-- ============================================================
-- Migration 009: Agenda de contatos dos clientes
-- Tabela: customer_contacts
-- ============================================================

CREATE TABLE IF NOT EXISTS customer_contacts (
  chat_id VARCHAR(255) PRIMARY KEY,
  phone VARCHAR(80) NOT NULL,
  name VARCHAR(255),
  company VARCHAR(255),
  note TEXT,
  updated_by_user_id INTEGER REFERENCES usuarios(id) ON DELETE SET NULL,
  created_at TIMESTAMP WITH TIME ZONE NOT NULL DEFAULT CURRENT_TIMESTAMP,
  updated_at TIMESTAMP WITH TIME ZONE NOT NULL DEFAULT CURRENT_TIMESTAMP
);

CREATE INDEX IF NOT EXISTS idx_customer_contacts_updated_at
  ON customer_contacts (updated_at DESC);