using System;
using System.ComponentModel;
using System.IO;
using Newtonsoft.Json;

namespace Xylem.Common.Hardware.WaterMeter.MagFlux.MagFluxConfig
{
    /// <summary>
    ///     Configuration of meter
    /// </summary>
    public class ProcessConfig
    {
        /// <summary>
        ///     ctor
        /// </summary>
        public ProcessConfig()
        {
            UseRegisterWatchService = false;
            UseErrorLogger = false;
            AutoUpdateFiles = false;
            ProductionMode = true;
        }

        /// <summary>
        /// Load configuration file from AppRoaming or working directory 
        /// </summary>
        /// <param name="file"></param>
        public ProcessConfig(String file)
        {
            // check for AppRoaming
            var configFile = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData), 
                nameof(MagFlux), file);

            if (!File.Exists(configFile))
            {
                // take actual working directory
                configFile = Path.Combine(file);
                if (!File.Exists(configFile))
                {
                    UseRegisterWatchService = false;
                    UseErrorLogger = false;
                    return;
                }
            }

            using (var tr = new StreamReader(configFile))
            {
                var meterConfig = JsonConvert.DeserializeObject<ProcessConfig>(tr.ReadToEnd());
                UseRegisterWatchService = meterConfig.UseRegisterWatchService;
                RegisterWatchServiceUrl = meterConfig.RegisterWatchServiceUrl;
                UseMinMaxCheck = meterConfig.UseMinMaxCheck;
                UseErrorLogger = meterConfig.UseErrorLogger;
                ErrorLoggerServiceUrl = meterConfig.ErrorLoggerServiceUrl;
                UseCalibrationLogger = meterConfig.UseCalibrationLogger;
                CalibrationLoggerServiceUrl = meterConfig.CalibrationLoggerServiceUrl;
                AutoUpdateFiles =  meterConfig.AutoUpdateFiles;
                ProductionMode = meterConfig.ProductionMode;

            }

        }

        /// <summary>
        /// Write file to AppRoaming and backup it to actual working directory
        /// </summary>
        /// <param name="file"></param>
        public void Update(String file)
        {
            var configFile = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData), 
                nameof(MagFlux), file);

            File.WriteAllText(configFile, JsonConvert.SerializeObject(this));
            File.WriteAllText(file, JsonConvert.SerializeObject(this));
        }

        /// <summary>
        /// 
        /// </summary>
        public Boolean UseRegisterWatchService { get; set; }
        
        /// <summary>
        /// 
        /// </summary>
        public String RegisterWatchServiceUrl { get; set; }
        
        /// <summary>
        /// 
        /// </summary>
        public Boolean UseMinMaxCheck { get; set; }
        
        /// <summary>
        /// 
        /// </summary>
        public Boolean UseErrorLogger { get; set; }
        
        /// <summary>
        /// 
        /// </summary>
        public String ErrorLoggerServiceUrl { get; set; }

        /// <summary>
        /// 
        /// </summary>
        public Boolean UseCalibrationLogger { get; set; }
        
        /// <summary>
        /// 
        /// </summary>
        public String CalibrationLoggerServiceUrl { get; set; }

        /// <summary>
        /// 
        /// </summary>
        public Boolean AutoUpdateFiles { get; set; }

        [DefaultValue(true)]
        [JsonProperty(DefaultValueHandling = DefaultValueHandling.Populate)]

        public Boolean ProductionMode { get; set; } = true;
    }
}