feat: Add issue commenting for PR creation and push failures

aider_gitea/__init__.py

@@ -229,9 +229,24 @@ def push_changes(
 
     # First push the branch without creating a PR
     cmd = ['git', 'push', 'origin', branch_name, '--force']
-    run_cmd(cmd, cwd)
+    push_success = run_cmd(cmd, cwd, check=False)
+    
+    if not push_success:
+        error_message = f"Failed to push branch `{branch_name}`. The changes could not be uploaded to the repository."
+        logger.error(error_message)
+        try:
+            gitea_client.create_issue_comment(
+                owner=owner,
+                repo=repo,
+                issue_number=issue_number,
+                body=f"❌ **Automated Solution Failed**\n\n{error_message}\n\nPlease check repository permissions and try again."
+            )
+        except Exception as e:
+            logger.exception(f"Failed to comment on issue #{issue_number} after push failure: {e}")
+        return False
 
     # Then create the PR with the aider label
+    try:
         gitea_client.create_pull_request(
             owner=owner,
             repo=repo,
@@ -242,6 +257,20 @@ def push_changes(
             labels=['aider'],
         )
         return True
+    except Exception as e:
+        error_message = f"Failed to create pull request for branch `{branch_name}`. The changes were pushed but the PR could not be created."
+        logger.exception(f"{error_message}: {e}")
+        try:
+            gitea_client.create_issue_comment(
+                owner=owner,
+                repo=repo,
+                issue_number=issue_number,
+                body=f"⚠️ **Partial Automation Success**\n\n{error_message}\n\n"
+                     f"The changes are available in the branch `{branch_name}`, but you'll need to create the PR manually."
+            )
+        except Exception as comment_error:
+            logger.exception(f"Failed to comment on issue #{issue_number} after PR creation failure: {comment_error}")
+        return False
 
 
 def has_commits_on_branch(cwd: Path, base_branch: str, current_branch: str) -> bool:

aider_gitea/gitea_client.py

@@ -168,3 +168,25 @@ class GiteaClient:
         response = self.session.post(url, json=json_data)
         response.raise_for_status()
         return response.json()
+        
+    def create_issue_comment(self, owner: str, repo: str, issue_number: str, body: str) -> dict:
+        """Create a comment on an issue.
+        
+        Args:
+            owner (str): Owner of the repository.
+            repo (str): Name of the repository.
+            issue_number (str): The issue number to comment on.
+            body (str): The content of the comment.
+            
+        Returns:
+            dict: The created comment data.
+            
+        Raises:
+            requests.HTTPError: If the API request fails.
+        """
+        url = f'{self.gitea_url}/repos/{owner}/{repo}/issues/{issue_number}/comments'
+        json_data = {'body': body}
+        
+        response = self.session.post(url, json=json_data)
+        response.raise_for_status()
+        return response.json()

test/test_issue_comment_on_failure.py

@@ -0,0 +1,83 @@
+import pytest
+from unittest.mock import MagicMock, patch
+from pathlib import Path
+
+from aider_gitea import push_changes
+
+
+class TestIssueCommentOnFailure:
+    def setup_method(self):
+        self.cwd = Path('/tmp/test-repo')
+        self.branch_name = 'issue-123-test-branch'
+        self.issue_number = '123'
+        self.issue_title = 'Test Issue'
+        self.base_branch = 'main'
+        self.gitea_client = MagicMock()
+        self.owner = 'test-owner'
+        self.repo = 'test-repo'
+        
+    @patch('aider_gitea.has_commits_on_branch', return_value=True)
+    @patch('aider_gitea.get_commit_messages', return_value=['Test commit'])
+    @patch('aider_gitea.run_cmd')
+    def test_comment_on_push_failure(self, mock_run_cmd, mock_get_commit_messages, mock_has_commits):
+        # Setup run_cmd to fail on git push
+        mock_run_cmd.return_value = False
+        
+        # Call push_changes
+        result = push_changes(
+            self.cwd,
+            self.branch_name,
+            self.issue_number,
+            self.issue_title,
+            self.base_branch,
+            self.gitea_client,
+            self.owner,
+            self.repo
+        )
+        
+        # Verify result is False
+        assert result is False
+        
+        # Verify create_issue_comment was called with appropriate message
+        self.gitea_client.create_issue_comment.assert_called_once()
+        args, _ = self.gitea_client.create_issue_comment.call_args
+        assert args[0] == self.owner
+        assert args[1] == self.repo
+        assert args[2] == self.issue_number
+        assert "Failed to push branch" in args[3]
+        assert "❌ **Automated Solution Failed**" in args[3]
+        
+    @patch('aider_gitea.has_commits_on_branch', return_value=True)
+    @patch('aider_gitea.get_commit_messages', return_value=['Test commit'])
+    @patch('aider_gitea.run_cmd')
+    def test_comment_on_pr_creation_failure(self, mock_run_cmd, mock_get_commit_messages, mock_has_commits):
+        # Setup run_cmd to succeed on git push
+        mock_run_cmd.return_value = True
+        
+        # Setup create_pull_request to fail
+        self.gitea_client.create_pull_request.side_effect = Exception("PR creation failed")
+        
+        # Call push_changes
+        result = push_changes(
+            self.cwd,
+            self.branch_name,
+            self.issue_number,
+            self.issue_title,
+            self.base_branch,
+            self.gitea_client,
+            self.owner,
+            self.repo
+        )
+        
+        # Verify result is False
+        assert result is False
+        
+        # Verify create_issue_comment was called with appropriate message
+        self.gitea_client.create_issue_comment.assert_called_once()
+        args, _ = self.gitea_client.create_issue_comment.call_args
+        assert args[0] == self.owner
+        assert args[1] == self.repo
+        assert args[2] == self.issue_number
+        assert "Failed to create pull request" in args[3]
+        assert "⚠️ **Partial Automation Success**" in args[3]
+        assert self.branch_name in args[3]