---
phase: 01-setup-foundation
plan: 02
type: execute
wave: 1
depends_on: []
files_modified: [src/components/, src/lib/, src/types/, src/hooks/, src/utils/]
autonomous: true
must_haves:
  truths:
    - "Core components are created for weekly calendar view"
    - "Task card component is implemented with proper styling"
    - "Navigation controls allow week switching"
    - "Drag-and-drop functionality is functional"
    - "Data persistence works using localStorage"
  artifacts:
    - path: "src/components/CalendarGrid.tsx"
      provides: "Weekly calendar grid component"
      exports: "CalendarGrid component"
    - path: "src/components/TaskCard.tsx"
      provides: "Task display and editing component"
      exports: "TaskCard component"
    - path: "src/components/NavigationControls.tsx"
      provides: "Previous/Next week navigation"
      exports: "NavigationControls component"
    - path: "src/lib/taskPersistence.ts"
      provides: "Local storage data management"
      exports: ["saveTasks", "loadTasks"]
    - path: "src/types/task.ts"
      provides: "Task data structure definition"
      contains: "interface Task"
  key_links:
    - from: "src/components/CalendarGrid.tsx"
      to: "src/components/TaskCard.tsx"
      via: "component composition"
      pattern: "TaskCard.*props"
    - from: "src/components/CalendarGrid.tsx"
      to: "src/lib/taskPersistence.ts"
      via: "data persistence"
      pattern: "taskPersistence.*save"
    - from: "src/components/CalendarGrid.tsx"
      to: "src/components/NavigationControls.tsx"
      via: "navigation"
      pattern: "NavigationControls.*props"
---

# Create foundational components and data persistence

## Objective
Implement core components for the weekly calendar view and establish data persistence with localStorage.

## Purpose
Build the essential UI components and data layer needed for the weekly todo list application, including the calendar grid, task cards, navigation, and local storage integration.

## Output
Functional core components for displaying and managing tasks in a weekly calendar view, with data persistence capability.

## Context
This plan builds upon the project setup from plan 01-01, focusing on implementing the actual functionality needed to display and manage tasks in a weekly calendar view.

## Tasks

<task type="auto">
  <name>Create core component structure and task type definitions</name>
  <files>src/types/task.ts, src/components/, src/hooks/</files>
  <action>
    1. Define Task type with properties: id, title, date, description, completed, category
    2. Create directory structure for components, hooks, and utilities
    3. Create basic component templates for CalendarGrid, TaskCard, and NavigationControls
    4. Implement basic hooks for managing component state
  </action>
  <verify>Typescript compiles without errors and Task type is properly defined</verify>
  <done>Task type is defined with required properties and basic component structure exists</done>
</task>

<task type="auto">
  <name>Implement weekly calendar grid component</name>
  <files>src/components/CalendarGrid.tsx</files>
  <action>
    1. Create a grid-based calendar view showing 7 days (Monday to Sunday)
    2. Display tasks organized by day
    3. Implement proper date handling using date-fns
    4. Create a way to add new tasks to specific days
    5. Make days clickable for adding new tasks
  </action>
  <verify>CalendarGrid component renders 7 columns representing days and displays sample tasks</verify>
  <done>CalendarGrid component renders properly with days of week and basic task display</done>
</task>

<task type="auto">
  <name>Implement task card component with drag-and-drop</name>
  <files>src/components/TaskCard.tsx, src/lib/taskPersistence.ts</files>
  <action>
    1. Create TaskCard component with title, date, and description
    2. Implement drag-and-drop functionality using react-dnd
    3. Add ability to edit task details
    4. Add complete/incomplete toggle
    5. Implement data persistence with localStorage
  </action>
  <verify>TaskCard component renders correctly and supports drag-and-drop interactions</verify>
  <done>TaskCard component allows editing and dragging between days</done>
</task>

<task type="auto">
  <name>Implement navigation controls and data persistence</name>
  <files>src/components/NavigationControls.tsx, src/lib/taskPersistence.ts</files>
  <action>
    1. Create navigation controls for previous/next week buttons
    2. Implement week navigation logic
    3. Create localStorage persistence functions for saving and loading tasks
    4. Connect data persistence to the calendar grid component
  </action>
  <verify>Navigation controls allow switching between weeks and tasks persist between page reloads</verify>
  <done>Navigation works correctly and tasks persist in localStorage</done>
</task>
</tasks>

<verification>
- Calendar grid displays properly with tasks organized by day
- Task cards render with all required information
- Drag-and-drop functionality works between days
- Navigation controls allow switching weeks
- Tasks persist in localStorage between browser sessions
</verification>

<success_criteria>
- Calendar grid component shows 7-day weekly view with tasks organized by day
- Task cards display task information and support editing
- Users can move tasks between days using drag-and-drop
- Navigation controls allow switching between weeks
- Tasks are saved to and loaded from localStorage
- All components integrate properly with each other
</success_criteria>

<output>
After completion, create `.planning/phases/01-setup-foundation/01-02-SUMMARY.md`
</output>