# Assuming db and models (Course) are initialized/imported
from .models import db, Course

def seed_courses():
    course_data = [
            {'id': 1, 'folder': 'grnvs25', 'name': 'GRNVS Tutorium SS 25'},
            {'id': 2, 'folder': 'itsec2526', 'name': 'IT-Sec Tutorium WS 25/26'},
    ]

    for data in course_data:
        # Check if the course already exists by ID
        existing_course = db.session.get(Course, data['id'])
        
        if existing_course is None:
            # Create a new Course object if it doesn't exist
            new_course = Course(name=data['name'], folder=data['folder'])
            # Since you're specifying the ID, you need to set it manually 
            # if it's not an autoincrement sequence (SQLite handles this fine)
            new_course.id = data['id'] 
            db.session.add(new_course)
        
        # If it exists, you might want to update the name:
        elif existing_course.name != data['name']:
             existing_course.name = data['name']

    db.session.commit()