from logging.config import fileConfig

from sqlalchemy import create_engine
from sqlalchemy import pool
from alembic import context
from sqlmodel import SQLModel

from etl.models.topLevel import *
from etl.models.preSiteNoteTypes import *
from etl.models.conditionReport import *
from etl.fileReader.reportType import ReportType

import os

# this is the Alembic Config object, which provides
# access to the values within the .ini file in use.
# Load DB URL from env var
db_url = os.getenv("DATABASE_URL")
if not db_url:
    raise RuntimeError("Please set DATABASE_URL")

if not db_url:
    raise RuntimeError("Please specify database url via DATABASE_URL in env variable")

import logging
logging.basicConfig(level=logging.INFO)

config = context.config
target_metadata = SQLModel.metadata

def run_migrations_offline() -> None:
    context.configure(
        url=db_url,
        target_metadata=target_metadata,
        literal_binds=True,
        dialect_opts={"paramstyle": "named"},
        compare_type=True,
        compare_server_default=True,
    )
    with context.begin_transaction():
        context.run_migrations()



def run_migrations_online() -> None:
    engine = create_engine(db_url, poolclass=pool.NullPool)
    with engine.connect() as connection:
        context.configure(
            connection=connection,
            target_metadata=target_metadata,
            compare_type=True,
            compare_server_default=True,
        )
        with context.begin_transaction():
            context.run_migrations()


if context.is_offline_mode():
    run_migrations_offline()
else:
    run_migrations_online()