using qdr.app.studiou.orders2printpack.Properties;
using System.IO.Abstractions;

namespace qdr.app.studiou.orders2printpack
{
    public partial class FormDigitalSend : Form
    {
        #region *** Cnstants ***
        private const string CS_DigitalDirSent = ".sent";
        private const string CS_DigitalDirTemp = ".temp";
        private const string CS_DigitalMetadata = "metadata.json";
        #endregion

        #region *** Fields ***
        private IFileSystem _fileSystem = new FileSystem();
        private string? _openedDigitalDir = null;
        private string? _openedDigitalDirSent = null;
        private string? _openedDigitalDirTemp = null;
        #endregion

        #region *** Constructors ***
        public FormDigitalSend()
        {
            InitializeComponent();
        }
        #endregion

        #region *** Form Handlers ***
        private void mmOpenDir_Click(object sender, EventArgs e)
        {
            dlgOpenDir.Description = "Otevřít další složku s digitálním obsahem ...";
            dlgOpenDir.UseDescriptionForTitle = true;
            dlgOpenDir.InitialDirectory = AppSettings.Default.LastDigitalDir;
            if (dlgOpenDir.ShowDialog() == DialogResult.OK)
            {
                AppSettings.Default.LastDigitalDir = dlgOpenDir.SelectedPath;
                AppSettings.Default.Save();
                OpenDigitalDir(_openedDigitalDir);
            }
        }

  

        private void mmSend_Click(object sender, EventArgs e)
        {

        }
        #endregion

        #region *** Private Methods ***
        #region **** Error Handling *****
        private void BlockErrorHandled(Action block)
        {
            try
            {
                block();
            }
            catch (Exception ex)
            {
                MessageBox.Show(this, ex.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
                RefreshToolButtons();
            }
        }
        #endregion
        #region **** Refresh UI *****
        private void RefreshToolButtons()
        {
            throw new NotImplementedException();
        }
        #endregion

        #region **** Digital Directory Operations *****
        private void OpenDigitalDir(string selectedPath)
        {
            BlockErrorHandled(()=>{
                EnsureDigitalDirStructureExists(selectedPath);
                
            });
        }

        private void EnsureDigitalDirStructureExists(string selectedPath)
        {
            if (string.IsNullOrEmpty(selectedPath) || !_fileSystem.Directory.Exists(selectedPath))
            {
                throw new DirectoryNotFoundException($"Adresář '{selectedPath}' neexistuje.");
            }
            _openedDigitalDir = selectedPath;
            _openedDigitalDirSent = _fileSystem.Path.Combine(selectedPath, CS_DigitalDirSent);
            _openedDigitalDirTemp = _fileSystem.Path.Combine(selectedPath, CS_DigitalDirTemp);

            if (!_fileSystem.Directory.Exists(_openedDigitalDirSent))
            {
                _fileSystem.Directory.CreateDirectory(_openedDigitalDirSent);
                Log($"Vytvořen adresář pro odeslaná data '{_openedDigitalDirSent}'");
            }
            if (!_fileSystem.Directory.Exists(_openedDigitalDirTemp))
            {
                _fileSystem.Directory.CreateDirectory(_openedDigitalDirTemp);
                Log($"Vytvořen pracovní adresář '{_openedDigitalDirTemp}'");
            }
            EnsureDigitalMetadataExists(selectedPath);
        }

        private void EnsureDigitalMetadataExists(string selectedPath)
        {
            var metadataFilePath = _fileSystem.Path.Combine(selectedPath, CS_DigitalMetadata);
            if (!_fileSystem.File.Exists(metadataFilePath))
            {
                RefreshMetadataFile(metadataFilePath);
            }
        }

        private void RefreshMetadataFile(string metadataFilePath)
        {
            Log($"Aktualizuji soubor s metadaty '{metadataFilePath}'...");

            var metadata = new EmailStorage.Metadata();
            _fileSystem.File.WriteAllText(metadataFilePath, System.Text.Json.JsonSerializer.Serialize(metadata, new System.Text.Json.JsonSerializerOptions { WriteIndented = true }));
            Log($"Soubor s metadaty '{metadataFilePath}' byl vytvořen.");
        }
        #endregion
        #region **** Logging *****
        private void LogBreak()
        {
            Log(new string('-', 80));
        }
        private void LogCaption(string message)
        {
                        Log($"*** {message} ***");
        }
        private void LogError(string message)
        {
                        Log($"[ERROR] {message}");
        }
        private void Log(string message)
        {
            lbLog.BeginUpdate();
            lbLog.Items.Insert(0, message);
            lbLog.EndUpdate();
        }
        #endregion
        #endregion

    }
}