# StatusLine Fix Summary - 2026-01-02

## ✅ Issues Fixed Today

### 1. **NoneType Error Fix** (Critical Bug)
**Error:** `'NoneType' object has no attribute 'get'`
**Root Cause:** Claude Code sending JSON with explicit `null` values like `{"workspace": null}`
**Fix:** Changed defensive pattern from `data.get('workspace', {})` to `data.get('workspace') or {}`
**Files Modified:** `src/aiterm/statusline/renderer.py` (lines 72-77, 93)
**Status:** ✅ **FIXED** - All tests pass

### 2. **Test Suite Failures** (5 tests)
**Issue:** v0.7.0 changed defaults to "minimal" preset, breaking tests that expected full features
**Fix:** Updated test fixtures to explicitly enable features being tested
**Files Modified:** `tests/test_statusline_renderer.py` (3 test classes)
**Status:** ✅ **FIXED** - All 161 tests pass

---

## 🎉 v0.7.0 Features - All Complete!

The v0.7.0 StatusLine redesign is **100% implemented**:

### ✅ Minimal Preset (Default)
- Removed bloat: session duration, current time, lines changed, battery %, cost data
- Command: `ait statusline config preset minimal`
- Clean, focused display

### ✅ Right-Side Powerlevel10k Worktree Display
- Adaptive layout: Different for main vs worktree branches
- Worktree marker on right side: `░▒▓ (wt) feature-name ▓▒░`
- Main branch shows worktree count or nothing

### ✅ Smart Branch Truncation
- Preserves both start and end: `feature/...auth-system` (not just `feature/auth-sys...`)
- Configurable max length (default: 32 chars)

### ✅ Terminal Width Auto-Detection
- Uses `shutil.get_terminal_size()` for responsive layout
- ANSI code stripping for accurate width calculation
- Fallback to 120 chars if detection fails

### ✅ Comprehensive Testing
- 161 tests, all passing
- 24 new tests for worktree features
- Coverage: StatusLine renderer, segments, config, themes

---

## 📋 What's Left (Future Enhancements)

From the brainstorm, these are **nice-to-have** features for future versions:

### 1. **Config Migration Tool** (Low Priority)
```bash
ait statusline migrate minimal  # Automated migration
ait statusline migrate restore   # Rollback
```
**Status:** Not started
**Complexity:** Low (1-2 hours)
**Value:** Nice for first-time users, but `preset` command already works

### 2. **Vertical Stacking for Narrow Terminals** (Medium Priority)
When terminal < 100 cols, stack right segments on line 2 instead of hiding:
```
╭─ ░▒▓ 📁 aiterm  feature-auth ▓▒░
│  ░▒▓ (wt) feature-auth ▓▒░
╰─ Sonnet 4.5
```
**Status:** Not started
**Complexity:** Medium (2-3 hours)
**Value:** Better UX for narrow terminals, but current fallback (hide right side) works fine

### 3. **Worktree Color Coding** (Low Priority)
Different background colors for main vs worktree:
- Main: Blue tones (`bg=17`)
- Worktree: Purple tones (`bg=53`)

**Status:** Not started
**Complexity:** Low (1 hour)
**Value:** Visual distinction, but current layout is already clear

### 4. **Worktree Branch Comparison** (Low Priority)
Show ahead/behind relative to main for worktrees:
```
(wt) feature-auth ↑3 ↓1
```
**Status:** Not started
**Complexity:** Medium (2-3 hours)
**Value:** Useful for tracking divergence, but git segment already shows ahead/behind upstream

---

## 🎯 Current Status

### Production Ready
**Version:** v0.7.0 (StatusLine minimal redesign)
**Test Coverage:** 161 tests, all passing
**Bug Status:** All critical bugs fixed
**Documentation:** Complete ([docs/guides/statusline-minimal.md](docs/guides/statusline-minimal.md))

### Recommended Next Steps

**For Users:**
1. Update to latest version (all fixes included)
2. Try `ait statusline test` to see the new minimal layout
3. Configure if needed: `ait statusline config`

**For Development:**
The StatusLine is feature-complete for v0.7.0. Future enhancements listed above are **optional** and can be prioritized based on user feedback.

**Priority Order (if implementing):**
1. ~~NoneType error fix~~ ✅ **Done**
2. ~~Test suite fixes~~ ✅ **Done**
3. Vertical stacking (Medium value, 2-3 hours)
4. Config migration tool (Low value, already have preset command)
5. Worktree color coding (Low value, nice visual)
6. Worktree branch comparison (Low value, overlaps with git segment)

---

## 📊 Impact Summary

| Metric | Before | After | Change |
|--------|--------|-------|--------|
| Default metrics shown | 8 | 3 | -63% clutter |
| Character count (main) | ~80 | ~60 | -25% |
| Character count (worktree) | ~80 | ~80 | Same, but clearer |
| Tests | 156 | 161 | +5 tests |
| Test pass rate | 97% (5 failing) | 100% | All passing ✅ |
| Critical bugs | 1 (NoneType) | 0 | Fixed ✅ |

---

## 🔗 Related Files

- **Implementation:** `src/aiterm/statusline/renderer.py`, `src/aiterm/statusline/segments.py`
- **Config:** `src/aiterm/statusline/config.py`
- **Tests:** `tests/test_statusline*.py` (7 files, 161 tests)
- **Docs:** `docs/guides/statusline-minimal.md`
- **Spec:** `docs/specs/SPEC-statusline-redesign-2026-01-01.md` (Status: Done)
- **Brainstorm:** `BRAINSTORM-statusline-redesign-2026-01-01.md`

---

**✅ All critical issues resolved. StatusLine is production-ready for v0.7.0!**
