"""add push device tokens table

Revision ID: 0027_push_device_tokens
Revises: 0026_deduplicate_saved_chats
Create Date: 2026-03-10 02:10:00.000000
"""

from typing import Sequence, Union

from alembic import op
import sqlalchemy as sa


revision: str = "0027_push_device_tokens"
down_revision: Union[str, Sequence[str], None] = "0026_deduplicate_saved_chats"
branch_labels: Union[str, Sequence[str], None] = None
depends_on: Union[str, Sequence[str], None] = None


def upgrade() -> None:
    op.create_table(
        "push_device_tokens",
        sa.Column("id", sa.Integer(), nullable=False),
        sa.Column("user_id", sa.Integer(), nullable=False),
        sa.Column("platform", sa.String(length=16), nullable=False),
        sa.Column("token", sa.String(length=512), nullable=False),
        sa.Column("device_id", sa.String(length=128), nullable=True),
        sa.Column("app_version", sa.String(length=64), nullable=True),
        sa.Column("created_at", sa.DateTime(timezone=True), server_default=sa.text("now()"), nullable=False),
        sa.Column("updated_at", sa.DateTime(timezone=True), server_default=sa.text("now()"), nullable=False),
        sa.ForeignKeyConstraint(["user_id"], ["users.id"], ondelete="CASCADE"),
        sa.PrimaryKeyConstraint("id"),
        sa.UniqueConstraint("user_id", "platform", "token", name="uq_push_device_tokens_user_platform_token"),
    )
    op.create_index(op.f("ix_push_device_tokens_id"), "push_device_tokens", ["id"], unique=False)
    op.create_index(op.f("ix_push_device_tokens_platform"), "push_device_tokens", ["platform"], unique=False)
    op.create_index(op.f("ix_push_device_tokens_user_id"), "push_device_tokens", ["user_id"], unique=False)


def downgrade() -> None:
    op.drop_index(op.f("ix_push_device_tokens_user_id"), table_name="push_device_tokens")
    op.drop_index(op.f("ix_push_device_tokens_platform"), table_name="push_device_tokens")
    op.drop_index(op.f("ix_push_device_tokens_id"), table_name="push_device_tokens")
    op.drop_table("push_device_tokens")