Kanban App Plan

A flexible kanban board application with multiple boards support, drag-and-drop functionality, and arbitrary column configuration, built for Val Town using React frontend and SQLite backend.

• Core Kanban Features:

  • Multiple kanban boards with custom names
  • Arbitrary number of columns per board with custom names
  • Create, edit, delete boards and columns
  • Create, edit, delete tasks
  • Drag and drop tasks between columns
  • Task priorities (Low, Medium, High)
  • Task descriptions and due dates

• UI/UX:

  • Clean, responsive design using DaisyUI components
  • Theme switching with DaisyUI themes
  • Real-time updates when tasks are moved
  • Simple, intuitive interface following KISS principles [[memory:4516396]]

├── kanban-backend/
│   ├── database/
│   │   ├── migrations.ts    # SQLite schema setup
│   │   └── queries.ts       # Database query functions
│   ├── routes/
│   │   ├── boards.ts        # Board CRUD operations
│   │   ├── columns.ts       # Column CRUD operations
│   │   ├── tasks.ts         # Task CRUD operations
│   │   └── static.ts        # Static file serving
│   └── index.ts             # Main Hono app entry point
├── kanban-frontend/
│   ├── components/
│   │   ├── App.tsx          # Main app component
│   │   ├── BoardList.tsx    # List of all boards
│   │   ├── BoardView.tsx    # Single board view
│   │   ├── KanbanBoard.tsx  # Board container with columns
│   │   ├── KanbanColumn.tsx # Individual columns
│   │   ├── TaskCard.tsx     # Task card component
│   │   ├── TaskForm.tsx     # Create/edit task form
│   │   ├── BoardForm.tsx    # Create/edit board form
│   │   └── ColumnForm.tsx   # Create/edit column form
│   ├── index.html           # Main HTML template
│   ├── index.tsx            # React entry point
│   └── style.css            # Custom styles (if needed)
├── shared/
│   └── types.ts             # Shared TypeScript interfaces
└── README.md

Table Name Constants:

Create val
// In migrations.ts - configurable table names
const BOARDS_TABLE = 'kanban_boards_v1';
const COLUMNS_TABLE = 'kanban_columns_v1';
const TASKS_TABLE = 'kanban_tasks_v1';

Boards Table:

CREATE TABLE IF NOT EXISTS ${BOARDS_TABLE} (
  id INTEGER PRIMARY KEY AUTOINCREMENT,
  name TEXT NOT NULL,
  description TEXT,
  created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
  updated_at DATETIME DEFAULT CURRENT_TIMESTAMP
);

Columns Table:

CREATE TABLE IF NOT EXISTS ${COLUMNS_TABLE} (
  id INTEGER PRIMARY KEY AUTOINCREMENT,
  board_id INTEGER NOT NULL,
  name TEXT NOT NULL,
  position INTEGER NOT NULL DEFAULT 0,
  color TEXT DEFAULT '#6b7280',
  created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
  updated_at DATETIME DEFAULT CURRENT_TIMESTAMP,
  FOREIGN KEY (board_id) REFERENCES ${BOARDS_TABLE}(id) ON DELETE CASCADE
);

Tasks Table:

CREATE TABLE IF NOT EXISTS ${TASKS_TABLE} (
  id INTEGER PRIMARY KEY AUTOINCREMENT,
  column_id INTEGER NOT NULL,
  title TEXT NOT NULL,
  description TEXT,
  priority TEXT NOT NULL DEFAULT 'medium',
  due_date TEXT,
  position INTEGER NOT NULL DEFAULT 0,
  created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
  updated_at DATETIME DEFAULT CURRENT_TIMESTAMP,
  FOREIGN KEY (column_id) REFERENCES ${COLUMNS_TABLE}(id) ON DELETE CASCADE
);

Schema Details:

Boards:

• id: Unique board identifier
• name: Board name (required)
• description: Optional board description
• created_at, updated_at: Timestamps

Columns:

• id: Unique column identifier
• board_id: Reference to parent board
• name: Column name (required)
• position: For ordering columns within board
• color: Optional column color for theming
• created_at, updated_at: Timestamps

Tasks:

• id: Unique task identifier
• column_id: Reference to parent column
• title: Task title (required)
• description: Optional task description
• priority: 'low', 'medium', 'high'
• due_date: ISO date string (optional)
• position: For ordering within columns
• created_at, updated_at: Timestamps

Boards API:

• GET /api/boards - Get all boards
• GET /api/boards/:id - Get single board with columns and tasks
• POST /api/boards - Create new board
• PUT /api/boards/:id - Update board
• DELETE /api/boards/:id - Delete board (cascades to columns and tasks)

Columns API:

• GET /api/boards/:boardId/columns - Get columns for a board
• POST /api/boards/:boardId/columns - Create new column
• PUT /api/columns/:id - Update column
• DELETE /api/columns/:id - Delete column (cascades to tasks)
• PATCH /api/columns/:id/move - Reorder column position

Tasks API:

• GET /api/columns/:columnId/tasks - Get tasks for a column
• POST /api/columns/:columnId/tasks - Create new task
• PUT /api/tasks/:id - Update task
• DELETE /api/tasks/:id - Delete task
• PATCH /api/tasks/:id/move - Move task (update column/position)

Static Files:

• GET / - Serve main HTML with initial data injection
• GET /kanban-frontend/* - Serve frontend assets
• GET /shared/* - Serve shared utilities

App.tsx - Main application container

• DaisyUI theme management
• Global state management
• Error boundaries
• Routing between board list and board view

BoardList.tsx - List of all boards

• Grid/list view of boards
• Create new board button
• Board search/filtering
• Quick board actions

BoardView.tsx - Single board view

• Board header with name and actions
• Navigation back to board list
• Board settings and column management

KanbanBoard.tsx - Board layout with columns

• Dynamic column rendering based on board configuration
• Drag and drop context
• Add new column functionality
• Column reordering

KanbanColumn.tsx - Individual columns

• Column header with task count and actions
• Drop zone for tasks
• Add task button
• Column editing (name, color)
• Column deletion

TaskCard.tsx - Individual task representation

• Draggable task card with DaisyUI styling
• Priority indicators with badges
• Due date display
• Quick actions (edit, delete)

TaskForm.tsx - Task creation/editing

• DaisyUI modal or drawer
• Form validation
• Priority selection
• Date picker for due dates

BoardForm.tsx - Board creation/editing

• DaisyUI modal for board details
• Board name and description
• Default columns setup

ColumnForm.tsx - Column creation/editing

• DaisyUI modal for column details
• Column name and color picker
• Position management

Frontend:

• React 18.2.0 (pinned version)
• DaisyUI for component styling and themes
• TailwindCSS (included with DaisyUI)
• React DnD or HTML5 drag/drop for task and column movement
• Date-fns for date handling

Backend:

• Hono framework for API routes
• SQLite for data persistence with configurable table names
• Val Town standard utilities

Shared:

• TypeScript interfaces for type safety
• Utility functions for data validation

1. Set up Hono app with error handling
2. Create SQLite schema with configurable table names
3. Implement boards, columns, and tasks CRUD API endpoints
4. Add static file serving for kanban-frontend

1. Set up React app with DaisyUI and proper imports
2. Create board list and basic navigation
3. Implement board view with dynamic columns
4. Add basic task display and interactions

1. Implement board creation and editing
2. Add dynamic column creation and management
3. Column reordering and customization
4. Board navigation and routing

1. Implement task drag and drop between columns
2. Add column reordering functionality
3. Position management for tasks and columns
4. Smooth animations with DaisyUI transitions

1. Add DaisyUI theme switching
2. Implement task priorities and due dates
3. Add form validation and error handling
4. Responsive design with DaisyUI utilities

Val Town Specific:

• Use https://esm.sh for all imports
• Pin React version to 18.2.0
• Use proper JSX import source
• Implement proper error boundaries
• Use Val Town utilities for file serving
• Prefix folders with kanban- for multi-app project structure

Performance:

• Minimize API calls with efficient state management
• Use optimistic updates for better UX
• Implement proper loading states
• Efficient querying with proper foreign key relationships

User Experience:

• Follow DRY, KISS, YANGI principles [[memory:4516396]]
• Intuitive drag and drop interactions for tasks and columns
• Clear visual feedback for all actions
• DaisyUI components for consistent, accessible design
• Multiple theme support with DaisyUI

Data Integrity:

• Configurable table names for schema flexibility
• Proper task and column positioning logic
• Atomic operations for moves and reordering
• Cascade deletes for data consistency
• Input validation on both frontend and backend

Multi-Board Architecture:

• Flexible board creation with custom column configurations
• Efficient data structure for arbitrary column counts
• Board-specific settings and customizations
• Scalable design for multiple board types

• Board templates for quick setup
• Task assignments and collaboration
• Task comments and history
• Advanced search and filtering across boards
• Export/import functionality
• Real-time collaboration with WebSockets
• Board sharing and permissions
• Custom task fields and metadata

This plan provides a flexible, scalable foundation for a multi-board kanban app while maintaining simplicity and following Val Town best practices. The architecture supports arbitrary board and column configurations while keeping the codebase organized for future multi-app development.