RaindropViewer/Assets/Raindrop/Bootstrap/LoggingConfiguration.cs

using System;
using System.IO;
using Disk;
using log4net;
using log4net.Appender;
using log4net.Layout;
using log4net.Repository.Hierarchy;
using UnityEngine;

namespace Raindrop.Bootstrap
{
    public static class LoggingConfiguration
    {
        [RuntimeInitializeOnLoadMethod(RuntimeInitializeLoadType.BeforeSceneLoad)]
        private static void Configure()
        {
            // var key = "log4net.Internal.Debug";
            // string value = true.ToString();
            //
            // try  
            // {  
            //     var configFile = ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None);  
            //     var settings = configFile.AppSettings.Settings;  
            //     if (settings[key] == null)  
            //     {  
            //         settings.Add(key, value);  
            //     }  
            //     else  
            //     {  
            //         settings[key].Value = value;  
            //     }  
            //     configFile.Save(ConfigurationSaveMode.Modified);  
            //     ConfigurationManager.RefreshSection(configFile.AppSettings.SectionInformation.Name);  
            // }  
            // catch (ConfigurationErrorsException)  
            // {  
            //     Debug.Log("Error writing app settings");  
            // }  
            //

            var logpath = Path.Combine(DirectoryHelpers.GetInternalStorageDir(), "log.txt");
            Debug.Log("Application is configuring the global logger. \n" +
                      "log file is at : " + 
                      logpath);
            ConfigureLoggers(logpath);
            
        }
        public static void ConfigureLoggers(string filepath)
        {
            try
            {
                // log4net.Config.XmlConfigurator.Configure();
                Hierarchy hierarchy = (Hierarchy)LogManager.GetRepository();
                //1. log to unity console.
                var unityDebugAppender = new UnityDebugAppender();
                unityDebugAppender.Layout = new PatternLayout("%date{HH:mm:ss} [%level] - %message");
                //appender.Layout = new PatternLayout("%timestamp [%thread] %-5level - %message%newline");
                // BasicConfigurator.Configure(unityDebugAppender);
                hierarchy.Root.AddAppender(unityDebugAppender);
                Debug.Log("ConfigureLoggers : created unity console appender");
            }
            catch (Exception e)
            {
                Debug.LogError("failed to create unity console appender: " + e.ToString());
            }

            try
            {
                Hierarchy hierarchy = (Hierarchy)LogManager.GetRepository();

                var logFileAppender = new FileAppender();
                logFileAppender.Layout = new PatternLayout("%date{HH:mm:ss} [%level] - %message%newline");
                logFileAppender.File = filepath;
                logFileAppender.AppendToFile = true;
                //logFileAppender.RollingStyle = RollingFileAppender.RollingMode.Size;
                //logFileAppender.MaxSizeRollBackups = 10;
                //logFileAppender.MaxFileSize = 250 * 1000; // 250KB
                //logFileAppender.StaticLogFileName = true;   
                logFileAppender.ActivateOptions();
                // XmlConfigurator.Configure();
                hierarchy.Root.AddAppender(logFileAppender);
        
                hierarchy.Configured = true;
                Debug.Log("ConfigureLoggers : created filelogger");

            }
            catch (Exception e)
            {
                Debug.LogError("failed to create filelogger, error is : " + e.ToString());
            }

        }

    }
}