using System.Collections.Generic;

using System.Linq;

using System.Threading.Tasks;

​

public class PlanCapacity

{

}

​

public class HspcStaffing

{

    public static HspcStaffing defaultStaffing;

}

​

public class Plan

{

}

​

public class Program

{

    public async void Main()

    {

        await this.BuildPlanStaffingDataAsync(new List<PlanCapacity>(), null, "Outpatient");

        await this.BuildPlanStaffingDataAsync(new List<PlanCapacity>(), new Plan(), "Outpatient");

        await this.BuildPlanStaffingDataAsync(new List<PlanCapacity>(), new Plan(), "Primary");

    }

​

    public virtual async Task<List<HspcStaffing>> BuildPlanStaffingDataAsync(IEnumerable<PlanCapacity> capacity, Plan plan, string type)

    {

        if (plan == null)

        {

            return new List<HspcStaffing>{HspcStaffing.defaultStaffing};

        }

​

        return (List<HspcStaffing>)await this.CalculateStaffingAsync(capacity, plan, type);

    }

​

    public async Task<IEnumerable<HspcStaffing>> CalculateStaffingAsync(IEnumerable<PlanCapacity> capacity, Plan plan, string type)

    {

        if (type == "Outpatient")

        {

            return await Task.FromResult(new List<HspcStaffing>());

        }

        else

        {

            return await Task.FromResult(new List<HspcStaffing>());

        }

    }

}