# CCS Project Roadmap

Last Updated: 2025-12-19

Development roadmap documenting completed modularization phases and future work.

---

## Completed Phases

### Phase 1: Type System Modularization

**Status**: COMPLETE

Extracted TypeScript types into dedicated `types/` directory with barrel exports.

**Changes**:
- Created `src/types/` directory structure
- Extracted types from inline definitions into dedicated files:
  - `config.ts` - Config, Settings, EnvVars
  - `cli.ts` - ParsedArgs, ExitCode, ClaudeCliInfo
  - `delegation.ts` - Session, execution types
  - `glmt.ts` - Message transformation types
  - `utils.ts` - ErrorCode, LogLevel, Result
- Created `index.ts` barrel export aggregating all types

**Impact**:
- Centralized type definitions
- Cleaner imports across codebase
- Easier type maintenance

---

### Phase 2: CLI Command Extraction

**Status**: COMPLETE

Extracted CLI command handlers from main `ccs.ts` into dedicated `commands/` directory.

**Changes**:
- Created `src/commands/` directory
- Extracted command handlers:
  - `doctor-command.ts` - Health diagnostics
  - `help-command.ts` - Help text generation
  - `install-command.ts` - Install/uninstall logic
  - `shell-completion-command.ts` - Shell completions
  - `sync-command.ts` - Symlink synchronization
  - `update-command.ts` - Self-update logic
  - `version-command.ts` - Version display
  - `cliproxy-command.ts` - CLIProxy subcommands (634 lines)

**Impact**:
- Reduced `ccs.ts` from ~1200 lines to 596 lines
- Isolated command logic for easier testing
- Clear separation of concerns

---

### Phase 3: CLIProxy Modularization

**Status**: COMPLETE

Heavily modularized the CLIProxy integration module with internal subdirectories.

**Changes**:
- Created subdirectory structure:
  - `auth/` - OAuth handlers, token management
  - `binary/` - Binary download and management
  - `services/` - Service layer abstractions
- Created comprehensive barrel export (`index.ts` - 137 lines)
- Maintained backward compatibility for all exports

**Key Files**:
| File | Lines | Purpose |
|------|-------|---------|
| cliproxy-executor.ts | 666 | Main execution logic |
| config-generator.ts | 531 | Config file generation |
| account-manager.ts | 509 | Account management |
| auth-handler.ts | - | Authentication handling |
| proxy-detector.ts | - | Running proxy detection |

---

### Phase 4: Utility and Error Modularization

**Status**: COMPLETE

Extracted utilities and error handling into focused modules.

**Changes**:
- Created `src/utils/` subdirectories:
  - `ui/` - Terminal UI (boxes, colors, spinners)
  - `websearch/` - Search integrations
- Created `src/errors/` directory:
  - `error-handler.ts` - Main error handling
  - `exit-codes.ts` - Exit code definitions
  - `cleanup.ts` - Cleanup logic
- Created `src/management/` directory:
  - `checks/` - Diagnostic checks
  - `repair/` - Auto-repair logic

---

### Phase 5: UI Components Modularization

**Status**: COMPLETE

Major UI refactoring splitting monster files into focused modules.

**Monster Files Split**:

| Original File | Lines | Split Into |
|---------------|-------|------------|
| account-flow-viz.tsx | 1,144 | 12 modules in `flow-viz/` |
| provider-editor.tsx | 921 | 13 modules in `provider-editor/` |
| copilot-config-form.tsx | 846 | 13 modules in `config-form/` |
| error-logs.tsx | 617 | 6 modules in `error-logs/` |
| profile-editor.tsx | 531 | 10 modules in `editor/` |

**Domain Directories Created**:
- `components/account/` - Account management (3 components + flow-viz)
- `components/analytics/` - Usage charts (3 components)
- `components/cliproxy/` - CLIProxy config (10 components + subdirs)
- `components/copilot/` - Copilot settings (2 components + config-form)
- `components/health/` - Health gauges (2 components)
- `components/layout/` - App structure (3 components)
- `components/monitoring/` - Error logs (3 components + error-logs)
- `components/profiles/` - Profile management (4 components + editor)
- `components/setup/` - Setup wizard (2 components + wizard)
- `components/shared/` - Reusable components (19 components)

**Barrel Exports Added**:
- Main barrel: `components/index.ts`
- Domain barrels: One `index.ts` per domain directory
- Subdirectory barrels: For split component directories

---

## Current Status

### Metrics

| Metric | Before | After | Change |
|--------|--------|-------|--------|
| Files > 500 lines | 12 | 7 | -42% |
| UI files > 200 lines | 28 | 14 | -50% |
| Barrel exports (CLI) | 5 | 24 | +380% |
| Barrel exports (UI) | 0 | 11 | New |
| Domain directories | 4 | 15 | +275% |

### Remaining Large Files

**CLI (Acceptable)**:
- `model-pricing.ts` (676 lines) - Data file
- `glmt-proxy.ts` (675 lines) - Complex proxy logic
- `cliproxy-executor.ts` (666 lines) - Core execution
- `ccs.ts` (596 lines) - Entry point

**UI (Need Attention)**:
- `pages/settings.tsx` (1,710 lines) - **HIGH PRIORITY SPLIT**
- `components/ui/sidebar.tsx` (674 lines) - shadcn component
- `monitoring/auth-monitor.tsx` (465 lines) - Could split
- `pages/analytics.tsx` (420 lines) - Could split

---

## Future Work

### Priority 1: Settings Page Split

**Target**: Split `pages/settings.tsx` (1,710 lines)

**Proposed Structure**:
```
pages/settings/
├── index.tsx                 # Main layout
├── general-section.tsx       # General settings
├── appearance-section.tsx    # Theme, colors
├── providers-section.tsx     # Provider config
├── websearch-section.tsx     # WebSearch config
├── advanced-section.tsx      # Advanced options
├── hooks.ts                  # Shared hooks
└── types.ts                  # Settings types
```

### Priority 2: Analytics Page Split

**Target**: Split `pages/analytics.tsx` (420 lines)

**Proposed Structure**:
```
pages/analytics/
├── index.tsx                 # Main layout
├── usage-overview.tsx        # Usage summary
├── model-breakdown.tsx       # Per-model stats
├── cost-analysis.tsx         # Cost tracking
└── hooks.ts                  # Data hooks
```

### Priority 3: Auth Monitor Split

**Target**: Split `monitoring/auth-monitor.tsx` (465 lines)

**Proposed Structure**:
```
monitoring/auth-monitor/
├── index.tsx                 # Main component
├── provider-status.tsx       # Provider cards
├── token-display.tsx         # Token info
├── refresh-controls.tsx      # Refresh actions
└── hooks.ts                  # Auth hooks
```

### Priority 4: Test Coverage

**Target**: Add tests for modularized components

- Unit tests for extracted utilities
- Component tests for split UI modules
- Integration tests for barrel exports
- Snapshot tests for UI components

### Priority 5: Documentation

**Target**: Keep documentation synchronized

- Update codebase-summary.md on structural changes
- Document new patterns in code-standards.md
- Keep architecture diagrams current
- Add inline JSDoc comments

---

## Development Milestones

| Milestone | Status | Target Date |
|-----------|--------|-------------|
| Phase 1: Types | COMPLETE | - |
| Phase 2: Commands | COMPLETE | - |
| Phase 3: CLIProxy | COMPLETE | - |
| Phase 4: Utils/Errors | COMPLETE | - |
| Phase 5: UI Components | COMPLETE | - |
| Phase 6: Settings Split | PENDING | Q1 2026 |
| Phase 7: Remaining Splits | PENDING | Q1 2026 |
| Phase 8: Test Coverage | PENDING | Q2 2026 |

---

## Success Criteria

### Code Quality

- [ ] All files under 200 lines (except documented exceptions)
- [ ] Every directory has barrel export
- [ ] No circular dependencies
- [ ] TypeScript strict mode passing

### Maintainability

- [ ] Clear domain boundaries
- [ ] Consistent naming conventions
- [ ] Comprehensive documentation
- [ ] Easy navigation for new developers

### Developer Experience

- [ ] Fast build times
- [ ] Efficient tree-shaking
- [ ] Clear import paths
- [ ] Minimal cognitive load

---

## Related Documentation

- [Codebase Summary](./codebase-summary.md) - Current structure
- [Code Standards](./code-standards.md) - Patterns and conventions
- [System Architecture](./system-architecture.md) - Architecture diagrams
- [CLAUDE.md](../CLAUDE.md) - AI development guidance