using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Globalization;
using System.IO;
using System.Linq;
using System.Runtime.Remoting.Contexts;
using System.Text;
using System.Threading.Tasks;
using System.Data;
using System.Data.SQLite;  // 確保添加了這個命名空間
using System.Data.SqlClient;  // 对于SQL Server
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Shapes;
using Xceed.Wpf.Toolkit;
using Xceed.Wpf.Controls;
using System.Net.Sockets;
using System.Runtime.InteropServices;
using System.Runtime.InteropServices.ComTypes;
using Microsoft.Win32;  // 確保這行代碼存在
using System.ComponentModel;
using Pinyin4net;
using Pinyin4net.Format;
using Microsoft.International.Converters.PinYinConverter;
using Microsoft.International.Converters.TraditionalChineseToSimplifiedConverter;
using System.Reflection;
using ExcelDataReader;
using System.Text.RegularExpressions;
using System.Windows.Threading;
using System.Windows.Forms;

namespace Karaoke_Kingpin
{
    /// <summary>
    /// Index.xaml 的互動邏輯
    /// </summary>
    /// 

    public partial class Index : Window
    {
        //private bool isInitialLoad = true; // 默认为true，表示处于初始化加载阶段
        private bool isFormFullyLoaded = false;
        private TcpClient client;
        private NetworkStream stream;
        private ObservableCollection<SongData> _songs = new ObservableCollection<SongData>();
        private List<string> pcs = new List<string>();
        public ObservableCollection<string> MarqueeItems { get; set; }
        private DispatcherTimer announcementTimer;

        // 添加這些常數定義
        private const int MaxSendAttempts = 3;  // 最大重試次數
        private const int DelayBetweenSendAttempts = 1000;  // 重試間隔（毫秒）

        // 添加一個鎖對象和發送狀態標誌
        private static readonly object sendLock = new object();
        private bool isSending = false;
        private int currentAnnouncementIndex = 0;  // 加入這個變量的定義

        [DllImport("kernel32.dll", SetLastError = true)]
        [return: MarshalAs(UnmanagedType.Bool)]
        static extern bool AllocConsole();
        
        // 添加一個新的類來保存房間狀態信息
        private class RoomState
        {
            public string PcName { get; set; }
            public string RoomNumber { get; set; }
            public string Status { get; set; }
            public string Time { get; set; }
            public string ServiceStatus { get; set; }
        }

        public Index()
        {
            InitializeComponent();
            AllocConsole(); // 取消註釋這行來打開控制台

            //InitializeConnection();
            LoadSongsFromDatabase();

            //// 显式设置默认选中项
            //themeSelector.SelectedIndex = 0; // 或其他逻辑来选择默认项

            //// 将事件处理器附加到事件上
            //this.themeSelector.SelectionChanged += themeSelector_SelectionChanged;
            this.DataContext = new MainViewModel();

            LoadRoomsFromTextFile();
            PopulateRoomNumbersComboBox();
            PopulateHostComboBox();

            // 读取文件内容并绑定到 ListBox
            LoadMarqueeItems();

            // Register the event handler for the Add Data button
            AddDataButton.Click += btnAddData_Click;

            // 初始化并启动定时器
            InitializeAnnouncementTimer();
        }

        private void InitializeAnnouncementTimer()
        {
            announcementTimer = new DispatcherTimer();
            announcementTimer.Interval = TimeSpan.FromSeconds(30);
            announcementTimer.Tick += async (sender, args) =>
            {
                try
                {
                    await SendNextAnnouncement();
                }
                catch (Exception ex)
                {
                    Console.WriteLine($"定時發送失敗: {ex.Message}");
                    LogToFile($"定時發送失敗: {ex.Message}");
                    isSending = false;
                }
            };
        }

        private void btnAddData_Click(object sender, EventArgs e)
        {
            string target = RoomNumbersComboBox.SelectedItem.ToString();
            string color = ((ComboBoxItem)ColorComboBox.SelectedItem).Content.ToString();
            string content = ContentTextBox.Text;

            // Regular expression to check if content starts with {target}({color})-
            string pattern = $@"^{Regex.Escape(target)}\({Regex.Escape(color)}\)-";
            if (!Regex.IsMatch(content, pattern))
            {
                // If content does not start with the required format, add the prefix
                content = $"{target}({color})-{content}";
            }

            // Check if the new entry already exists
            if (!MarqueeItems.Contains(content))
            {
                // Add to marquee data list
                MarqueeItems.Add(content);

                // Append newEntry to marquee_items.txt
                string filePath = @"outputfile\txt\marquee_items.txt";
                using (StreamWriter sw = File.AppendText(filePath))
                {
                    sw.WriteLine(content);
                }
            }
            else
            {
                System.Windows.MessageBox.Show("該項目已經存在。");
            }

            // Clear input box
            //ContentTextBox.Text = string.Empty;
        }

        private void btnSaveData_Click(object sender, EventArgs e)
        {
            string target = RoomNumbersComboBox.SelectedItem.ToString();
            string color = ((ComboBoxItem)ColorComboBox.SelectedItem).Content.ToString();
            string content = ContentTextBox.Text;

            // Regular expression to check if content starts with {target}({color})-
            string prefixPattern = $@"^{Regex.Escape(target)}\({Regex.Escape(color)}\)-";
            string entryPattern = $@"^{Regex.Escape(target)}\(.+\)-(.+)";

            // Check if content starts with the required format
            if (!Regex.IsMatch(content, prefixPattern))
            {
                content = $"{target}({color})-{content}";
            }

            // Find the existing entry by checking the suffix part of the content
            string existingEntry = MarqueeItems.FirstOrDefault(item =>
                Regex.IsMatch(item, entryPattern) && Regex.Match(item, entryPattern).Groups[1].Value == content);

            if (existingEntry != null)
            {
                int index = MarqueeItems.IndexOf(existingEntry);
                MarqueeItems[index] = content;
            }
            else
            {
                MarqueeItems.Add(content);
            }

            // Save the updated list to marquee_items.txt
            string filePath = @"outputfile\txt\marquee_items.txt";
            File.WriteAllLines(filePath, MarqueeItems);

            // Clear input box
            //ContentTextBox.Text = string.Empty;
        }


        private void btnDeleteData_Click(object sender, EventArgs e)
        {
            if (MarqueeListBox.SelectedItem != null)
            {
                string selectedItem = MarqueeListBox.SelectedItem.ToString();
                MarqueeItems.Remove(selectedItem);

                // Update marquee_items.txt
                string filePath = @"outputfile\txt\marquee_items.txt";
                var lines = File.ReadAllLines(filePath).ToList();
                lines.Remove(selectedItem);
                File.WriteAllLines(filePath, lines);
            }
            else
            {
                System.Windows.MessageBox.Show("請先選擇一個項目來刪除。");
            }
        }

        private void LoadRoomsFromTextFile()
        {
            var lines = File.ReadAllLines(@"outputfile\txt\room.txt");

            foreach (var line in lines)
            {
                var parts = line.Split(';');
                if (parts.Length != 2) continue;

                string[] pcArray = parts[1].Split(',');

                foreach (var pc in pcArray)
                {
                    if (pc.Trim().StartsWith("pc"))
                    {
                        pcs.Add(pc.Trim());
                    }
                }
            }
        }

        private void CheckBox_Checked_Unchecked(object sender, RoutedEventArgs e)
        {
            // 处理复选框的选中和取消选中逻辑，例如更新UI或发送数据等
            System.Windows.Controls.CheckBox checkBox = sender as System.Windows.Controls.CheckBox;
            if (checkBox.IsChecked == true)
            {
                // 例如，发送开启的命令
            }
            else
            {
                // 例如，发送关闭的命令
            }
        }

        private void PopulateRoomNumbersComboBox()
        {
            // Create a new list and add the "全部" option at the beginning
            var allPcs = new List<string> { "全部" };
            allPcs.AddRange(pcs);

            // Create a new list for display
            var displayPcs = new List<string>(allPcs);

            // Modify displayPcs to "0" + the last three characters of allPcs
            for (int i = 1; i < displayPcs.Count; i++)
            {
                if (displayPcs[i].Length >= 3)
                {
                    displayPcs[i] = "0" + displayPcs[i].Substring(displayPcs[i].Length - 3);
                }
                else
                {
                    displayPcs[i] = "0" + displayPcs[i];
                }
            }

            RoomNumbersComboBox.ItemsSource = displayPcs;
        }

        private void RemoveItemFromMarqueeFile(string item, string filePath)
        {
            var lines = File.ReadAllLines(filePath).ToList();
            bool itemFound = false;

            for (int i = 0; i < lines.Count; i++)
            {
                if (lines[i].Contains(item))
                {
                    lines.RemoveAt(i); // 删除整行
                    itemFound = true;
                    break; // 假设每个项目只出现一次，找到即删除
                }
            }

            if (itemFound)
            {
                File.WriteAllLines(filePath, lines);
            }
        }

        private void AddItemToMarqueeFile(string item, string filePath)
        {
            using (StreamWriter sw = File.AppendText(filePath))
            {
                sw.WriteLine(item);
            }
        }

        private void PopulateHostComboBox()
        {
            hostComboBox.ItemsSource = pcs;
        }

        private void HostComboBox_SelectionChanged(object sender, SelectionChangedEventArgs e)
        {
            if (hostComboBox.SelectedItem != null)
            {
                string selectedHost = hostComboBox.SelectedItem.ToString();
                DisplayLogFile(selectedHost, "songerror.txt"); // 默认显示点歌错误日志
            }
        }

        private void LoadMarqueeItems()
        {
            MarqueeItems = new ObservableCollection<string>();
            string filePath = "txt/marquee_items.txt";

            if (File.Exists(filePath))
            {
                var lines = File.ReadAllLines(filePath);
                foreach (var line in lines)
                {
                    MarqueeItems.Add(line);
                }
            }

            MarqueeListBox.ItemsSource = MarqueeItems;
        }

        private void MarqueeListBox_SelectionChanged(object sender, SelectionChangedEventArgs e)
        {
            if (MarqueeListBox.SelectedItem != null)
            {
                RoomNumbersComboBox.SelectedIndex = 0; // 选择 "全部"

                string selectedItem = MarqueeListBox.SelectedItem.ToString();

                // 假设颜色信息在项目字符串的括号内，如 "全部(紅色) - 內容..."
                int startIndex = selectedItem.IndexOf('(');
                int endIndex = selectedItem.IndexOf(')');
                if (startIndex != -1 && endIndex != -1 && endIndex > startIndex)
                {
                    string color = selectedItem.Substring(startIndex + 1, endIndex - startIndex - 1);

                    // 根据颜色字符串设置ColorComboBox的选项
                    foreach (ComboBoxItem item in ColorComboBox.Items)
                    {
                        if (item.Content.ToString() == color)
                        {
                            ColorComboBox.SelectedItem = item;
                            break;
                        }
                    }
                }
            }
        }

        private void LoadMarqueeItem_Click(object sender, RoutedEventArgs e)
        {
            if (MarqueeListBox.SelectedItem != null)
            {
                string selectedText = MarqueeListBox.SelectedItem.ToString();
                ContentTextBox.Text = selectedText;
            }
            else
            {
                System.Windows.MessageBox.Show("請先選擇一個項目。");
            }
        }

        private void DisplayLogFile(string hostName, string logFileName)
        {
            // 構建網路共享路徑，指向pc901的superstar資料夾
            string logFilePath = $@"\\{hostName}\superstar\{logFileName}";
            Console.WriteLine($"嘗試讀取日誌文件: {logFilePath}"); // 添加調試輸出

            try
            {
                if (string.IsNullOrEmpty(hostName))
                {
                    systemExceptionLogTextBox.Text = "請先選擇包廂電腦";
                    return;
                }

                // 讀取遠端電腦上的日誌文件
                string logContent = File.ReadAllText(logFilePath);
                systemExceptionLogTextBox.Text = logContent;
                systemExceptionLogTextBox.Visibility = Visibility.Visible;
            }
            catch (Exception ex)
            {
                systemExceptionLogTextBox.Text = $"無法讀取 {hostName} 的日誌文件: {ex.Message}\n" +
                                               $"請確認以下事項:\n" +
                                               $"1. {hostName} 電腦是否開機\n" +
                                               $"2. superstar 資料夾是否已設為共享\n" +
                                               $"3. 網路連接是否正常\n" +
                                               $"4. 路徑: {logFilePath}";
            }
        }

        private void InitializeConnection()
        {
            try
            {
                client = new TcpClient("192.168.88.52", 1000); // 使用VOD服务器的IP和端口
                stream = client.GetStream();
            }
            catch (Exception ex)
            {
                System.Windows.MessageBox.Show("Connection failed: " + ex.Message);
            }
        }

        private async void SendAnnouncement_Click(object sender, RoutedEventArgs e)
        {
            // 檢查是否正在發送中
            if (isSending)
            {
                System.Windows.MessageBox.Show("正在發送其他公告，請稍候再試");
                return;
            }

            // 檢查是否有選中的項目
            if (MarqueeListBox.SelectedItem != null)
            {
                try
                {
                    lock (sendLock)
                    {
                        if (isSending) return;
                        isSending = true;
                    }

                    // 發送選中的公告
                    await SendSpecificAnnouncement(MarqueeListBox.SelectedItem.ToString());
                }
                finally
                {
                    isSending = false;
                }
            }
            else
            {
                System.Windows.MessageBox.Show("請先選擇要發送的公告");
            }
        }

        // 新增一個方法來處理定時發送
        private async Task SendNextAnnouncement()
        {
            if (isSending)
            {
                Console.WriteLine("跳過自動發送：上一則公告正在發送中");
                return;
            }

            if (MarqueeItems == null || MarqueeItems.Count == 0)
            {
                Console.WriteLine("沒有可發送的公告");
                return;
            }

            try
            {
                lock (sendLock)
                {
                    if (isSending) return;
                    isSending = true;
                }

                string announcement = MarqueeItems[currentAnnouncementIndex];
                currentAnnouncementIndex = (currentAnnouncementIndex + 1) % MarqueeItems.Count;
                
                // 根據公告內容長度動態調整下一次發送的間隔
                TimeSpan nextInterval = CalculateAnnouncementInterval(announcement);
                announcementTimer.Interval = nextInterval;
                
                Console.WriteLine($"下一則公告將在 {nextInterval.TotalSeconds} 秒後發送");
                
                await SendSpecificAnnouncement(announcement);
            }
            finally
            {
                isSending = false;
            }
        }

        // 實際發送邏輯
        private async Task SendSpecificAnnouncement(string announcement)
        {
            Console.WriteLine($"準備發送公告: {announcement}");

            string pattern = @"^(全部|\d{4})\((白色|紅色|綠色|黑色|藍色)\)-(.+)$";
            Match match = Regex.Match(announcement, pattern);

            if (!match.Success)
            {
                Console.WriteLine("公告格式不正確");
                return;
            }

            string targetRoom = match.Groups[1].Value;
            string color = match.Groups[2].Value;
            string message = match.Groups[3].Value;

            var activeRooms = GetActiveRooms();
            List<string> targetHostNames = new List<string>();

            if (targetRoom.Equals("全部", StringComparison.OrdinalIgnoreCase))
            {
                targetHostNames = activeRooms
                    .Where(r => r.Status == "已占用")
                    .Select(r => r.PcName)
                    .ToList();
            }
            else
            {
                var targetRoomState = activeRooms.FirstOrDefault(r => r.RoomNumber == targetRoom);
                if (targetRoomState != null && targetRoomState.Status == "已占用")
                {
                    targetHostNames.Add(targetRoomState.PcName);
                }
            }

            if (targetHostNames.Count == 0)
            {
                Console.WriteLine("沒有符合條件的目標房間");
                return;
            }

            // 記錄發送目標
            Console.WriteLine($"發送目標數量: {targetHostNames.Count}");
            foreach (var hostName in targetHostNames)
            {
                Console.WriteLine($"- {hostName}");
            }

            // 並行發送給所有目標房間
            var sendTasks = targetHostNames.Select(hostName => 
                Task.Run(async () =>
                {
                    try
                    {
                        await SendAnnouncementAsync(hostName, announcement);
                        return (hostName, success: true, error: "");
                    }
                    catch (Exception ex)
                    {
                        return (hostName, success: false, error: ex.Message);
                    }
                }));

            // 等待所有發送任務完成
            var results = await Task.WhenAll(sendTasks);

            // 統計結果
            int successCount = results.Count(r => r.success);
            int failCount = results.Count(r => !r.success);

            // 記錄結果
            Console.WriteLine($"發送完成 - 成功: {successCount}, 失敗: {failCount}");
            LogToFile($"公告發送結果 - 成功: {successCount}, 失敗: {failCount}, 內容: {announcement}");

            // 記錄失敗的詳細資訊
            foreach (var result in results.Where(r => !r.success))
            {
                Console.WriteLine($"發送失敗 - 房間: {result.hostName}, 錯誤: {result.error}");
                LogToFile($"發送失敗 - 房間: {result.hostName}, 錯誤: {result.error}");
            }
        }

        // 修改 SendAnnouncementAsync 方法，加入超時控制
        private async Task SendAnnouncementAsync(string hostname, string message)
        {
            int attemptCount = 0;
            bool messageSent = false;
            Exception lastException = null;

            while (attemptCount < MaxSendAttempts && !messageSent)
            {
                try
                {
                    using (var client = new TcpClient())
                    {
                        // 設置連接超時為3秒
                        var connectTask = client.ConnectAsync(hostname, 1000);
                        if (await Task.WhenAny(connectTask, Task.Delay(3000)) != connectTask)
                        {
                            throw new TimeoutException($"連接到 {hostname} 超時");
                        }

                        using (NetworkStream stream = client.GetStream())
                        {
                            // 設置讀寫超時
                            stream.WriteTimeout = 3000;
                            stream.ReadTimeout = 3000;

                            byte[] data = Encoding.UTF8.GetBytes(message + "\r\n");
                            await stream.WriteAsync(data, 0, data.Length);
                            messageSent = true;
                            
                            Console.WriteLine($"成功發送消息到 {hostname}");
                        }
                    }
                }
                catch (Exception ex)
                {
                    lastException = ex;
                    attemptCount++;
                    
                    if (attemptCount < MaxSendAttempts)
                    {
                        await Task.Delay(DelayBetweenSendAttempts);
                        Console.WriteLine($"重試 {attemptCount}/{MaxSendAttempts} 發送到 {hostname}");
                    }
                }
            }

            if (!messageSent)
            {
                throw new Exception($"發送到 {hostname} 失敗，已重試 {attemptCount} 次", lastException);
            }
        }

        private void LogToFile(string message)
        {
            string logFilePath = "log.txt"; // 设定日志文件的路径
            string logMessage = $"{DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss")} - {message}\r\n";

            // 使用 File.AppendAllText 异步写入日志信息，它会自动创建文件（如果文件不存在的话）
            File.AppendAllText(logFilePath, logMessage);
        }

        private void Window_Closing(object sender, System.ComponentModel.CancelEventArgs e)
        {
            if (announcementTimer != null)
            {
                announcementTimer.Stop();
            }
            if (stream != null)
            {
                stream.Close();
            }
            if (client != null)
            {
                client.Close();
            }
            Console.WriteLine("程式正在關閉...");
            FreeConsole();
        }

        [DllImport("kernel32.dll", SetLastError = true)]
        static extern bool FreeConsole();
        private void LoadSongsFromDatabase()
        {
            string connectionString = @"Data Source=KSongDatabase.db;";  // SQLite连接字符串
            string query = "SELECT * FROM SongLibrary";

            using (SQLiteConnection connection = new SQLiteConnection(connectionString))
            {
                SQLiteCommand command = new SQLiteCommand(query, connection);
                try
                {
                    connection.Open();
                    SQLiteDataReader reader = command.ExecuteReader();

                    _songs = new ObservableCollection<SongData>();
                    while (reader.Read())
                    {
                        //int? dbAdjust = null; // 使用可空的整数类型

                        //// 在尝试转换之前，检查字段是否为空
                        //if (!reader.IsDBNull(reader.GetOrdinal("DB加減")) && !string.IsNullOrWhiteSpace(reader["DB加減"].ToString()))
                        //{
                        //    dbAdjust = Convert.ToInt32(reader["DB加減"]);
                        //}

                        int songNameLength = 0;

                        if (!int.TryParse(reader["歌名字數"].ToString(), out songNameLength))
                        {
                            System.Diagnostics.Debug.WriteLine($"歌名字數 conversion failed for value {reader["歌名字數"].ToString()}");
                        }

                        var song = new SongData(
                            reader["歌曲編號"].ToString(),
                            reader["歌曲名稱"].ToString(),
                            reader["歌星 A"].ToString(),
                            reader["歌星 B"].ToString(),
                            reader["路徑 1"].ToString(),
                            reader["路徑 2"].ToString(),
                            reader["歌曲檔名"].ToString(),
                            reader.IsDBNull(reader.GetOrdinal("新增日期")) ? DateTime.Now.ToString("yyyy/MM/dd") : Convert.ToDateTime(reader["新增日期"]).ToString("yyyy/MM/dd"),
                            reader["分類"].ToString(),
                            reader["歌曲注音"].ToString(),
                            reader["歌曲拼音"].ToString(),
                            reader["語別"].ToString(),
                            reader.IsDBNull(reader.GetOrdinal("點播次數")) ? 0 : Convert.ToInt32(reader["點播次數"]),
                            reader["版權01"].ToString(),
                            reader["版權02"].ToString(),
                            reader["版權03"].ToString(),
                            reader["版權04"].ToString(),
                            reader["版權05"].ToString(),
                            reader["版權06"].ToString(),
                            reader.IsDBNull(reader.GetOrdinal("狀態")) ? 0 : Convert.ToInt32(reader["狀態"]),
                            reader.IsDBNull(reader.GetOrdinal("歌名字數")) ? 0 : Convert.ToInt32(reader["歌名字數"]),
                            reader.IsDBNull(reader.GetOrdinal("人聲")) ? 0 : Convert.ToInt32(reader["人聲"]),
                            reader.IsDBNull(reader.GetOrdinal("狀態2")) ? 0 : Convert.ToInt32(reader["狀態2"]),
                            reader["情境"].ToString(),
                            reader["歌星A注音"].ToString(),
                            reader["歌星B注音"].ToString(),
                            reader["歌星A分類"].ToString(),
                            reader["歌星B分類"].ToString(),
                            reader["歌星A簡體"].ToString(),
                            reader["歌星B簡體"].ToString(),
                            reader["歌名簡體"].ToString(),
                            reader["歌星A拼音"].ToString(),
                            reader["歌星B拼音"].ToString()
                        );
                        _songs.Add(song);
                    }
                    SongsDataGrid.ItemsSource = _songs;  // 确保这里没有错误，你的 XAML 定义了 SongsDataGrid 控件
                    reader.Close();
                }
                catch (Exception ex)
                {
                    System.Windows.MessageBox.Show("數據庫操作失敗: " + ex.Message);
                }
            }
        }

        private void SongsDataGrid_SelectionChanged(object sender, SelectionChangedEventArgs e)
        {
            if (SongsDataGrid.SelectedItem is SongData selectedSong)
            {
                // 更新 TextBox 控件
                // 這裡假設您的 TextBox 控件已經命名，如 txtSongNumber、txtSongName 等
                txtSongNumber.Text = selectedSong.SongNumber;
                txtSongName.Text = selectedSong.Song;
                txtArtistA.Text = selectedSong.ArtistA;
                txtArtistB.Text = selectedSong.ArtistB;
                txtPath1.Text = selectedSong.SongFilePathHost1;
                txtPath2.Text = selectedSong.SongFilePathHost2;
                txtSongFileName.Text = selectedSong.SongFileName;
                txtAddedDate.Text = selectedSong.AddedTime;
                txtCategory.Text = selectedSong.Category;
                txtSongPhonetic.Text = selectedSong.PhoneticNotation;
                txtSongPinyin.Text = selectedSong.PinyinNotation;
                txtArtistAPhonetic.Text = selectedSong.ArtistAPhonetic;
                txtArtistBPhonetic.Text = selectedSong.ArtistBPhonetic;
                // 繼續為其他字段更新值
                txtSongNameLength.Text = selectedSong.SongNameLength.ToString(); // Convert int to string
                txtPlays.Text = selectedSong.Plays.ToString();
                txtCopyright01.Text = selectedSong.Copyright01;
                txtCopyright02.Text = selectedSong.Copyright02;
                txtCopyright03.Text = selectedSong.Copyright03;
                txtCopyright04.Text = selectedSong.Copyright04;
                txtCopyright05.Text = selectedSong.Copyright05;
                txtCopyright06.Text = selectedSong.Copyright06;
                // 方法1: 使用ComboBoxItem的Name或Tag属性匹配
                foreach (ComboBoxItem item in artistACategoryComboBox.Items)
                {
                    if (item.Content.ToString() == selectedSong.ArtistACategory)
                    {
                        artistACategoryComboBox.SelectedItem = item;
                        break;
                    }
                }
                foreach (ComboBoxItem item in artistBCategoryComboBox.Items)
                {
                    if (item.Content.ToString() == selectedSong.ArtistBCategory)
                    {
                        artistBCategoryComboBox.SelectedItem = item;
                        break;
                    }
                }
                foreach (ComboBoxItem item in languageTypeComboBox.Items)
                {
                    if (item.Content.ToString() == selectedSong.LanguageType)
                    {
                        languageTypeComboBox.SelectedItem = item;
                        break;
                    }
                }
                foreach (ComboBoxItem item in statusComboBox.Items)
                {
                    if (int.Parse(item.Content.ToString()) == selectedSong.Status)
                    {
                        statusComboBox.SelectedItem = item;
                        break;
                    }
                }
                foreach (ComboBoxItem item in status2ComboBox.Items)
                {
                    if (int.Parse(item.Content.ToString()) == selectedSong.Status2)
                    {
                        status2ComboBox.SelectedItem = item;
                        break;
                    }
                }
                foreach (ComboBoxItem item in vocalComboBox.Items)
                {
                    if (int.Parse(item.Content.ToString()) == selectedSong.Vocal)
                    {
                        vocalComboBox.SelectedItem = item;
                        break;
                    }
                }
                foreach (ComboBoxItem item in situationsComboBox.Items)
                {
                    if (item.Content.ToString() == selectedSong.Situation)
                    {
                        situationsComboBox.SelectedItem = item;
                        break;
                    }
                }
            }
        }

        private int CalculateSongNameLength(string songName)
        {
            int length = 0;
            bool isEnglishWord = false;

            foreach (char ch in songName)
            {
                if (char.IsWhiteSpace(ch))
                {
                    if (isEnglishWord)
                    {
                        length++;
                        isEnglishWord = false;
                    }
                }
                else if (char.IsLetter(ch))
                {
                    if (ch >= 0x4E00 && ch <= 0x9FA5)
                    {
                        // Chinese character
                        length++;
                        isEnglishWord = false;
                    }
                    else
                    {
                        // English letter
                        isEnglishWord = true;
                    }
                }
            }

            // If the last character was part of an English word, count it as one word
            if (isEnglishWord)
            {
                length++;
            }

            return length;
        }

        private void SaveSongButton_Click(object sender, RoutedEventArgs e)
        {
            string songName = txtSongName.Text;

            var song = new SongData(
                txtSongNumber.Text,
                txtSongName.Text,
                txtArtistA.Text,
                txtArtistB.Text,
                txtPath1.Text,
                txtPath2.Text,
                txtSongFileName.Text,
                txtAddedDate.Text,
                txtCategory.Text,
                txtSongPhonetic.Text,
                txtSongPinyin.Text,
                ((ComboBoxItem)languageTypeComboBox.SelectedItem).Content.ToString(),
                int.Parse(txtPlays.Text),
                txtCopyright01.Text,
                txtCopyright02.Text,
                txtCopyright03.Text,
                txtCopyright04.Text,
                txtCopyright05.Text,
                txtCopyright06.Text,
                int.Parse((statusComboBox.SelectedItem as ComboBoxItem)?.Content.ToString()), // Replace with actual status if available
                int.Parse(txtSongNameLength.Text), // Use calculated song name length
                int.Parse((vocalComboBox.SelectedItem as ComboBoxItem)?.Content.ToString()), // Replace with actual vocal if available
                int.Parse((status2ComboBox.SelectedItem as ComboBoxItem)?.Content.ToString()), // Replace with actual status2 if available
                ((ComboBoxItem)situationsComboBox.SelectedItem).Content.ToString(),
                txtArtistAPhonetic.Text,
                txtArtistBPhonetic.Text,
                (artistACategoryComboBox.SelectedItem as ComboBoxItem)?.Content.ToString(), // Replace with actual artistACategory if available
                (artistBCategoryComboBox.SelectedItem as ComboBoxItem)?.Content.ToString(), // Replace with actual artistBCategory if available
                txtArtistASimplified.Text,
                txtArtistBSimplified.Text,
                txtSongSimplified.Text,
                txtArtistAPinyin.Text,
                txtArtistBPinyin.Text
            );

            _SaveSongToDatabase(song);
        }

        private void DeleteSongButton_Click(object sender, RoutedEventArgs e)
        {
            if (SongsDataGrid.SelectedItem is SongData selectedSong)
            {
                Console.WriteLine($"Attempting to delete song with SongNumber: {selectedSong.SongNumber}");
                DeleteSongFromDatabase(selectedSong.SongNumber);

                // After deletion, check if it was successful before removing from ObservableCollection
                if (!_songs.Any(s => s.SongNumber == selectedSong.SongNumber))
                {
                    Console.WriteLine("Song successfully deleted from database. Removing from UI.");
                    _songs.Remove(selectedSong);  // Remove the song from the ObservableCollection
                }
                else
                {
                    Console.WriteLine("Song still exists in the database after attempted deletion.");
                }
                SongsDataGrid.ItemsSource = null;  // 清空 DataGrid 來源
                SongsDataGrid.ItemsSource = _songs;  // 重新設置來源以觸發 UI 更新
            }
            else
            {
                Console.WriteLine("No song selected to delete.");
            }
        }

        private void DeleteSongFromDatabase(string songNumber)
        {
            string connectionString = @"Data Source=KSongDatabase.db;";

            using (SQLiteConnection connection = new SQLiteConnection(connectionString))
            {
                string query = "DELETE FROM SongLibrary WHERE 歌曲編號 = @SongNumber";

                using (SQLiteCommand command = new SQLiteCommand(query, connection))
                {
                    command.Parameters.AddWithValue("@SongNumber", songNumber);
                    connection.Open();

                    int rowsAffected = command.ExecuteNonQuery();
                    if (rowsAffected > 0)
                    {
                        Console.WriteLine($"Song with SongNumber: {songNumber} successfully deleted.");
                    }
                    else
                    {
                        Console.WriteLine($"Failed to delete song with SongNumber: {songNumber}.");
                    }
                }
            }
        }

        private void SaveSongToDatabase(SongData song)
        {
            string connectionString = @"Data Source=KSongDatabase.db;";
            string query = "INSERT INTO SongLibrary (歌曲編號, 歌曲名稱, [歌星 A], [歌星 B], [路徑 1], [路徑 2], 歌曲檔名, 新增日期, 分類, 歌曲注音, 歌曲拼音, 語別, 點播次數, 版權01, 版權02, 版權03, 版權04, 版權05, 版權06, 狀態, 歌名字數, 人聲, 狀態2, 情境, 歌星A注音, 歌星B注音, 歌星A分類, 歌星B分類, 歌星A簡體, 歌星B簡體, 歌名簡體) " +
                           "VALUES (@SongNumber, @Song, @ArtistA, @ArtistB, @SongFilePathHost1, @SongFilePathHost2, @SongFileName, @AddedTime, @Category, @PhoneticNotation, @PinyinNotation, @LanguageType, @Plays, @Copyright01, @Copyright02, @Copyright03, @Copyright04, @Copyright05, @Copyright06, @Status, @SongNameLength, @Vocal, @Status2, @Situation, @ArtistAPhonetic, @ArtistBPhonetic, @ArtistACategory, @ArtistBCategory, @ArtistASimplified, @ArtistBSimplified, @SongSimplified)";

            using (SQLiteConnection connection = new SQLiteConnection(connectionString))
            {
                SQLiteCommand command = new SQLiteCommand(query, connection);
                command.Parameters.AddWithValue("@SongNumber", song.SongNumber);
                command.Parameters.AddWithValue("@Song", song.Song);
                command.Parameters.AddWithValue("@ArtistA", song.ArtistA);
                command.Parameters.AddWithValue("@ArtistB", song.ArtistB);
                command.Parameters.AddWithValue("@SongFilePathHost1", song.SongFilePathHost1);
                command.Parameters.AddWithValue("@SongFilePathHost2", song.SongFilePathHost2);
                command.Parameters.AddWithValue("@SongFileName", song.SongFileName);
                // Convert the date format from "yyyy/MM/dd" to "yyyy-MM-dd"
                string addedTimeFormatted = song.AddedTime;
                DateTime parsedDate;
                if (DateTime.TryParseExact(addedTimeFormatted, "yyyy/MM/dd", CultureInfo.InvariantCulture, DateTimeStyles.None, out parsedDate))
                {
                    addedTimeFormatted = parsedDate.ToString("yyyy-MM-dd");
                }
                command.Parameters.AddWithValue("@AddedTime", addedTimeFormatted);
                command.Parameters.AddWithValue("@Category", song.Category);
                command.Parameters.AddWithValue("@PhoneticNotation", song.PhoneticNotation);
                command.Parameters.AddWithValue("@PinyinNotation", song.PinyinNotation);
                command.Parameters.AddWithValue("@LanguageType", song.LanguageType);
                command.Parameters.AddWithValue("@Plays", song.Plays);
                command.Parameters.AddWithValue("@Copyright01", song.Copyright01);
                command.Parameters.AddWithValue("@Copyright02", song.Copyright02);
                command.Parameters.AddWithValue("@Copyright03", song.Copyright03);
                command.Parameters.AddWithValue("@Copyright04", song.Copyright04);
                command.Parameters.AddWithValue("@Copyright05", song.Copyright05);
                command.Parameters.AddWithValue("@Copyright06", song.Copyright06);
                command.Parameters.AddWithValue("@Status", song.Status);
                command.Parameters.AddWithValue("@SongNameLength", song.SongNameLength);
                command.Parameters.AddWithValue("@Vocal", song.Vocal);
                command.Parameters.AddWithValue("@Status2", song.Status2);
                command.Parameters.AddWithValue("@Situation", song.Situation);
                command.Parameters.AddWithValue("@ArtistAPhonetic", song.ArtistAPhonetic);
                command.Parameters.AddWithValue("@ArtistBPhonetic", song.ArtistBPhonetic);
                command.Parameters.AddWithValue("@ArtistACategory", song.ArtistACategory);
                command.Parameters.AddWithValue("@ArtistBCategory", song.ArtistBCategory);
                command.Parameters.AddWithValue("@ArtistASimplified", song.ArtistASimplified);
                command.Parameters.AddWithValue("@ArtistBSimplified", song.ArtistBSimplified);
                command.Parameters.AddWithValue("@SongSimplified", song.SongSimplified);

                try
                {
                    connection.Open();
                    command.ExecuteNonQuery();
                    System.Windows.MessageBox.Show("Song saved successfully to the database.");
                }
                catch (Exception ex)
                {
                    System.Windows.MessageBox.Show("Failed to save song to the database: " + ex.Message);
                }
            }

            // Add the song to the ObservableCollection if it's not already in it
            var existingSong = _songs.FirstOrDefault(s => s.SongNumber == song.SongNumber);
            if (existingSong == null)
            {
                _songs.Add(song);
            }
            else
            {
                // Update the existing song in the ObservableCollection
                int index = _songs.IndexOf(existingSong);
                _songs[index] = song;
            }
        }

        private void _SaveSongToDatabase(SongData song)
        {
            string connectionString = @"Data Source=KSongDatabase.db;";
            string query = "INSERT INTO SongLibrary (歌曲編號, 歌曲名稱, [歌星 A], [歌星 B], [路徑 1], [路徑 2], 歌曲檔名, 新增日期, 分類, 歌曲注音, 歌曲拼音, 語別, 點播次數, 版權01, 版權02, 版權03, 版權04, 版權05, 版權06, 狀態, 歌名字數, 人聲, 狀態2, 情境, 歌星A注音, 歌星B注音, 歌星A分類, 歌星B分類, 歌星A簡體, 歌星B簡體, 歌名簡體) " +
                           "VALUES (@SongNumber, @Song, @ArtistA, @ArtistB, @SongFilePathHost1, @SongFilePathHost2, @SongFileName, @AddedTime, @Category, @PhoneticNotation, @PinyinNotation, @LanguageType, @Plays, @Copyright01, @Copyright02, @Copyright03, @Copyright04, @Copyright05, @Copyright06, @Status, @SongNameLength, @Vocal, @Status2, @Situation, @ArtistAPhonetic, @ArtistBPhonetic, @ArtistACategory, @ArtistBCategory, @ArtistASimplified, @ArtistBSimplified, @SongSimplified)";

            using (SQLiteConnection connection = new SQLiteConnection(connectionString))
            {
                SQLiteCommand command = new SQLiteCommand(query, connection);
                command.Parameters.AddWithValue("@SongNumber", song.SongNumber);
                command.Parameters.AddWithValue("@Song", song.Song);
                command.Parameters.AddWithValue("@ArtistA", song.ArtistA);
                command.Parameters.AddWithValue("@ArtistB", song.ArtistB);
                command.Parameters.AddWithValue("@SongFilePathHost1", song.SongFilePathHost1);
                command.Parameters.AddWithValue("@SongFilePathHost2", song.SongFilePathHost2);
                command.Parameters.AddWithValue("@SongFileName", song.SongFileName);
                // Convert the date format from "yyyy/MM/dd" to "yyyy-MM-dd"
                string addedTimeFormatted = song.AddedTime;
                DateTime parsedDate;
                if (DateTime.TryParseExact(addedTimeFormatted, "yyyy/MM/dd", CultureInfo.InvariantCulture, DateTimeStyles.None, out parsedDate))
                {
                    addedTimeFormatted = parsedDate.ToString("yyyy-MM-dd");
                }
                command.Parameters.AddWithValue("@AddedTime", addedTimeFormatted);
                command.Parameters.AddWithValue("@Category", song.Category);
                command.Parameters.AddWithValue("@PhoneticNotation", song.PhoneticNotation);
                command.Parameters.AddWithValue("@PinyinNotation", song.PinyinNotation);
                command.Parameters.AddWithValue("@LanguageType", song.LanguageType);
                command.Parameters.AddWithValue("@Plays", song.Plays);
                command.Parameters.AddWithValue("@Copyright01", song.Copyright01);
                command.Parameters.AddWithValue("@Copyright02", song.Copyright02);
                command.Parameters.AddWithValue("@Copyright03", song.Copyright03);
                command.Parameters.AddWithValue("@Copyright04", song.Copyright04);
                command.Parameters.AddWithValue("@Copyright05", song.Copyright05);
                command.Parameters.AddWithValue("@Copyright06", song.Copyright06);
                command.Parameters.AddWithValue("@Status", song.Status);
                command.Parameters.AddWithValue("@SongNameLength", song.SongNameLength);
                command.Parameters.AddWithValue("@Vocal", song.Vocal);
                command.Parameters.AddWithValue("@Status2", song.Status2);
                command.Parameters.AddWithValue("@Situation", song.Situation);
                command.Parameters.AddWithValue("@ArtistAPhonetic", song.ArtistAPhonetic);
                command.Parameters.AddWithValue("@ArtistBPhonetic", song.ArtistBPhonetic);
                command.Parameters.AddWithValue("@ArtistACategory", song.ArtistACategory);
                command.Parameters.AddWithValue("@ArtistBCategory", song.ArtistBCategory);
                command.Parameters.AddWithValue("@ArtistASimplified", song.ArtistASimplified);
                command.Parameters.AddWithValue("@ArtistBSimplified", song.ArtistBSimplified);
                command.Parameters.AddWithValue("@SongSimplified", song.SongSimplified);

                try
                {
                    connection.Open();
                    command.ExecuteNonQuery();
                    //System.Windows.MessageBox.Show("Song saved successfully to the database.");
                }
                catch (Exception ex)
                {
                    System.Windows.MessageBox.Show("Failed to save song to the database: " + ex.Message);
                }
            }

            // Add the song to the ObservableCollection if it's not already in it
            var existingSong = _songs.FirstOrDefault(s => s.SongNumber == song.SongNumber);
            if (existingSong == null)
            {
                _songs.Add(song);
            }
            else
            {
                // Update the existing song in the ObservableCollection
                int index = _songs.IndexOf(existingSong);
                _songs[index] = song;
            }
        }

        private void LoveSongButton_Click(object sender, RoutedEventArgs e)
        {
            AddCategory("A1");
        }

        private void TalentShowButton_Click(object sender, RoutedEventArgs e)
        {
            AddCategory("B1");
        }

        private void MedleyButton_Click(object sender, RoutedEventArgs e)
        {
            AddCategory("C1");
        }

        private void NinetiesButton_Click(object sender, RoutedEventArgs e)
        {
            AddCategory("D1");
        }

        private void MemoriesButton_Click(object sender, RoutedEventArgs e)
        {
            AddCategory("E1");
        }

        private void MainlandButton_Click(object sender, RoutedEventArgs e)
        {
            AddCategory("F1");
        }

        private void ClearButton_Click(object sender, RoutedEventArgs e)
        {
            txtCategory.Text = string.Empty;
        }

        private void AddCategory(string categoryCode)
        {
            if (string.IsNullOrEmpty(txtCategory.Text))
            {
                txtCategory.Text = $",{categoryCode},";
            }
            else
            {
                txtCategory.Text += $"{categoryCode},";
            }
        }

        private void UpdatePhoneticButton_Click(object sender, RoutedEventArgs e)
        {
            string songName = txtSongName.Text;
            if (!string.IsNullOrEmpty(songName) && ChineseChar.IsValidChar(songName[0]))
            {
                string pinyin = ConvertToPinyin(songName);
                string simplifiedPinyin = string.Concat(pinyin.Split(' ').Select(p => p[0])); // Get first letters only
                string zhuyin = PinyinToZhuyinConverter.ConvertPinyinToZhuyin(pinyin);
                string simplifiedZhuyin = string.Concat(zhuyin.Split(' ').Select(z => PinyinToZhuyinConverter.IsZhuyin(z[0]) ? z[0].ToString() : z.ToUpper()));

                txtSongPinyin.Text = simplifiedPinyin.ToUpper(); // Convert to uppercase
                txtSongPhonetic.Text = simplifiedZhuyin;
            }

            // Process artist fields
            ProcessArtistFields();
        }

        private void ProcessArtistFields()
        {
            // Process artistA
            string artistA = txtArtistA.Text;
            if (!string.IsNullOrEmpty(artistA))
            {
                string pinyin = ConvertToPinyin(artistA);
                string simplifiedPinyin = string.Concat(pinyin.Split(' ').Select(p => p[0]));
                string zhuyin = PinyinToZhuyinConverter.ConvertPinyinToZhuyin(pinyin);
                string simplifiedZhuyin = string.Concat(zhuyin.Split(' ').Select(z => PinyinToZhuyinConverter.IsZhuyin(z[0]) ? z[0].ToString() : z.ToUpper()));
                
                txtArtistAPinyin.Text = simplifiedPinyin;
                txtArtistAPhonetic.Text = simplifiedZhuyin;
            }
            else
            {
                txtArtistAPhonetic.Text = artistA;
            }

            // Process artistB
            string artistB = txtArtistB.Text;
            if (!string.IsNullOrEmpty(artistB))
            {
                string pinyin = ConvertToPinyin(artistB);
                string simplifiedPinyin = string.Concat(pinyin.Split(' ').Select(p => p[0]));
                string zhuyin = PinyinToZhuyinConverter.ConvertPinyinToZhuyin(pinyin);
                string simplifiedZhuyin = string.Concat(zhuyin.Split(' ').Select(z => PinyinToZhuyinConverter.IsZhuyin(z[0]) ? z[0].ToString() : z.ToUpper()));
                txtArtistBPhonetic.Text = simplifiedZhuyin;
            }
            else
            {
                txtArtistBPhonetic.Text = artistB;
            }
        }

        private string ConvertToPinyin(string chineseText)
        {
            StringBuilder pinyinBuilder = new StringBuilder();

            foreach (char ch in chineseText)
            {
                if (ChineseChar.IsValidChar(ch))
                {
                    ChineseChar chineseChar = new ChineseChar(ch);
                    string pinyin = chineseChar.Pinyins[0].ToLower(); // Get the first Pinyin and convert to lower case
                    pinyin = pinyin.Substring(0, pinyin.Length - 1); // Remove the tone number at the end
                    pinyinBuilder.Append(pinyin + " ");
                }
            }

            return pinyinBuilder.ToString().Trim();
        }

        private void TxtArtistA_TextChanged(object sender, TextChangedEventArgs e)
        {
            txtArtistASimplified.Text = ConvertToSimplifiedChinese(txtArtistA.Text);
        }

        private void TxtArtistB_TextChanged(object sender, TextChangedEventArgs e)
        {
            txtArtistBSimplified.Text = ConvertToSimplifiedChinese(txtArtistB.Text);
        }

        private void TxtSongName_TextChanged(object sender, TextChangedEventArgs e)
        {
            txtSongSimplified.Text = ConvertToSimplifiedChinese(txtSongName.Text);
        }

        private string ConvertToSimplifiedChinese(string text)
        {
            if (string.IsNullOrWhiteSpace(text))
                return text;

            string simplifiedText = string.Empty;

            foreach (char c in text)
            {
                if (ChineseChar.IsValidChar(c))
                {
                    simplifiedText += ChineseConverter.Convert(c.ToString(), ChineseConversionDirection.TraditionalToSimplified);
                }
                else
                {
                    simplifiedText += c;
                }
            }

            return simplifiedText;
        }

        private void ExportSongsButton_Click(object sender, RoutedEventArgs e)
        {
            try
            {
                Microsoft.Win32.SaveFileDialog saveFileDialog = new Microsoft.Win32.SaveFileDialog
                {
                    Filter = "CSV file (*.csv)|*.csv|All files (*.*)|*.*",
                    FileName = "SongsExport.csv"
                };
                if (saveFileDialog.ShowDialog() == true)
                {
                    using (StreamWriter sw = new StreamWriter(saveFileDialog.FileName, false, Encoding.UTF8))
                    {
                        // 定义属性名称到中文名称的映射字典
                        Dictionary<string, string> propertyToChineseMap = new Dictionary<string, string>
                        {
                            { "SongNumber", "歌曲編號" },
                            { "Category", "分類" },
                            { "Song", "歌曲名稱" },
                            { "Plays", "點播次數" },
                            { "ArtistA", "歌星 A" },
                            { "ArtistB", "歌星 B" },
                            { "AddedTime", "新增日期" },
                            { "SongFilePathHost1", "路徑 1" },
                            { "SongFilePathHost2", "路徑 2" },
                            { "SongFileName", "歌曲檔名" },
                            { "PhoneticNotation", "歌曲注音" },
                            { "PinyinNotation", "歌曲拼音" },
                            { "LanguageType", "語別" },
                            { "Copyright01", "版權01" },
                            { "Copyright02", "版權02" },
                            { "Copyright03", "版權03" },
                            { "Copyright04", "版權04" },
                            { "Copyright05", "版權05" },
                            { "Copyright06", "版權06" },
                            { "Status", "狀態" },
                            { "SongNameLength", "歌名字數" },
                            { "Vocal", "人聲" },
                            { "Status2", "狀態2" },
                            { "Situation", "情境" },
                            { "ArtistAPhonetic", "歌星A注音" },
                            { "ArtistBPhonetic", "歌星B注音" },
                            { "ArtistACategory", "歌星A分類" },
                            { "ArtistBCategory", "歌星B分類" },
                            { "ArtistASimplified", "歌星A簡體" },
                            { "ArtistBSimplified", "歌星B簡體" },
                            { "SongSimplified", "歌名簡體" },
                            { "ArtistAPinyin", "歌星A拼音" },
                            { "ArtistBPinyin", "歌星B拼音" }
                        };

                        // 获取所有属性名
                        PropertyInfo[] properties = typeof(SongData).GetProperties();

                        // 写入标题行（映射到中文名称）
                        sw.WriteLine(string.Join(",", properties.Select(p => propertyToChineseMap.ContainsKey(p.Name) ? propertyToChineseMap[p.Name] : p.Name)));

                        // 遍历歌曲集合并写入文件
                        foreach (var song in _songs)
                        {
                            // 获取所有属性值
                            var values = properties.Select(p => p.GetValue(song, null)).Select(v => v?.ToString() ?? string.Empty);

                            // 写入一行
                            sw.WriteLine(string.Join(",", values));
                        }
                    }
                    System.Windows.MessageBox.Show("歌曲數據庫導出成功！");
                }
            }
            catch (Exception ex)
            {
                System.Windows.MessageBox.Show("導出過程中發生錯誤: " + ex.Message);
            }
        }

        private void ImportSongsButton_Click(object sender, RoutedEventArgs e)
        {
            Microsoft.Win32.OpenFileDialog openFileDialog = new Microsoft.Win32.OpenFileDialog
            {
                Filter = "Excel Files|*.xls;*.xlsx;*.xlsm",
                Title = "Select an Excel File"
            };

            if (openFileDialog.ShowDialog() == true)
            {
                string filePath = openFileDialog.FileName;
                List<SongData> songs = ImportSongsFromExcel(filePath);

                // Only show success message if songs are imported successfully (no errors)
                if (songs != null && songs.Count > 0)
                {
                    SaveSongsToDatabase(songs);
                    System.Windows.MessageBox.Show("歌曲數據庫匯入成功！");
                }
                else
                {
                    // Handle the case where the import failed or no valid songs were imported
                    System.Windows.MessageBox.Show("匯入過程中發生錯誤，請檢查文件格式。");
                }
            }
        }

        private List<SongData> ImportSongsFromExcel(string filePath)
        {
            var songs = new List<SongData>();
            bool hasErrors = false; // Track if any errors occur

            try
            {
                System.Text.Encoding.RegisterProvider(System.Text.CodePagesEncodingProvider.Instance);

                using (var stream = File.Open(filePath, FileMode.Open, FileAccess.Read))
                {
                    using (var reader = ExcelReaderFactory.CreateReader(stream))
                    {
                        var result = reader.AsDataSet();
                        var table = result.Tables[0];

                        for (int i = 1; i < table.Rows.Count; i++) // Skip header row
                        {
                            var row = table.Rows[i];

                            // Check if row contains enough columns
                            if (row.ItemArray.Length < 33)
                            {
                                System.Windows.MessageBox.Show($"Row {i + 1} does not have enough columns. Expected 33 but found {row.ItemArray.Length}.");
                                hasErrors = true; // Mark that an error occurred
                                continue; // Skip this row
                            }

                            // Assigning the value for column 32, if it exists
                            string column32 = row.ItemArray.Length > 32 ? row[32].ToString() : "";

                            var song = new SongData
                            (
                                row[0].ToString(),
                                row[1].ToString(),
                                row[2].ToString(),
                                row[3].ToString(),
                                row[4].ToString(),
                                row[5].ToString(),
                                row[6].ToString(),
                                row[7].ToString(),
                                row[8].ToString(),
                                row[9].ToString(),
                                row[10].ToString(),
                                row[11].ToString(),
                                int.TryParse(row[12].ToString(), out int plays) ? plays : 0,
                                row[13].ToString(),
                                row[14].ToString(),
                                row[15].ToString(),
                                row[16].ToString(),
                                row[17].ToString(),
                                row[18].ToString(),
                                int.TryParse(row[19].ToString(), out int status) ? status : 0,
                                int.TryParse(row[20].ToString(), out int songNameLength) ? songNameLength : 0,
                                int.TryParse(row[21].ToString(), out int vocal) ? vocal : 0,
                                int.TryParse(row[22].ToString(), out int status2) ? status2 : 0,
                                row[23].ToString(),
                                row[24].ToString(),
                                row[25].ToString(),
                                row[26].ToString(),
                                row[27].ToString(),
                                row[28].ToString(),
                                row[29].ToString(),
                                row[30].ToString(),
                                row[31].ToString(),
                                column32 // Optional column value
                            );

                            songs.Add(song);
                        }
                    }
                }
            }
            catch (Exception ex)
            {
                // Show error message in a MessageBox
                System.Windows.Forms.MessageBox.Show($"An error occurred while importing songs: {ex.Message}", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
                hasErrors = true; // Mark that an error occurred
            }

            // Return null if there were errors
            return hasErrors ? null : songs;
        }

        private void SaveSongsToDatabase(List<SongData> songs)
        {
            // Implement this method to save the list of songs to your database
            foreach (var song in songs)
            {
                // Save each song to the database
                _SaveSongToDatabase(song);
            }
        }

        private void WelcomeMessageTextBox_TextChanged(object sender, TextChangedEventArgs e)
        {
            // 获取文本框的当前内容
            var currentText = WelcomeMessageTextBox.Text;

            // 指定要写入的文件路径
            var filePath = "WelcomeMessage.txt";

            // 将内容写入文件
            File.WriteAllText(filePath, currentText);
        }

        private void Window_Loaded(object sender, RoutedEventArgs e)
        {
            // Now that the Window is loaded, set the flag to true
            isFormFullyLoaded = true;

            // You can now safely access controls like txtNewSongLimit and txtHotSongLimit here if needed
        }

        private void IntegerUpDown_ValueChanged(object sender, TextChangedEventArgs e)
        {
            // Ensure the form components are fully initialized before processing any changes.
            if (!isFormFullyLoaded)
                return;

            // Ensure both controls are initialized.
            if (txtNewSongLimit != null && txtHotSongLimit != null)
            {
                if (int.TryParse(txtNewSongLimit.Text, out int newSongLimit) && int.TryParse(txtHotSongLimit.Text, out int hotSongLimit))
                {
                    // Safely access the value since it's known to be non-null here.
                    // Since we're reacting to changes on both controls, we should handle file saving here.
                    SaveLimitsToFile(newSongLimit, hotSongLimit);
                }
                else
                {
                    // Handle invalid input, e.g., show a message or reset the value to a default
                    System.Windows.MessageBox.Show("請輸入有效的整數。");
                }
            }
        }

        private void SaveLimitsToFile(int newSongLimit, int hotSongLimit)
        {
            string filePath = "SongLimitsSettings.txt"; // Update with the path where you want to save the file

            try
            {
                using (StreamWriter file = new StreamWriter(filePath, false)) // 'false' to overwrite the file if it exists
                {
                    file.WriteLine("NewSongLimit: " + newSongLimit);
                    file.WriteLine("HotSongLimit: " + hotSongLimit);
                }
            }
            catch (Exception ex)
            {
                // Handle any errors here, possibly logging them or informing the user
                Console.WriteLine("An error occurred while writing to the file: " + ex.Message);
            }
        }

        private void SearchTypeComboBox_SelectionChanged(object sender, SelectionChangedEventArgs e)
        {
            // 如果日期查詢被選中，你可能想要更改 TextBox 的行為
            if (searchTypeComboBox.SelectedItem is ComboBoxItem selectedItem && selectedItem.Content.ToString() == "日期查詢")
            {
                // 設定 TextBox 為日期格式，或準備接受日期輸入
                searchTextBox.Text = String.Empty;
            }
        }

        private void SearchButton_Click(object sender, RoutedEventArgs e)
        {
            // 根據選中的查詢類型和 TextBox 中的值進行查詢
            if (searchTypeComboBox.SelectedItem is ComboBoxItem selectedItem)
            {
                List<SongData> filteredSongs = new List<SongData>();
                switch (selectedItem.Content.ToString())
                {
                    case "編號查詢":
                        filteredSongs = PerformNumberSearch(searchTextBox.Text);
                        break;
                    case "歌星查詢":
                        filteredSongs = PerformArtistSearch(searchTextBox.Text);
                        break;
                    case "歌名查詢":
                        filteredSongs = PerformSongNameSearch(searchTextBox.Text);
                        break;
                    case "日期查詢":
                        filteredSongs = PerformDateSearch(searchTextBox.Text);
                        break;
                    case "語別查詢":
                        filteredSongs = PerformLanguageTypeSearch(searchTextBox.Text);
                        break;
                        // 其他查詢類型...
                }

                SongsDataGrid.ItemsSource = filteredSongs;

                // Update the result count label
                resultCountLabel.Content = $"查詢筆數: {filteredSongs.Count}筆";
            }
        }

        // Perform a search based on song number
        private List<SongData> PerformNumberSearch(string numberInput)
        {
            return _songs.Where(song => song.SongNumber.Contains(numberInput)).ToList();
        }

        private List<SongData> PerformDateSearch(string dateInput)
        {
            DateTime searchDate;
            string[] fullDateFormats = { "yyyy/MM/dd" };
            string[] yearMonthFormats = { "yyyy/MM" };

            if (DateTime.TryParseExact(dateInput, fullDateFormats, CultureInfo.InvariantCulture, DateTimeStyles.None, out searchDate))
            {
                return _songs.Where(song =>
                    DateTime.TryParseExact(song.AddedTime, "yyyy/MM/dd", CultureInfo.InvariantCulture, DateTimeStyles.None, out DateTime addedDate) &&
                    addedDate.Date == searchDate.Date
                ).ToList();
            }
            else if (DateTime.TryParseExact(dateInput, yearMonthFormats, CultureInfo.InvariantCulture, DateTimeStyles.None, out searchDate))
            {
                return _songs.Where(song =>
                    DateTime.TryParseExact(song.AddedTime, "yyyy/MM/dd", CultureInfo.InvariantCulture, DateTimeStyles.None, out DateTime addedDate) &&
                    addedDate.Year == searchDate.Year && addedDate.Month == searchDate.Month
                ).ToList();
            }
            else if (!string.IsNullOrWhiteSpace(dateInput))
            {
                return _songs.Where(song =>
                    song.AddedTime.StartsWith(dateInput) ||
                    song.AddedTime.Replace("-", "/").StartsWith(dateInput)
                ).ToList();
            }
            else
            {
                return _songs.ToList();
            }
        }

        private List<SongData> PerformArtistSearch(string artistInput)
        {
            return _songs.Where(song =>
                song.ArtistA.IndexOf(artistInput, StringComparison.OrdinalIgnoreCase) >= 0 ||
                song.ArtistB.IndexOf(artistInput, StringComparison.OrdinalIgnoreCase) >= 0
            ).ToList();
        }

        private List<SongData> PerformSongNameSearch(string songNameInput)
        {
            return _songs.Where(song => song.Song.IndexOf(songNameInput, StringComparison.OrdinalIgnoreCase) >= 0).ToList();
        }

        private List<SongData> PerformLanguageTypeSearch(string languageTypeInput)
        {
            return _songs.Where(song => song.LanguageType.IndexOf(languageTypeInput, StringComparison.OrdinalIgnoreCase) >= 0).ToList();
        }

        private void Increase_Click(object sender, RoutedEventArgs e)
        {
            // 获取触发事件的按钮
            System.Windows.Controls.Button button = sender as System.Windows.Controls.Button;
            // 假设我们使用按钮的 Tag 属性来引用相关联的 TextBox
            // 例如, button.Tag = "valueTextBox";
            System.Windows.Controls.TextBox textBox = this.FindName(button.Tag.ToString()) as System.Windows.Controls.TextBox;
            if (textBox != null)
            {
                // 将文本框的值增加
                int value = int.Parse(textBox.Text);
                value++;
                textBox.Text = value.ToString();
            }
        }

        private void Decrease_Click(object sender, RoutedEventArgs e)
        {
            System.Windows.Controls.Button button = sender as System.Windows.Controls.Button;
            // 与Increase_Click类似的逻辑，但是减少值
            System.Windows.Controls.TextBox textBox = this.FindName(button.Tag.ToString()) as System.Windows.Controls.TextBox;
            if (textBox != null)
            {
                int value = int.Parse(textBox.Text);
                value--;
                textBox.Text = value.ToString();
            }
        }

        private List<string> GetRoomConfigurations()
        {
            List<string> roomConfigurations = new List<string>();

            try
            {
                // 指定配置文件路径
                string filePath = System.IO.Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "RoomConfigurations.txt");

                // 检查文件是否存在
                if (File.Exists(filePath))
                {
                    // 逐行读取文件
                    string[] lines = File.ReadAllLines(filePath);

                    // 将读取的每一行添加到列表中
                    roomConfigurations.AddRange(lines);
                }
                else
                {
                    System.Windows.MessageBox.Show("包厢配置文件不存在。", "錯誤", MessageBoxButton.OK, MessageBoxImage.Error);
                }
            }
            catch (Exception ex)
            {
                System.Windows.MessageBox.Show($"讀取包厢配置文件時發生錯誤: {ex.Message}", "錯誤", MessageBoxButton.OK, MessageBoxImage.Error);
            }

            return roomConfigurations;
        }

        private void SongSelectionError_Click(object sender, RoutedEventArgs e)
        {
            if (hostComboBox.SelectedItem == null)
            {
                System.Windows.MessageBox.Show("請先選擇包廂");
                return;
            }
            
            string selectedHost = hostComboBox.SelectedItem.ToString();
            Console.WriteLine($"選擇的包廂: {selectedHost}"); // 添加調試輸出
            DisplayLogFile(selectedHost, "logfile.txt"); // 改為讀取 logfile.txt
        }

        private void SystemException_Click(object sender, RoutedEventArgs e)
        {
            if (hostComboBox.SelectedItem == null)
            {
                System.Windows.MessageBox.Show("請先選擇包廂");
                return;
            }
            
            string selectedHost = hostComboBox.SelectedItem.ToString();
            DisplayLogFile(selectedHost, "mainlog.txt");
        }

        //private void BrowseStandbyTrack_Click(object sender, RoutedEventArgs e)
        //{
        //    // 待機播放的逻辑代码
        //    var folderBrowserDialog = new System.Windows.Forms.FolderBrowserDialog();
        //    // 顯示對話框
        //    System.Windows.Forms.DialogResult result = folderBrowserDialog.ShowDialog();

        //    // 如果用戶選擇了文件夾
        //    if (result == System.Windows.Forms.DialogResult.OK)
        //    {
        //        // 將選擇的文件夾路徑設定到TextBox中
        //        standbyPlaybackPathTextBox.Text = folderBrowserDialog.SelectedPath;
        //    }
        //}

        //private void BrowseCacheLocation_Click(object sender, RoutedEventArgs e)
        //{
        //    // 在这里实现打开文件（或目录）选择对话框，让用户选择快取存放位置的逻辑
        //    var folderBrowserDialog = new System.Windows.Forms.FolderBrowserDialog();
        //    // 顯示對話框
        //    System.Windows.Forms.DialogResult result = folderBrowserDialog.ShowDialog();

        //    // 如果用戶選擇了文件夾
        //    if (result == System.Windows.Forms.DialogResult.OK)
        //    {
        //        // 將選擇的文件夾路徑設定到TextBox中
        //        cacheLocationTextBox.Text = folderBrowserDialog.SelectedPath;
        //    }
        //}


        private void SettingHint_Click(object sender, RoutedEventArgs e)
        {
            // 這裡添加按鈕點擊時的處理代碼
            System.Windows.MessageBox.Show("這裡是設定提示信息。");
        }

        //private void themeSelector_SelectionChanged(object sender, SelectionChangedEventArgs e)
        //{
        //    // 獲取當前選中的 ComboBoxItem
        //    var comboBox = sender as ComboBox;
        //    var selectedItem = comboBox.SelectedItem as ComboBoxItem;
        //    if (selectedItem != null)
        //    {
        //        try
        //        {
        //            string selectedTheme = selectedItem.Content.ToString();
        //            // 移除 "./" 如果存在
        //            selectedTheme = selectedTheme.Replace("./", "");
        //            //string imagePath = $@"{Directory.GetCurrentDirectory()}/{selectedTheme}/0.png";
        //            string imagePath = $@"C:/Users/Administrator/KSongloverNET/{selectedTheme}/0.png";
        //            themeImage.Source = new BitmapImage(new Uri(imagePath));
        //            themeImage.Visibility = Visibility.Visible;

        //            // 创建或覆盖描述文件，并写入选中的主题
        //            string descriptionFilePath = System.IO.Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "theme_description.txt");
        //            using (StreamWriter writer = new StreamWriter(descriptionFilePath))
        //            {
        //                writer.WriteLine($"Selected Theme: {selectedTheme}");
        //                writer.WriteLine($"Image Path: {imagePath}");
        //                //writer.WriteLine(selectedTheme.ToString());
        //            }
        //        }
        //        catch (Exception ex)
        //        {
        //            System.Windows.MessageBox.Show($"无法加载图片: {ex.Message}");
        //        }
        //    }
        //}

        private List<RoomState> GetActiveRooms()
        {
            List<RoomState> roomStates = new List<RoomState>();
            string filePath = @"C:\KTVAPP\roomstates.txt";

            try
            {
                string[] lines = File.ReadAllLines(filePath);
                foreach (string line in lines)
                {
                    string[] parts = line.Split(';');
                    if (parts.Length >= 5)
                    {
                        roomStates.Add(new RoomState
                        {
                            PcName = parts[0],
                            RoomNumber = parts[1],
                            Status = parts[2],
                            Time = parts[3],
                            ServiceStatus = parts[4]
                        });
                    }
                }
            }
            catch (Exception ex)
            {
                Console.WriteLine($"讀取房間狀態文件失敗: {ex.Message}");
                LogToFile($"讀取房間狀態文件失敗: {ex.Message}");
            }

            return roomStates;
        }

        private TimeSpan CalculateAnnouncementInterval(string message)
        {
            // 移除目標房間和顏色標記部分，只計算實際顯示內容的長度
            string pattern = @"^(全部|\d{4})\((白色|紅色|綠色|黑色|藍色)\)-(.+)$";
            Match match = Regex.Match(message, pattern);
            
            if (!match.Success)
            {
                return TimeSpan.FromSeconds(30); // 預設30秒
            }
            
            string actualContent = match.Groups[3].Value;
            int contentLength = actualContent.Length;
            
            // 計算間隔時間：基礎30秒 + 每個字元增加1秒
            int intervalSeconds = Math.Max(30, 30 + contentLength);
            
            Console.WriteLine($"公告內容長度: {contentLength} 字元，設定間隔時間: {intervalSeconds} 秒");
            return TimeSpan.FromSeconds(intervalSeconds);
        }

        // 新增啟動/停止發送的方法
        public void StartAnnouncements()
        {
            if (announcementTimer != null && !announcementTimer.IsEnabled)
            {
                announcementTimer.Start();
                Console.WriteLine("自動發送已啟動");
                LogToFile("自動發送已啟動");
            }
        }

        public void StopAnnouncements()
        {
            if (announcementTimer != null && announcementTimer.IsEnabled)
            {
                announcementTimer.Stop();
                Console.WriteLine("自動發送已停止");
                LogToFile("自動發送已停止");
            }
        }
    }
}