# Changelog - Label Management Feature

## [Unreleased] - 2025-10-29

### Added

#### Core Functionality
- **10 new label management methods** in `GogsClient` class (src/gogs-client.ts):
  - `listLabels(owner, repo)` - List all labels in a repository
  - `getLabel(owner, repo, labelId)` - Get a specific label by ID
  - `createLabel(owner, repo, data)` - Create a new label with name and color
  - `updateLabel(owner, repo, labelId, data)` - Update an existing label
  - `deleteLabel(owner, repo, labelId)` - Delete a label from a repository
  - `listIssueLabels(owner, repo, issueNumber)` - List labels on a specific issue
  - `addIssueLabels(owner, repo, issueNumber, labelIds)` - Add labels to an issue
  - `removeIssueLabel(owner, repo, issueNumber, labelId)` - Remove a label from an issue
  - `replaceIssueLabels(owner, repo, issueNumber, labelIds)` - Replace all labels on an issue
  - `removeAllIssueLabels(owner, repo, issueNumber)` - Remove all labels from an issue

#### MCP Server Integration
- **10 new Zod validation schemas** in server.ts:
  - `ListLabelsSchema` - Validates list labels request
  - `GetLabelSchema` - Validates get single label request
  - `CreateLabelSchema` - Validates create label request with required name and color
  - `UpdateLabelSchema` - Validates update label request with optional fields
  - `DeleteLabelSchema` - Validates delete label request
  - `ListIssueLabelsSchema` - Validates list issue labels request
  - `AddIssueLabelsSchema` - Validates add labels to issue request
  - `RemoveIssueLabelSchema` - Validates remove label from issue request
  - `ReplaceIssueLabelsSchema` - Validates replace issue labels request
  - `RemoveAllIssueLabelsSchema` - Validates remove all labels request

- **10 new MCP tools** registered in server.ts:
  - `list_labels` - MCP tool to list repository labels
  - `get_label` - MCP tool to get single label
  - `create_label` - MCP tool to create new label
  - `update_label` - MCP tool to update existing label
  - `delete_label` - MCP tool to delete label
  - `list_issue_labels` - MCP tool to list issue labels
  - `add_issue_labels` - MCP tool to add labels to issue
  - `remove_issue_label` - MCP tool to remove label from issue
  - `replace_issue_labels` - MCP tool to replace all issue labels
  - `remove_all_issue_labels` - MCP tool to remove all issue labels

- **10 new handler cases** in server.ts for processing label tool requests

#### Documentation
- **README.md**:
  - Added "Label Management" section to Features overview
  - Added "Label Management Tools" section with comprehensive documentation
  - Documented all 10 label management tools with parameters and descriptions
  - Added color format specification (#rrggbb hex codes)

- **USAGE_EXAMPLES.md**:
  - Added "Label Management" section with practical examples
  - Provided natural language usage examples for all 10 operations
  - Demonstrated repository-level label operations
  - Demonstrated issue-level label operations
  - Showed examples of CRUD operations on labels

#### Type System
- Imported `GogsLabel` type in gogs-client.ts for type safety
- All methods properly typed with TypeScript
- Return types specified for all label operations

### Changed
- Updated import statement in gogs-client.ts to include `GogsLabel` type
- Enhanced MCP server tool list with 10 new label management tools
- Extended switch statement in server.ts with 10 new case handlers

### Technical Details

#### API Endpoints Utilized
- `GET /repos/:owner/:repo/labels` - List repository labels
- `GET /repos/:owner/:repo/labels/:id` - Get single label
- `POST /repos/:owner/:repo/labels` - Create label
- `PATCH /repos/:owner/:repo/labels/:id` - Update label
- `DELETE /repos/:owner/:repo/labels/:id` - Delete label
- `GET /repos/:owner/:repo/issues/:index/labels` - List issue labels
- `POST /repos/:owner/:repo/issues/:index/labels` - Add labels to issue
- `DELETE /repos/:owner/:repo/issues/:index/labels/:id` - Remove label from issue
- `PUT /repos/:owner/:repo/issues/:index/labels` - Replace issue labels
- `DELETE /repos/:owner/:repo/issues/:index/labels` - Remove all issue labels

#### Code Statistics
- Total lines added: **706**
- Files modified: **4**
  - src/gogs-client.ts: +126 lines
  - src/server.ts: +441 lines
  - README.md: +79 lines
  - USAGE_EXAMPLES.md: +60 lines

#### Build Status
- ✅ TypeScript compilation successful
- ✅ No type errors
- ✅ All methods compiled to JavaScript
- ✅ Source maps generated
- ✅ Type definitions (.d.ts) generated

### Testing
- Verified successful TypeScript compilation
- Confirmed all methods present in compiled output
- Validated tool registration in MCP server
- Checked handler implementation for all tools

### Breaking Changes
None - This is a purely additive feature

### Deprecations
None

### Security
- All label operations require appropriate Gogs server permissions
- Access token permissions respected
- No additional security concerns introduced

### Performance
- Label operations use standard HTTP requests to Gogs API
- No impact on existing functionality
- Efficient implementation with no unnecessary API calls

## References
- Issue: #3 - feat: gogs labels
- Gogs API Documentation: docs-api/Issues/Labels.md
- Commit: 72483e2 - feat: implement Gogs label management