CREATE TABLE IF NOT EXISTS viewer_accounts (
  scope TEXT NOT NULL, room_id TEXT NOT NULL, uid TEXT NOT NULL, display_name TEXT NOT NULL,
  points INTEGER NOT NULL DEFAULT 0 CHECK(points >= 0), created_at TIMESTAMPTZ NOT NULL DEFAULT now(), updated_at TIMESTAMPTZ NOT NULL DEFAULT now(),
  PRIMARY KEY(scope, room_id, uid)
);
CREATE TABLE IF NOT EXISTS point_ledger (
  id UUID PRIMARY KEY, scope TEXT NOT NULL, room_id TEXT NOT NULL, uid TEXT NOT NULL, delta INTEGER NOT NULL,
  reason TEXT NOT NULL, source_event_id TEXT UNIQUE, metadata JSONB NOT NULL DEFAULT '{}'::jsonb, created_at TIMESTAMPTZ NOT NULL DEFAULT now()
);
CREATE TABLE IF NOT EXISTS wheel_spins (
  id UUID PRIMARY KEY, scope TEXT NOT NULL, room_id TEXT NOT NULL, uid TEXT NOT NULL, category TEXT NOT NULL,
  song_id INTEGER NOT NULL, song_title TEXT NOT NULL, fallback BOOLEAN NOT NULL, cost INTEGER NOT NULL, balance_after INTEGER NOT NULL,
  created_at TIMESTAMPTZ NOT NULL DEFAULT now()
);
CREATE INDEX IF NOT EXISTS viewer_accounts_name_idx ON viewer_accounts(scope, room_id, display_name);
CREATE INDEX IF NOT EXISTS point_ledger_recent_idx ON point_ledger(scope, room_id, created_at DESC);
CREATE TABLE IF NOT EXISTS live_session_outbox (
  id BIGSERIAL PRIMARY KEY,
  streamer_uid BIGINT NOT NULL,
  event_ts_ms BIGINT NOT NULL,
  payload BYTEA NOT NULL,
  retry_count INTEGER NOT NULL DEFAULT 0,
  next_retry_at_ms BIGINT NOT NULL
);
CREATE INDEX IF NOT EXISTS live_session_outbox_due_idx ON live_session_outbox(next_retry_at_ms, id);