using System;
using System.Collections.Generic;
using System.Data.Common;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using FrameworkDAL.DTO.Code;
using FrameworkDAL.DTO.Project;
using FrameworkDAL.DTO.Role;
using FrameworkDAL.Query.Role;
using GB5Shared.DTO.Framework.Criteria;
using GB5Shared.DTO.Framework.Login;
using GB5Shared.QueryExecutor;
using GB5Shared.ResponseStandard;
using Newtonsoft.Json;

namespace FrameworkDAL.CustomCode.Role
{
    public class RoleDAL : IRoleDAL
    {
        private readonly IQueryExecutor _QueryExecutor;
        public RoleDAL(IQueryExecutor QueryExecutor)
        {
            _QueryExecutor = QueryExecutor;
        }


        public async Task<string> GetSelectListRole(CriteriaDTO CriteriaDTO, LoginDTO LoginDTO)
        {
            try
            {
                string SQL = RoleQB.GET_SELECTLIST_ROLE;
                var Result = await _QueryExecutor.QueryAsync<RolePicklistDTO>(LoginDTO, SQL, null!);
                string Json = JsonConvert.SerializeObject(Result);
                return Json;
            }
            catch (Exception)
            {
                throw;
            }
        }

        public async Task<Result<string>> SaveRole(RoleDTO RoleDTO, LoginDTO LoginDTO , DbTransaction Transaction)
        {
            try
            {
                RoleDTO.RoleCreatedById = LoginDTO.UserId;
                RoleDTO.RoleCreatedOn = DateTime.UtcNow;
                RoleDTO.RoleModifiedById = LoginDTO.UserId;
                RoleDTO.RoleModifiedOn = DateTime.UtcNow;
                string Sql = RoleQB.SAVE_ROLE;
                int result = await _QueryExecutor.ExecuteAsync(LoginDTO, Sql, RoleDTO, Transaction);

                if (result > 0)
                {
                    return Result<string>.Success("Role saved successfully.");
                }
                else
                {
                    return Result<string>.Failure("Failed to save role.");
                } 
            }
            catch (Exception)
            {
                throw;
            }
        }

        public async Task<Result<string>> UpdateRole(RoleDTO RoleDTO, LoginDTO LoginDTO , DbTransaction Transaction)
        {
            try
            {
                RoleDTO.RoleModifiedById = LoginDTO.UserId;
                RoleDTO.RoleModifiedOn = DateTime.UtcNow;
                string Sql = RoleQB.UPDATE_ROLE;
                int result = await _QueryExecutor.ExecuteAsync(LoginDTO, Sql, RoleDTO, Transaction);

                if (result > 0)
                {
                    return Result<string>.Success("Role Updated successfully.");
                }
                else
                {
                    return Result<string>.Failure("Failed to save role.");
                }
            }
            catch (Exception)
            {
                throw;
            }
        }

        public async Task<string> GetRole(int RoleId, LoginDTO LoginDTO)
        {
            string Json = "";
            try
            {
                string sql = RoleQB.GET_ROLE;
                var parameters = new { Roleid = RoleId };
                RoleDTO RoleDTOs = await _QueryExecutor.QuerySingleAsync<RoleDTO>(LoginDTO, sql, parameters);
                Json = JsonConvert.SerializeObject(RoleDTOs);
                return Json;
            }
            catch (Exception)
            {
                throw;
            }
            finally
            {
                Json = null;
            }
        }

        public async Task<Result<string>> DeleteRole(int RoleId, LoginDTO LoginDTO)
        {
            try
            {
                string Sql = RoleQB.DELETE_ROLE;
                var parameter = new { Roleid = RoleId };
                var result = await _QueryExecutor.ExecuteAsync(LoginDTO, Sql, parameter);

                if (result > 0)
                {
                    return Result<string>.Success("Role Details Deleted Successfully.");
                }
                else
                {
                    return Result<string>.Failure("Role not found or could not be deleted.");
                }
            }
            catch (Exception ex)
            {
                throw new Exception("Error while deleting Role Details", ex);
            }
        }
    }
}