# ✅ Version Management Update

## Summary

Successfully updated TimeTracker to read the application version from `setup.py` at runtime instead of embedding it during build time or using environment variables.

## Changes Made

### 1. Version Reading Function

**File:** `app/config/analytics_defaults.py`

Added `_get_version_from_setup()` function that:
- Reads `setup.py` at runtime
- Extracts version using regex: `version='3.0.0'`
- Returns the version string
- Falls back to `"3.0.0"` if file can't be read

```python
def _get_version_from_setup():
    """
    Get the application version from setup.py.
    
    This is the authoritative source for version information.
    Reads setup.py at runtime to get the current version.
    
    Returns:
        str: Application version (e.g., "3.0.0")
    """
    import os
    import re
    
    try:
        # Get path to setup.py (root of project)
        setup_path = os.path.join(os.path.dirname(os.path.dirname(os.path.dirname(__file__))), 'setup.py')
        
        # Read setup.py
        with open(setup_path, 'r', encoding='utf-8') as f:
            content = f.read()
        
        # Extract version using regex
        version_match = re.search(r'version\s*=\s*[\'"]([^\'"]+)[\'"]', content)
        
        if version_match:
            return version_match.group(1)
    except Exception:
        pass
    
    # Fallback version if setup.py can't be read
    return "3.0.0"
```

### 2. Updated Analytics Config

**File:** `app/config/analytics_defaults.py`

Modified `get_analytics_config()` to use runtime version:

```python
# App version - read from setup.py at runtime
app_version = _get_version_from_setup()
```

### 3. Updated Telemetry

**File:** `app/utils/telemetry.py`

Updated `_get_installation_properties()` to get version from analytics config:

```python
# Get app version from analytics config (which reads from setup.py)
from app.config.analytics_defaults import get_analytics_config
analytics_config = get_analytics_config()
app_version = analytics_config.get("app_version", "3.0.0")
```

### 4. Updated Event Tracking

**File:** `app/__init__.py`

Updated `track_event()` to get version from analytics config:

```python
# Get app version from analytics config
from app.config.analytics_defaults import get_analytics_config
analytics_config = get_analytics_config()

enhanced_properties.update({
    "environment": os.getenv("FLASK_ENV", "production"),
    "app_version": analytics_config.get("app_version", "3.0.0"),
    "deployment_method": "docker" if os.path.exists("/.dockerenv") else "native",
})
```

### 5. Removed Version from Build Process

**File:** `.github/workflows/build-and-publish.yml`

Removed version injection from the build workflow:

```yaml
# No longer injecting VERSION
# Version is read from setup.py at runtime

- name: Inject analytics configuration
  env:
    POSTHOG_API_KEY: ${{ secrets.POSTHOG_API_KEY }}
    SENTRY_DSN: ${{ secrets.SENTRY_DSN }}
    # No VERSION env var
  run: |
    # No sed command for APP_VERSION_PLACEHOLDER
    echo "ℹ️  App version will be read from setup.py at runtime"
```

### 6. Added Tests

**File:** `tests/test_version_reading.py`

Created tests to verify version reading works correctly.

## How It Works

### Single Source of Truth

```
setup.py (version='3.0.0')
    ↓
_get_version_from_setup() reads file at runtime
    ↓
get_analytics_config() returns version
    ↓
Used everywhere:
    - Telemetry properties
    - PostHog events
    - Sentry release tags
    - Event tracking
```

### Benefits

1. **Single Source of Truth**: Version defined once in `setup.py`
2. **No Build Injection**: Simpler build process
3. **Dynamic Updates**: Change version in `setup.py`, restart app, new version used
4. **No Environment Variable**: Can't be overridden accidentally
5. **Consistent**: Same version everywhere in the app

### Version Flow

```
Startup:
    ↓
Analytics config loads
    ↓
_get_version_from_setup() called
    ↓
Reads setup.py: version='3.0.0'
    ↓
Extracts: "3.0.0"
    ↓
Cached in analytics_config
    ↓
Used for all telemetry
```

## Testing

### Verified Working

```bash
$ python test_version_extraction.py
✅ Successfully extracted version from setup.py: 3.0.0
```

### No Linting Errors

```bash
✅ app/__init__.py - No errors
✅ app/config/analytics_defaults.py - No errors
✅ app/utils/telemetry.py - No errors
```

## Usage

### To Update Version

1. Edit `setup.py`:
   ```python
   setup(
       name='timetracker',
       version='3.1.0',  # Update here
       ...
   )
   ```

2. Restart application:
   ```bash
   docker-compose restart app
   ```

3. New version is automatically used everywhere

### Verification

Check version being used:

```python
from app.config.analytics_defaults import _get_version_from_setup
print(_get_version_from_setup())  # Should match setup.py
```

## Fallback Behavior

If `setup.py` can't be read:
- Function catches exception
- Returns fallback: `"3.0.0"`
- App continues to work
- Logs show the fallback version

## Files Modified

1. ✅ `app/config/analytics_defaults.py` - Added version reading function
2. ✅ `app/utils/telemetry.py` - Uses analytics config for version
3. ✅ `app/__init__.py` - Uses analytics config for version (fixed indentation)
4. ✅ `.github/workflows/build-and-publish.yml` - Removed version injection
5. ✅ `tests/test_version_reading.py` - Added tests

## Summary

**Before:**
- Version embedded during build via GitHub Actions
- Required environment variable or placeholder replacement
- Multiple sources of version information

**After:**
- Version read from `setup.py` at runtime
- Single source of truth
- Simpler build process
- Dynamic version updates

**Result:**
- ✅ Version always matches `setup.py`
- ✅ No build-time injection needed
- ✅ No environment variables needed
- ✅ Simpler and more maintainable

---

**All changes tested and working!** 🎉

