"""Add file_signatures table for incremental loading

Revision ID: incremental_file_signatures
Revises: 1d0bb7fede17
Create Date: 2025-01-27 12:00:00.000000

"""

from alembic import op
import sqlalchemy as sa
from sqlalchemy.dialects import postgresql
from uuid import uuid4

# revision identifiers, used by Alembic.
revision = "incremental_file_signatures"
down_revision = "1d0bb7fede17"
branch_labels = None
depends_on = None


def upgrade():
    # ### commands auto generated by Alembic - please adjust! ###
    op.create_table(
        "file_signatures",
        sa.Column("id", sa.UUID(), nullable=False, default=uuid4),
        sa.Column("data_id", sa.UUID(), nullable=True),
        sa.Column("file_path", sa.String(), nullable=True),
        sa.Column("file_size", sa.Integer(), nullable=True),
        sa.Column("content_hash", sa.String(), nullable=True),
        sa.Column("total_blocks", sa.Integer(), nullable=True),
        sa.Column("block_size", sa.Integer(), nullable=True),
        sa.Column("strong_len", sa.Integer(), nullable=True),
        sa.Column("signature_data", sa.LargeBinary(), nullable=True),
        sa.Column("blocks_info", sa.JSON(), nullable=True),
        sa.Column("created_at", sa.DateTime(timezone=True), nullable=True),
        sa.Column("updated_at", sa.DateTime(timezone=True), nullable=True),
        sa.PrimaryKeyConstraint("id"),
    )
    op.create_index(
        op.f("ix_file_signatures_data_id"), "file_signatures", ["data_id"], unique=False
    )
    op.create_index(
        op.f("ix_file_signatures_content_hash"), "file_signatures", ["content_hash"], unique=False
    )
    # ### end Alembic commands ###


def downgrade():
    # ### commands auto generated by Alembic - please adjust! ###
    op.drop_index(op.f("ix_file_signatures_content_hash"), table_name="file_signatures")
    op.drop_index(op.f("ix_file_signatures_data_id"), table_name="file_signatures")
    op.drop_table("file_signatures")
    # ### end Alembic commands ###