import sys
from pathlib import Path
sys.path.insert(0, str(Path(__file__).resolve().parent.parent))

from app import create_app
from models import db, Course
from utils import _migrate_col_type, is_mysql
from db_bootstrap import is_doris

app = create_app()
with app.app_context():
    print('is_mysql', is_mysql(), 'is_doris', is_doris())
    col = Course.__table__.columns['course_code']
    col_type = _migrate_col_type(col)
    sql = f"ALTER TABLE `courses` ADD COLUMN `course_code` {col_type} DEFAULT ''"
    print('SQL:', sql)
    try:
        db.session.execute(db.text(sql))
        db.session.commit()
        print('SUCCESS')
    except Exception as e:
        db.session.rollback()
        print('FAIL:', e)