using System;
using System.Collections.Generic;
using LCU.Library.Internal.IncentiveApiModels.Enums;
using LCU.Library.Internal.IncentiveApiModels.Common;

namespace LCU.Library.Internal.IncentiveApiModels.Entities
{
    public class PayoutLineItem : AuditCreate
    {
        public PayoutLineItem()
        {
        }

        public PayoutLineItem(Product product, PayoutProfile profile, int goalValue, decimal slidingPayout, IEnumerable<Activity> activities)
        {
            Product = product;
            PayoutProfileId = profile.Id;
            GoalValue = goalValue;
            SlidingPayout = slidingPayout;
            ApplyActivity(activities);
        }

        public PayoutLineItem(Product product, PayoutProfile profile, Goal goal, decimal slidingPayout, IEnumerable<Activity> activities, DateTime runDate)
        {
            Product = product;
            PayoutProfileId = profile.Id;
            GoalId = goal.Id;
            GoalValue = goal.Value;
            SlidingPayout = slidingPayout;
            ApplyActivity(activities);
            PayoutTotal = profile.CalculateLineItemPayout(GoalValue, ActivityTotal, runDate, SlidingPayout);
        }

        public PayoutLineItem(Product product, Commission commission, IEnumerable<Activity> activities)
        {
            Product = product;
            CommissionId = commission.Id;
            CommissionValue = commission.RatePerProduct;
            ApplyActivity(activities);
            PayoutTotal = ActivityTotal * CommissionValue;
            SlidingPayout = 100;
        }

        public int Id { get; set; }
        public Guid AppUserId { get; set; }
        public string EmployeeId { get; set; }
        public int DepartmentId { get; set; }
        public decimal SlidingPayout { get; set; }
        public Role Role { get; set; }
        public Product Product { get; set; }
        public DateTime ActivityPeriod { get; set; }
        public int GoalId { get; set; }
        public int GoalValue { get; set; }
        public int CommissionId { get; set; }
        public int CommissionValue { get; set; }
        public int PayoutProfileId { get; set; }
        public virtual IList<ActivityPayoutLineItem> ActivityPayouts { get; set; }
        public decimal ActivityTotal { get; set; }
        public decimal PayoutTotal { get; set; }

        private void ApplyActivity(IEnumerable<Activity> activities)
        {
            ActivityPayouts = new List<ActivityPayoutLineItem>();
            foreach (var activity in activities)
            {
                var payoutActivity = new ActivityPayoutLineItem
                {
                    Activity = activity,
                    PayoutLineItem = this
                };

                ActivityPayouts.Add(payoutActivity);
                if (activity.Product == Product)
                {
                    if (PayoutProfileId != 0)
                    {
                        ActivityTotal += Convert.ToDecimal(activity.CalculatedValueTowardsGoal(activity.Product));
                    }
                    else
                    {
                        ActivityTotal++;
                    }
                }
            }
        }
    }
}