feat(gitea): add issue comment list API

Co-Authored-By: Virgil <virgil@lethean.io>

gitea/issues.go

@@ -133,6 +133,31 @@ func (c *Client) CreateIssue(owner, repo string, opts gitea.CreateIssueOption) (
 	return issue, nil
 }
 
+// ListIssueComments returns all comments for an issue.
+// Usage: ListIssueComments(...)
+func (c *Client) ListIssueComments(owner, repo string, number int64) ([]*gitea.Comment, error) {
+	var all []*gitea.Comment
+	page := 1
+
+	for {
+		comments, resp, err := c.api.ListIssueComments(owner, repo, number, gitea.ListIssueCommentOptions{
+			ListOptions: gitea.ListOptions{Page: page, PageSize: commentPageSize},
+		})
+		if err != nil {
+			return nil, log.E("gitea.ListIssueComments", "failed to list comments", err)
+		}
+
+		all = append(all, comments...)
+
+		if resp == nil || page >= resp.LastPage {
+			break
+		}
+		page++
+	}
+
+	return all, nil
+}
+
 // ListPullRequests returns pull requests for the given repository.
 // Usage: ListPullRequests(...)
 func (c *Client) ListPullRequests(owner, repo string, state string) ([]*gitea.PullRequest, error) {

gitea/issues_test.go

@@ -190,6 +190,27 @@ func TestClient_ListIssueCommentsIter_Good_Paginates_Good(t *testing.T) {
 	assert.Equal(t, "comment 51", bodies[50])
 }
 
+func TestClient_ListIssueComments_Good_Paginates_Good(t *testing.T) {
+	client, srv := newPaginatedCommentsClient(t)
+	defer srv.Close()
+
+	comments, err := client.ListIssueComments("test-org", "org-repo", 1)
+	require.NoError(t, err)
+	require.Len(t, comments, 51)
+	assert.Equal(t, "comment 1", comments[0].Body)
+	assert.Equal(t, "comment 50", comments[49].Body)
+	assert.Equal(t, "comment 51", comments[50].Body)
+}
+
+func TestClient_ListIssueComments_Bad_ServerError_Good(t *testing.T) {
+	client, srv := newErrorServer(t)
+	defer srv.Close()
+
+	_, err := client.ListIssueComments("test-org", "org-repo", 1)
+	assert.Error(t, err)
+	assert.Contains(t, err.Error(), "failed to list comments")
+}
+
 func TestClient_CreateIssue_Good(t *testing.T) {
 	client, srv := newTestClient(t)
 	defer srv.Close()