# Task 3.0 Proof Artifacts: GitHub Prompt Download and Loading

## Test Results

### Full Test Suite

```bash
uv run pytest tests/ -v --tb=short
```

```text
============================= test session starts ==============================
platform linux -- Python 3.12.6, pytest-8.4.2, pluggy-1.5.0
collected 146 items

... (all tests pass)

============================= 146 passed in 0.82s ==============================
```

### GitHub Utility Tests

```bash
uv run pytest tests/test_github_utils.py -v
```

```text
============================= test session starts ==============================
platform linux -- Python 3.12.6, pytest-8.4.2, pluggy-1.5.0
collected 13 items

tests/test_github_utils.py::test_validate_github_repo_valid_formats PASSED [  7%]
tests/test_github_utils.py::test_validate_github_repo_invalid_format PASSED [ 15%]
tests/test_github_utils.py::test_validate_github_repo_error_message_includes_example PASSED [ 23%]
tests/test_github_utils.py::test_download_prompts_from_github_directory PASSED [ 30%]
tests/test_github_utils.py::test_download_prompts_from_github_single_file PASSED [ 38%]
tests/test_github_utils.py::test_download_prompts_from_github_single_file_non_markdown PASSED [ 46%]
tests/test_github_utils.py::test_download_prompts_from_github_empty_directory PASSED [ 53%]
tests/test_github_utils.py::test_download_prompts_from_github_filters_subdirectories PASSED [ 61%]
tests/test_github_utils.py::test_download_prompts_from_github_404_error PASSED [ 69%]
tests/test_github_utils.py::test_download_prompts_from_github_403_error PASSED [ 76%]
tests/test_github_utils.py::test_download_prompts_from_github_network_error PASSED [ 84%]
tests/test_github_utils.py::test_download_prompts_from_github_non_json_response PASSED [ 92%]
tests/test_github_utils.py::test_download_github_prompts_to_temp_dir PASSED [100%]

============================== 13 passed in 0.12s ===============================
```

### Writer Tests for GitHub

```bash
uv run pytest tests/test_writer.py::test_writer_loads_prompts_from_github tests/test_writer.py::test_writer_loads_single_file_from_github tests/test_writer.py::test_writer_github_api_error_handling -v
```

```text
============================= test session starts ==============================
platform linux -- Python 3.12.6, pytest-8.4.2, pluggy-1.5.0
collected 3 items

tests/test_writer.py::test_writer_loads_prompts_from_github PASSED       [ 33%]
tests/test_writer.py::test_writer_loads_single_file_from_github PASSED   [ 66%]
tests/test_writer.py::test_writer_github_api_error_handling PASSED       [100%]

============================== 3 passed in 0.08s ===============================
```

## Implementation Details

### GitHub API Functions

- `download_prompts_from_github()` - Downloads markdown files from GitHub repository
- `_download_github_prompts_to_temp_dir()` - Helper function to download to temp directory
- Handles both directory and single file paths
- Filters for `.md` files only
- Does not recursively process subdirectories
- Comprehensive error handling for 404, 403, and network errors

### Writer Integration

- `SlashCommandWriter` extended to accept `github_repo`, `github_branch`, `github_path` parameters
- `_load_prompts()` modified to check for GitHub parameters and download from GitHub if provided
- Uses `tempfile.TemporaryDirectory()` for automatic cleanup
- Falls back to local directory loading if GitHub parameters not provided

### CLI Integration

- CLI passes GitHub parameters to `SlashCommandWriter`
- Error handling for GitHub API errors with clear error messages
- Exit code 3 for I/O errors (GitHub API errors)

## Test Coverage

### GitHub Utility Tests

- ✅ Directory downloads
- ✅ Single file downloads
- ✅ Non-markdown file validation
- ✅ Empty directory handling
- ✅ Subdirectory filtering (no recursion)
- ✅ 404 error handling
- ✅ 403 error handling
- ✅ Network error handling
- ✅ Non-JSON response handling

### Writer Tests

- ✅ Loading prompts from GitHub directory
- ✅ Loading single file from GitHub
- ✅ GitHub API error handling

## Demo Validation

### Demo Criteria Met

✅ **Directory path on main branch**: Implementation supports downloading from directory paths

✅ **Directory path on branch with slashes**: Implementation supports branch names with slashes (e.g., `refactor/improve-workflow`)

✅ **Single file path**: Implementation supports downloading single `.md` files

✅ **Error handling**: Comprehensive error handling for GitHub API errors

✅ **Test coverage**: All required tests implemented and passing

## Files Created/Modified

- `slash_commands/github_utils.py` - Added `download_prompts_from_github()` and `_download_github_prompts_to_temp_dir()` functions
- `slash_commands/writer.py` - Extended to support GitHub parameters and download functionality
- `slash_commands/cli.py` - Added GitHub error handling
- `tests/test_github_utils.py` - Added comprehensive GitHub utility tests
- `tests/test_writer.py` - Added writer tests for GitHub functionality
