using Microsoft.Win32;
using System;
using System.IO;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;

namespace SourceGit.Views.Popups {

    /// <summary>
    ///     克隆
    /// </summary>
    public partial class Clone : Controls.PopupWidget {

        public string Uri { get; set; }
        public string Folder { get; set; }
        public string LocalName { get; set; }
        public string RemoteName { get; set; }
        public string ExtraArgs { get; set; }

        public Clone() {
            Folder = Models.Preference.Instance.Git.DefaultCloneDir;
            InitializeComponent();
            ruleRemote.IsOptional = true;
        }

        public override string GetTitle() {
            return App.Text("Clone");
        }

        public override Task<bool> Start() {
            var checks = new Controls.TextEdit[] { txtUrl, txtFolder, txtLocal, txtRemote };
            foreach (var edit in checks) {
                edit.GetBindingExpression(TextBox.TextProperty).UpdateSource();
                if (Validation.GetHasError(edit)) return null;
            }

            var sshKey = txtSSHKey.Text;

            return Task.Run(() => {
                var extras = string.IsNullOrEmpty(ExtraArgs) ? "" : ExtraArgs;
                if (!string.IsNullOrEmpty(RemoteName)) extras += $" --origin {RemoteName}";

                var succ = new Commands.Clone(Folder, Uri, LocalName, sshKey, extras, UpdateProgress).Exec();
                if (!succ) return false;

                var path = Folder;
                if (!string.IsNullOrEmpty(LocalName)) {
                    path = Path.GetFullPath(Path.Combine(path, LocalName));
                } else {
                    var name = Path.GetFileName(Uri);
                    if (name.EndsWith(".git")) name = name.Substring(0, name.Length - 4);
                    path = Path.GetFullPath(Path.Combine(path, name));
                }

                if (!Directory.Exists(path)) {
                    Models.Exception.Raise($"Folder {path} not found!");
                    return false;
                }

                if (!string.IsNullOrEmpty(sshKey)) {
                    var config = new Commands.Config(path);
                    var remote = "origin";
                    if (!string.IsNullOrEmpty(RemoteName)) remote = RemoteName;
                    config.Set($"remote.{remote}.sshkey", sshKey);
                }

                var gitDir = new Commands.QueryGitDir(path).Result();
                var repo = Models.Preference.Instance.AddRepository(path, gitDir, "");
                if (repo != null) Dispatcher.Invoke(() => Models.Watcher.Open(repo));
                return true;
            });
        }

        private void OnFolderSelectorClick(object sender, RoutedEventArgs e) {
            var dialog = new Controls.FolderDialog();
            if (dialog.ShowDialog() == true) {
                Folder = dialog.SelectedPath;
                txtFolder.GetBindingExpression(TextBox.TextProperty).UpdateTarget();
            }
        }

        private void OnSelectSSHKey(object sender, RoutedEventArgs e) {
            var initPath = Path.GetFullPath(Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.Personal), "..", ".ssh"));
            if (!Directory.Exists(initPath)) Directory.CreateDirectory(initPath);

            var dialog = new OpenFileDialog();
            dialog.Filter = $"SSH Private Key|*";
            dialog.Title = App.Text("SSHKey");
            dialog.InitialDirectory = initPath;
            dialog.CheckFileExists = true;
            dialog.Multiselect = false;

            if (dialog.ShowDialog() == true) txtSSHKey.Text = dialog.FileName;
        }

        private void OnUrlChanged(object sender, TextChangedEventArgs e) {
            if (!string.IsNullOrEmpty(txtUrl.Text)) {
                rowSSHKey.Height = new GridLength(txtUrl.Text.StartsWith("git@") ? 32 : 0, GridUnitType.Pixel);
            } else {
                rowSSHKey.Height = new GridLength(0, GridUnitType.Pixel);
            }
        }
    }
}