import psycopg2
import subprocess

# establishing the connection
conn = psycopg2.connect(
    database="postgres", user='license_user', password='license_user_password', host='127.0.0.1', port='5432'
)
conn.autocommit = True

# Creating a cursor object using the cursor() method
cursor = conn.cursor()

# Preparing query to create a database
sql = '''DROP DATABASE license;'''
# Creating a database
try:
    cursor.execute(sql)
    print("Database dropped successfully ->")
except psycopg2.ProgrammingError:
    print("Database license does not exists")
sql = '''CREATE database license;'''
cursor.execute(sql)
print("-> Database created successfully")
sql = '''grant all privileges on database license to license_user;'''
cursor.execute(sql)
print("Database user license_user has all rights to database license")
# Closing the connection
conn.close()

subprocess.run(['python3', 'manage.py', 'makemigrations'])
subprocess.run(['python3', 'manage.py', 'migrate'])