"""init

Revision ID: ff2f2e871dfc
Revises: 
Create Date: 2022-02-20 16:56:13.258209

"""
from alembic import op
import sqlalchemy as sa
from sqlalchemy import engine_from_config
from sqlalchemy.engine import reflection



# revision identifiers, used by Alembic.
revision = 'ff2f2e871dfc'
down_revision = None
branch_labels = None
depends_on = None


def upgrade():
    # ### commands auto generated by Alembic - please adjust! ###

    # init sate, migrate from non versioned db schema
    # by checking if tables exist
    
    config = op.get_context().config
    engine = engine_from_config(
        config.get_section(config.config_ini_section), prefix="sqlalchemy."
    )
    inspector = reflection.Inspector.from_engine(engine)
    tables = inspector.get_table_names()

    if 'user' not in tables:
        op.create_table('user',
        sa.Column('id', sa.String(length=36), nullable=False),
        sa.Column('username', sa.String(), nullable=False),
        sa.Column('alternative_email', sa.String(), nullable=True),
        sa.Column('created_at', sa.DateTime(), nullable=False),
        sa.Column('modified_at', sa.DateTime(), nullable=False),
        sa.Column('last_login', sa.DateTime(), nullable=True),
        sa.PrimaryKeyConstraint('id'),
        sa.UniqueConstraint('username')
        )
    if 'user_sign_up' not in tables:
        op.create_table('user_sign_up',
        sa.Column('id', sa.Integer(), nullable=False),
        sa.Column('username', sa.String(), nullable=False),
        sa.Column('password', sa.String(), nullable=False),
        sa.Column('alternative_email', sa.String(), nullable=True),
        sa.Column('created_at', sa.DateTime(), nullable=False),
        sa.PrimaryKeyConstraint('id')
        )
    if 'totp' not in tables:
        op.create_table('totp',
        sa.Column('id', sa.Integer(), nullable=False),
        sa.Column('secret', sa.String(), nullable=False),
        sa.Column('name', sa.String(), nullable=False),
        sa.Column('created_at', sa.DateTime(), nullable=False),
        sa.Column('user_id', sa.String(length=36), nullable=False),
        sa.ForeignKeyConstraint(['user_id'], ['user.id'], ),
        sa.PrimaryKeyConstraint('id')
        )
    # ### end Alembic commands ###


def downgrade():
    pass
    # ### commands auto generated by Alembic - please adjust! ###
    #op.drop_table('totp')
    #op.drop_table('user_sign_up')
    #op.drop_table('user')
    # ### end Alembic commands ###