namespace SourceGit.Models {
    public enum ChangeViewMode {
        List,
        Grid,
        Tree,
    }

    public enum ChangeState {
        None,
        Modified,
        Added,
        Deleted,
        Renamed,
        Copied,
        Unmerged,
        Untracked
    }

    public class Change {
        public ChangeState Index { get; set; }
        public ChangeState WorkTree { get; set; } = ChangeState.None;
        public string Path { get; set; } = "";
        public string OriginalPath { get; set; } = "";

        public bool IsConflit {
            get {
                if (Index == ChangeState.Unmerged || WorkTree == ChangeState.Unmerged) return true;
                if (Index == ChangeState.Added && WorkTree == ChangeState.Added) return true;
                if (Index == ChangeState.Deleted && WorkTree == ChangeState.Deleted) return true;
                return false;
            }
        }

        public void Set(ChangeState index, ChangeState workTree = ChangeState.None) {
            Index = index;
            WorkTree = workTree;

            if (index == ChangeState.Renamed || workTree == ChangeState.Renamed) {
                var idx = Path.IndexOf('\t');
                if (idx >= 0) {
                    OriginalPath = Path.Substring(0, idx);
                    Path = Path.Substring(idx + 1);
                } else {
                    idx = Path.IndexOf(" -> ");
                    if (idx > 0) {
                        OriginalPath = Path.Substring(0, idx);
                        Path = Path.Substring(idx + 4);
                    }
                }
            }

            if (Path[0] == '"') Path = Path.Substring(1, Path.Length - 2);
            if (!string.IsNullOrEmpty(OriginalPath) && OriginalPath[0] == '"') OriginalPath = OriginalPath.Substring(1, OriginalPath.Length - 2);
        }
    }
}