"""initialize

Revision ID: f3622e20dd86
Revises: 
Create Date: 2019-03-18 14:11:22.386217

"""
from alembic import op
import sqlalchemy as sa


# revision identifiers, used by Alembic.
revision = 'f3622e20dd86'
down_revision = None
branch_labels = None
depends_on = None


def upgrade():
    # ### commands auto generated by Alembic - please adjust! ###
    op.create_table('dataset',
    sa.Column('id', sa.Integer(), nullable=False),
    sa.Column('name', sa.String(length=128), nullable=False),
    sa.Column('created', sa.DateTime(), nullable=False),
    sa.Column('md5sum', sa.String(length=32), nullable=False),
    sa.PrimaryKeyConstraint('id'),
    sa.UniqueConstraint('md5sum'),
    sa.UniqueConstraint('name')
    )
    op.create_table('user',
    sa.Column('id', sa.Integer(), nullable=False),
    sa.Column('username', sa.String(length=80), nullable=False),
    sa.Column('email', sa.String(length=256), nullable=False),
    sa.Column('password_hash', sa.String(length=128), nullable=False),
    sa.Column('last_active', sa.DateTime(), nullable=False),
    sa.Column('max_tasks', sa.Integer(), nullable=False, default=50),
    sa.PrimaryKeyConstraint('id'),
    sa.UniqueConstraint('email'),
    sa.UniqueConstraint('username')
    )
    op.create_table('task',
    sa.Column('id', sa.Integer(), nullable=False),
    sa.Column('done', sa.Boolean(), nullable=False),
    sa.Column('annotated_on', sa.DateTime(), nullable=True),
    sa.Column('annotator_id', sa.Integer(), nullable=True),
    sa.Column('dataset_id', sa.Integer(), nullable=True),
    sa.Column('time_spent', sa.Integer(), nullable=True),
    sa.Column('difficulty', sa.Integer(), nullable=True),
    sa.Column('problem', sa.Text(), nullable=True),
    sa.ForeignKeyConstraint(['annotator_id'], ['user.id'], ),
    sa.ForeignKeyConstraint(['dataset_id'], ['dataset.id'], ),
    sa.PrimaryKeyConstraint('id')
    )
    op.create_table('annotation',
    sa.Column('id', sa.Integer(), nullable=False),
    sa.Column('time_start', sa.Integer(), nullable=True),
    sa.Column('time_end', sa.Integer(), nullable=True),
    sa.Column('task_id', sa.Integer(), nullable=True),
    sa.Column('type', sa.String(50), nullable=True),
    sa.ForeignKeyConstraint(['task_id'], ['task.id'], ),
    sa.PrimaryKeyConstraint('id')
    )
    # ### end Alembic commands ###


def downgrade():
    # ### commands auto generated by Alembic - please adjust! ###
    op.drop_table('annotation')
    op.drop_table('task')
    op.drop_table('user')
    op.drop_table('dataset')
    # ### end Alembic commands ###