added branch filter functionality, modified get commit functionality

BLL/CommitDetail.cs

@@ -4,6 +4,7 @@ public class CommitDetail
 {
     private List<string>? _authors;
     private SortedList<string, int>? _commitDetails;
+    private string _currentBranch;
 
     public List<string>? Authors 
     { 
@@ -17,13 +18,20 @@ public class CommitDetail
         set { _commitDetails = value; }
     }
 
+    public string CurrentBranch
+    {
+        get { return _currentBranch; }
+        set { _currentBranch = value; }
+    }
+
     public CommitDetail()
     {
         _authors = new List<string>();
         _commitDetails = new SortedList<string, int>();
+        _currentBranch = GetCurrentBranch();
     }
 
-    public void GetAllCommitsByName() 
+    public void GetCurrentCommitsByName() 
     {
         using (var repo = new Repository(Directory.GetCurrentDirectory()))
         {
@@ -43,7 +51,7 @@ public class CommitDetail
         }
     }
 
-    public void GetAllCommitsByEmail()
+    public void GetCurrentCommitsByEmail()
     {
         using (var repo = new Repository(Directory.GetCurrentDirectory()))
         {
@@ -70,4 +78,50 @@ public class CommitDetail
             return repo.Commits.Count();
         }
     }
+
+    public string GetCurrentBranch()
+    {
+        using (var repo = new Repository(Directory.GetCurrentDirectory()))
+        {
+            return repo.Head.Reference.TargetIdentifier;
+        }
+    }
+
+    public void GetCommitsByBranch(string branchName)
+    {
+        using (var repo = new Repository(Directory.GetCurrentDirectory()))
+        {
+            var branchResult = repo.Branches[branchName];
+
+            if (branchResult == null)
+            {
+                branchResult = repo.Branches[$"origin/{branchName}"];
+                var remoteBranch = repo.CreateBranch(branchName, branchResult.Tip);
+                repo.Branches.Update(remoteBranch, b => b.UpstreamBranch = $"refs/heads/{branchName}");
+            }
+
+            foreach (var c in branchResult.Commits)
+            {
+                if (!_authors.Contains(c.Author.Name))
+                {
+                    _authors.Add(c.Author.Name);
+                }
+            }
+            
+            foreach (var a in _authors)
+            {
+                int commitCount = branchResult.Commits.Where(r => r.Author.Name == a).Count();
+                _commitDetails.Add(a, commitCount);
+            }
+        }
+    }
+    
+    public void GetCommitsByTag(string tagName)
+    {
+        using (var repo = new Repository(Directory.GetCurrentDirectory()))
+        {
+            var tagResult = repo.Tags[tagName];
+            System.Console.WriteLine(tagResult);
+        }
+    }
 }