"""Initial schema: users and deposits."""

from typing import Sequence, Union

import sqlalchemy as sa
from alembic import op

revision: str = "0001_initial"
down_revision: Union[str, None] = None
branch_labels: Union[str, Sequence[str], None] = None
depends_on: Union[str, Sequence[str], None] = None


def upgrade() -> None:
    op.create_table(
        "users",
        sa.Column("id", sa.Integer(), autoincrement=True, nullable=False),
        sa.Column("telegram_id", sa.BigInteger(), nullable=True),
        sa.Column("username", sa.String(length=255), nullable=True),
        sa.Column("first_name", sa.String(length=255), nullable=True),
        sa.Column("balance", sa.Numeric(18, 2), nullable=False),
        sa.Column("agreement_accepted_at", sa.DateTime(timezone=True), nullable=True),
        sa.Column("created_at", sa.DateTime(timezone=True), server_default=sa.text("CURRENT_TIMESTAMP"), nullable=False),
        sa.Column("updated_at", sa.DateTime(timezone=True), server_default=sa.text("CURRENT_TIMESTAMP"), nullable=False),
        sa.PrimaryKeyConstraint("id"),
    )
    op.create_index("ix_users_telegram_id", "users", ["telegram_id"], unique=True)

    op.create_table(
        "deposits",
        sa.Column("id", sa.Integer(), autoincrement=True, nullable=False),
        sa.Column("user_id", sa.Integer(), nullable=False),
        sa.Column("amount", sa.Numeric(18, 2), nullable=False),
        sa.Column("created_at", sa.DateTime(timezone=True), server_default=sa.text("CURRENT_TIMESTAMP"), nullable=False),
        sa.ForeignKeyConstraint(["user_id"], ["users.id"], ondelete="CASCADE"),
        sa.PrimaryKeyConstraint("id"),
    )
    op.create_index("ix_deposits_user_id", "deposits", ["user_id"], unique=False)


def downgrade() -> None:
    op.drop_index("ix_deposits_user_id", table_name="deposits")
    op.drop_table("deposits")
    op.drop_index("ix_users_telegram_id", table_name="users")
    op.drop_table("users")