using NLog;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Runtime.CompilerServices;
using System.Text;
using System.Threading.Tasks;

namespace SKMC.Api.Common.Logger
{
    public class LogFactory
    {
        static LogFactory()
        {
            // NLog特殊处理，需要先注册Target再获取LOG实例，否则Target内部方法无法触发。
            NLog.LogManager.Setup()
                .SetupExtensions(ext =>
                {
                    ext.RegisterTarget<LoggingProductionTarget>("LoggingProductionTarget");
                    ext.RegisterTarget<LoggingParameterTarget>("LoggingParameterTarget");
                    ext.RegisterTarget<LoggingProcessTarget>("LoggingProcessTarget");
                    ext.RegisterTarget<LoggingActionTarget>("LoggingActionTarget");
                })
                .LoadConfigurationFromFile("nlog.config");
        }
        /// <summary>
        /// "Log4Net" 或 "NLog"
        /// </summary>
        private static readonly string LoggerType = "NLog";

        public static ILogger Get(Type type)
        {
            if (LoggerType == "Log4Net")
            {
                return new Log4netLogger(type);
            }
            else if (LoggerType == "NLog")
            {
                return new NLogLogger(type.FullName);
            }
            else
            {
                throw new NotSupportedException($"Logger type {LoggerType} is not supported.");
            }
        }

        public static ILogger Get([CallerFilePath] string callerFilePath = "")
        {

            var callerType = System.IO.Path.GetFileNameWithoutExtension(callerFilePath);
            if (LoggerType == "Log4Net")
            {
                return new Log4netLogger(callerType);
            }
            else if (LoggerType == "NLog")
            {
                return new NLogLogger(callerType);
            }
            else
            {
                throw new NotSupportedException($"Logger type {LoggerType} is not supported.");
            }
        }

        public static ILogger Get(LogCategory logCategory)
        {
            if (logCategory == LogCategory.ProductionLogger)
            {
                return new NLogLogger("ProductionLogger");
            }
            else if(logCategory == LogCategory.ParameterLogger)
            {
                return new NLogLogger("ParameterLogger");
            }
            else if (logCategory == LogCategory.ProcessLogger)
            {
                return new NLogLogger("ProcessLogger");
            }
            else if(logCategory == LogCategory.ActionLogger)
            {
                return new NLogLogger("ActionLogger");
            }
            else
            {
                throw new NotSupportedException($"Logger category {logCategory.ToString()} is not supported.");
            }
        }
        public enum LogCategory
        {
            ProductionLogger,
            ParameterLogger,
            ProcessLogger,
            ActionLogger
        }

    }
}