"""
Seed script to create the PILOT2025 coupon for the pilot customer program.
This coupon provides 3 months (90 days) free trial extension for the first 20 customers.
"""
import sys
import os
from datetime import datetime, timedelta
import uuid

# Add project root to path
sys.path.insert(0, os.path.abspath(os.path.join(os.path.dirname(__file__), '../../..')))

from sqlalchemy.orm import Session
from app.models.coupon import CouponModel
from shared.database import get_db


def seed_pilot_coupon(db: Session):
    """Create or update the PILOT2025 coupon"""

    coupon_code = "PILOT2025"

    # Check if coupon already exists
    existing_coupon = db.query(CouponModel).filter(
        CouponModel.code == coupon_code
    ).first()

    if existing_coupon:
        print(f"✓ Coupon {coupon_code} already exists")
        print(f"  Current redemptions: {existing_coupon.current_redemptions}/{existing_coupon.max_redemptions}")
        print(f"  Active: {existing_coupon.active}")
        print(f"  Valid from: {existing_coupon.valid_from}")
        print(f"  Valid until: {existing_coupon.valid_until}")
        return existing_coupon

    # Create new coupon
    now = datetime.utcnow()
    valid_until = now + timedelta(days=180)  # Valid for 6 months

    coupon = CouponModel(
        id=uuid.uuid4(),
        code=coupon_code,
        discount_type="trial_extension",
        discount_value=90,  # 90 days = 3 months
        max_redemptions=20,  # First 20 pilot customers
        current_redemptions=0,
        valid_from=now,
        valid_until=valid_until,
        active=True,
        created_at=now,
        extra_data={
            "program": "pilot_launch_2025",
            "description": "Programa piloto - 3 meses gratis para los primeros 20 clientes",
            "terms": "Válido para nuevos registros únicamente. Un cupón por cliente."
        }
    )

    db.add(coupon)
    db.commit()
    db.refresh(coupon)

    print(f"✓ Successfully created coupon: {coupon_code}")
    print(f"  Type: Trial Extension")
    print(f"  Value: 90 days (3 months)")
    print(f"  Max redemptions: 20")
    print(f"  Valid from: {coupon.valid_from}")
    print(f"  Valid until: {coupon.valid_until}")
    print(f"  ID: {coupon.id}")

    return coupon


def main():
    """Main execution function"""
    print("=" * 60)
    print("Seeding PILOT2025 Coupon for Pilot Customer Program")
    print("=" * 60)
    print()

    try:
        # Get database session
        db = next(get_db())

        # Seed the coupon
        seed_pilot_coupon(db)

        print()
        print("=" * 60)
        print("✓ Coupon seeding completed successfully!")
        print("=" * 60)

    except Exception as e:
        print(f"✗ Error seeding coupon: {e}")
        import traceback
        traceback.print_exc()
        sys.exit(1)
    finally:
        db.close()


if __name__ == "__main__":
    main()