import requests
import base64

# eBay API credentials
APP_ID = 'xxxxxx'
DEV_ID = 'xxxxxx'
CERT_ID = 'xxxxxxxxxxx'
EBAY_API_URL = 'https://api.ebay.com/commerce/taxonomy/v1'

# Example product title (will be dynamic in full script)
product_title = "Ryobi 18V ONE+ Blower 4.0Ah Kit"
refined_query = "Ryobi 18V ONE+ Blower 4.0Ah Kit"  # More specific query

# Step 1: Get OAuth application token
def get_oauth_token():
    auth_string = f"{APP_ID}:{CERT_ID}"
    auth_encoded = base64.b64encode(auth_string.encode('utf-8')).decode('utf-8')
    headers = {
        'Content-Type': 'application/x-www-form-urlencoded',
        'Authorization': f'Basic {auth_encoded}'
    }
    data = {
        'grant_type': 'client_credentials',
        'scope': 'https://api.ebay.com/oauth/api_scope'
    }
    response = requests.post('https://api.ebay.com/identity/v1/oauth2/token', headers=headers, data=data)
    response.raise_for_status()
    return response.json()['access_token']

try:
    # Get OAuth token
    oauth_token = get_oauth_token()
    print("Successfully obtained OAuth token")

    # Step 2: Query Taxonomy API for category suggestions
    headers = {
        'Authorization': f'Bearer {oauth_token}',
        'Content-Type': 'application/json',
        'Accept': 'application/json'
    }
    params = {
        'q': refined_query  # Use refined query
    }
    response = requests.get(f'{EBAY_API_URL}/category_tree/15/get_category_suggestions', headers=headers, params=params)
    response.raise_for_status()
    category_data = response.json()

    # Step 3: Process category suggestions
    if 'categorySuggestions' in category_data and category_data['categorySuggestions']:
        print("Category Suggestions:")
        for suggestion in category_data['categorySuggestions']:
            category_id = suggestion['category']['categoryId']
            category_name = suggestion['category']['categoryName']
            print(f"ID: {category_id} | Name: {category_name}")
        
        # Pick the first tools-related category (e.g., containing "Battery" or "Charger")
        for suggestion in category_data['categorySuggestions']:
            category_name = suggestion['category']['categoryName'].lower()
            if any(keyword in category_name for keyword in ["battery", "charger", "tool", "accessory"]):
                category_id = suggestion['category']['categoryId']
                print(f"Selected eBay Category ID: {category_id}")
                print(f"Selected Category Name: {suggestion['category']['categoryName']}")
                break
        else:
            raise Exception("No tools-related category ID found in eBay Taxonomy API response")
    else:
        raise Exception("Could not find category ID in eBay Taxonomy API response")

except requests.RequestException as e:
    print(f"API Error: {e}")
    if e.response:
        print(f"API Response: {e.response.text}")
except Exception as e:
    print(f"Error: {e}")