Repo Activity: count new issues that were closed (#31776)

I'm new to go and contributing to gitea, your guidance is much
appreciated.

This is meant to solve https://github.com/go-gitea/gitea/issues/13309

Previously, closed issues would not be shown under new issues in the
activity tab, even if they were newly created.

changes:
* Split out newlyCreatedIssues from issuesForActivityStatement to count
  both currently open and closed issues.
* Use a seperate function to count active issues to prevent
double-counting issues after the above change.

Result is that new issues that have been closed are shown both under
"new" and "closed".

Signed-off-by: Timon van der Berg <tmnvanderberg@gmail.com>

models/activities/repo_activity.go

@@ -34,6 +34,7 @@ type ActivityStats struct {
 	OpenedPRAuthorCount         int64
 	MergedPRs                   issues_model.PullRequestList
 	MergedPRAuthorCount         int64
+	ActiveIssues                issues_model.IssueList
 	OpenedIssues                issues_model.IssueList
 	OpenedIssueAuthorCount      int64
 	ClosedIssues                issues_model.IssueList
@@ -172,7 +173,7 @@ func (stats *ActivityStats) MergedPRPerc() int {
 
 // ActiveIssueCount returns total active issue count
 func (stats *ActivityStats) ActiveIssueCount() int {
-	return stats.OpenedIssueCount() + stats.ClosedIssueCount()
+	return len(stats.ActiveIssues)
 }
 
 // OpenedIssueCount returns open issue count
@@ -285,13 +286,21 @@ func (stats *ActivityStats) FillIssues(ctx context.Context, repoID int64, fromTi
 	stats.ClosedIssueAuthorCount = count
 
 	// New issues
-	sess = issuesForActivityStatement(ctx, repoID, fromTime, false, false)
+	sess = newlyCreatedIssues(ctx, repoID, fromTime)
 	sess.OrderBy("issue.created_unix ASC")
 	stats.OpenedIssues = make(issues_model.IssueList, 0)
 	if err = sess.Find(&stats.OpenedIssues); err != nil {
 		return err
 	}
 
+	// Active issues
+	sess = activeIssues(ctx, repoID, fromTime)
+	sess.OrderBy("issue.created_unix ASC")
+	stats.ActiveIssues = make(issues_model.IssueList, 0)
+	if err = sess.Find(&stats.ActiveIssues); err != nil {
+		return err
+	}
+
 	// Opened issue authors
 	sess = issuesForActivityStatement(ctx, repoID, fromTime, false, false)
 	if _, err = sess.Select("count(distinct issue.poster_id) as `count`").Table("issue").Get(&count); err != nil {
@@ -317,6 +326,23 @@ func (stats *ActivityStats) FillUnresolvedIssues(ctx context.Context, repoID int
 	return sess.Find(&stats.UnresolvedIssues)
 }
 
+func newlyCreatedIssues(ctx context.Context, repoID int64, fromTime time.Time) *xorm.Session {
+	sess := db.GetEngine(ctx).Where("issue.repo_id = ?", repoID).
+		And("issue.is_pull = ?", false).                // Retain the is_pull check to exclude pull requests
+		And("issue.created_unix >= ?", fromTime.Unix()) // Include all issues created after fromTime
+
+	return sess
+}
+
+func activeIssues(ctx context.Context, repoID int64, fromTime time.Time) *xorm.Session {
+	sess := db.GetEngine(ctx).Where("issue.repo_id = ?", repoID).
+		And("issue.is_pull = ?", false).
+		And("issue.created_unix >= ?", fromTime.Unix()).
+		Or("issue.closed_unix >= ?", fromTime.Unix())
+
+	return sess
+}
+
 func issuesForActivityStatement(ctx context.Context, repoID int64, fromTime time.Time, closed, unresolved bool) *xorm.Session {
 	sess := db.GetEngine(ctx).Where("issue.repo_id = ?", repoID).
 		And("issue.is_closed = ?", closed)