using System.Collections.Generic;
using System.Threading.Tasks;

namespace SourceGit.ViewModels
{
    public class RepositoryConfigure : Popup
    {
        public string UserName
        {
            get;
            set;
        }

        public string UserEmail
        {
            get;
            set;
        }

        public bool GPGSigningEnabled
        {
            get;
            set;
        }

        public string GPGUserSigningKey
        {
            get;
            set;
        }

        public string HttpProxy
        {
            get;
            set;
        }

        public RepositoryConfigure(Repository repo)
        {
            _repo = repo;

            _cached = new Commands.Config(repo.FullPath).ListAll();
            if (_cached.ContainsKey("user.name")) UserName = _cached["user.name"];
            if (_cached.ContainsKey("user.email")) UserEmail = _cached["user.email"];
            if (_cached.ContainsKey("commit.gpgsign")) GPGSigningEnabled = _cached["commit.gpgsign"] == "true";
            if (_cached.ContainsKey("user.signingkey")) GPGUserSigningKey = _cached["user.signingkey"];
            if (_cached.ContainsKey("http.proxy")) HttpProxy = _cached["http.proxy"];

            View = new Views.RepositoryConfigure() { DataContext = this };
        }

        public override Task<bool> Sure()
        {
            SetIfChanged("user.name", UserName);
            SetIfChanged("user.email", UserEmail);
            SetIfChanged("commit.gpgsign", GPGSigningEnabled ? "true" : "false");
            SetIfChanged("user.signingkey", GPGUserSigningKey);
            SetIfChanged("http.proxy", HttpProxy);
            return null;
        }

        private void SetIfChanged(string key, string value)
        {
            bool changed = false;
            if (_cached.ContainsKey(key))
            {
                changed = value != _cached[key];
            }
            else if (!string.IsNullOrEmpty(value))
            {
                changed = true;
            }

            if (changed)
            {
                new Commands.Config(_repo.FullPath).Set(key, value);
            }
        }

        private readonly Repository _repo = null;
        private readonly Dictionary<string, string> _cached = null;
    }
}