import requests
import json
from datetime import datetime

# Your current user access token
USER_ACCESS_TOKEN = 'EAAaa4YEgkEcBPs4IxQdEMm4Q9Au6xvseEs3GXnTDOmQBcZC4NPNfev4LJvuIz9Af3rLBHN2XcAek8dZBdbcQGLCx4ZA2l4R7edjMY3m2SbQZAm3rfTwvmWWIDGl3P0j4ymoBZAZCGZB3h5lVSiqw8aGXLxz75eX26TTc3C47JPKj4sZCcL7XkF3kZAqkjTFEd935Agoy4JeYQlGDzDS0L89kOnMt8UZAZC71ge0EDd6DZAc2vAmRMAZDZD'

def verify_token(access_token, token_name="Token"):
    """
    Verify the access token and display its validity information.
    """
    url = 'https://graph.facebook.com/debug_token'
    params = {
        'input_token': access_token,
        'access_token': access_token
    }
    
    try:
        response = requests.get(url, params=params)
        data = response.json()
        
        if 'data' in data:
            token_info = data['data']
            print(f"\n=== {token_name} Validity ===")
            is_valid = token_info.get('is_valid', False)
            print(f"Is Valid: {'✓ YES' if is_valid else '✗ NO'}")
            
            if not is_valid:
                print("⚠️  TOKEN IS INVALID!")
                return data
            
            # Check expiration
            if 'expires_at' in token_info:
                expires_at = token_info['expires_at']
                if expires_at == 0:
                    print("Expiration: ♾️  Never expires (long-lived token)")
                else:
                    expiry_date = datetime.fromtimestamp(expires_at)
                    print(f"Expires At: {expiry_date.strftime('%Y-%m-%d %H:%M:%S')}")
                    
                    # Calculate time remaining
                    now = datetime.now()
                    if expiry_date > now:
                        time_left = expiry_date - now
                        days_left = time_left.days
                        hours_left = time_left.seconds // 3600
                        print(f"Time Remaining: {days_left} days, {hours_left} hours")
                    else:
                        print("Status: ⚠️  TOKEN EXPIRED!")
            
            # Display data access expiration
            if 'data_access_expires_at' in token_info:
                data_expires_at = token_info['data_access_expires_at']
                if data_expires_at > 0:
                    data_expiry = datetime.fromtimestamp(data_expires_at)
                    print(f"Data Access Expires: {data_expiry.strftime('%Y-%m-%d %H:%M:%S')}")
            
            print(f"Token Type: {token_info.get('type', 'N/A')}")
            print(f"App ID: {token_info.get('app_id', 'N/A')}")
            
            scopes = token_info.get('scopes', [])
            if scopes:
                print(f"Permissions: {', '.join(scopes)}")
        
        return data
    except Exception as e:
        print(f"Error verifying {token_name}: {e}")
        return None

def get_page_access_tokens(user_token):
    """
    Get all pages managed by the user and their page access tokens.
    """
    url = 'https://graph.facebook.com/me/accounts'
    params = {'access_token': user_token}
    
    try:
        response = requests.get(url, params=params)
        response.raise_for_status()
        data = response.json()
        
        print("\n=== Your Facebook Pages ===\n")
        
        if 'data' in data and len(data['data']) > 0:
            for i, page in enumerate(data['data'], 1):
                print(f"Page {i}:")
                print(f"  Name: {page.get('name')}")
                print(f"  ID: {page.get('id')}")
                print(f"  Access Token: {page.get('access_token')}")
                print(f"  Category: {page.get('category')}")
                print()
                
                # If this is the page we're trying to post to
                if page.get('id') == '419648507899848':
                    print("👉 THIS IS YOUR TARGET PAGE!")
                    print(f"   Copy this access token to fb_post.py: {page.get('access_token')}")
                    print()
        else:
            print("No pages found or you don't have access to manage any pages.")
            print("\nMake sure:")
            print("1. You are an admin of the page")
            print("2. Your token has 'pages_show_list' permission")
            
        return data
        
    except requests.exceptions.RequestException as e:
        print(f"Error: {e}")
        if hasattr(e, 'response') and e.response is not None:
            print(f"Response: {e.response.text}")
        return None

if __name__ == "__main__":
    print("=== Facebook Page Token Checker ===")
    
    # Step 1: Verify the user access token
    print("\nStep 1: Checking User Access Token validity...")
    verify_token(USER_ACCESS_TOKEN, "User Access Token")
    
    # Step 2: Get page access tokens
    print("\nStep 2: Fetching Page Access Tokens...")
    get_page_access_tokens(USER_ACCESS_TOKEN)