using System;
using System.Collections.Generic;

namespace ODCWeb.Models.ViewModels
{
    public class BudgetMonitorViewModel
    {
        public ODCProject Project { get; set; }
        public BudgetSummaryViewModel ProjectSummary { get; set; }
        public List<BudgetActionGroupViewModel> ActionGroups { get; set; }
    }

    public class BudgetSummaryViewModel
    {
        // Calculated Budget (Original)
        public double TotalLaborCost { get; set; }
        public double TotalMaterialCost { get; set; }
        public double TotalCalculatedBudget { get; set; }

        // Modified Budget (Projected)
        public double TotalProjectedLaborCost { get; set; }
        public double TotalProjectedMaterialCost { get; set; }
        public double TotalProjectedBudget { get; set; }

        // Actual Budget
        public double TotalActualLaborCost { get; set; }
        public double TotalActualMaterialCost { get; set; }
        public double TotalBudgetLeft { get; set; }
        public double TotalProfitLoss { get; set; }

        // Variances
        public double CalculatedVsProjected { get; set; }
        public double ProjectedVsActual { get; set; }

        // Completion
        public int TotalTasks { get; set; }
        public int CompletedTasks { get; set; }
        public int InProgressTasks { get; set; }
        public int NotStartedTasks { get; set; }
        public double AverageCompletion { get; set; }

        // Calculated Properties
        public double OverallBudgetPerformance => TotalProjectedBudget > 0
            ? ((TotalBudgetLeft / TotalProjectedBudget) * 100)
            : 0;

        public string BudgetHealthStatus
        {
            get
            {
                if (TotalProfitLoss > 0) return "Profitable";
                if (TotalProfitLoss == 0) return "On Budget";
                if (TotalBudgetLeft > TotalProjectedBudget * 0.1) return "Under Budget";
                if (TotalBudgetLeft > 0) return "At Risk";
                return "Over Budget";
            }
        }
    }

    public class BudgetActionGroupViewModel
    {
        public FloorAction Action { get; set; }
        public Floor Floor { get; set; }
        public List<ActionTask> Tasks { get; set; }

        public double TotalLaborCost => Tasks.Sum(t => t.Labor_Cost ?? 0);
        public double TotalMaterialCost => Tasks.Sum(t => t.Material_Cost ?? 0);
        public double TotalCalculatedBudget => Tasks.Sum(t => t.Mat_Lab ?? 0);
        public double TotalProjectedBudget => Tasks.Sum(t => t.M_Budget ?? 0);
        public double TotalActualCost => Tasks.Sum(t => (t.A_Labor_Cost ?? 0) + (t.A_Mat_Cost ?? 0));
        public double TotalBudgetLeft => Tasks.Sum(t => t.A_Budget_Left ?? 0);
        public double TotalProfitLoss => Tasks.Sum(t => t.T_Profit_Loss ?? 0);
        public double AverageCompletion => Tasks.Any() ? Tasks.Average(t => t.Completion ?? 0) : 0;
    }
}