
# Alembic migration script template

"""empty message

Revision ID: 0d767ad92dd7
Revises: 20251021_add_user_and_magic_link
Create Date: 2025-10-24 23:36:41.985357

"""
from alembic import op
import sqlalchemy as sa

# revision identifiers, used by Alembic.
revision = '0d767ad92dd7'
down_revision = '20251021_add_user_and_magic_link'
branch_labels = None
depends_on = None

def upgrade() -> None:
    op.create_table(
        "product_likes",
        sa.Column(
            "user_id",
            sa.Integer(),
            sa.ForeignKey(
                "users.id",
                ondelete="CASCADE",
            ),
            primary_key=True,
            nullable=False,
        ),
        sa.Column(
            "product_slug",
            sa.String(length=255),
            primary_key=True,
            nullable=False,
        ),
        sa.Column(
            "created_at",
            sa.DateTime(timezone=True),
            nullable=False,
            server_default=sa.func.now(),
        ),
    )

    # If you want an index to quickly fetch "all likes for this user":
    op.create_index(
        "ix_product_likes_user_id",
        "product_likes",
        ["user_id"],
        unique=False,
    )

    # If you want an index to quickly fetch "who liked this product":
    op.create_index(
        "ix_product_likes_product_slug",
        "product_likes",
        ["product_slug"],
        unique=False,
    )


def downgrade() -> None:
    op.drop_index("ix_product_likes_product_slug", table_name="product_likes")
    op.drop_index("ix_product_likes_user_id", table_name="product_likes")
    op.drop_table("product_likes")
