using System.Collections.Generic;

using System.Text;

using System.Threading.Tasks;

using Avalonia.Threading;

using CommunityToolkit.Mvvm.ComponentModel;

namespace SourceGit.ViewModels

{

public class DirHistories : ObservableObject

{

public string Title

{

get;

}

public bool IsLoading

{

get => _isLoading;

private set => SetProperty(ref _isLoading, value);

}

public List<Models.Commit> Commits

{

get => _commits;

private set => SetProperty(ref _commits, value);

}

public Models.Commit SelectedCommit

{

get => _selectedCommit;

set

{

if (SetProperty(ref _selectedCommit, value))

Detail.Commit = value;

}

}

public CommitDetail Detail

{

get => _detail;

}

public DirHistories(Repository repo, string dir, string revision = null)

{

if (!string.IsNullOrEmpty(revision))

Title = $"{dir} @ {revision}";

else

Title = dir;

_repo = repo;

_detail = new CommitDetail(repo, null);

_detail.SearchChangeFilter = dir;

Task.Run(async () =>

{

var argsBuilder = new StringBuilder();

argsBuilder

.Append("--date-order -n 10000 ")

.Append(revision ?? string.Empty)

.Append(" -- ")

.Append(dir.Quoted());

var commits = await new Commands.QueryCommits(_repo.FullPath, argsBuilder.ToString(), false)

.GetResultAsync()

.ConfigureAwait(false);

Dispatcher.UIThread.Post(() =>

{

Commits = commits;

IsLoading = false;

if (commits.Count > 0)

SelectedCommit = commits[0];

});

});

}

public void NavigateToCommit(Models.Commit commit)

{

_repo.NavigateToCommit(commit.SHA);

}

public string GetCommitFullMessage(Models.Commit commit)

{

var sha = commit.SHA;

if (_cachedCommitFullMessage.TryGetValue(sha, out var msg))

return msg;

msg = new Commands.QueryCommitFullMessage(_repo.FullPath, sha).GetResult();

_cachedCommitFullMessage[sha] = msg;

return msg;

}

private Repository _repo = null;

private bool _isLoading = true;

private List<Models.Commit> _commits = [];

private Models.Commit _selectedCommit = null;

private CommitDetail _detail = null;

private Dictionary<string, string> _cachedCommitFullMessage = new();

}

}