CREATE TABLE IF NOT EXISTS contract_services (
  id                        BIGINT PRIMARY KEY,
  contract_id               BIGINT NOT NULL,
  company_id                BIGINT,
  service_id                BIGINT,
  service_name              TEXT,
  description               TEXT,
  period_type               INTEGER,
  unit_price                NUMERIC(15,2),
  unit_cost                 NUMERIC(15,2),
  discount_percent          NUMERIC(5,2),
  adjusted_price            NUMERIC(15,2),
  quantity                  NUMERIC(10,2),
  invoice_description       TEXT,
  start_date                DATE,
  end_date                  DATE,
  internal_currency_price   NUMERIC(15,2),
  create_date               TIMESTAMPTZ,
  last_modified_date        TIMESTAMPTZ,
  created_at                TIMESTAMPTZ NOT NULL DEFAULT NOW(),
  updated_at                TIMESTAMPTZ NOT NULL DEFAULT NOW(),
  synced_at                 TIMESTAMPTZ NOT NULL DEFAULT NOW(),
  is_deleted                BOOLEAN NOT NULL DEFAULT FALSE,
  deleted_at                TIMESTAMPTZ
);

CREATE INDEX IF NOT EXISTS idx_contract_services_contract_id  ON contract_services(contract_id);
CREATE INDEX IF NOT EXISTS idx_contract_services_company_id   ON contract_services(company_id);
CREATE INDEX IF NOT EXISTS idx_contract_services_service_name ON contract_services(service_name);
CREATE INDEX IF NOT EXISTS idx_contract_services_is_deleted   ON contract_services(is_deleted);

ALTER TABLE contract_services
  DROP CONSTRAINT IF EXISTS fk_contract_services_contract;
ALTER TABLE contract_services
  ADD CONSTRAINT fk_contract_services_contract
  FOREIGN KEY (contract_id) REFERENCES contracts(id) ON DELETE CASCADE;