from app import create_app, db
from app.models import db
import sqlalchemy as sa

app = create_app()
with app.app_context():
    # Verificar si la tabla vessel_systems existe
    inspector = sa.inspect(db.engine)
    if not inspector.has_table('vessel_systems'):
        # Crear tabla de sistemas de embarcación
        db.session.execute('''
            CREATE TABLE vessel_systems (
                id INTEGER PRIMARY KEY AUTOINCREMENT,
                vessel_id INTEGER NOT NULL,
                system_type TEXT NOT NULL,
                component_name TEXT NOT NULL,
                manufacturer TEXT,
                model TEXT,
                serial_number TEXT,
                installation_date DATE,
                last_maintenance_date DATE,
                status TEXT DEFAULT 'active',
                notes TEXT,
                FOREIGN KEY (vessel_id) REFERENCES vessels(id)
            )
        ''')
        print("Tabla vessel_systems creada")
    
    if not inspector.has_table('maintenance_logs'):
        # Crear tabla de registros de mantenimiento
        db.session.execute('''
            CREATE TABLE maintenance_logs (
                id INTEGER PRIMARY KEY AUTOINCREMENT,
                system_id INTEGER NOT NULL,
                work_order_id INTEGER,
                maintenance_date DATE NOT NULL,
                maintenance_type TEXT NOT NULL,
                description TEXT,
                cost REAL,
                technician TEXT,
                next_maintenance_date DATE,
                hours_accumulated INTEGER,
                FOREIGN KEY (system_id) REFERENCES vessel_systems(id),
                FOREIGN KEY (work_order_id) REFERENCES work_orders(id)
            )
        ''')
        print("Tabla maintenance_logs creada")
    
    print("Estructura de historial por sistemas agregada")