"""Retire the sketch/doodle WIP title tier — its tags, its review flags, its toggle.

Milestone 430, #4428. The soft tier (#1474) tagged `wip` on any post titled
sketch / doodle / scribble. Measured on the operator's library it was 6,096 of
8,876 wip tags, and its conflict audit filled the Gallery's review strip with
2,086 cards, because most finished art scores >= 0.5 on some content head. A
"sketch" is usually finished work, so the operator retired it (2026-09-25).

Data:

* A soft tag the operator stood behind is kept and relabelled `manual`: one they
  confirmed (tag_positive_confirmation), or one whose review flag they resolved
  while leaving the tag on (the strip's "Keep tag").
* Every other `wip_title_soft` row is deleted.
* Unresolved review flags whose tag is no longer on the image are deleted: the
  question they ask no longer applies. That is the audit's cards, and any older
  orphan the same way.

Then `import_settings.wip_soft_title_tagging_enabled` is dropped. The downgrade
restores the column only; deleted tags are not recreated.

Revision ID: 0112
Revises: 0111
Create Date: 2026-09-25

"""
import sqlalchemy as sa
from alembic import op

revision = "0112"
down_revision = "0111"
branch_labels = None
depends_on = None


def retire_soft_wip_tags(conn) -> None:
    """The data half, on a plain connection, so a test can run it directly."""
    conn.execute(sa.text("""
        UPDATE image_tag it SET source = 'manual'
        WHERE it.source = 'wip_title_soft'
          AND (
            EXISTS (
              SELECT 1 FROM tag_positive_confirmation c
              WHERE c.image_record_id = it.image_record_id AND c.tag_id = it.tag_id
            )
            OR EXISTS (
              SELECT 1 FROM presentation_review pr
              WHERE pr.image_record_id = it.image_record_id AND pr.tag_id = it.tag_id
                AND pr.resolved_at IS NOT NULL
            )
          )
    """))
    conn.execute(sa.text("DELETE FROM image_tag WHERE source = 'wip_title_soft'"))
    conn.execute(sa.text("""
        DELETE FROM presentation_review pr
        WHERE pr.resolved_at IS NULL
          AND NOT EXISTS (
            SELECT 1 FROM image_tag it
            WHERE it.image_record_id = pr.image_record_id AND it.tag_id = pr.tag_id
          )
    """))


def upgrade():
    retire_soft_wip_tags(op.get_bind())
    op.drop_column("import_settings", "wip_soft_title_tagging_enabled")


def downgrade():
    op.add_column(
        "import_settings",
        sa.Column(
            "wip_soft_title_tagging_enabled",
            sa.Boolean(),
            nullable=False,
            server_default=sa.text("false"),
        ),
    )