# Hostkeeper Project State & Handoff Guide

> **Purpose**: Enable seamless continuation of development by any agent/LLM across sessions
> 
> **Last Updated**: 2024-06-23 (Session 8)
> **Current Status**: Implementation In Progress - Tasks 1-8 Complete
> **Phase**: MVP Development (Phase 1)

---

## 🚀 Quick Start for New Agents

### Immediate Context (Read This First)

**Project**: Hostkeeper - Cross-platform SSH/SFTP management tool
**Tech Stack**: Go 1.21+, Cobra, Bubble Tea, golang.org/x/crypto/ssh
**Architecture**: Monolithic CLI with embedded TUI
**Current Phase**: MVP Implementation (estimated 3-4 weeks)

### What's Already Done
✅ Complete design documentation (`docs/plans/2024-06-22-hostkeeper-design.md`)
✅ Detailed implementation plan (`docs/plans/2024-06-22-hostkeeper-implementation.md`)
✅ Git repository initialized
✅ Project structure defined
✅ **Task 1**: Project setup (go.mod, Makefile, .gitignore, main.go)
✅ **Task 2**: Core data models (`internal/models/models.go`) + JSON storage (`pkg/storage/`)
✅ **Task 3**: Configuration management (`pkg/config/config.go`)
✅ **Task 4**: Error handling framework (`internal/errors/`) + tests passing
✅ **Task 5**: SSH client (`pkg/ssh/`) + tests passing
✅ **Task 6**: CLI Framework Setup - Cobra root, version, completion (`cmd/hostkeeper/`)
✅ **Task 7**: Add command (`cmd/hostkeeper/add.go`) - add hosts with flags/interactive + tests
✅ **Task 8**: List command (`cmd/hostkeeper/list.go`) - list/filter/sort hosts + tests
✅ **Bug Fix**: Fixed deadlock in JSON storage (RLock within Lock)

### What Needs to Happen Next
🔄 **Task 12**: Build and Testing (Makefile, integration tests)
🔄 **Task 13**: Documentation (README, usage docs)
🔄 **Task 14**: Final testing and release prep

---

## 📊 Current Project Status

### Completion Matrix

| Component | Status | Notes |
|-----------|--------|-------|
| **Planning** | ✅ 100% | Design and implementation plans complete |
| **Setup** | ✅ 100% | go.mod, Makefile, .gitignore, main.go |
| **Core Models** | ✅ 100% | Host, KeyPair, Snippet, AppConfig models + JSON storage |
| **Config** | ✅ 100% | Cross-platform config management |
| **Errors** | ✅ 100% | AppError + ConnectionError + SSH error handler |
| **SSH Client** | ✅ 100% | Password + key auth, Execute, Connect/Close |
| **CLI Framework** | ✅ 100% | Cobra root, version, completion commands |
| **CLI Commands** | 🟡 70% | add + list + connect + edit + delete + export + import done |
| **TUI** | 🟡 40% | Basic TUI with host list navigation |
| **Testing** | 🟡 55% | Error + SSH + add + list + connect + edit + delete + TUI + export/import tests passing |
| **Documentation** | 🔲 0% | Usage guides and API docs |

### Overall Progress: **~75% Complete** (Tasks 1-11 done)

---

## 🎯 Implementation Task Status

### Task Breakdown (from implementation plan)

#### ✅ Task 1: Project Setup and Dependencies
- **Status**: ✅ Completed
- **Priority**: CRITICAL (must be first)
- **Deliverables**: go.mod, project structure, Makefile
- **Files Created**: 
  - `go.mod`, `go.sum` (module: `git.tukangketik.id/swanadiva/hostkeeper`)
  - `Makefile`, `.gitignore`
  - `cmd/hostkeeper/main.go`

#### ✅ Task 2: Core Data Models and Storage Layer
- **Status**: ✅ Completed
- **Priority**: CRITICAL
- **Deliverables**: Host, KeyPair, Snippet, AppConfig models + JSON storage
- **Files Created**:
  - `internal/models/models.go` — all data models + `DefaultConfig()`
  - `pkg/storage/storage.go` — Storage interface, ExportData, MergeStrategy
  - `pkg/storage/json_storage.go` — JSONStorage implementation with file locking

#### ✅ Task 3: Configuration Management
- **Status**: ✅ Completed
- **Priority**: HIGH
- **Deliverables**: Cross-platform config load/save functionality
- **Files Created**:
  - `pkg/config/config.go` — Config struct, OS-aware paths (macOS/Linux/Windows), auto-create defaults

#### ✅ Task 4: Error Handling Framework
- **Status**: ✅ Completed (all tests passing)
- **Priority**: HIGH
- **Deliverables**: Error types, SSH error handler
- **Files Created**:
  - `internal/errors/errors.go` — AppError type with codes, Unwrap support
  - `internal/errors/connection_errors.go` — ConnectionError, HandleSSHError, FormatConnectionError
  - `test/errors_test.go` — 5 test functions, all passing

#### ✅ Task 5: SSH Client Implementation
- **Status**: ✅ Completed (all tests passing)
- **Priority**: CRITICAL
- **Deliverables**: SSH connection client with auth
- **Files Created**:
  - `pkg/ssh/client.go` — Client struct, Connect, Execute, Close, IsConnected
  - `pkg/ssh/auth.go` — Password/key/both auth, default key discovery
  - `test/ssh/ssh_test.go` — 4 test functions, all passing

#### ✅ Task 6: CLI Framework Setup
- **Status**: ✅ Completed
- **Priority**: CRITICAL
- **Deliverables**: Cobra framework, basic commands
- **Files Created**:
  - `cmd/hostkeeper/main.go` — Entry point with Execute() function
  - `cmd/hostkeeper/root.go` — Root command with PersistentPreRunE config init
  - `cmd/hostkeeper/completion.go` — Shell completion (bash/zsh/fish/powershell)
  - Includes `version` subcommand and `-v/--verbose`, `--debug` flags

#### ✅ Task 7: Add Command
- **Status**: ✅ Completed (all tests passing)
- **Priority**: CRITICAL
- **Deliverables**: `add` command for registering hosts
- **Files Created**:
  - `cmd/hostkeeper/add.go` — add host with flags/interactive, password/key auth, groups, tags, notes
  - `cmd/hostkeeper/add_test.go` — tests for add command (flag parsing, storage integration)

#### ✅ Task 8: List Command
- **Status**: ✅ Completed (all tests passing)
- **Priority**: CRITICAL
- **Deliverables**: `list` command for displaying hosts
- **Files Created**:
  - `cmd/hostkeeper/list.go` — list hosts with filter (group/tag), sort, table/JSON/wide output formats
  - `cmd/hostkeeper/list_test.go` — tests for list command (filtering, formatting)

#### ✅ Task 9: Connect Host Command
- **Status**: ✅ Completed
- **Priority**: CRITICAL
- **Deliverables**: Connect to saved SSH hosts via native SSH or Go SSH client
- **Files Created**:
  - `cmd/hostkeeper/connect.go` — Connect command with native SSH (default) and direct Go SSH (--direct) modes
  - `cmd/hostkeeper/connect_test.go` — Tests for command existence, flags, and SSH arg building

#### ✅ Edit Host Command
- **Status**: ✅ Completed
- **Priority**: HIGH
- **Deliverables**: Edit existing SSH host configurations
- **Files Created**:
  - `cmd/hostkeeper/edit.go` — Edit command with flag-based and interactive modes
  - `cmd/hostkeeper/edit_test.go` — Tests for command existence and flags

#### ✅ Delete Host Command
- **Status**: ✅ Completed
- **Priority**: HIGH
- **Deliverables**: Delete SSH hosts with confirmation prompt
- **Files Created**:
  - `cmd/hostkeeper/delete.go` — Delete command with --force flag to skip confirmation
  - `cmd/hostkeeper/delete_test.go` — Tests for command existence, alias, and flags

#### ✅ Task 10: Basic TUI Implementation
- **Status**: ✅ Completed
- **Priority**: HIGH
- **Deliverables**: Bubble Tea TUI with host list screen
- **Files Created**:
  - `pkg/tui/tui.go` — TUI model with Init/Update/View (Bubble Tea)
  - `pkg/tui/host_list.go` — Host list renderer with keyboard navigation
  - `pkg/tui/tui_test.go` — Tests for TUI initialization and host loading
  - `cmd/hostkeeper/tui.go` — CLI `tui` command

#### ✅ Task 11: Export/Import Commands
- **Status**: ✅ Completed
- **Priority**: HIGH
- **Deliverables**: Export/import hosts, keys, snippets for backup/transfer
- **Files Created**:
  - `cmd/hostkeeper/export.go` — Export command with JSON format (default) and include-keys flag
  - `cmd/hostkeeper/import.go` — Import command with replace/merge strategies and dry-run preview
  - `test/storage/export_import_test.go` — Integration test for export/import round-trip

#### 🔲 Task 12-14: Remaining Tasks
- **Status**: Not Started
- **Details**: See `docs/plans/2024-06-22-hostkeeper-implementation.md`

---

## 🗺️ Development Roadmap

### Current Week Focus
**Target**: Complete Tasks 10+ (TUI, Export/Import)

### This Sprint
- [x] Project setup and dependencies
- [x] Core data models and storage
- [x] Configuration management
- [x] Error handling framework
- [x] SSH client implementation
- [x] CLI framework setup
- [x] Add host command
- [x] List hosts command
- [x] Connect host command
- [x] Edit host command
- [x] Delete host command
- [x] TUI implementation

### Next Sprint
- [ ] TUI implementation (Bubble Tea)
- [ ] Export/import functionality
- [ ] Key management commands

### Final Sprint
- [ ] Testing and integration
- [ ] Documentation completion
- [ ] Build system and release preparation

---

## 🛠️ Technical Stack & Dependencies

### Go Dependencies
```go
// Required packages (to be installed in Task 1)
github.com/spf13/cobra@latest        // CLI framework
github.com/spf13/viper@latest      // Configuration
github.com/charmbracelet/bubbletea // TUI framework
github.com/charmbracelet/lipgloss  // TUI styling
golang.org/x/crypto@latest         // SSH/SFTP
github.com/google/uuid@latest      // UUID generation
github.com/joho/godotenv@latest    // Environment variables
```

### Build Tools
- `make` - Build automation
- `go test` - Testing framework
- `go fmt` - Code formatting

### Platform Support
- Linux (x86_64, ARM64, ARM)
- macOS (x86_64, ARM64)  
- Windows (x86_64)
- Termux/Android (ARM)

---

## 📁 Project Structure

```
hostkeeper/
├── cmd/
│   └── hostkeeper/          # Main application
│       ├── main.go          # Entry point
│       ├── root.go          # Root command
│       └── *.go             # Subcommands
├── pkg/
│   ├── ssh/                 # SSH client
│   ├── sftp/                # SFTP client (Phase 2)
│   ├── storage/             # Data persistence
│   ├── config/              # Configuration
│   └── tui/                 # Terminal UI
├── internal/
│   ├── models/              # Data models
│   └── errors/              # Error handling
├── test/                    # Tests
├── docs/
│   └── plans/               # Design docs
├── utils/                   # Utilities
├── build/                   # Build output
├── go.mod
├── go.sum
├── Makefile
├── README.md
└── PROJECT_STATE.md         # THIS FILE
```

---

## 🔄 Handoff Procedures

### For New Agents/LLMs

#### Step 1: Read This File
- **Start here**: This `PROJECT_STATE.md` file
- **Then read**: `docs/plans/2024-06-22-hostkeeper-design.md` (architecture)
- **Then read**: `docs/plans/2024-06-22-hostkeeper-implementation.md` (tasks)

#### Step 2: Check Current Status
```bash
# Check git status
git status

# Check recent commits
git log --oneline -5

# Check what files exist
find . -name "*.go" -type f
```

#### Step 3: Determine Next Action
1. Look at "Implementation Task Status" above
2. Find first incomplete task
3. Refer to implementation plan for detailed instructions
4. Execute following TDD approach

#### Step 4: Update This File
After completing any task, update the corresponding status section:
```markdown
#### ✅ Task X: [Task Name]
- **Status**: Completed
- **Completion Date**: [Date]
- **Notes**: [Any important notes]
- **Commits**: [Relevant commit hashes]
```

### For Returning Agents

#### Quick Status Check
```bash
# What's been done recently?
git log --oneline --since="2 weeks ago" | head -10

# What tests are passing?
make test 2>&1 | tail -20

# What's the current state?
go run cmd/hostkeeper/main.go --version
```

#### Resume Work
1. Check "Implementation Task Status" in this file
2. Find last completed task
3. Continue with next incomplete task
4. Update status as you progress

---

## 🧪 Testing Strategy

### Test Categories
1. **Unit Tests** - Individual component testing
2. **Integration Tests** - Cross-component testing  
3. **E2E Tests** - Full workflow testing

### Running Tests
```bash
# All tests
make test

# With coverage
make test-coverage

# Specific package
go test ./pkg/storage -v

# Watch mode (if installed)
go test ./... -watch
```

### Current Test Coverage
- **Target**: 80%+ coverage
- **Current**: ~30% (error handling + SSH client tests passing)
- **Priority**: Write tests first (TDD approach)

---

## 🚨 Known Issues & Limitations

### Current Limitations (MVP Scope)
- No encryption (Phase 2)
- No cloud sync (Phase 3)
- No custom terminal emulator (Phase 2)
- Basic SFTP only (native client, no TUI)

### Technical Debt
- None yet (project just started)

### Security Considerations
- File permissions must be 0600 for sensitive files
- No password/key logging in errors
- Memory clearing for sensitive data (Phase 2)

---

## 📚 Documentation Index

### Essential Reading (Priority Order)
1. **`PROJECT_STATE.md`** (this file) - Current status and handoff
2. **`docs/plans/2024-06-22-hostkeeper-design.md`** - Architecture and design
3. **`docs/plans/2024-06-22-hostkeeper-implementation.md`** - Implementation tasks

### Additional Documentation
- `README.md` - Project overview and quick start
- `docs/INSTALLATION.md` - Installation guide
- `docs/USAGE.md` - Usage documentation (to be created)
- `docs/ARCHITECTURE.md` - Detailed architecture (to be created)

---

## 🎯 Success Criteria

### MVP Success Metrics
- ✅ Can establish SSH connections (via native SSH)
- ✅ Can manage multiple hosts
- ✅ Can perform SFTP operations
- ✅ Can export/import credentials
- ✅ Works on all target platforms
- ✅ Secure credential storage
- ✅ User-friendly error messages

### Current Progress: 0/7 criteria met

---

## 🔄 Version Control Strategy

### Branch Strategy
- `main` - Production code
- `feature/*` - Feature branches
- `bugfix/*` - Bug fixes

### Commit Conventions
```bash
# Feature commits
git commit -m "feat: add SSH client implementation"

# Bug fixes
git commit -m "fix: handle connection timeout properly"

# Documentation
git commit -m "docs: update installation guide"

# Tests
git commit -m "test: add SSH client integration tests"
```

### Release Tagging
```bash
# Format: v[MAJOR].[MINOR].[PATCH]
git tag -a v1.0.0 -m "Initial MVP release"
```

---

## 💻 Development Workflow

### Getting Started (Fresh Clone)
```bash
# Clone repository
git clone <repo-url>
cd hostkeeper

# Install dependencies
go mod download

# Run tests
make test

# Build project
make build

# Run application
./build/hostkeeper --help
```

### Daily Workflow
```bash
# Pull latest changes
git pull origin main

# Check status (THIS FILE)
# Look at "Current Project Status" section

# Find next task
# Look at "Implementation Task Status" section

# Work on task
# Follow implementation plan

# Test changes
make test

# Commit changes
git add .
git commit -m "feat: descriptive message"

# Push changes
git push origin main
```

---

## 🔧 Debugging & Troubleshooting

### Common Issues

#### Build Failures
```bash
# Clean and retry
make clean
make build

# Check dependencies
go mod verify
go mod tidy
```

#### Test Failures
```bash
# Run with verbose output
go test -v ./...

# Run specific test
go test ./test -run TestSpecificFunction
```

#### Import Errors
```bash
# Verify module structure
go mod tidy

# Check go.mod
cat go.mod
```

---

## 📞 Contact & Support

### Project Links
- Repository: [GitHub URL]
- Issues: [GitHub Issues URL]
- Discussions: [GitHub Discussions URL]

### Getting Help
1. Check documentation in `docs/`
2. Search existing issues
3. Create new issue with:
   - Clear description
   - Steps to reproduce
   - Expected vs actual behavior
   - Environment details

---

## 🎓 Learning Resources

### For New Contributors
- Go Documentation: https://golang.org/doc/
- Cobra Framework: https://github.com/spf13/cobra
- Bubble Tea: https://github.com/charmbracelet/bubbletea
- SSH in Go: https://pkg.go.dev/golang.org/x/crypto/ssh

### Project-Specific
- Design decisions: `docs/plans/2024-06-22-hostkeeper-design.md`
- Implementation guide: `docs/plans/2024-06-22-hostkeeper-implementation.md`
- Code examples: `test/` directory

---

## 📊 Progress Tracking

### Completion Timeline
- **Start Date**: 2024-06-22
- **Planning Complete**: 2024-06-22 ✅
- **Target MVP**: 2024-07-20 (3-4 weeks)
- **Current Phase**: Implementation

### Milestone Tracking
- [x] Milestone 1: Foundation (Tasks 1-6) - Week 1 ✅ COMPLETE
- [x] Task 7-9: Add, List, Connect commands ✅ COMPLETE
- [x] Edit & Delete commands ✅ COMPLETE
- [x] Milestone 2: Core Features (Tasks 7-10) - Week 2-3 ✅ COMPLETE
- [ ] Milestone 3: Polish & Release (Tasks 11-14) - Week 4

---

**🔄 Remember**: After completing any task, update the "Implementation Task Status" section above to maintain accurate project state for future agents/sessions.

**📝 Note**: This file should be updated after every significant development session to ensure continuity across agents and time.