"""Add sync_operations table

Revision ID: 211ab850ef3d
Revises: 9e7a3cb85175
Create Date: 2025-09-10 20:11:13.534829

"""

from typing import Sequence, Union

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


# revision identifiers, used by Alembic.
revision: str = "211ab850ef3d"
down_revision: Union[str, None] = "45957f0a9849"
branch_labels: Union[str, Sequence[str], None] = None
depends_on: Union[str, Sequence[str], None] = None


def upgrade() -> None:
    # ### commands auto generated by Alembic - please adjust! ###

    # Check if table already exists (it might be created by Base.metadata.create_all() in initial migration)
    connection = op.get_bind()
    inspector = sa.inspect(connection)

    if op.get_context().dialect.name == "postgresql":
        syncstatus_enum = postgresql.ENUM(
            "STARTED", "IN_PROGRESS", "COMPLETED", "FAILED", "CANCELLED", name="syncstatus"
        )
        syncstatus_enum.create(op.get_bind(), checkfirst=True)

    if "sync_operations" not in inspector.get_table_names():
        if op.get_context().dialect.name == "postgresql":
            syncstatus = postgresql.ENUM(
                "STARTED",
                "IN_PROGRESS",
                "COMPLETED",
                "FAILED",
                "CANCELLED",
                name="syncstatus",
                create_type=False,
            )
        else:
            syncstatus = sa.Enum(
                "STARTED",
                "IN_PROGRESS",
                "COMPLETED",
                "FAILED",
                "CANCELLED",
                name="syncstatus",
                create_type=False,
            )

        # Table doesn't exist, create it normally
        op.create_table(
            "sync_operations",
            sa.Column("id", sa.UUID(), nullable=False),
            sa.Column("run_id", sa.Text(), nullable=True),
            sa.Column(
                "status",
                syncstatus,
                nullable=True,
            ),
            sa.Column("progress_percentage", sa.Integer(), nullable=True),
            sa.Column("dataset_ids", sa.JSON(), nullable=True),
            sa.Column("dataset_names", sa.JSON(), nullable=True),
            sa.Column("user_id", sa.UUID(), nullable=True),
            sa.Column("created_at", sa.DateTime(timezone=True), nullable=True),
            sa.Column("started_at", sa.DateTime(timezone=True), nullable=True),
            sa.Column("completed_at", sa.DateTime(timezone=True), nullable=True),
            sa.Column("total_records_to_sync", sa.Integer(), nullable=True),
            sa.Column("total_records_to_download", sa.Integer(), nullable=True),
            sa.Column("total_records_to_upload", sa.Integer(), nullable=True),
            sa.Column("records_downloaded", sa.Integer(), nullable=True),
            sa.Column("records_uploaded", sa.Integer(), nullable=True),
            sa.Column("bytes_downloaded", sa.Integer(), nullable=True),
            sa.Column("bytes_uploaded", sa.Integer(), nullable=True),
            sa.Column("dataset_sync_hashes", sa.JSON(), nullable=True),
            sa.Column("error_message", sa.Text(), nullable=True),
            sa.Column("retry_count", sa.Integer(), nullable=True),
            sa.PrimaryKeyConstraint("id"),
        )
        op.create_index(
            op.f("ix_sync_operations_run_id"), "sync_operations", ["run_id"], unique=True
        )
        op.create_index(
            op.f("ix_sync_operations_user_id"), "sync_operations", ["user_id"], unique=False
        )
    else:
        # Table already exists, but we might need to add missing columns or indexes
        # For now, just log that the table already exists
        print("sync_operations table already exists, skipping creation")

    # ### end Alembic commands ###


def downgrade() -> None:
    # ### commands auto generated by Alembic - please adjust! ###

    # Only drop if table exists (might have been created by Base.metadata.create_all())
    connection = op.get_bind()
    inspector = sa.inspect(connection)

    if "sync_operations" in inspector.get_table_names():
        op.drop_index(op.f("ix_sync_operations_user_id"), table_name="sync_operations")
        op.drop_index(op.f("ix_sync_operations_run_id"), table_name="sync_operations")
        op.drop_table("sync_operations")

        # Drop the enum type that was created (only if no other tables are using it)
        sa.Enum(name="syncstatus").drop(op.get_bind(), checkfirst=True)
    else:
        print("sync_operations table doesn't exist, skipping downgrade")

    # ### end Alembic commands ###
