using System.Text.Json;
using InnovEnergy.Lib.Time.Unix;
using InnovEnergy.Lib.Utils;
using static System.Text.Json.JsonSerializer;

namespace InnovEnergy.App.SaliMax.SystemConfig;

// shut up trim warnings
#pragma warning disable IL2026  

public class Config //TODO: let IE choose from config files (Json) and connect to GUI
{
    private static String DefaultConfigFilePath => Path.Combine(Environment.CurrentDirectory, "config.json");

    private static readonly JsonSerializerOptions JsonOptions = new() { WriteIndented = true };

    public Double   MinSoc               { get; set; } 
    public UnixTime LastEoc              { get; set; } 
    public Double   PConstant            { get; set; } 
    public Double   ForceChargePower     { get; set; } 
    public Double   ForceDischargePower  { get; set; } 
    public Double   MaxInverterPower     { get; set; } 
    public Double   GridSetPoint         { get; set; } 
    public Double   SelfDischargePower   { get; set; } 
    public Double   HoldSocZone          { get; set; } 
    public Double   ControllerPConstant  { get; set; } 

    public static Config Default => new()
    {
        MinSoc              = 20,
        LastEoc             = UnixTime.Epoch,
        PConstant           = .5,
        ForceChargePower    = 1_000_000,
        ForceDischargePower = -1_000_000,
        MaxInverterPower    = 32_000,
        GridSetPoint        = 0.0,
        SelfDischargePower  = 200, // TODO: multiple batteries
        HoldSocZone         = 1, // TODO: find better name,
        ControllerPConstant = 0.5
    };
        

    public void Save(String? path = null)
    {
        var configFilePath = path ?? DefaultConfigFilePath;
        
        try
        {
            var jsonString = Serialize(this, JsonOptions);
            File.WriteAllText(configFilePath, jsonString);
        }
        catch (Exception e)
        {
            $"Failed to write config file {configFilePath}\n{e}".Log();
            throw;
        }
    }
    
    
    public static Config Load(String? path = null)
    {
        var configFilePath = path ?? DefaultConfigFilePath;
        try
        {
            var jsonString = File.ReadAllText(configFilePath);
            return Deserialize<Config>(jsonString)!;
        }
        catch (Exception e)
        {
            $"Failed to read config file {configFilePath}, using default config\n{e}".Log();
            return Default;
        }
    }
    
    
    public static async Task<Config> LoadAsync(String? path = null)
    {
        var configFilePath = path ?? DefaultConfigFilePath;
        try
        {
            var jsonString = await File.ReadAllTextAsync(configFilePath);
            return Deserialize<Config>(jsonString)!;
        }
        catch (Exception e)
        {
            Console.WriteLine($"Couldn't read config file {configFilePath}, using default config");
            e.Message.WriteLine();
            return Default;
        }
    }
}