namespace TakeNotev3.UserControls
{
    public partial class GroupsPage : UserControl
    {
        public List<FileGroup> groups;

        public GroupsPage()
        {
            InitializeComponent();
            
            // Load the data from a file
            LoadData();
            listView1.View = View.Tile;
        }

        private void btnAddGroup_Click(object sender, EventArgs e)
        {
            // Show a dialog box to get the name of the new group
            string groupName = Microsoft.VisualBasic.Interaction.InputBox("Enter the name of the new group:", "Add Group");
            if (!string.IsNullOrWhiteSpace(groupName))
            {
                // Create a new FileGroup object and add it to the groups list
                FileGroup newGroup = new FileGroup(groupName);
                groups.Add(newGroup);

                // Add a new ListViewGroup to the ListView control
                ListViewGroup listViewGroup = new ListViewGroup(groupName);
                listView1.Groups.Add(listViewGroup);

                // Save the updated data to a file
                SaveData();
                LoadData();
            }
        }

        private void btnRemoveGroup_Click(object sender, EventArgs e)
        {
            // Remove the selected group from the groups list
            if (listView1.SelectedItems.Count > 0)
            {
                string selectedGroupName = listView1.SelectedItems[0].Group.Header;
                FileGroup selectedGroup = groups.Find(g => g.Name == selectedGroupName);
                groups.Remove(selectedGroup);

                // Remove all sub items that belong to the selected group
                foreach (ListViewItem subItem in listView1.Items.Cast<ListViewItem>().Where(i => i.Group.Header == selectedGroupName).ToList())
                {
                    listView1.Items.Remove(subItem);
                }

                // Remove the selected group from the ListView control
                listView1.Groups.Remove(listView1.SelectedItems[0].Group);

                // Save the updated data to a file
                SaveData();
                LoadData();
            }
        }

        private void btnAddFile_Click(object sender, EventArgs e)
        {
            // Show a dialog box to let the user select one or more files
            OpenFileDialog openFileDialog = new OpenFileDialog();
            openFileDialog.Multiselect = true;
            if (openFileDialog.ShowDialog() == DialogResult.OK)
            {
                // Add the selected files to the ListView control as sub items of the selected group
                ListViewGroup selectedGroup = listView1.SelectedItems.Count > 0 ? listView1.SelectedItems[0].Group : null;
                foreach (string fileName in openFileDialog.FileNames)
                {
                    string filePath = Path.GetFullPath(fileName);
                    ListViewItem newItem = new ListViewItem(Path.GetFileName(filePath));
                    newItem.Tag = filePath;
                    listView1.Items.Add(newItem);
                    if (selectedGroup != null)
                    {
                        newItem.Group = selectedGroup;
                        FileGroup selectedFileGroup = groups.Find(g => g.Name == selectedGroup.Header);
                        selectedFileGroup.Files.Add(filePath);
                    }
                }

                // Save the updated data to a file
                SaveData();
                LoadData();
            }
        }

        private void btnRemoveFile_Click(object sender, EventArgs e)
        {
            // Remove the selected sub item from the ListView control and the corresponding FileGroup object
            if (listView1.SelectedItems.Count > 0)
            {
                ListViewItem selectedItem = listView1.SelectedItems[0];
                listView1.Items.Remove(selectedItem);

                string selectedFilePath = (string)selectedItem.Tag;
                FileGroup selectedFileGroup = groups.Find(g => g.Name == selectedItem.Group.Header);
                selectedFileGroup.Files.Remove(selectedFilePath);

                // Save the updated data to a file
                SaveData();
                LoadData();
            }
        }

        private void SaveData()
        {
            // Serialize the groups list to a JSON string
            string data = JsonConvert.SerializeObject(groups);


            // Write the JSON string to a file
            string fileName = "";
            string appDataFolder = Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData);
            string filePath = Path.Combine(appDataFolder, "TakeNotev3", "groups.json");
            Directory.CreateDirectory(Path.GetDirectoryName(filePath));
   
        }
        private void LoadData()
        {
            string appDataFolder = Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData);
            string filePath = Path.Combine(appDataFolder, "TakeNotev3", "groups.json");
            if (File.Exists(filePath))
            {
                string data = File.ReadAllText(filePath);

                // Deserialize the JSON string to a List<FileGroup> object
                groups = JsonConvert.DeserializeObject<List<FileGroup>>(data);

                // Add the FileGroup objects to the ListView control
                foreach (FileGroup group in groups)
                {
                    ListViewGroup listViewGroup = new ListViewGroup(group.Name);
                    listView1.Groups.Add(listViewGroup);
                    foreach (string fileName in group.Files)
                    {
                        ListViewItem newItem = new ListViewItem(Path.GetFileName(fileName));
                        newItem.Tag = fileName;
                        newItem.Group = listViewGroup;
                        listView1.Items.Add(newItem);
                    }
                }
            }
            else
            {
                groups = new List<FileGroup>();
            }
            if (listView1.Groups.Count == 0)
            {
                // If not, add a new ListViewGroup with a default name and select it
                ListViewGroup defaultGroup = new ListViewGroup("Default");
                listView1.Groups.Add(defaultGroup);
                listView1.SelectedItems.Clear();
                listView1.FocusedItem = null;
                defaultGroup.Header = "Default (Selected)";
                listView1.Items.Add(new ListViewItem("No files found.", defaultGroup));
                listView1.Items[0].Selected = true;
            }
        }
    }
}