#!/usr/bin/env python3
"""
WhatsApp Discovery Readiness Check

Checks if we're ready to run WhatsApp discovery tests.
Shows what would be tested once API token is available.
"""

import os
import sys
from pathlib import Path

def check_readiness():
    """Check if we're ready for WhatsApp discovery."""
    print("🔍 WhatsApp Discovery Readiness Check")
    print("=" * 50)
    
    # Check 1: API Token
    token = os.getenv("WHATSAPP_BUSINESS_TOKEN")
    if token:
        print("✅ WHATSAPP_BUSINESS_TOKEN is set")
        print(f"   Token length: {len(token)} characters")
        if token.startswith('EAAC'):
            print("✅ Token appears to be a valid Facebook/WhatsApp Business token")
        else:
            print("⚠️  Token format unknown (should start with EAAC)")
    else:
        print("❌ WHATSAPP_BUSINESS_TOKEN is NOT set")
        print("\nTo set up the token:")
        print("1. Get token from Facebook Business API")
        print("2. Run: export WHATSAPP_BUSINESS_TOKEN='your_token_here'")
        print("3. Or add to .env file")
    
    print()
    
    # Check 2: Phone numbers to test
    phone_numbers = [
        {"name": "Bas Schreuder", "base": "3162940", "code": "31"},
        {"name": "Bjorn de Jong", "base": "3161489", "code": "31"},
        {"name": "Mylène Da Silva", "base": "3165313", "code": "31"}
    ]
    
    print("📱 Phone Numbers Ready to Test:")
    for i, p in enumerate(phone_numbers, 1):
        full = f"{p['code']}{p['base']}XXXX"
        print(f"   {i}. {p['name']}: {full}")
    
    print()
    
    # Check 3: Test script exists
    script_path = Path("whatsapp_discovery_simple.py")
    if script_path.exists():
        print("✅ WhatsApp discovery script exists")
        print("   Script: whatsapp_discovery_simple.py")
        print("   Method: 10 variations (last digit replacement)")
    else:
        print("❌ WhatsApp discovery script NOT found")
    
    print()
    
    # Show what will be tested
    if token:
        print("🚀 Ready to run discovery tests!")
        print("\nCommands to run:")
        for p in phone_numbers:
            print(f"   python whatsapp_discovery_simple.py {p['base']} {p['code']}")
        print("\nEach test will:")
        print("  - Test 10 phone number variations")
        print("  - Store raw API responses")
        print("  - Save results to timestamped JSON file")
        print("  - Show immediate results for found accounts")
    else:
        print("⏸️  Waiting for API token setup...")
        print("\nNext steps:")
        print("  1. Obtain WhatsApp Business API token")
        print("  2. Set WHATSAPP_BUSINESS_TOKEN environment variable")
        print("  3. Run discovery tests")
    
    print()
    print("📊 Expected Output Format:")
    print("""
{
  "test_metadata": {
    "phone_base": "313162940XXXX",
    "country_code": "31",
    "test_date": "2025-01-12T...",
    "method": "10_variations_last_digit_replacement",
    "total_tested": 10
  },
  "raw_results": [
    {
      "phone": "3162940123",
      "attempt": 1,
      "status_code": 200,
      "status": "success",
      "exists": true,
      "display_name": "Bas Schreuder",
      "is_business": false,
      "last_activity": "2025-01-10",
      "raw_response": "{...full API response...}",
      "headers": {...}
    }
  ]
}
    """)

if __name__ == "__main__":
    check_readiness()