-- ============================================================
-- 004_domain_health_status.sql
-- Persistent storage of the most recent health check result per domain.
-- Updated whenever the user clicks "Check health".
--
-- The 'has_problems' boolean drives the banner in the mailbox view.
-- The 'details' JSONB column stores the full report so the modal can
-- show last-known state without re-running the checks.
-- ============================================================

CREATE TABLE IF NOT EXISTS domain_health_status (
  domain        TEXT PRIMARY KEY,
  checked_at    TIMESTAMPTZ NOT NULL DEFAULT now(),
  has_problems  BOOLEAN NOT NULL DEFAULT false,
  details       JSONB NOT NULL DEFAULT '{}'::jsonb
);

CREATE INDEX IF NOT EXISTS idx_domain_health_problems
  ON domain_health_status(has_problems, checked_at DESC);