using System;
using System.Diagnostics;
using System.Threading.Tasks;

namespace Sony.Filtr.Utility.Logging
{
    public static class LogActionWrapper
    {
        public static async Task<TResult> Execute<TResult>(Func<Task<TResult>> action, ILogger logger, string actionName, string parameters = null)
        {
            if (logger == null)
            {
                throw new ArgumentNullException(nameof(logger));
            }

            string correlationId = Guid.NewGuid().ToString().ToUpperInvariant();
            string args = "Not presented";

            try
            {
                if(parameters != null)
                    args = parameters.ToString();
            }
            catch (Exception)
            {
                //Nothing to do because we need to continue app working
            }

            var stopwatch = new Stopwatch();
            stopwatch.Start();

            bool completedWithError = false;

            try
            {
                await logger.LogInformation($"Calling {actionName}.\nCorrelation Id: {correlationId}.\nParams: {args}.");

                TResult result = await action();

                return result;
            }
            catch (Exception ex)
            {
                completedWithError = true;

                await logger.LogException($"Calling Error {actionName}.\nCorrelation Id: {correlationId}.\nParams: {args}.\nExecution time: {stopwatch.Elapsed.TotalSeconds} sec.", ex);

                throw;
            }
            finally
            {
                string errorExist = completedWithError ? "with errors." : "without errors.";
                await logger.LogInformation($"Calling completed {actionName} {errorExist}.\nCorrelation Id: {correlationId}.\nParams: {args}.\nExecution time: {stopwatch.Elapsed.TotalSeconds} sec.");
            }
        }
    }
}