using SqlSugar;
using Yi.Framework.Infrastructure.Ddd.Dtos;
using Yi.Framework.Infrastructure.Ddd.Services;
using Yi.Furion.Application.App.Services;
using Yi.Furion.Core.App.Dtos.Trends;
using Yi.Furion.Core.App.Entities;

namespace Yi.Furion.Application.App.Services.Impl
{
    /// <summary>
    /// Trends服务实现
    /// </summary>
    [ApiDescriptionSettings("APP")]
    public class TrendsService : CrudAppService<TrendsEntity, TrendsGetOutputDto, TrendsGetListOutputDto, long, TrendsGetListInput, TrendsCreateInput, TrendsUpdateInputVo>,
       ITrendsService, IDynamicApiController, ITransient
    {
        /// <summary>
        /// 多查
        /// </summary>
        /// <param name="input"></param>
        /// <returns></returns>
        public override async Task<PagedResultDto<TrendsGetListOutputDto>> GetListAsync(TrendsGetListInput input)
        {
            var entity = await MapToEntityAsync(input);

            RefAsync<int> total = 0;

            var entities = await _DbQueryable
                          .WhereIF(input.StartTime is not null && input.EndTime is not null, x => x.CreationTime >= input.StartTime && x.CreationTime <= input.EndTime)
                          .OrderByDescending(x=>x.CreationTime)
                          .ToPageListAsync(input.PageNum, input.PageSize, total);
            return new PagedResultDto<TrendsGetListOutputDto>(total, await MapToGetListOutputDtosAsync(entities));
        }

        /// <summary>
        /// 发布文章
        /// </summary>
        /// <param name="input"></param>
        /// <returns></returns>
        public override Task<TrendsGetOutputDto> CreateAsync(TrendsCreateInput input)
        {
            if (string.IsNullOrEmpty(input.Title))
            {
                input.Title = input.Content.Substring(0, Math.Min(5, input.Content.Length));
            }
            return base.CreateAsync(input);
        }
    }
}