"""Add MIDI bridge, token and mapping tables."""

from __future__ import annotations

import sqlalchemy as sa
from alembic import op

revision = "20260724_0004"
down_revision = "20260722_0003"
branch_labels = None
depends_on = None


def upgrade() -> None:
    bind = op.get_bind()
    inspector = sa.inspect(bind)
    tables = set(inspector.get_table_names())

    if "midi_bridges" not in tables:
        op.create_table(
            "midi_bridges",
            sa.Column("id", sa.Integer(), primary_key=True),
            sa.Column("bridge_id", sa.String(length=160), nullable=False),
            sa.Column("device_name", sa.String(length=255), nullable=True),
            sa.Column("ip_address", sa.String(length=64), nullable=True),
            sa.Column("protocol_version", sa.Integer(), nullable=False, server_default="1"),
            sa.Column("online", sa.Boolean(), nullable=False, server_default=sa.false()),
            sa.Column("last_heartbeat_at", sa.DateTime(timezone=True), nullable=True),
            sa.Column("last_event_at", sa.DateTime(timezone=True), nullable=True),
            sa.Column("last_error", sa.Text(), nullable=True),
            sa.Column("last_event", sa.JSON(), nullable=False, server_default=sa.text("'{}'")),
            sa.Column("created_at", sa.DateTime(timezone=True), nullable=False),
            sa.Column("updated_at", sa.DateTime(timezone=True), nullable=False),
        )
        op.create_index("ix_midi_bridges_bridge_id", "midi_bridges", ["bridge_id"], unique=True)

    if "midi_bridge_tokens" not in tables:
        op.create_table(
            "midi_bridge_tokens",
            sa.Column("id", sa.Integer(), primary_key=True),
            sa.Column("label", sa.String(length=120), nullable=False),
            sa.Column("token_hash", sa.String(length=64), nullable=False),
            sa.Column("bridge_id", sa.String(length=160), nullable=True),
            sa.Column("scopes", sa.JSON(), nullable=False, server_default=sa.text("'[]'")),
            sa.Column("last_used_at", sa.DateTime(timezone=True), nullable=True),
            sa.Column("revoked_at", sa.DateTime(timezone=True), nullable=True),
            sa.Column("created_at", sa.DateTime(timezone=True), nullable=False),
        )
        op.create_index("ix_midi_bridge_tokens_token_hash", "midi_bridge_tokens", ["token_hash"], unique=True)

    if "midi_mappings" not in tables:
        op.create_table(
            "midi_mappings",
            sa.Column("id", sa.Integer(), primary_key=True),
            sa.Column("name", sa.String(length=160), nullable=False),
            sa.Column("enabled", sa.Boolean(), nullable=False, server_default=sa.true()),
            sa.Column("bridge_id", sa.String(length=160), nullable=True),
            sa.Column("device_name", sa.String(length=255), nullable=True),
            sa.Column("message_type", sa.String(length=40), nullable=False),
            sa.Column("channel", sa.Integer(), nullable=True),
            sa.Column("number", sa.Integer(), nullable=False),
            sa.Column("action", sa.String(length=60), nullable=False),
            sa.Column("target_type", sa.String(length=40), nullable=False),
            sa.Column("target_id", sa.String(length=160), nullable=True),
            sa.Column("mode", sa.String(length=40), nullable=False, server_default="trigger"),
            sa.Column("minimum_value", sa.Integer(), nullable=False, server_default="0"),
            sa.Column("maximum_value", sa.Integer(), nullable=False, server_default="127"),
            sa.Column("created_at", sa.DateTime(timezone=True), nullable=False),
            sa.Column("updated_at", sa.DateTime(timezone=True), nullable=False),
        )


def downgrade() -> None:
    bind = op.get_bind()
    inspector = sa.inspect(bind)
    tables = set(inspector.get_table_names())

    if "midi_mappings" in tables:
        op.drop_table("midi_mappings")

    if "midi_bridge_tokens" in tables:
        op.drop_index("ix_midi_bridge_tokens_token_hash", table_name="midi_bridge_tokens")
        op.drop_table("midi_bridge_tokens")

    if "midi_bridges" in tables:
        op.drop_index("ix_midi_bridges_bridge_id", table_name="midi_bridges")
        op.drop_table("midi_bridges")