using Newtonsoft.Json;
using System;
using WireMock.Admin.Requests;

namespace WireMock.Logging
{
    /// <summary>
    /// WireMockConsoleLogger which logs to Console
    /// </summary>
    /// <seealso cref="IWireMockLogger" />
    public class WireMockConsoleLogger : IWireMockLogger
    {
        /// <summary>
        /// Initializes a new instance of the <see cref="WireMockConsoleLogger"/> class.
        /// </summary>
        public WireMockConsoleLogger()
        {
            Console.OutputEncoding = System.Text.Encoding.UTF8;
        }

        /// <see cref="IWireMockLogger.Debug"/>
        public void Debug(string formatString, params object[] args)
        {
            Console.WriteLine(Format("Debug", formatString, args));
        }

        /// <see cref="IWireMockLogger.Info"/>
        public void Info(string formatString, params object[] args)
        {
            Console.WriteLine(Format("Info", formatString, args));
        }

        /// <see cref="IWireMockLogger.Warn"/>
        public void Warn(string formatString, params object[] args)
        {
            Console.WriteLine(Format("Warn", formatString, args));
        }

        /// <see cref="IWireMockLogger.Error(string, object[])"/>
        public void Error(string formatString, params object[] args)
        {
            Console.WriteLine(Format("Error", formatString, args));
        }

        /// <see cref="IWireMockLogger.Error(string, Exception)"/>
        public void Error(string formatString, Exception exception)
        {
            Console.WriteLine(Format("Error", formatString, exception.Message));

            if (exception is AggregateException ae)
            {
                ae.Handle(ex =>
                {
                    Console.WriteLine(Format("Error", "Exception {0}", ex.Message));
                    return true;
                });
            }
        }

        /// <see cref="IWireMockLogger.DebugRequestResponse"/>
        public void DebugRequestResponse(LogEntryModel logEntryModel, bool isAdminRequest)
        {
            string message = JsonConvert.SerializeObject(logEntryModel, Formatting.Indented);
            Console.WriteLine(Format("DebugRequestResponse", "Admin[{0}] {1}", isAdminRequest, message));
        }

        private static string Format(string level, string formatString, params object[] args)
        {
            var message = args.Length > 0 ? string.Format(formatString, args) : formatString;

            return $"{DateTime.UtcNow} [{level}] : {message}";
        }
    }
}