# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements.  See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership.  The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License.  You may obtain a copy of the License at
#
#   http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied.  See the License for the
# specific language governing permissions and limitations
# under the License.
"""refractor_alerting

Revision ID: 2e5a0ee25ed4
Revises: f80a3b88324b
Create Date: 2020-08-31 20:30:30.781478

"""

# revision identifiers, used by Alembic.
revision = "2e5a0ee25ed4"
down_revision = "f80a3b88324b"

import sqlalchemy as sa
from alembic import op
from sqlalchemy.dialects import mysql


def upgrade():
    # ### commands auto generated by Alembic - please adjust! ###
    op.create_table(
        "alert_validators",
        sa.Column("created_on", sa.DateTime(), nullable=True),
        sa.Column("changed_on", sa.DateTime(), nullable=True),
        sa.Column("id", sa.Integer(), nullable=False),
        sa.Column("validator_type", sa.String(length=100), nullable=False),
        sa.Column("config", sa.Text(), nullable=True),
        sa.Column("created_by_fk", sa.Integer(), nullable=True),
        sa.Column("changed_by_fk", sa.Integer(), nullable=True),
        sa.Column("alert_id", sa.Integer(), nullable=False),
        sa.ForeignKeyConstraint(["alert_id"], ["alerts.id"],),
        sa.ForeignKeyConstraint(["changed_by_fk"], ["ab_user.id"],),
        sa.ForeignKeyConstraint(["created_by_fk"], ["ab_user.id"],),
        sa.PrimaryKeyConstraint("id"),
    )
    op.create_table(
        "sql_observers",
        sa.Column("created_on", sa.DateTime(), nullable=True),
        sa.Column("changed_on", sa.DateTime(), nullable=True),
        sa.Column("id", sa.Integer(), nullable=False),
        sa.Column("sql", sa.Text(), nullable=False),
        sa.Column("created_by_fk", sa.Integer(), nullable=True),
        sa.Column("changed_by_fk", sa.Integer(), nullable=True),
        sa.Column("alert_id", sa.Integer(), nullable=False),
        sa.Column("database_id", sa.Integer(), nullable=False),
        sa.ForeignKeyConstraint(["alert_id"], ["alerts.id"],),
        sa.ForeignKeyConstraint(["changed_by_fk"], ["ab_user.id"],),
        sa.ForeignKeyConstraint(["created_by_fk"], ["ab_user.id"],),
        sa.ForeignKeyConstraint(["database_id"], ["dbs.id"],),
        sa.PrimaryKeyConstraint("id"),
    )
    op.create_table(
        "sql_observations",
        sa.Column("id", sa.Integer(), nullable=False),
        sa.Column("dttm", sa.DateTime(), nullable=True),
        sa.Column("observer_id", sa.Integer(), nullable=False),
        sa.Column("alert_id", sa.Integer(), nullable=True),
        sa.Column("value", sa.Float(), nullable=True),
        sa.Column("error_msg", sa.String(length=500), nullable=True),
        sa.ForeignKeyConstraint(["alert_id"], ["alerts.id"],),
        sa.ForeignKeyConstraint(["observer_id"], ["sql_observers.id"],),
        sa.PrimaryKeyConstraint("id"),
    )
    op.create_index(
        op.f("ix_sql_observations_dttm"), "sql_observations", ["dttm"], unique=False
    )

    with op.batch_alter_table("alerts") as batch_op:
        batch_op.add_column(sa.Column("changed_by_fk", sa.Integer(), nullable=True))
        batch_op.add_column(sa.Column("changed_on", sa.DateTime(), nullable=True))
        batch_op.add_column(sa.Column("created_by_fk", sa.Integer(), nullable=True))
        batch_op.add_column(sa.Column("created_on", sa.DateTime(), nullable=True))
        batch_op.alter_column(
            "crontab", existing_type=mysql.VARCHAR(length=50), nullable=False
        )
        batch_op.create_foreign_key(
            "alerts_ibfk_3", "ab_user", ["changed_by_fk"], ["id"]
        )
        batch_op.create_foreign_key(
            "alerts_ibfk_4", "ab_user", ["created_by_fk"], ["id"]
        )
        batch_op.drop_column("sql")
        batch_op.drop_column("database_id")
    # ### end Alembic commands ###


def downgrade():
    # ### commands auto generated by Alembic - please adjust! ###
    with op.batch_alter_table("alerts") as batch_op:
        batch_op.add_column(
            sa.Column(
                "database_id", mysql.INTEGER(), autoincrement=False, nullable=False
            )
        )
        batch_op.add_column(sa.Column("sql", mysql.TEXT(), nullable=True))
        batch_op.drop_constraint("alerts_ibfk_3", type_="foreignkey")
        batch_op.drop_constraint("alerts_ibfk_4", type_="foreignkey")
        batch_op.alter_column(
            "crontab", existing_type=mysql.VARCHAR(length=50), nullable=True
        )
        batch_op.drop_column("created_on")
        batch_op.drop_column("created_by_fk")
        batch_op.drop_column("changed_on")
        batch_op.drop_column("changed_by_fk")

    op.drop_index(op.f("ix_sql_observations_dttm"), table_name="sql_observations")
    op.drop_table("sql_observations")
    op.drop_table("sql_observers")
    op.drop_table("alert_validators")
    # ### end Alembic commands ###
