using System;
using System.ComponentModel;
using System.IO;
using Newtonsoft.Json;
using Xylem.Common.CommonCore.Consts;

namespace Xylem.Common.Hardware.WaterMeter.Genesis.GenesisConfig
{
    /// <summary>
    ///     Configuration of meter
    /// </summary>
    public class ProcessConfig
    {
        /// <summary>
        /// Load configuration file from AppRoaming or working directory 
        /// </summary>
        public Boolean ReadProcessConfig()
        {
            // Check for AppRoaming
            var configFile = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData),
                nameof(Genesis), ProgramConfig.MeterConfigFileName);

            if (!File.Exists(configFile))
            {
                // Take actual working directory
                configFile = Path.Combine(ProgramConfig.MeterConfigFileName);
                if (!File.Exists(configFile))
                {
                    UseRegisterWatchService = false;
                    UseErrorLogger = false;
                    AutoUpdateFiles = false;
                    ProductionMode = true;
                    return false;
                }
            }

            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;
            }

            return true;
        }

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

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