# Household & Store Management - Implementation Summary

## Overview
Built comprehensive household and store management UI for the multi-household grocery list application. Users can now fully manage their households, members, and stores through a polished interface.

## Features Implemented

### 1. Manage Page (`/manage`)
**Location**: [frontend/src/pages/Manage.jsx](frontend/src/pages/Manage.jsx)

- Tab-based interface for Household and Store management
- Context-aware - always operates on the active household
- Accessible via "Manage" link in the navbar

### 2. Household Management
**Component**: [frontend/src/components/manage/ManageHousehold.jsx](frontend/src/components/manage/ManageHousehold.jsx)

**Features**:
- **Edit Household Name**: Admin-only, inline editing
- **Invite Code Management**:
  - Show/hide invite code with copy-to-clipboard
  - Generate new invite code (invalidates old one)
  - Admin-only access
- **Member Management**:
  - View all household members with roles
  - Promote/demote members between admin and member roles
  - Remove members from household
  - Cannot remove yourself
  - Admin-only actions
- **Delete Household**: 
  - Admin-only
  - Double confirmation required
  - Permanently deletes all data

**Permissions**:
- Viewers: Can only see household name and members
- Members: Same as viewers
- Admins: Full access to all features

### 3. Store Management
**Component**: [frontend/src/components/manage/ManageStores.jsx](frontend/src/components/manage/ManageStores.jsx)

**Features**:
- **View Household Stores**: 
  - Grid layout showing all stores
  - Shows store name, location, and default status
- **Add Stores**:
  - Select from system-wide store catalog
  - Admin-only
  - Cannot add already-linked stores
- **Remove Stores**:
  - Admin-only
  - Cannot remove last store (validation)
- **Set Default Store**:
  - Admin-only
  - Default store loads automatically

**Permissions**:
- Viewers & Members: Read-only view of stores
- Admins: Full CRUD operations

### 4. Create/Join Household Modal
**Component**: [frontend/src/components/manage/CreateJoinHousehold.jsx](frontend/src/components/manage/CreateJoinHousehold.jsx)

**Features**:
- Tabbed interface: "Create New" or "Join Existing"
- **Create Mode**:
  - Enter household name
  - Auto-generates invite code
  - Creates household with user as admin
- **Join Mode**:
  - Enter invite code
  - Validates code and adds user as member
  - Error handling for invalid codes

**Access**:
- Available from household switcher dropdown
- "+ Create or Join Household" button at bottom
- All authenticated users can access

### 5. Updated Household Switcher
**Component**: [frontend/src/components/household/HouseholdSwitcher.jsx](frontend/src/components/household/HouseholdSwitcher.jsx)

**Enhancements**:
- Added divider between household list and actions
- "+ Create or Join Household" button
- Opens CreateJoinHousehold modal

## Styling

### CSS Files Created
1. **[frontend/src/styles/pages/Manage.css](frontend/src/styles/pages/Manage.css)**
   - Page layout and tab navigation
   - Responsive design

2. **[frontend/src/styles/components/manage/ManageHousehold.css](frontend/src/styles/components/manage/ManageHousehold.css)**
   - Section cards with proper spacing
   - Member cards with role badges
   - Invite code display
   - Danger zone styling
   - Button styles (primary, secondary, danger)

3. **[frontend/src/styles/components/manage/ManageStores.css](frontend/src/styles/components/manage/ManageStores.css)**
   - Grid layout for store cards
   - Default badge styling
   - Add store panel
   - Available stores grid

4. **[frontend/src/styles/components/manage/CreateJoinHousehold.css](frontend/src/styles/components/manage/CreateJoinHousehold.css)**
   - Modal overlay and container
   - Mode tabs styling
   - Form inputs and buttons
   - Error message styling

### Theme Updates
**[frontend/src/styles/theme.css](frontend/src/styles/theme.css)**

Added simplified CSS variable aliases:
```css
--primary: var(--color-primary);
--primary-dark: var(--color-primary-dark);
--primary-light: var(--color-primary-light);
--danger: var(--color-danger);
--danger-dark: var(--color-danger-hover);
--text-primary: var(--color-text-primary);
--text-secondary: var(--color-text-secondary);
--background: var(--color-bg-body);
--border: var(--color-border-light);
--card-hover: var(--color-bg-hover);
```

## Backend Endpoints Used

All endpoints already existed - no backend changes required!

### Household Endpoints
- `GET /households` - Get user's households
- `POST /households` - Create household
- `PATCH /households/:id` - Update household name
- `DELETE /households/:id` - Delete household
- `POST /households/:id/invite/refresh` - Refresh invite code
- `POST /households/join/:inviteCode` - Join via invite code
- `GET /households/:id/members` - Get members
- `PATCH /households/:id/members/:userId/role` - Update member role
- `DELETE /households/:id/members/:userId` - Remove member

### Store Endpoints
- `GET /stores` - Get all stores
- `GET /stores/household/:householdId` - Get household stores
- `POST /stores/household/:householdId` - Add store to household
- `DELETE /stores/household/:householdId/:storeId` - Remove store
- `PATCH /stores/household/:householdId/:storeId/default` - Set default

## User Flow

### Managing Household
1. Click "Manage" in navbar
2. View household overview (name, members, invite code)
3. As admin:
   - Edit household name
   - Generate new invite codes
   - Promote/demote members
   - Remove members
   - Delete household (danger zone)

### Managing Stores
1. Click "Manage" in navbar
2. Click "Stores" tab
3. View all linked stores with default badge
4. As admin:
   - Click "+ Add Store" to see available stores
   - Click "Add" on any unlinked store
   - Click "Set as Default" on non-default stores
   - Click "Remove" to unlink store (except last one)

### Creating/Joining Household
1. Click household name in navbar
2. Click "+ Create or Join Household" at bottom of dropdown
3. Select "Create New" or "Join Existing" tab
4. Fill form and submit
5. New household appears in list and becomes active

## Responsive Design

All components are fully responsive:
- **Desktop**: Grid layouts, side-by-side buttons
- **Tablet**: Adjusted spacing, smaller grids
- **Mobile**: 
  - Single column layouts
  - Full-width buttons
  - Stacked form elements
  - Optimized spacing

## Permissions Summary

| Feature | Viewer | Member | Admin |
|---------|--------|--------|-------|
| View household info | ✅ | ✅ | ✅ |
| Edit household name | ❌ | ❌ | ✅ |
| View invite code | ❌ | ❌ | ✅ |
| Refresh invite code | ❌ | ❌ | ✅ |
| View members | ✅ | ✅ | ✅ |
| Change member roles | ❌ | ❌ | ✅ |
| Remove members | ❌ | ❌ | ✅ |
| Delete household | ❌ | ❌ | ✅ |
| View stores | ✅ | ✅ | ✅ |
| Add stores | ❌ | ❌ | ✅ |
| Remove stores | ❌ | ❌ | ✅ |
| Set default store | ❌ | ❌ | ✅ |
| Create household | ✅ | ✅ | ✅ |
| Join household | ✅ | ✅ | ✅ |

## Next Steps

Consider adding:
1. **Household Settings**: Description, profile image, preferences
2. **Member Invitations**: Direct user search instead of just invite codes
3. **Store Details**: View item counts, last activity per store
4. **Audit Log**: Track household/store changes
5. **Notifications**: Member added/removed, role changes
6. **Bulk Operations**: Remove multiple members at once
7. **Store Categories**: Group stores by region/type
8. **Export Data**: Download household grocery history

## Testing Checklist

- [ ] Create new household and verify admin role
- [ ] Generate and copy invite code
- [ ] Join household using invite code
- [ ] Edit household name as admin
- [ ] Promote member to admin
- [ ] Demote admin to member
- [ ] Remove member from household
- [ ] Add store to household
- [ ] Set default store
- [ ] Remove store (verify last store protection)
- [ ] Try admin actions as non-admin (should be hidden/disabled)
- [ ] Delete household and verify redirect
- [ ] Test responsive layouts on mobile/tablet/desktop
- [ ] Verify all error messages display properly
- [ ] Test with multiple households