"""add user contacts table

Revision ID: 0017_user_contacts
Revises: 0016_chat_invites
Create Date: 2026-03-08 23:10:00.000000
"""

from typing import Sequence, Union

from alembic import op
import sqlalchemy as sa


revision: str = "0017_user_contacts"
down_revision: Union[str, Sequence[str], None] = "0016_chat_invites"
branch_labels: Union[str, Sequence[str], None] = None
depends_on: Union[str, Sequence[str], None] = None


def upgrade() -> None:
    op.create_table(
        "user_contacts",
        sa.Column("id", sa.Integer(), nullable=False),
        sa.Column("user_id", sa.Integer(), nullable=False),
        sa.Column("contact_user_id", sa.Integer(), nullable=False),
        sa.Column("created_at", sa.DateTime(timezone=True), server_default=sa.text("now()"), nullable=False),
        sa.ForeignKeyConstraint(["user_id"], ["users.id"], name=op.f("fk_user_contacts_user_id_users"), ondelete="CASCADE"),
        sa.ForeignKeyConstraint(["contact_user_id"], ["users.id"], name=op.f("fk_user_contacts_contact_user_id_users"), ondelete="CASCADE"),
        sa.PrimaryKeyConstraint("id", name=op.f("pk_user_contacts")),
        sa.UniqueConstraint("user_id", "contact_user_id", name="uq_user_contacts_pair"),
    )
    op.create_index(op.f("ix_user_contacts_id"), "user_contacts", ["id"], unique=False)
    op.create_index(op.f("ix_user_contacts_user_id"), "user_contacts", ["user_id"], unique=False)
    op.create_index(op.f("ix_user_contacts_contact_user_id"), "user_contacts", ["contact_user_id"], unique=False)


def downgrade() -> None:
    op.drop_index(op.f("ix_user_contacts_contact_user_id"), table_name="user_contacts")
    op.drop_index(op.f("ix_user_contacts_user_id"), table_name="user_contacts")
    op.drop_index(op.f("ix_user_contacts_id"), table_name="user_contacts")
    op.drop_table("user_contacts")