using System.IO; 

namespace DualScreenDemo
{
    public partial class PrimaryForm
    {
        private PictureBox pictureBoxEnglishSongs;
        private Button[] numberButtonsForSongs;
        private Button[] letterButtonsForEnglishSongs;
        private int[] ButtonsNumberSymbols = [1, 2, 3, 4, 5, 6, 7, 8, 9, 0];
        private string[] ButtonsEnglishSymbols = ["Q","W","E","R","T","Y","U","I","O","P",
                                                  "A","S","D","F","G","H","J","K","L",
                                                  "Z","X","C","V","B","N","M"];
        private Button modifyButtonEnglishSongs;
        private Button clearButtonEnglishSongs;
        private Button closeButtonEnglishSongs;
        private RichTextBox inputBoxEnglishSongs;

        private void InitializeButtonsForEnglishSongs()
        {
            InitializeInputBoxEnglishSongs();
            InitializeEngAlphbtBtns(pictureBoxEnglishSongs,LetterButtonEnglishSongs_Click);
            InitializeEngSongsButton();
        }

        private void InitializeEngSongsButton()
        {
            var data = LoadBtnConfigData();

            modifyButtonEnglishSongs = new Button { Name = "modifyButtonEnglishSongs" };
            ConfigureButton(modifyButtonEnglishSongs, 650, 275, 72, 67,
                new Bitmap(Path.Combine(serverPath, data["ModifyButtonImagesEnglish"]["normal"])),
                new Bitmap(Path.Combine(serverPath, data["ModifyButtonImagesEnglish"]["mouseOver"])),
                new Bitmap(Path.Combine(serverPath, data["ModifyButtonImagesEnglish"]["mouseDown"])),
                ModifyButtonEnglishSongs_Click);

            pictureBoxEnglishSongs.Controls.Add(modifyButtonEnglishSongs);


            clearButtonEnglishSongs = new Button { Name = "clearButtonEnglishSongs" };
            ConfigureButton(clearButtonEnglishSongs, 8, 275, 72, 67,
                new Bitmap(Path.Combine(serverPath, data["ClearButtonImagesEnglish"]["normal"])),
                new Bitmap(Path.Combine(serverPath, data["ClearButtonImagesEnglish"]["mouseOver"])),
                new Bitmap(Path.Combine(serverPath, data["ClearButtonImagesEnglish"]["mouseDown"])),
                ClearButtonEnglishSongs_Click);

            pictureBoxEnglishSongs.Controls.Add(clearButtonEnglishSongs);


            closeButtonEnglishSongs = new Button { Name = "closeButtonEnglishSongs" };
            ConfigureButton(closeButtonEnglishSongs, 730, 275, 72, 67,
                new Bitmap(Path.Combine(serverPath, data["CloseButtonImagesEnglish"]["normal"])),
                new Bitmap(Path.Combine(serverPath, data["CloseButtonImagesEnglish"]["mouseOver"])),
                new Bitmap(Path.Combine(serverPath, data["CloseButtonImagesEnglish"]["mouseDown"])),
                CloseButtonEnglishSongs_Click);

            pictureBoxEnglishSongs.Controls.Add(closeButtonEnglishSongs);
        }
        private void InitializeEngAlphbtBtns(Control control, EventHandler handler)
        {
            numberButtonsForSongs = new Button[10];
            letterButtonsForEnglishSongs = new Button[26];
            // 設置上排按鈕
            int x = 8;
            for (int i = 0; i < 10; i++)
            {
                CreateNumberBtns(i, x, 65, control, handler);
                x += 80;
            }

            x = 8;
            for (int i = 0; i < 10; i++)
            {
                CreateEngAlphbtBtns(i, x, 135, control, handler);
                x += 80;
            }

            x = 40;
            for (int i = 10; i < 19; i++)
            {
                CreateEngAlphbtBtns(i, x, 205, control, handler);
                x += 80;
            }
            // 設置下排按鈕
            x = 88;
            for (int i = 19; i < 26; i++)
            {
                CreateEngAlphbtBtns(i, x, 275, control, handler);
                x += 80;
            }
        }
        private void CreateEngAlphbtBtns(int index, int x, int y, Control control, EventHandler handler)
        {
            try
            {
                // 加載配置數據
                var data = LoadBtnConfigData();
                // 創建語音按鈕並設置其屬性
                letterButtonsForEnglishSongs[index] = new Button
                {
                    Name = $"ButtonsForEnglish_{ButtonsEnglishSymbols[index]}", // 按鈕名稱設為語音符號名稱
                };

                ConfigureButton(letterButtonsForEnglishSongs[index], x, y, 72, 67,
                    new Bitmap(Path.Combine(serverPath, data["EnglishLetterButtonImages"][$"button{index}_normal"])),
                    new Bitmap(Path.Combine(serverPath, data["EnglishLetterButtonImages"][$"button{index}_mouseOver"])),
                    new Bitmap(Path.Combine(serverPath, data["EnglishLetterButtonImages"][$"button{index}_mouseDown"])),
                    handler);

                // 設置按鈕的 Tag 屬性為對應的語音符號
                letterButtonsForEnglishSongs[index].Tag = ButtonsEnglishSymbols[index];

                // 將按鈕添加到表單的控制項集合中
                control.Controls.Add(letterButtonsForEnglishSongs[index]);
            }
            catch (Exception ex)
            {
                Console.WriteLine($"Error creating button at index {index}: {ex.Message}");
            }
        }
        private void CreateNumberBtns(int index, int x, int y, Control control, EventHandler handler)
        {
            try
            {
                // 加載配置數據
                var data = LoadBtnConfigData();
                // 創建語音按鈕並設置其屬性
                numberButtonsForSongs[index] = new Button
                {
                    Name = $"ButtonsForEnglish_{ButtonsNumberSymbols[index]}", // 按鈕名稱設為語音符號名稱
                };

                ConfigureButton(numberButtonsForSongs[index], x, y, 72, 67,
                    new Bitmap(Path.Combine(serverPath, data["NumberButtonImages"][$"button{index}_normal"])),
                    new Bitmap(Path.Combine(serverPath, data["NumberButtonImages"][$"button{index}_mouseOver"])),
                    new Bitmap(Path.Combine(serverPath, data["NumberButtonImages"][$"button{index}_mouseDown"])),
                    handler);

                // 設置按鈕的 Tag 屬性為對應的語音符號
                numberButtonsForSongs[index].Tag = ButtonsNumberSymbols[index];

                // 將按鈕添加到表單的控制項集合中
                control.Controls.Add(numberButtonsForSongs[index]);
            }
            catch (Exception ex)
            {
                Console.WriteLine($"Error creating button at index {index}: {ex.Message}");
            }
        }

        private void InitializeInputBoxEnglishSongs()
        {   /* 英文輸入介面設定，參考 config.ini */
            try
            {
                string fontName = "Times New Roman";
                float fontSize = 26;
                FontStyle fontStyle = FontStyle.Regular;
                Color foreColor = Color.Black;

                inputBoxEnglishSongs = new RichTextBox
                {
                    Visible = false,
                    Name = "inputBoxEnglishSongs",
                    ForeColor = foreColor,
                    Font = new Font(fontName, fontSize / 900 * Screen.PrimaryScreen.Bounds.Height, fontStyle)
                };

                ResizeAndPositionControl(inputBoxEnglishSongs, 10, 12, 455, 47);

                pictureBoxEnglishSongs.Controls.Add(inputBoxEnglishSongs);
            }
            catch (Exception ex)
            {
                Console.WriteLine($"An error occurred: {ex.Message}");
            }
        }
        /* 圖片位置設置 */
        private void ShowImageOnPictureBoxEnglishSongs(string imagePath)
        {
            try
            {

                Bitmap originalImage = new Bitmap(imagePath);

                pictureBoxEnglishSongs.Image = originalImage;

                ResizeAndPositionPictureBox(pictureBoxEnglishSongs, 390, 360, 808, 356);

                pictureBoxEnglishSongs.Visible = true;
            }
            catch (Exception ex)
            {
                Console.WriteLine($"An error occurred: {ex.Message}");
            }
        }

        private void SetEnglishSongsAndButtonsVisibility(bool isVisible)
        {
            System.Action action = () =>
            {
                SuspendLayout();
                if (isVisible) SetUIVisible(pictureBoxEnglishSongs);
                else CloseUI(pictureBoxEnglishSongs);
                ResumeLayout();
                PerformLayout();
            };

            if (pictureBoxEnglishSongs.InvokeRequired)
            {
                pictureBoxEnglishSongs.Invoke(action);
            }
            else
            {
                action();
            }
        }

        private void EnglishSearchSongsButton_Click(object sender, EventArgs e)
        {
            zhuyinSearchSongButton.BackgroundImage = zhuyinSearchSongNormalBackground;
            englishSearchSongButton.BackgroundImage = englishSearchSongActiveBackground;
            pinyinSearchSongButton.BackgroundImage = pinyinSearchSongNormalBackground;
            wordCountSearchSongButton.BackgroundImage = wordCountSearchSongNormalBackground;
            handWritingSearchSongButton.BackgroundImage = handWritingSearchSongNormalBackground;
            numberSearchSongButton.BackgroundImage = numberSearchSongNormalBackground;

            var configData = LoadBtnConfigData();
            string imagePath = Path.Combine(serverPath, configData["ImagePaths"]["EnglishSongs"]);

            ShowImageOnPictureBoxEnglishSongs(Path.Combine(serverPath, imagePath));
            // 鍵盤UI介面顯示設定
            SetWordCountSongsAndButtonsVisibility(false);
            SetEnglishSongsAndButtonsVisibility(true);
            SetPinYinSongsAndButtonsVisibility(false);
            SetHandWritingForSongsAndButtonsVisibility(false);
            SetSongIDSearchAndButtonsVisibility(false);
            SetZhuYinSongsAndButtonsVisibility(false);

            ResetinputBox();
            pictureBoxEnglishSongs.Visible = true;
        }
        private void LetterButtonEnglishSongs_Click(object sender, EventArgs e)
        {

            var button = sender as Button;
            if (button != null && button.Tag != null)
            {
                if (inputBoxEnglishSongs.Visible)
                {
                    inputBoxEnglishSongs.Text += button.Tag.ToString();
                }
            }
        }

        private void ModifyButtonEnglishSongs_Click(object sender, EventArgs e)
        {

            if (pictureBoxEnglishSongs.Controls.Contains(inputBoxEnglishSongs) && inputBoxEnglishSongs.Text.Length > 0)
            {
                inputBoxEnglishSongs.Text = inputBoxEnglishSongs.Text.Substring(0, inputBoxEnglishSongs.Text.Length - 1);
            }
        }
        private void ClearButtonEnglishSongs_Click(object sender, EventArgs e)
        {
            if (pictureBoxEnglishSongs.Controls.Contains(inputBoxEnglishSongs) && inputBoxEnglishSongs.Text.Length > 0)
            {
                inputBoxEnglishSongs.Text = "";
            }
        }
        private void CloseButtonEnglishSongs_Click(object sender, EventArgs e)
        {

            pictureBoxEnglishSongs.Visible = false;
            englishSearchSongButton.BackgroundImage = englishSearchSongNormalBackground;
            SetEnglishSongsAndButtonsVisibility(false);
            FindEnglishSongs();
        }        
        private void FindEnglishSongs()
        {
            string searchText = inputBoxEnglishSongs.Text;
            // 檢查是否為空字串或空白字元
            string query = string.IsNullOrWhiteSpace(searchText)
                ? "SELECT * FROM song_library_cache ORDER BY song_id DESC LIMIT 1000;"
                : $"SELECT * FROM song_library_cache WHERE song_name LIKE '{searchText}%' ORDER BY song_name DESC;";

            var searchResults = SearchSongs_Mysql(query);
            // 重置分頁    
            currentPage = 0;
            totalPages = (int)Math.Ceiling((double)searchResults.Count / itemsPerPage);
            // 更新多頁面面板的內容
            multiPagePanel.currentPageIndex = 0;
            multiPagePanel.LoadSongs(searchResults);
        }
    }
}