table>
    </div>

    <div class="content">
        <div class="buttons">
            <button onclick="showAnalysis('language')">語言</button>
            <button onclick="showAnalysis('genre')">風格</button>
            <button onclick="showAnalysis('emotion')">Emo指數</button>
            <button onclick="showAnalysis('artist')">歌手</button>
        </div>

        <div class="chart-container">
            <canvas id="languageChart"></canvas>
            <canvas id="genreChart"></canvas>
            <canvas id="timingChart"></canvas>
            <canvas id="singerChart"></canvas>
        </div>
    </div>
    <div class="filters"></div>
        <h3>選擇過濾條件</h3>
        <div id="filterContainer"></div>
        <button onclick="filterSongs()">篩選</button>
    </div>

    <div class="song-list">
        <h3>篩選後的歌曲</h3>
        <ul id="filteredSongs"></ul>
        <button id="createPlaylistButton" style="display:none;" onclick="createPlaylist()">建立歌單</button>
    </div>
    <script>
        const timingData = {{ timing_count | tojson }};
        const genreData = {{ genre_count | tojson }};
        const languageData = {{ language_count | tojson }};
        const singerData = {{ singer_count | tojson }};
        let currentChart = null; // Track the current chart instance

        // Function to create a pie chart
        function createPieChart(ctx, data, label) {
            // Destroy any existing chart before creating a new one
            if (currentChart) {
                currentChart.destroy();
            }

            // Create the chart
            currentChart = new Chart(ctx, {
                type: 'pie',
                data: {
                    labels: Object.keys(data),
                    datasets: [{
                        data: Object.values(data),
                        backgroundColor: ['#FF6384', '#36A2EB', '#FFCE56', '#FF5733', '#FF8C00'],
                    }]
                },
                options: {
                    responsive: true,
                    plugins: {
                        legend: {
                            position: 'top',
                        },
                        tooltip: {
                            callbacks: {
                                label: function(tooltipItem) {
                                    return tooltipItem.label + ': ' + tooltipItem.raw + ' songs';
                                }
                            }
                        }
                    }
                }
            });
        }

        // Display analysis chart
        function showAnalysis(type) {
            // Hide all canvases
            document.querySelectorAll('canvas').forEach(canvas => {
                canvas.style.display = 'none';
            });

            let ctx, data;
            if (type === 'language') {
                ctx = document.getElementById('languageChart');
                data = languageData;
            } else if (type === 'genre') {
                ctx = document.getElementById('genreChart');
                data = genreData;
            } else if (type === 'emotion') {
                ctx = document.getElementById('timingChart');
                data = timingData;
            } else if (type === 'artist') {
                ctx = document.getElementById('singerChart');
                data = singerData;
            }

            if (ctx && data) {
                ctx.style.display = 'block';
                createPieChart(ctx, data, type);
            } else {
                alert('No data available for this category.');
            }
        }
        function getUniqueValues(columnIndex) {
            const rows = document.querySelectorAll("#songTable tbody tr");
            const values = new Set();
            rows.forEach(row => {
                const cell = row.cells[columnIndex];
                if (cell) values.add(cell.textContent.trim());
            });
            return Array.from(values);
        }

        function populateFilters() {
            const filterContainer = document.getElementById("filterContainer");
            const columns = ["Singer","Language", "Genre", "Timing"];
            columns.forEach((col, index) => {
                const uniqueValues = getUniqueValues(index + 1); // Skip first two columns (Song Name, Singer Name)
                const filterGroup = document.createElement("div");
                filterGroup.innerHTML = `<strong>${col}:</strong>`;
                uniqueValues.forEach(value => {
                    const label = document.createElement("label");
                    label.innerHTML = `<input type="checkbox" class="filter" data-type="${col.toLowerCase()}" value="${value}"> ${value}`;
                    filterGroup.appendChild(label);
                });
                filterContainer.appendChild(filterGroup);
            });
        }

        function filterSongs() {
            const selectedFilters = { language: [], singer: [], genre: [], timing: [] };
            document.querySelectorAll(".filter:checked").forEach(checkbox => {
                const type = checkbox.getAttribute("data-type");
                const value = checkbox.value;
                selectedFilters[type].push(value);
            });

            const rows = document.querySelectorAll("#songTable tbody tr");
            const filteredSongs = [];
            rows.forEach(row => {
                const cells = row.cells;
                const song = {
                    song_name: cells[0].textContent.trim(),
                    singer_name: cells[1].textContent.trim(),
                    language: cells[2].textContent.trim(),
                    genre: cells[3].textContent.trim(),
                    timing: cells[4].textContent.trim()
                };

                const matchesFilter = (!selectedFilters.language.length || selectedFilters.language.includes(song.language)) &&
                                      (!selectedFilters.singer.length || selectedFilters.singer.includes(song.singer_name)) &&
                                      (!selectedFilters.genre.length || selectedFilters.genre.includes(song.genre)) &&
                                      (!selectedFilters.timing.length || selectedFilters.timing.includes(song.timing));
                if (matchesFilter) filteredSongs.push(song.song_name);
            });

            const filteredSongsList = document.getElementById("filteredSongs");
            filteredSongsList.innerHTML = "";
            filteredSongs.forEach(song => {
                const li = document.createElement("li");
                li.textContent = song;
                filteredSongsList.appendChild(li);
            });

            const createPlaylistButton = document.getElementById("createPlaylistButton");
            createPlaylistButton.style.display = filteredSongs.length ? "block" : "none";
        }

        function createPlaylist() {
            const selectedSongs = [];
            document.querySelectorAll("#filteredSongs li").forEach(item => {
                selectedSongs.push(item.textContent);
            });

            localStorage.setItem("playlist", JSON.stringify(selectedSongs));
            window.location.href = "newplaylist.html";
        }

        // Initialize filters
        document.addEventListener("DOMContentLoaded", populateFilters);
    </script>
</body>
</html>