using System.IO;
using System.Text;
using System.Threading.Tasks;
using Flawless.Client.Models;
using Newtonsoft.Json;
using Path = System.IO.Path;

namespace Flawless.Client.Service;

public class SettingService : BaseService<SettingService>
{
    
    private readonly JsonSerializer _serializer = JsonSerializer.Create();
    
    public static string SettingFilePath { get; } = 
        Path.Combine(AppDefaultValues.ProgramDataDirectory, "settings.json");
    
    public AppSettingModel AppSetting { get; private set; } = new AppSettingModel();

    public ValueTask ResetAsync()
    {
        AppSetting.RepositoryPath = AppDefaultValues.DefaultRepositoryDirectory;
        AppSetting.RefreshWorkspaceOnOpen = true;
        AppSetting.RefreshWorkspaceOnFilesystemChanges = true;
        AppSetting.DiffTool = "";
        AppSetting.FileManagerTool = "";

        return WriteToDiskAsync();
    }
    
    public async ValueTask WriteToDiskAsync()
    {
        var stream = File.Exists(SettingFilePath) ? File.OpenWrite(SettingFilePath) : File.Create(SettingFilePath);
        await using var fs = new StreamWriter(stream, Encoding.UTF8);
        _serializer.Serialize(fs, AppSetting);
    }
    
    public async ValueTask ReadFromDiskAsync()
    {
        if (!File.Exists(SettingFilePath)) return;
        using var fs = new StreamReader(File.OpenRead(SettingFilePath), Encoding.UTF8);
        _serializer.Populate(fs, AppSetting);
    }
}