# 🔧 AppWrite Collection Setup Guide

## Problem Identified ❌

Your AppWrite collections are missing the required `userId` attribute. The error shows:
```
Invalid query: Attribute not found in schema: userId
```

## Required Collections & Attributes ✅

You need to create these **exact** collections with **exact** attributes in your AppWrite console:

### 1. Collection: `amazon-ext-enhanced-items`
**Purpose**: Enhanced items with AI-generated titles

**Required Attributes**:
```
userId          (string, required, 255 chars)    - User identification
title           (string, required, 500 chars)    - Product title  
url             (string, required, 1000 chars)   - Product URL
price           (string, optional, 50 chars)     - Product price
image           (string, optional, 1000 chars)   - Product image URL
brand           (string, optional, 100 chars)    - Product brand
aiTitle         (string, optional, 500 chars)    - AI-generated title
createdAt       (datetime, required)             - Creation timestamp
updatedAt       (datetime, required)             - Last update timestamp
```

### 2. Collection: `amazon-ext-saved-products`
**Purpose**: Basic saved products

**Required Attributes**:
```
userId          (string, required, 255 chars)    - User identification
title           (string, required, 500 chars)    - Product title
url             (string, required, 1000 chars)   - Product URL
price           (string, optional, 50 chars)     - Product price
image           (string, optional, 1000 chars)   - Product image URL
createdAt       (datetime, required)             - Creation timestamp
```

### 3. Collection: `amazon_ext_blacklist`
**Purpose**: Blacklisted brands per user

**Required Attributes**:
```
userId          (string, required, 255 chars)    - User identification
brand           (string, required, 100 chars)    - Brand name
createdAt       (datetime, required)             - Creation timestamp
```

### 4. Collection: `amazon-ext-enhanced-settings`
**Purpose**: User settings and API keys (encrypted)

**Required Attributes**:
```
userId          (string, required, 255 chars)    - User identification
settingKey      (string, required, 100 chars)    - Setting key name
settingValue    (string, required, 2000 chars)   - Setting value (encrypted for sensitive data)
isEncrypted     (boolean, required)              - Whether value is encrypted
updatedAt       (datetime, required)             - Last update timestamp
```

### 5. Collection: `amazon-ext-migration-status`
**Purpose**: Track data migration from localStorage

**Required Attributes**:
```
userId          (string, required, 255 chars)    - User identification
migrationType   (string, required, 50 chars)     - Type of migration
status          (string, required, 20 chars)     - 'pending', 'completed', 'failed'
itemCount       (integer, optional)              - Number of items migrated
errorMessage    (string, optional, 1000 chars)   - Error message if failed
completedAt     (datetime, optional)             - Completion timestamp
```

## Step-by-Step Setup Instructions 📋

### Step 1: Access AppWrite Console
1. Go to your AppWrite console: https://appwrite.webklar.com (or your AppWrite URL)
2. Login with your credentials
3. Select your project: `6963df38003b96dab5aa`

### Step 2: Navigate to Database
1. Click "Databases" in the left sidebar
2. Select database: `amazon-extension-db`
3. You should see your existing collections

### Step 3: Fix Each Collection
For **each collection** listed above:

1. **Click on the collection name**
2. **Go to "Attributes" tab**
3. **Check if `userId` attribute exists**
4. **If missing, click "Create Attribute"**:
   - Type: `String`
   - Key: `userId`
   - Size: `255`
   - Required: `Yes`
   - Array: `No`
5. **Add any other missing attributes** from the lists above

### Step 4: Set Permissions
For each collection, go to "Settings" tab and set permissions:

**CRITICAL PERMISSIONS** (must be exact):
- **Create**: `users`
- **Read**: `user:$userId` 
- **Update**: `user:$userId`
- **Delete**: `user:$userId`

**How to set permissions**:
1. Click on collection name
2. Click "Settings" tab (not "Attributes")
3. Scroll to "Permissions" section
4. For each permission type, click "Add a permission"
5. Select the appropriate permission from dropdown
6. Click "Update" to save

**What these permissions mean**:
- `users` = Any authenticated user
- `user:$userId` = Only the user whose ID matches the document's userId field

This ensures **data isolation** - users can only see their own data!

## Quick Fix Commands 🚀

If you have AppWrite CLI installed, you can run these commands:

```bash
# Add userId attribute to enhanced-items collection
appwrite databases createStringAttribute \
  --databaseId amazon-extension-db \
  --collectionId amazon-ext-enhanced-items \
  --key userId \
  --size 255 \
  --required true

# Add userId attribute to saved-products collection  
appwrite databases createStringAttribute \
  --databaseId amazon-extension-db \
  --collectionId amazon-ext-saved-products \
  --key userId \
  --size 255 \
  --required true

# Add userId attribute to blacklist collection
appwrite databases createStringAttribute \
  --databaseId amazon-extension-db \
  --collectionId amazon_ext_blacklist \
  --key userId \
  --size 255 \
  --required true

# Add userId attribute to settings collection
appwrite databases createStringAttribute \
  --databaseId amazon-extension-db \
  --collectionId amazon-ext-enhanced-settings \
  --key userId \
  --size 255 \
  --required true

# Add userId attribute to migration-status collection
appwrite databases createStringAttribute \
  --databaseId amazon-extension-db \
  --collectionId amazon-ext-migration-status \
  --key userId \
  --size 255 \
  --required true
```

## Verification ✅

After adding the attributes, test the extension:

1. **Reload the extension** in Chrome
2. **Go to Amazon** (amazon.de/s?k=smartphone)
3. **Check browser console** - should see no more "userId" errors
4. **Try Enhanced Items** - should work without errors

## Expected Console Messages ✅

After fixing the collections, you should see:
```
✅ AppWrite connection successful
✅ Collections accessible
✅ Real-time sync working
✅ No more "userId" errors
```

## If You Still See Errors ❌

1. **Double-check collection names** - they must match exactly
2. **Verify attribute names** - `userId` is case-sensitive
3. **Check permissions** - users must have read/write access
4. **Clear browser cache** - reload the extension completely

## Alternative: Recreate Collections 🔄

If adding attributes doesn't work, you can:

1. **Delete existing collections** (backup data first!)
2. **Create new collections** with all required attributes
3. **Set proper permissions**
4. **Test the extension**

This will give you a clean setup that matches the extension's expectations.