104 lines
3.7 KiB
C#
104 lines
3.7 KiB
C#
using Volo.Abp.Domain.Services;
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using Yi.Framework.SqlSugarCore.Abstractions;
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using Yi.Framework.Stock.Domain.Entities;
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using Yi.Framework.Stock.Domain.Managers.SemanticKernel;
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using Yi.Framework.Stock.Domain.Managers.SemanticKernel.Plugins;
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using System.Text;
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namespace Yi.Framework.Stock.Domain.Managers;
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public class NewsManager:DomainService
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{
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private SemanticKernelClient _skClient;
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private ISqlSugarRepository<StockNewsAggregateRoot> _newsRepository;
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public NewsManager(SemanticKernelClient skClient,ISqlSugarRepository<StockNewsAggregateRoot> newsRepository)
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{
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_skClient = skClient;
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_newsRepository = newsRepository;
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}
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/// <summary>
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/// 获取最近的新闻
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/// </summary>
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/// <param name="count">获取数量</param>
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/// <returns>最近的新闻列表</returns>
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public async Task<List<StockNewsAggregateRoot>> GetRecentNewsAsync(int count = 10)
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{
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return await _newsRepository._DbQueryable
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.OrderByDescending(n => n.CreationTime)
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.Take(count)
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.Select(n => new StockNewsAggregateRoot
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{
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Title = n.Title,
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Summary = n.Summary,
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Source = n.Source,
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CreationTime = n.CreationTime
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})
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.ToListAsync();
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}
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/// <summary>
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/// 生成一个新闻
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/// </summary>
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/// <returns></returns>
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public async Task GenerateNewsAsync()
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{
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// 获取最近10条新闻
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var recentNews = await GetRecentNewsAsync(10);
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// 构建新闻背景上下文
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var newsContext = new StringBuilder();
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if (recentNews.Any())
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{
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newsContext.AppendLine("以下是最近的新闻简介：");
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foreach (var news in recentNews)
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{
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newsContext.AppendLine($"- {news.CreationTime:yyyy-MM-dd} 来源：{news.Source}");
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newsContext.AppendLine($" 标题：{news.Title}");
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newsContext.AppendLine($" 简介：{news.Summary}");
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newsContext.AppendLine();
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}
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}
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else
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{
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newsContext.AppendLine("目前没有最近的新闻记录。");
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}
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var question = $$"""
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基于以下最近的新闻背景，生成一条新的股市相关新闻。
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{{newsContext}}
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请生成一条有关联性的新闻，包含以下要素：
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1. 新闻标题：吸引人且与股市、金融或经济相关
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2. 新闻内容：详细且符合逻辑的报道，篇幅适中
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3. 新闻简介：简明扼要的总结
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4. 新闻来源：提供一个可信的媒体或机构名称
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注意：
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- 新闻内容应当与前面的新闻有一定关联性
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- 内容应当暗示可能对股市产生某种影响（积极或消极）
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- 行业焦点可以包括娱乐、科技、能源、金融等多个领域
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- 只需生成一次即可
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""";
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await _skClient.ChatCompletionAsync(question, ("NewsPlugins","save_news"));
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}
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public async Task SaveNewsAsync(NewsModel news)
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{
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var newsEntity = new StockNewsAggregateRoot(
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title: news.Title,
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content: news.Content,
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source: news.Source
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)
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{
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Summary = news.Summary,
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CreationTime = DateTime.Now,
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IsDeleted = false,
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OrderNum = 0
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};
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await _newsRepository.InsertAsync(newsEntity);
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}
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} |