# 🚀 Google Drive Quick Setup Guide

If you run into `invalid_client` errors, **use the Service Account approach** (simpler and more reliable).

## ⭐ Recommended: Service Account (≈5 minutes)

### Step 1: Create a Service Account (≈2 minutes)

1. Visit [Google Cloud Console](https://console.cloud.google.com/)
2. Create a new project or select an existing one
3. Enable the Google Drive API:
   - Left menu → “APIs & Services” → “Library”
   - Search “Google Drive API” → click “Enable”
4. Create the Service Account:
   - Left menu → “IAM & Admin” → “Service Accounts”
   - Click “Create Service Account”
   - Name it `chatbot-drive-uploader`
   - Click “Create and Continue” → “Done”

### Step 2: Download the key (≈1 minute)

1. Open the Service Account you just created
2. Go to the “Keys” tab
3. Click “Add Key” → “Create new key”
4. Choose **JSON**
5. Click “Create” (the file downloads automatically)
6. Rename it to `service-account-key.json`
7. Place it in the project root (next to `google_drive_sync.py`)

### Step 3: Share the Google Drive folder (≈1 minute)

1. Create a folder in Google Drive (e.g., “Chatbot_Data”)
2. Right-click → “Share”
3. Open `service-account-key.json`, find `client_email`
   - Example: `chatbot-drive-uploader@your-project.iam.gserviceaccount.com`
4. Invite that email with “Editor” permission
5. Click “Send”

### Step 4: Update the code (≈1 minute)

Open `google_drive_sync.py` and set:

```python
SERVICE_ACCOUNT_FILE = "service-account-key.json"
```

### Done! ✅

All data will now sync to your Drive folder automatically without manual intervention.

---

## 🔄 Alternative: Fix the OAuth client (refresh token flow)

If you prefer refresh tokens, create a new OAuth client.

### Step 1: Create the OAuth client

1. Visit [Google Cloud Console](https://console.cloud.google.com/)
2. Select your project
3. Left menu → “APIs & Services” → “Credentials”
4. Click “Create Credentials” → “OAuth client ID”
5. If prompted, configure the consent screen (choose “External”)
6. App name: `Chatbot Drive Uploader`
7. User support email: your email
8. Developer contact: your email
9. Click through “Save and Continue” to finish
10. Click “Create Credentials” → “OAuth client ID” again
11. Choose **“Desktop app”**
12. Name it `Chatbot Desktop Client`
13. Click “Create”
14. Copy the **Client ID** and **Client secret**

### Step 2: Update the code

```python
CLIENT_ID = "your new client id"
CLIENT_SECRET = "your new client secret"
```

### Step 3: Fetch a new refresh token

```bash
python get_refresh_token.py
```

---

## 📝 Notes

- The Service Account JSON is sensitive — **never commit it to Git**
- Add `service-account-key.json` to `.gitignore`
- Service Accounts are safer because no user credentials live in code