"""When a user last took a video back to "new"

Revision ID: 0114_video_unmarks
Revises: 0113_takeout_items
Create Date: 2026-10-23

Un-marking or resetting a video leaves no `video_states` row, so this is what tells an import of the
user's YouTube history a video they un-marked here from one never touched.
"""

import sqlalchemy as sa
from alembic import op

revision: str = "0114_video_unmarks"
down_revision: str | None = "0113_takeout_items"
branch_labels: str | None = None
depends_on: str | None = None


def upgrade() -> None:
    op.create_table(
        "video_unmarks",
        sa.Column("id", sa.Integer(), primary_key=True),
        sa.Column(
            "user_id",
            sa.Integer(),
            sa.ForeignKey("users.id", ondelete="CASCADE"),
            nullable=False,
        ),
        sa.Column(
            "video_id",
            sa.String(16),
            sa.ForeignKey("videos.id", ondelete="CASCADE"),
            nullable=False,
        ),
        sa.Column("at", sa.DateTime(timezone=True), nullable=False),
        sa.UniqueConstraint("user_id", "video_id", name="uq_video_unmark"),
    )
    op.create_index("ix_video_unmarks_video_id", "video_unmarks", ["video_id"])


def downgrade() -> None:
    op.drop_index("ix_video_unmarks_video_id", table_name="video_unmarks")
    op.drop_table("video_unmarks")