"""task management completion
Revision ID: 0002
Revises: 0001
"""

import sqlalchemy as sa
from alembic import op

revision = "0002"
down_revision = "0001"
branch_labels = None
depends_on = None


def upgrade() -> None:
    op.add_column("folders", sa.Column("deleted_at", sa.DateTime(timezone=True), nullable=True))
    op.add_column("task_lists", sa.Column("deleted_at", sa.DateTime(timezone=True), nullable=True))
    op.create_table(
        "tags",
        sa.Column("id", sa.Uuid(), primary_key=True),
        sa.Column("user_id", sa.Uuid(), nullable=False),
        sa.Column("name", sa.String(80), nullable=False),
        sa.Column("color", sa.String(32), nullable=False),
        sa.Column("created_at", sa.DateTime(timezone=True), nullable=False),
        sa.ForeignKeyConstraint(["user_id"], ["users.id"], ondelete="CASCADE"),
        sa.UniqueConstraint("user_id", "name", name="uq_tags_user_id_name"),
    )
    op.create_index("ix_tags_user_id", "tags", ["user_id"])
    op.create_table(
        "task_tags",
        sa.Column("task_id", sa.Uuid(), nullable=False),
        sa.Column("tag_id", sa.Uuid(), nullable=False),
        sa.ForeignKeyConstraint(["task_id"], ["tasks.id"], ondelete="CASCADE"),
        sa.ForeignKeyConstraint(["tag_id"], ["tags.id"], ondelete="CASCADE"),
        sa.PrimaryKeyConstraint("task_id", "tag_id"),
    )
    op.create_index("ix_tasks_cursor", "tasks", ["user_id", "created_at", "id"])
    op.create_index("ix_tasks_deleted_at", "tasks", ["deleted_at"])


def downgrade() -> None:
    op.drop_index("ix_tasks_deleted_at", table_name="tasks")
    op.drop_index("ix_tasks_cursor", table_name="tasks")
    op.drop_table("task_tags")
    op.drop_index("ix_tags_user_id", table_name="tags")
    op.drop_table("tags")
    op.drop_column("task_lists", "deleted_at")
    op.drop_column("folders", "deleted_at")