using Data.SeaHavenIndustries;
using Data.SeaHavenIndustries.Enums;

namespace SeaHaven.Services.DTOs
{
    public class WorkOrderDTO
    {
        public int Id { get; set; }
        public string? InternalWONumber { get; set; }
        public string? WorkerOrderTitle { get; set; }
        public string? Description { get; set; }
        public WorkOrderStatus Status { get; set; }
        public WorkOrderPriority Priority { get; set; }
        public int? LocationId { get; set; }
        public string? LocationName { get; set; }
        public string? AssignTo { get; set; }
        public DateTime? DueDate { get; set; }
        public DateTime? CompletedDate { get; set; }
        public DateTime? CreatedDate { get; set; }
        public string? CreatedBy { get; set; }
        public DateTime? ModifiedDate { get; set; }
        public string? ModifiedBy { get; set; }

        /// <summary>
        /// Maps entity to DTO (Entity -> DTO)
        /// </summary>
        public static WorkOrderDTO MapToModel(WorkOrder entity)
        {
            if (entity == null) return null;

            return new WorkOrderDTO
            {
                Id = entity.Id,
                InternalWONumber = entity.InternalWONumber,
                WorkerOrderTitle = entity.WorkerOrderTitle,
                Description = entity.Description,
                Status = Enum.TryParse<WorkOrderStatus>(entity.Status, out var status) ? status : WorkOrderStatus.Open,
                Priority = Enum.TryParse<WorkOrderPriority>(entity.Priority, out var priority) ? priority : WorkOrderPriority.Medium,
                LocationId = entity.LocationId,
                LocationName = null,
                AssignTo = entity.AssignTo,
                DueDate = entity.DueDate,
                CompletedDate = entity.CompletedDate,
                CreatedDate = entity.CreatedDate,
                CreatedBy = entity.createdby,
                ModifiedDate = entity.LastModificationTime,
                ModifiedBy = entity.LastModifierUserId?.ToString()
            };
        }

        /// <summary>
        /// Maps DTO to entity (DTO -> Entity)
        /// </summary>
        public static WorkOrder MapToEntity(WorkOrderDTO dto)
        {
            if (dto == null) return null;

            return new WorkOrder
            {
                Id = dto.Id,
                InternalWONumber = dto.InternalWONumber,
                WorkerOrderTitle = dto.WorkerOrderTitle,
                Description = dto.Description,
                Status = dto.Status.ToString(),
                Priority = dto.Priority.ToString(),
                LocationId = dto.LocationId,
                AssignTo = dto.AssignTo,
                DueDate = dto.DueDate,
                CompletedDate = dto.CompletedDate
            };
        }
    }

    public class CreateWorkOrderDTO
    {
        public required string WorkerOrderTitle { get; set; }
        public string? Description { get; set; }
        public WorkOrderStatus? Status { get; set; }
        public WorkOrderPriority? Priority { get; set; }
        public int? LocationId { get; set; }
        public string? AssignTo { get; set; }
        public DateTime? DueDate { get; set; }
        /// <summary>Optional CRM customer name for org-wide AccountId resolution.</summary>
        public string? Customer { get; set; }

        public static WorkOrder MapToEntity(CreateWorkOrderDTO dto)
        {
            if (dto == null) return null!;

            return new WorkOrder
            {
                WorkerOrderTitle = dto.WorkerOrderTitle,
                Description = dto.Description,
                Status = (dto.Status ?? WorkOrderStatus.Open).ToString(),
                Priority = (dto.Priority ?? WorkOrderPriority.Medium).ToString(),
                LocationId = dto.LocationId,
                AssignTo = dto.AssignTo,
                DueDate = dto.DueDate,
                Customer = string.IsNullOrWhiteSpace(dto.Customer) ? null : dto.Customer.Trim(),
                CreatedDate = DateTime.UtcNow
            };
        }
    }

    public class UpdateWorkOrderDTO
    {
        public string? WorkerOrderTitle { get; set; }
        public string? Description { get; set; }
        public WorkOrderStatus? Status { get; set; }
        public WorkOrderPriority? Priority { get; set; }
        public int? LocationId { get; set; }
        public string? AssignTo { get; set; }
        public DateTime? DueDate { get; set; }
        public DateTime? CompletedDate { get; set; }

        public static void UpdateEntity(UpdateWorkOrderDTO dto, WorkOrder entity)
        {
            if (dto == null || entity == null) return;

            if (dto.WorkerOrderTitle != null) entity.WorkerOrderTitle = dto.WorkerOrderTitle;
            if (dto.Description != null) entity.Description = dto.Description;
            if (dto.Status.HasValue) entity.Status = dto.Status.ToString()!;
            if (dto.Priority.HasValue) entity.Priority = dto.Priority.ToString()!;
            if (dto.LocationId.HasValue) entity.LocationId = dto.LocationId;
            if (dto.AssignTo != null) entity.AssignTo = dto.AssignTo;
            if (dto.DueDate.HasValue) entity.DueDate = dto.DueDate;
            if (dto.CompletedDate.HasValue) entity.CompletedDate = dto.CompletedDate;

            entity.LastModificationTime = DateTime.UtcNow;
        }
    }
}