feat: 新增新手任务

Yi.Abp.Net8/module/bbs/Yi.Framework.Bbs.Domain/Managers/AssignmentProviders/Impl/NoviceProvider.cs

@@ -1,16 +1,57 @@
-using Yi.Framework.Bbs.Domain.Entities.Assignment;
+using SqlSugar;
+using Volo.Abp.DependencyInjection;
+using Yi.Framework.Bbs.Domain.Entities.Assignment;
+using Yi.Framework.Bbs.Domain.Shared.Enums;
 
 namespace Yi.Framework.Bbs.Domain.Managers.AssignmentProviders;
 
 /// <summary>
 ///     新手任务提供者
 /// </summary>
- public class NoviceProvider  : IAssignmentProvider
+[ExposeServices(typeof(IAssignmentProvider))]
+public class NoviceProvider : IAssignmentProvider
 {
     public async Task<List<AssignmentDefineAggregateRoot>> GetCanReceiveListAsync(AssignmentContext context)
     {
+        List<AssignmentDefineAggregateRoot> output = new List<AssignmentDefineAggregateRoot>();
         //新手任务是要有前置依赖关系的，链表类型依赖
-         throw new NotImplementedException();
-      
+        //先获取到对应任务定义列表，新手任务
+        var assignmentDefines = context.AllAssignmentDefine.Where(x => x.AssignmentType == AssignmentTypeEnum.Novice)
+            .ToList();
+
+        //根路径
+        var rootAssignmentDefine = assignmentDefines.Where(x => x.PreAssignmentId == null).FirstOrDefault();
+        //代表没有定义新手任务
+        if (rootAssignmentDefine is null)
+        {
+            return output;
+        }
+
+        //1：查询该用户有正在进行的新手任务，如果有跳过
+        if (context.CurrentUserAssignments.Any(x => x.AssignmentState == AssignmentStateEnum.Progress))
+        {
+            return output;
+        }
+
+        //2: 查询该用户是否有完成的新手任务，如果有，则根据链表选择最后的节点
+        var assignmentFilterIds = context.CurrentUserAssignments
+            .Where(x =>
+                //已经完成的
+                x.AssignmentState == AssignmentStateEnum.Completed
+            )
+            .Select(x => x.AssignmentDefineId)
+            .ToList();
+
+        //该用户接受的最后一个新手任务
+        var lastAssignment = assignmentDefines.Where(x => assignmentFilterIds.Contains(x.Id))
+            .OrderByDescending(x => x.OrderNum).First();
+
+        //包含比该用户还要大的任务
+        if (assignmentDefines.Any(x => x.OrderNum > lastAssignment.OrderNum))
+        {
+            output.Add(assignmentDefines.FirstOrDefault(x => x.OrderNum == lastAssignment.OrderNum + 1));
+        }
+
+        return output;
     }
 }