"""empty message

Revision ID: 0003_add_service_history
Revises: 0002_add_content_char_count
Create Date: 2016-04-19 13:01:54.519821

"""

# revision identifiers, used by Alembic.
revision = "0003_add_service_history"
down_revision = "0002_add_content_char_count"

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


def upgrade():
    ### commands auto generated by Alembic - please adjust! ###
    op.create_table(
        "services_history",
        sa.Column("id", postgresql.UUID(as_uuid=True), nullable=False),
        sa.Column("name", sa.String(length=255), nullable=False),
        sa.Column("created_at", sa.DateTime(), nullable=False),
        sa.Column("updated_at", sa.DateTime(), nullable=True),
        sa.Column("active", sa.Boolean(), nullable=False),
        sa.Column("message_limit", sa.BigInteger(), nullable=False),
        sa.Column("restricted", sa.Boolean(), nullable=False),
        sa.Column("email_from", sa.Text(), nullable=False),
        sa.Column("created_by_id", postgresql.UUID(as_uuid=True), nullable=False),
        sa.Column("version", sa.Integer(), autoincrement=False, nullable=False),
        sa.PrimaryKeyConstraint("id", "version"),
    )
    op.create_index(
        op.f("ix_services_history_created_by_id"),
        "services_history",
        ["created_by_id"],
        unique=False,
    )
    op.add_column(
        "services",
        sa.Column("created_by_id", postgresql.UUID(as_uuid=True), nullable=True),
    )
    op.add_column("services", sa.Column("version", sa.Integer(), nullable=True))
    op.create_index(
        op.f("ix_services_created_by_id"), "services", ["created_by_id"], unique=False
    )
    op.create_foreign_key(
        "fk_services_created_by_id", "services", "users", ["created_by_id"], ["id"]
    )

    op.get_bind()
    op.execute(
        "UPDATE services SET created_by_id = (SELECT user_id FROM user_to_service WHERE services.id = user_to_service.service_id LIMIT 1)"
    )
    op.execute("UPDATE services SET version = 1")
    op.execute("INSERT INTO services_history SELECT * FROM services")

    op.alter_column("services", "created_by_id", nullable=False)
    op.alter_column("services", "version", nullable=False)
    ### end Alembic commands ###


def downgrade():
    ### commands auto generated by Alembic - please adjust! ###
    op.drop_constraint("fk_services_created_by_id", "services", type_="foreignkey")
    op.drop_index(op.f("ix_services_created_by_id"), table_name="services")
    op.drop_column("services", "version")
    op.drop_column("services", "created_by_id")
    op.drop_index(
        op.f("ix_services_history_created_by_id"), table_name="services_history"
    )
    op.drop_table("services_history")
    ### end Alembic commands ###