using System.ComponentModel.DataAnnotations;
using System.IO;
using System.Threading.Tasks;

namespace SourceGit.ViewModels
{
    public class Archive : Popup
    {
        [Required(ErrorMessage = "Output file name is required")]
        public string SaveFile
        {
            get => _saveFile;
            set => SetProperty(ref _saveFile, value, true);
        }

        public object BasedOn
        {
            get;
            private set;
        }

        public Archive(Repository repo, Models.Branch branch)
        {
            _repo = repo;
            _revision = branch.Head;
            _saveFile = $"archive-{Path.GetFileNameWithoutExtension(branch.Name)}.zip";
            BasedOn = branch;
            View = new Views.Archive() { DataContext = this };
        }

        public Archive(Repository repo, Models.Commit commit)
        {
            _repo = repo;
            _revision = commit.SHA;
            _saveFile = $"archive-{commit.SHA.Substring(0, 10)}.zip";
            BasedOn = commit;
            View = new Views.Archive() { DataContext = this };
        }

        public Archive(Repository repo, Models.Tag tag)
        {
            _repo = repo;
            _revision = tag.SHA;
            _saveFile = $"archive-{tag.Name}.zip";
            BasedOn = tag;
            View = new Views.Archive() { DataContext = this };
        }

        public override Task<bool> Sure()
        {
            _repo.SetWatcherEnabled(false);
            ProgressDescription = "Archiving ...";

            return Task.Run(() =>
            {
                var succ = new Commands.Archive(_repo.FullPath, _revision, _saveFile, SetProgressDescription).Exec();
                CallUIThread(() =>
                {
                    _repo.SetWatcherEnabled(true);
                    if (succ)
                        App.SendNotification(_repo.FullPath, $"Save archive to : {_saveFile}");
                });

                return succ;
            });
        }

        private readonly Repository _repo = null;
        private string _saveFile;
        private readonly string _revision;
    }
}