namespace Tiobon.Core.Services;

public class TiobonArticleServices : BaseServices<TiobonArticle>, ITiobonArticleServices
{
    AutoMapper.IMapper _mapper;
    public TiobonArticleServices(AutoMapper.IMapper mapper)
    {
        this._mapper = mapper;
    }
    /// <summary>
    /// 获取视图博客详情信息
    /// </summary>
    /// <param name="id"></param>
    /// <returns></returns>
    public async Task<TiobonViewModels> GetTiobonDetails(long id)
    {
        // 此处想获取上一条下一条数据，因此将全部数据list出来，有好的想法请提出
        //var Tiobonlist = await base.Query(a => a.IsDeleted==false, a => a.bID);
        var TiobonArticle = (await base.Query(a => a.bID == id && a.bcategory == "技术博文")).FirstOrDefault();

        TiobonViewModels models = null;

        if (TiobonArticle != null)
        {
            models = _mapper.Map<TiobonViewModels>(TiobonArticle);

            //要取下一篇和上一篇，以当前id开始，按id排序后top(2)，而不用取出所有记录
            //这样在记录很多的时候也不会有多大影响
            var nextTiobons = await base.Query(a => a.bID >= id && a.IsDeleted == false && a.bcategory == "技术博文", 2, "bID");
            if (nextTiobons.Count == 2)
            {
                models.next = nextTiobons[1].btitle;
                models.nextID = nextTiobons[1].bID;
            }
            var prevTiobons = await base.Query(a => a.bID <= id && a.IsDeleted == false && a.bcategory == "技术博文", 2, "bID desc");
            if (prevTiobons.Count == 2)
            {
                models.previous = prevTiobons[1].btitle;
                models.previousID = prevTiobons[1].bID;
            }

            TiobonArticle.btraffic += 1;
            await base.Update(TiobonArticle, new List<string> { "btraffic" });
        }

        return models;

    }


    /// <summary>
    /// 获取博客列表
    /// </summary>
    /// <returns></returns>
    [Caching(AbsoluteExpiration = 10)]
    public async Task<List<TiobonArticle>> GetTiobons()
    {
        var Tiobonlist = await base.Query(a => a.bID > 0, a => a.bID);

        return Tiobonlist;

    }
}