#!/usr/bin/env python3
"""
Sync CVR numbers from vTiger to local customers database
"""
import sys
import os
import asyncio
from dotenv import load_dotenv

# Load environment variables
load_dotenv()

# Override DATABASE_URL for local execution
if "postgres:5432" in os.getenv("DATABASE_URL", ""):
    os.environ["DATABASE_URL"] = os.getenv("DATABASE_URL").replace("postgres:5432", "localhost:5433")

# Add parent directory to path
sys.path.insert(0, os.path.join(os.path.dirname(__file__), '..'))

from app.core.database import execute_query, execute_update, init_db
from app.services.vtiger_service import get_vtiger_service


async def sync_cvr_numbers():
    """Sync CVR numbers from vTiger Accounts to local customers"""
    
    print("🔌 Forbinder til database...")
    init_db()
    
    print("🔌 Forbinder til vTiger...")
    vtiger = get_vtiger_service()
    
    # Test connection
    if not await vtiger.test_connection():
        print("❌ vTiger forbindelse fejlede")
        return
    
    # Get all customers with vtiger_id but no cvr_number
    print("\n📊 Henter kunder uden CVR...")
    customers = execute_query("""
        SELECT id, name, vtiger_id, cvr_number
        FROM customers 
        WHERE vtiger_id IS NOT NULL 
        AND (cvr_number IS NULL OR cvr_number = '')
        ORDER BY name
    """)
    
    print(f"✅ Fundet {len(customers)} kunder uden CVR\n")
    
    if len(customers) == 0:
        print("✅ Alle kunder har allerede CVR numre!")
        return
    
    # Fetch all accounts from Simply-CRM (vTiger) with CVR
    print("📥 Henter alle firmaer fra Simply-CRM (bmcnetworks.simply-crm.dk)...")
    
    # Get all accounts in batches
    all_accounts = []
    batch_size = 100
    total_fetched = 0
    
    while True:
        query = f"SELECT id, accountname, cf_accounts_cvr FROM Accounts LIMIT {batch_size} OFFSET {total_fetched};"
        try:
            batch = await vtiger.query(query)
        except:
            # If OFFSET fails, just get what we can
            if total_fetched == 0:
                query = "SELECT id, accountname, cf_accounts_cvr FROM Accounts LIMIT 10000;"
                batch = await vtiger.query(query)
                all_accounts.extend(batch)
            break
        
        if not batch or len(batch) == 0:
            break
        
        all_accounts.extend(batch)
        total_fetched += len(batch)
        print(f"  ... hentet {total_fetched} firmaer")
        
        if len(batch) < batch_size:
            break
    
    accounts = all_accounts
    print(f"✅ Fundet {len(accounts)} firmaer i Simply-CRM")
    
    # Filter to only those with CVR
    accounts_with_cvr = {
        acc['id']: acc['cf_accounts_cvr'].strip() 
        for acc in accounts 
        if acc.get('cf_accounts_cvr') and acc['cf_accounts_cvr'].strip()
    }
    
    print(f"✅ {len(accounts_with_cvr)} firmaer har CVR nummer i Simply-CRM\n")
    
    # Match and update
    updated = 0
    skipped = 0
    
    print("🔄 Opdaterer CVR numre...\n")
    
    for customer in customers:
        vtiger_id = customer['vtiger_id']
        
        if vtiger_id in accounts_with_cvr:
            cvr = accounts_with_cvr[vtiger_id]
            
            # Clean CVR (remove spaces, dashes)
            cvr_clean = cvr.replace(' ', '').replace('-', '')
            
            # Update customer
            execute_update(
                "UPDATE customers SET cvr_number = %s WHERE id = %s",
                (cvr_clean, customer['id'])
            )
            
            print(f"  ✓ {customer['name']:<50} CVR: {cvr_clean}")
            updated += 1
        else:
            skipped += 1
    
    # Summary
    print(f"\n{'='*60}")
    print(f"✅ Opdatering færdig!")
    print(f"   Opdateret: {updated}")
    print(f"   Ikke fundet i vTiger: {skipped}")
    print(f"{'='*60}\n")


if __name__ == "__main__":
    asyncio.run(sync_cvr_numbers())