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namespace DurableTask.Test.Orchestrations.Performance
{
    using System.Collections.Generic;
    using System.Linq;
    using System.Threading.Tasks;
    using DurableTask.Core;

    public class DriverOrchestration : TaskOrchestration<int, DriverOrchestrationData>
    {
        public override async Task<int> RunTask(OrchestrationContext context, DriverOrchestrationData data)
        {
            int result = 0;
            List<Task<int>> results = new List<Task<int>>();
            int i = 0;
            for (; i < data.NumberOfParallelOrchestrations; i++)
            {
                results.Add(context.CreateSubOrchestrationInstance<int>(typeof(TestOrchestration), data.SubOrchestrationData));
            }

            int[] counters = await Task.WhenAll(results.ToArray());
            result = counters.Sum();

            return result;
        }
    }
}
