using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace CPRNIMS.Infrastructure.Dto.Inventory.Reports
{
    public class RISReportDto
    {
        public string CompanyName { get; set; } = "Lloyd Laboratories Incorporated";
        public string PreparedBy { get; set; } = "Finance Department";
        public string ReportNo { get; set; } = string.Empty;
        public DateTime DateFrom { get; set; }
        public DateTime DateTo { get; set; }

        public RISReportSummary Summary { get; set; } = new();
        public List<RISReportRow> Rows { get; set; } = [];
        public List<DisciplineCount> ByDiscipline { get; set; } = [];
        public List<TopRecipient> TopRecipients { get; set; } = [];
    }

    public class RISReportSummary
    {
        public int TotalRIS { get; set; }
        public int TotalApproved { get; set; }
        public int TotalPending { get; set; }
        public int TotalCancelled { get; set; }
        public decimal TotalQtyIssued { get; set; }
        public decimal TotalQtyReturned { get; set; }
        public decimal TotalNetIssued { get; set; }
        public decimal ApprovalRatePct { get; set; }
    }

    public class RISReportRow
    {
        public string RISNo { get; set; } = string.Empty;
        public DateTime CreatedDate { get; set; }
        public string ItemName { get; set; } = string.Empty;
        public long ItemNo { get; set; }
        public string DisciplineName { get; set; } = string.Empty;
        public string ProjectName { get; set; } = string.Empty;
        public decimal QtyIssued { get; set; }
        public decimal TotalReturned { get; set; }
        public decimal NetIssued { get; set; }
        public short Status { get; set; }
        public string StatusLabel { get; set; } = string.Empty;
    }

    public class DisciplineCount
    {
        public string DisciplineName { get; set; } = string.Empty;
        public int Count { get; set; }
    }

    public class TopRecipient
    {
        public string IssuedTo { get; set; } = string.Empty;
        public int SlipCount { get; set; }
        public decimal TotalQty { get; set; }
    }

    public class MRSReportDto
    {
        public string CompanyName { get; set; } = "Lloyd Laboratories Incorporated";
        public string PreparedBy { get; set; } = "Finance Department";
        public string ReportNo { get; set; } = string.Empty;
        public DateTime DateFrom { get; set; }
        public DateTime DateTo { get; set; }

        public MRSReportSummary Summary { get; set; } = new();
        public List<MRSReportRow> Rows { get; set; } = [];
        public List<ConditionTotal> ByCondition { get; set; } = [];
    }

    public class MRSReportSummary
    {
        public int TotalMRS { get; set; }
        public decimal TotalQtyReturned { get; set; }
        public decimal TotalQtyIssuedRIS { get; set; }
        public decimal NetQtyConsumed { get; set; }
        public decimal ReturnRatePct { get; set; }
        public decimal GoodConditionPct { get; set; }
    }

    public class MRSReportRow
    {
        public string MRSNo { get; set; } = string.Empty;
        public DateTime CreatedDate { get; set; }
        public string RISNo { get; set; } = string.Empty;
        public string ItemName { get; set; } = string.Empty;
        public string ReturnedBy { get; set; } = string.Empty;
        public decimal QtyReturned { get; set; }
        public string Condition { get; set; } = string.Empty;
        public short Status { get; set; }
        public string StatusLabel { get; set; } = string.Empty;
    }

    public class ConditionTotal
    {
        public string Condition { get; set; } = string.Empty;
        public decimal TotalQty { get; set; }
    }

    public class InventoryReportDto
    {
        public string CompanyName { get; set; } = "Lloyd Laboratories Incorporated";
        public string PreparedBy { get; set; } = "Finance Department";
        public string ReportNo { get; set; } = string.Empty;
        public DateTime AsOf { get; set; }

        public InventoryReportSummary Summary { get; set; } = new();
        public List<InventoryReportRow> Rows { get; set; } = [];
        public List<CategoryStockLevel> ByCategory { get; set; } = [];
        public List<InventoryAlert> Alerts { get; set; } = [];
    }

    public class InventoryReportSummary
    {
        public int TotalSKUs { get; set; }
        public decimal TotalOnHand { get; set; }
        public decimal TotalQtyIn { get; set; }
        public decimal TotalQtyOut { get; set; }
        public decimal TotalValue {  get; set; }
        public int LowStockCount { get; set; }
        public int OutOfStockCount { get; set; }
    }

    public class InventoryReportRow
    {
        public string ItemName { get; set; } = string.Empty;
        public long ItemNo { get; set; }
        public string ItemCategoryName { get; set; } = string.Empty;
        public string? LotNo { get; set; }
        public decimal QtyIn { get; set; }
        public decimal QtyOut { get; set; }
        public decimal QtyOnHand { get; set; }
        public decimal UnitPrice { get; set; }
        public int StockPct { get; set; }
    }

    public class CategoryStockLevel
    {
        public string CategoryName { get; set; } = string.Empty;
        public int AvgStockPct { get; set; }
    }

    public class InventoryAlert
    {
        public string ItemName { get; set; } = string.Empty;
        public decimal QtyOnHand { get; set; }
        public string Severity { get; set; } = string.Empty; // "Critical" | "Low"
    }
}