-- ============================================================
-- Migration 007: Estado de triagem automatica do Omnino
-- Tabela: whatsapp_chat_atribuicoes
-- ============================================================

ALTER TABLE whatsapp_chat_atribuicoes
  ADD COLUMN IF NOT EXISTS routing_attempts INTEGER NOT NULL DEFAULT 0,
  ADD COLUMN IF NOT EXISTS last_routed_message_id VARCHAR(255),
  ADD COLUMN IF NOT EXISTS last_bot_sent_at TIMESTAMP WITH TIME ZONE;

CREATE INDEX IF NOT EXISTS idx_whatsapp_atribuicoes_triage
  ON whatsapp_chat_atribuicoes (status, routing_attempts);