Initial commit: Pantry inventory tracker

A simple web app for tracking kitchen pantry items with:
- Search and filter by stock status, spices, or container type
- PIN-protected editing
- Shopping list export (tap Out of Stock to copy)
- QR code for quick mobile access
- OpenGraph card for social sharing

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

.gitignore

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+# User data
+data/
+
+# macOS
+.DS_Store
+
+# Editor files
+*.swp
+*.swo
+*~
+
+# Claude Code local settings
+.claude/
+
+# Archives
+*.zip

CLAUDE.md

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+# CLAUDE.md
+
+This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
+
+## Project Overview
+
+Pantry is a simple web app for tracking kitchen pantry items. It's a single-page application with no build step, consisting of just two files:
+- `index.html` - Frontend (HTML/CSS/JS all in one file)
+- `api.php` - Backend API (JSON file-based storage)
+
+## Architecture
+
+**Frontend (`index.html`)**:
+- Vanilla JavaScript, no frameworks
+- Uses QRCode.js from CDN for QR code generation
+- Custom CSS with CSS variables for theming (earthy color palette: cream, terracotta, forest green)
+- Container types defined in `containerTypes` object (around line 754) - must be kept in sync with backend
+- All API calls go through the `apiCall()` function which POSTs to `api.php`
+
+**Backend (`api.php`)**:
+- JSON file-based storage in `data/` directory
+- Endpoints: `get`, `add`, `update`, `delete`, `setPin`, `verifyPin`
+- Default inventory defined in `$defaultInventory` array (lines 31-64)
+- Container types should match frontend when modified
+
+**Data Storage**:
+- `data/inventory.json` - Inventory items
+- `data/pin.txt` - 4-digit PIN for edit mode (plain text, view-only protection)
+
+## Development
+
+This is a no-build project. To test locally:
+
+```bash
+php -S localhost:8000
+```
+
+Then open `http://localhost:8000` in a browser.
+
+## Key Implementation Details
+
+- PIN system is view-only protection (anyone can view, PIN required to edit)
+- PIN stored in plain text - adequate for household use only
+- Items have: `id`, `name`, `container` (type), `outOfStock` (boolean)
+- Frontend sorts items: in-stock first, then alphabetically
+- 8 container types with color-coded dots in UI
+
+## Deployment
+
+Designed for YunoHost "My Webapp" deployment. Upload `index.html` and `api.php` to the `www/` folder. The `data/` directory is created automatically and must be writable by the web server.

README.md

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+# Pantry Inventory App
+
+A simple web app for tracking kitchen pantry items across your household.
+
+## Features
+
+- **Search** - Instantly filter ingredients by name
+- **Container tracking** - 8 container types with color-coded indicators
+- **Stock status** - Mark items as in-stock or out-of-stock
+- **PIN protection** - Anyone can view, but editing requires a 4-digit PIN
+- **QR Code** - Generate a scannable code to post on your pantry shelf
+- **Shared data** - All household members see the same inventory
+
+## Deployment on YunoHost (My Webapp)
+
+### 1. Install My Webapp
+
+In YunoHost admin panel:
+1. Go to **Applications** → **Install**
+2. Search for "My Webapp"
+3. Configure:
+   - **Label**: Pantry (or whatever you prefer)
+   - **Domain/Path**: e.g., `yourdomain.com/pantry`
+   - **PHP version**: 8.2 or higher
+   - **Database**: None needed
+4. Install
+
+### 2. Upload Files
+
+Connect via SFTP using the credentials shown after installation, then upload to the `www` folder:
+
+```
+www/
+├── index.html      (the main app)
+├── api.php         (backend API)
+└── data/           (created automatically)
+    ├── inventory.json
+    └── pin.txt
+```
+
+### 3. Set Permissions
+
+The `data` folder needs to be writable by the web server. This should happen automatically, but if you have issues:
+
+```bash
+# SSH into your YunoHost server
+cd /var/www/pantry/www   # adjust path as needed
+mkdir -p data
+chmod 755 data
+```
+
+### 4. First Use
+
+1. Visit your app URL (e.g., `https://yourdomain.com/pantry`)
+2. The app loads with a pre-populated inventory based on your photos
+3. Tap the lock icon → Set a 4-digit PIN for your household
+4. Share the PIN with family members who need edit access
+5. Go to the QR Code tab and print it for your pantry
+
+## File Structure
+
+```
+index.html    - Frontend (HTML/CSS/JS, no build step)
+api.php       - Backend API (reads/writes JSON files)
+data/
+  inventory.json  - Your inventory data
+  pin.txt         - Stored PIN (hashed would be better for production)
+```
+
+## Container Types
+
+The app supports these container types (edit in both index.html and api.php if you want to change them):
+
+| ID | Name |
+|----|------|
+| glass-bail-large | Glass Bail Jar (Large) |
+| glass-bail-medium | Glass Bail Jar (Medium) |
+| glass-bail-small | Glass Bail Jar (Small) |
+| oxo-large | OXO Container (Large) |
+| oxo-medium | OXO Container (Medium) |
+| oxo-small | OXO Container (Small) |
+| original-package | Original Package |
+| mason-jar | Mason Jar |
+
+## Customization
+
+### Adding Container Types
+
+1. In `index.html`, find the `containerTypes` object and add your new type
+2. In the `<select>` dropdown for containers, add a new `<option>`
+
+### Changing the Default Inventory
+
+Edit the `$defaultInventory` array in `api.php`. This only applies on first run (before `inventory.json` exists).
+
+### Resetting Everything
+
+Delete the `data` folder contents to start fresh:
+```bash
+rm data/inventory.json data/pin.txt
+```
+
+## Security Notes
+
+- The PIN is stored in plain text. This is fine for a household app where you just want to prevent accidental edits, but don't use this for anything sensitive.
+- There's no authentication beyond the PIN - anyone with the URL can view your inventory.
+- For a more secure setup, you could put the app behind YunoHost's SSO.
+
+## Backup
+
+YunoHost's My Webapp will backup the entire `www` folder including `data/`. Your inventory and PIN are automatically included in YunoHost backups.
+
+## Troubleshooting
+
+**"Connection error" message**
+- Check that PHP is enabled for your My Webapp instance
+- Verify the `data` folder is writable
+
+**PIN not working**
+- Check that `data/pin.txt` exists and contains exactly 4 digits
+- Try deleting `data/pin.txt` to reset
+
+**Inventory not saving**
+- Check `data/inventory.json` permissions
+- Look for PHP errors in YunoHost logs

api.php

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+<?php
+/**
+ * Pantry Inventory API
+ * 
+ * Simple JSON file-based backend for the pantry inventory app.
+ * No database required - stores everything in inventory.json
+ */
+
+header('Content-Type: application/json');
+header('Access-Control-Allow-Origin: *');
+header('Access-Control-Allow-Methods: POST, GET, OPTIONS');
+header('Access-Control-Allow-Headers: Content-Type');
+
+// Handle preflight requests
+if ($_SERVER['REQUEST_METHOD'] === 'OPTIONS') {
+    http_response_code(200);
+    exit();
+}
+
+// File paths
+define('DATA_FILE', __DIR__ . '/data/inventory.json');
+define('PIN_FILE', __DIR__ . '/data/pin.txt');
+define('DATA_DIR', __DIR__ . '/data');
+
+// Ensure data directory exists
+if (!is_dir(DATA_DIR)) {
+    mkdir(DATA_DIR, 0755, true);
+}
+
+// Default inventory (sample data using new container types)
+$defaultInventory = [
+    ['id' => 1, 'name' => 'Bulgur', 'container' => 'glass-flip-med-tall', 'outOfStock' => false],
+    ['id' => 2, 'name' => 'Wild Rice Flour', 'container' => 'glass-flip-med-squat', 'outOfStock' => false],
+    ['id' => 3, 'name' => 'Self Rising Flour', 'container' => 'plastic-oxo-large', 'outOfStock' => false],
+    ['id' => 4, 'name' => 'Whole Wheat Flour', 'container' => 'plastic-oxo-large', 'outOfStock' => false],
+    ['id' => 5, 'name' => 'Cake Flour', 'container' => 'plastic-clamp-large', 'outOfStock' => false],
+    ['id' => 6, 'name' => 'GF Pancake Mix', 'container' => 'original-package', 'outOfStock' => false],
+    ['id' => 7, 'name' => 'Coconut Flour', 'container' => 'glass-flip-small', 'outOfStock' => false],
+    ['id' => 8, 'name' => 'All Purpose Flour', 'container' => 'plastic-oxo-large', 'outOfStock' => false],
+    ['id' => 9, 'name' => 'Bread Flour', 'container' => 'plastic-clamp-tall', 'outOfStock' => false],
+    ['id' => 10, 'name' => 'Powdered Sugar', 'container' => 'plastic-flip', 'outOfStock' => false],
+    ['id' => 11, 'name' => 'Linguine', 'container' => 'original-package', 'outOfStock' => false],
+    ['id' => 12, 'name' => 'Fettuccine', 'container' => 'original-package', 'outOfStock' => false],
+    ['id' => 13, 'name' => 'Penne Rigate', 'container' => 'original-package', 'outOfStock' => false],
+    ['id' => 14, 'name' => 'Ancho Chile', 'container' => 'glass-flip-large', 'outOfStock' => false],
+    ['id' => 15, 'name' => 'Chocolate Chips', 'container' => 'glass-canning-quart', 'outOfStock' => false],
+    ['id' => 16, 'name' => 'Dried Mushrooms', 'container' => 'glass-canning-pint', 'outOfStock' => false],
+    ['id' => 17, 'name' => 'Bay Leaves', 'container' => 'spice-hex-large', 'outOfStock' => false],
+    ['id' => 18, 'name' => 'Dates', 'container' => 'glass-canning-quart', 'outOfStock' => false],
+    ['id' => 19, 'name' => 'Xanthan Gum', 'container' => 'spice-flip-tiny', 'outOfStock' => false],
+    ['id' => 20, 'name' => 'M.S.G.', 'container' => 'spice-hex-small', 'outOfStock' => false],
+    ['id' => 21, 'name' => 'Potato Starch', 'container' => 'glass-flip-small', 'outOfStock' => false],
+    ['id' => 22, 'name' => 'Potato Flour', 'container' => 'glass-flip-small', 'outOfStock' => false],
+    ['id' => 23, 'name' => 'Garbanzo Flour', 'container' => 'glass-flip-med-squat', 'outOfStock' => false],
+    ['id' => 24, 'name' => 'Mochi Rice Flour', 'container' => 'glass-flip-small', 'outOfStock' => false],
+    ['id' => 25, 'name' => 'Couscous', 'container' => 'original-package', 'outOfStock' => false],
+    ['id' => 26, 'name' => 'Granola', 'container' => 'original-package', 'outOfStock' => false],
+    ['id' => 27, 'name' => 'Cheerios', 'container' => 'original-package', 'outOfStock' => false],
+    ['id' => 28, 'name' => 'Baking Powder', 'container' => 'spice-hex-large', 'outOfStock' => false],
+    ['id' => 29, 'name' => 'Corn Starch', 'container' => 'glass-canning-small', 'outOfStock' => false],
+    ['id' => 30, 'name' => 'Cocoa Powder', 'container' => 'spice-hex-large', 'outOfStock' => false],
+];
+
+/**
+ * Load inventory from file
+ */
+function loadInventory() {
+    global $defaultInventory;
+    
+    if (file_exists(DATA_FILE)) {
+        $content = file_get_contents(DATA_FILE);
+        $data = json_decode($content, true);
+        if ($data !== null) {
+            return $data;
+        }
+    }
+    
+    // Initialize with default inventory
+    saveInventory($defaultInventory);
+    return $defaultInventory;
+}
+
+/**
+ * Save inventory to file
+ */
+function saveInventory($inventory) {
+    file_put_contents(DATA_FILE, json_encode($inventory, JSON_PRETTY_PRINT));
+}
+
+/**
+ * Check if PIN is set
+ */
+function hasPinSet() {
+    return file_exists(PIN_FILE) && strlen(trim(file_get_contents(PIN_FILE))) === 4;
+}
+
+/**
+ * Get stored PIN
+ */
+function getPin() {
+    if (file_exists(PIN_FILE)) {
+        return trim(file_get_contents(PIN_FILE));
+    }
+    return null;
+}
+
+/**
+ * Set PIN
+ */
+function setPin($pin) {
+    file_put_contents(PIN_FILE, $pin);
+    // Secure the file
+    chmod(PIN_FILE, 0600);
+}
+
+/**
+ * Verify PIN
+ */
+function verifyPin($pin) {
+    $storedPin = getPin();
+    return $storedPin !== null && $storedPin === $pin;
+}
+
+/**
+ * Get next available ID
+ */
+function getNextId($inventory) {
+    if (empty($inventory)) {
+        return 1;
+    }
+    $maxId = max(array_column($inventory, 'id'));
+    return $maxId + 1;
+}
+
+/**
+ * Sanitize string input
+ */
+function sanitize($str) {
+    return trim($str);
+}
+
+// Main request handling
+$input = json_decode(file_get_contents('php://input'), true);
+
+if (!$input || !isset($input['action'])) {
+    // Allow GET requests to view inventory
+    if ($_SERVER['REQUEST_METHOD'] === 'GET') {
+        $inventory = loadInventory();
+        echo json_encode([
+            'success' => true,
+            'inventory' => $inventory,
+            'hasPin' => hasPinSet()
+        ]);
+        exit();
+    }
+    
+    echo json_encode(['error' => 'Invalid request']);
+    exit();
+}
+
+$action = $input['action'];
+
+switch ($action) {
+    case 'get':
+        $inventory = loadInventory();
+        echo json_encode([
+            'success' => true,
+            'inventory' => $inventory,
+            'hasPin' => hasPinSet()
+        ]);
+        break;
+        
+    case 'setPin':
+        $pin = $input['pin'] ?? '';
+        
+        if (strlen($pin) !== 4 || !ctype_digit($pin)) {
+            echo json_encode(['success' => false, 'error' => 'PIN must be 4 digits']);
+            break;
+        }
+        
+        // Only allow setting PIN if not already set
+        if (hasPinSet()) {
+            echo json_encode(['success' => false, 'error' => 'PIN already set']);
+            break;
+        }
+        
+        setPin($pin);
+        echo json_encode(['success' => true]);
+        break;
+        
+    case 'verifyPin':
+        $pin = $input['pin'] ?? '';
+        $valid = verifyPin($pin);
+        echo json_encode(['success' => $valid]);
+        break;
+        
+    case 'add':
+        $name = sanitize($input['name'] ?? '');
+        $container = sanitize($input['container'] ?? 'glass-bail-medium');
+        $outOfStock = (bool)($input['outOfStock'] ?? false);
+        
+        if (empty($name)) {
+            echo json_encode(['success' => false, 'error' => 'Name required']);
+            break;
+        }
+        
+        $inventory = loadInventory();
+        $newItem = [
+            'id' => getNextId($inventory),
+            'name' => $name,
+            'container' => $container,
+            'outOfStock' => $outOfStock
+        ];
+        
+        $inventory[] = $newItem;
+        saveInventory($inventory);
+        
+        echo json_encode(['success' => true, 'item' => $newItem]);
+        break;
+        
+    case 'update':
+        $id = (int)($input['id'] ?? 0);
+        $name = sanitize($input['name'] ?? '');
+        $container = sanitize($input['container'] ?? '');
+        $outOfStock = (bool)($input['outOfStock'] ?? false);
+        
+        if ($id <= 0) {
+            echo json_encode(['success' => false, 'error' => 'Invalid ID']);
+            break;
+        }
+        
+        $inventory = loadInventory();
+        $found = false;
+        
+        foreach ($inventory as &$item) {
+            if ($item['id'] === $id) {
+                if (!empty($name)) $item['name'] = $name;
+                if (!empty($container)) $item['container'] = $container;
+                $item['outOfStock'] = $outOfStock;
+                $found = true;
+                break;
+            }
+        }
+        
+        if (!$found) {
+            echo json_encode(['success' => false, 'error' => 'Item not found']);
+            break;
+        }
+        
+        saveInventory($inventory);
+        echo json_encode(['success' => true]);
+        break;
+        
+    case 'delete':
+        $id = (int)($input['id'] ?? 0);
+        
+        if ($id <= 0) {
+            echo json_encode(['success' => false, 'error' => 'Invalid ID']);
+            break;
+        }
+        
+        $inventory = loadInventory();
+        $originalCount = count($inventory);
+        $inventory = array_values(array_filter($inventory, fn($item) => $item['id'] !== $id));
+        
+        if (count($inventory) === $originalCount) {
+            echo json_encode(['success' => false, 'error' => 'Item not found']);
+            break;
+        }
+        
+        saveInventory($inventory);
+        echo json_encode(['success' => true]);
+        break;
+        
+    default:
+        echo json_encode(['error' => 'Unknown action']);
+}

containers.json

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+{
+  "categories": [
+    {
+      "name": "Glass Jars",
+      "containers": [
+        { "id": "glass-flip-large", "name": "Flip Top (Large)", "color": "#C4684A" },
+        { "id": "glass-flip-med-tall", "name": "Flip Top (Medium Tall)", "color": "#D4856B" },
+        { "id": "glass-flip-med-squat", "name": "Flip Top (Medium Squat)", "color": "#E07B5B" },
+        { "id": "glass-flip-small", "name": "Flip Top (Small)", "color": "#E8A88B" },
+        { "id": "glass-canning-quart", "name": "Canning Jar (Quart)", "color": "#6B8E9B" },
+        { "id": "glass-canning-pint", "name": "Canning Jar (Pint)", "color": "#7FA3B0" },
+        { "id": "glass-canning-small", "name": "Canning Jar (Small)", "color": "#93B8C5" }
+      ]
+    },
+    {
+      "name": "Plastic Containers",
+      "containers": [
+        { "id": "plastic-oxo-large", "name": "OXO Large", "color": "#2D4739" },
+        { "id": "plastic-flip", "name": "Flip Top", "color": "#3D5A4B" },
+        { "id": "plastic-clamp-large", "name": "Clamp Top (Large)", "color": "#4D6A5B" },
+        { "id": "plastic-clamp-tall", "name": "Clamp Top (Tall)", "color": "#5D7A6B" }
+      ]
+    },
+    {
+      "name": "Glass Spice Jars",
+      "containers": [
+        { "id": "spice-hex-large", "name": "Hex (Large)", "color": "#8B7355" },
+        { "id": "spice-hex-small", "name": "Hex (Small)", "color": "#A08668" },
+        { "id": "spice-flip-tiny", "name": "Flip Top (Tiny)", "color": "#B5997B" }
+      ]
+    },
+    {
+      "name": "Other",
+      "containers": [
+        { "id": "original-package", "name": "Original Packaging", "color": "#9A9590" }
+      ]
+    }
+  ]
+}

deploy

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+#!/bin/sh
+USER=admin
+HOST=social
+DIR=/var/www/my_webapp__2/www
+
+# Deploy code files
+rsync -avz --no-t --no-p --delete \
+    --exclude 'data/' \
+    index.html api.php containers.json og-image.png ${HOST}:${DIR}
+
+# Handle data files
+if [ "$1" = "--reset-data" ]; then
+    echo "Pushing local data to server..."
+    rsync -avz --no-t --no-p \
+        data/ ${HOST}:${DIR}/data/
+else
+    echo "Pulling data from server..."
+    mkdir -p data
+    rsync -avz --no-t --no-p \
+        --exclude 'pin.txt' \
+        ${HOST}:${DIR}/data/ data/
+fi
+
+exit 0

og-image.svg

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+<svg width="1200" height="630" xmlns="http://www.w3.org/2000/svg">
+  <defs>
+    <linearGradient id="bg" x1="0%" y1="0%" x2="0%" y2="100%">
+      <stop offset="0%" style="stop-color:#FAF8F5"/>
+      <stop offset="100%" style="stop-color:#F5F0E8"/>
+    </linearGradient>
+  </defs>
+
+  <!-- Background -->
+  <rect width="1200" height="630" fill="url(#bg)"/>
+
+  <!-- Jar emoji as text (large) -->
+  <text x="600" y="280" font-size="180" text-anchor="middle" dominant-baseline="middle">🫙</text>
+
+  <!-- Title -->
+  <text x="600" y="420" font-family="Georgia, serif" font-size="72" font-weight="600" fill="#2D5A3D" text-anchor="middle">Pantry</text>
+
+  <!-- Subtitle -->
+  <text x="600" y="490" font-family="Arial, sans-serif" font-size="32" fill="#8B7355" text-anchor="middle">Kitchen Inventory Tracker</text>
+</svg>