"""persist ocr preview results for admin explorer

Revision ID: 202605190001
Revises: 202605170001
Create Date: 2026-05-19 00:00:00.000000
"""

from collections.abc import Sequence

import sqlalchemy as sa
from alembic import op

revision: str = "202605190001"
down_revision: str | None = "202605170001"
branch_labels: str | Sequence[str] | None = None
depends_on: str | Sequence[str] | None = None


def upgrade() -> None:
    op.create_table(
        "ocr_results",
        sa.Column("id", sa.Integer(), nullable=False),
        sa.Column("user_id", sa.Integer(), nullable=True),
        sa.Column("vehicle_id", sa.Integer(), nullable=True),
        sa.Column("scope", sa.String(length=80), nullable=False),
        sa.Column("filename", sa.String(length=255), nullable=True),
        sa.Column("content_type", sa.String(length=120), nullable=True),
        sa.Column("status", sa.String(length=24), server_default="preview", nullable=False),
        sa.Column("provider", sa.String(length=80), nullable=True),
        sa.Column("confidence", sa.Numeric(5, 4), nullable=True),
        sa.Column("recognized_text", sa.Text(), nullable=True),
        sa.Column("candidates_json", sa.JSON(), nullable=True),
        sa.Column("error", sa.Text(), nullable=True),
        sa.Column("created_at", sa.DateTime(timezone=True), server_default=sa.func.now(), nullable=False),
        sa.ForeignKeyConstraint(["user_id"], ["users.id"], ondelete="SET NULL"),
        sa.ForeignKeyConstraint(["vehicle_id"], ["cars.id"], ondelete="SET NULL"),
        sa.PrimaryKeyConstraint("id"),
    )
    op.create_index("ix_ocr_results_created_at", "ocr_results", ["created_at"])
    op.create_index("ix_ocr_results_scope", "ocr_results", ["scope"])
    op.create_index("ix_ocr_results_status", "ocr_results", ["status"])
    op.create_index("ix_ocr_results_user_id", "ocr_results", ["user_id"])
    op.create_index("ix_ocr_results_vehicle_id", "ocr_results", ["vehicle_id"])


def downgrade() -> None:
    op.drop_index("ix_ocr_results_vehicle_id", table_name="ocr_results")
    op.drop_index("ix_ocr_results_user_id", table_name="ocr_results")
    op.drop_index("ix_ocr_results_status", table_name="ocr_results")
    op.drop_index("ix_ocr_results_scope", table_name="ocr_results")
    op.drop_index("ix_ocr_results_created_at", table_name="ocr_results")
    op.drop_table("ocr_results")