using System.Text.Json;
using System.Text.Json.Serialization;

using Toak.Core;
using Toak.Serialization;
using Toak.Core.Interfaces;

namespace Toak.Configuration;

public class ConfigManager : IConfigProvider
{
    private readonly string ConfigDir = Constants.Paths.ConfigDir;
    private readonly string ConfigPath = Constants.Paths.ConfigFile;

    public ConfigManager()
    {
    }

    public ToakConfig LoadConfig()
    {
        if (!File.Exists(ConfigPath))
        {
            return new ToakConfig();
        }

        try
        {
            var json = File.ReadAllText(ConfigPath);
            return JsonSerializer.Deserialize(json, AppJsonSerializerContext.Default.ToakConfig) ?? new ToakConfig();
        }
        catch (Exception)
        {
            return new ToakConfig();
        }
    }

    public void SaveConfig(ToakConfig config)
    {
        if (!Directory.Exists(ConfigDir))
        {
            Directory.CreateDirectory(ConfigDir);
        }

        var json = JsonSerializer.Serialize(config, AppJsonSerializerContext.Default.ToakConfig);
        File.WriteAllText(ConfigPath, json);
    }
}