"""empty message

Revision ID: 0072_add_dvla_orgs
Revises: 0071_add_job_error_state
Create Date: 2017-04-19 15:25:45.155886

"""

# revision identifiers, used by Alembic.
revision = "0072_add_dvla_orgs"
down_revision = "0071_add_job_error_state"

import sqlalchemy as sa
from alembic import op


def upgrade():
    ### commands auto generated by Alembic - please adjust! ###
    op.create_table(
        "dvla_organisation",
        sa.Column("id", sa.String(), nullable=False),
        sa.Column("name", sa.String(length=255), nullable=True),
        sa.PrimaryKeyConstraint("id"),
    )

    # insert initial values - HMG and Land Reg
    op.execute(
        """
        INSERT INTO dvla_organisation VALUES
        ('001', 'HM Government'),
        ('500', 'Land Registry')
    """
    )

    op.add_column(
        "services",
        sa.Column(
            "dvla_organisation_id", sa.String(), nullable=True, server_default="001"
        ),
    )
    op.add_column(
        "services_history",
        sa.Column(
            "dvla_organisation_id", sa.String(), nullable=True, server_default="001"
        ),
    )

    # set everything to be HMG for now
    op.execute("UPDATE services SET dvla_organisation_id = '001'")
    op.execute("UPDATE services_history SET dvla_organisation_id = '001'")

    op.alter_column("services", "dvla_organisation_id", nullable=False)
    op.alter_column("services_history", "dvla_organisation_id", nullable=False)

    op.create_index(
        op.f("ix_services_dvla_organisation_id"),
        "services",
        ["dvla_organisation_id"],
        unique=False,
    )
    op.create_index(
        op.f("ix_services_history_dvla_organisation_id"),
        "services_history",
        ["dvla_organisation_id"],
        unique=False,
    )

    op.create_foreign_key(
        None, "services", "dvla_organisation", ["dvla_organisation_id"], ["id"]
    )


def downgrade():
    op.drop_column("services_history", "dvla_organisation_id")
    op.drop_column("services", "dvla_organisation_id")
    op.drop_table("dvla_organisation")