using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using CostingDAL.CustomCode.ResourceType;
using CostingDAL.DTO.ResourceType;
using GB5Shared.DTO.Framework.AutoNumber;
using GB5Shared.DTO.Framework.Criteria;
using GB5Shared.DTO.Framework.Login;
using GB5Shared.GenerateAutoNumber;
using GB5Shared.Resource.Response;
using GB5Shared.Validation;
using Newtonsoft.Json;

namespace CostingBLL.ResourceType
{
    public class ResourceTypeBLL : IResourceTypeBLL
    {
        private readonly IResourceTypeDAL _ResourceTypeDAL;
        private readonly AutoNumber _AutoNumber;
        private readonly IValidation _Validation;
        public ResourceTypeBLL(IResourceTypeDAL ResourceTypeDAL, AutoNumber AutoNumber, IValidation Validation)
        {
            _ResourceTypeDAL = ResourceTypeDAL;
            _AutoNumber = AutoNumber;
            _Validation = Validation;
        }

        public async Task<string> GetSelectListResourceType(CriteriaDTO criteriaDTO, LoginDTO loginDTO)
        {
            try
            {
                return await _ResourceTypeDAL.GetSelectListResourceType(criteriaDTO, loginDTO);
            }
            catch (Exception)
            {
                throw;
            }
        }

        public async Task<string> GetResourceType(int ResourceTypeId, LoginDTO LoginDTO)
        {
            try
            {
                return await _ResourceTypeDAL.GetResourceType( ResourceTypeId, LoginDTO);
            }
            catch (Exception)
            {
                throw;
            }
        }

        public async Task<string> SaveResourceType(ResourceTypeDTO ResourceTypeDTO, LoginDTO LoginDTO)
        {
            if (ResourceTypeDTO == null) throw new ArgumentNullException(nameof(ResourceTypeDTO));
            AutoNumberDTO? autoNumberDTO = null;

            try
            {
                await _Validation.NotEmpty(ResourceTypeDTO.ResourceTypeCode, nameof(ResourceTypeDTO.ResourceTypeCode));
                await _Validation.NotEmpty(ResourceTypeDTO.ResourceTypeName, nameof(ResourceTypeDTO.ResourceTypeName));
                ResourceTypeDTO.ResourceTypeModifiedById = LoginDTO.UserId;
                ResourceTypeDTO.ResourceTypeModifiedOn = DateTime.UtcNow;

                int initialId = ResourceTypeDTO.ResourceTypeId;
                int count = 1 + initialId;
                if (initialId == 0)
                {
                    AutoNumberDTO AutoNumberDTO = await _AutoNumber.GetNumberAsync(count, "RESOURCETYPE", LoginDTO);
                    ResourceTypeDTO.ResourceTypeId = AutoNumberDTO.StartNumber;
                    ResourceTypeDTO.ResourceTypeCreatedById = LoginDTO.UserId;
                    ResourceTypeDTO.ResourceTypeCreatedOn = DateTime.UtcNow;

                    await _ResourceTypeDAL.SaveResourceType(ResourceTypeDTO, LoginDTO);
                    return $"{SuccessResponse.SaveSuccessName} {ResourceTypeDTO.ResourceTypeName}";
                }
                else
                {
                    await _ResourceTypeDAL.UpdateResourceType(ResourceTypeDTO, LoginDTO);
                    return $"{SuccessResponse.UpdateSuccessName} {ResourceTypeDTO.ResourceTypeName}";
                }
            }
            catch (ValidationException vex)
            {
                throw new Exception(vex.Message);
            }
            catch (Exception)
            {
                if (autoNumberDTO != null && ResourceTypeDTO.ResourceTypeId > 0)
                    await _AutoNumber.RollbackAutoNumber("RESOURCETYPE", ResourceTypeDTO.ResourceTypeId, LoginDTO);

                throw;
            }
        }

        public async Task<string> DeleteResourceType(int ResourceTypeId, LoginDTO LoginDTO)
        {
            try
            {
                return await _ResourceTypeDAL.DeleteResourceType(ResourceTypeId, LoginDTO);
            }
            catch (Exception)
            {
                throw;
            }
        }
    }
}