-- ECR-031 CrisisEvent (read catalog)

CREATE TABLE IF NOT EXISTS crisis_events (
  id uuid PRIMARY KEY DEFAULT gen_random_uuid(),
  code varchar(64) NOT NULL UNIQUE,
  title varchar(128) NOT NULL,
  severity varchar(16) NOT NULL CHECK (severity IN ('high','critical')),
  active boolean NOT NULL DEFAULT true,
  system boolean NOT NULL DEFAULT false,
  created_at timestamptz NOT NULL DEFAULT now(),
  updated_at timestamptz NOT NULL DEFAULT now()
);

CREATE INDEX IF NOT EXISTS idx_crisis_events_active ON crisis_events(active);

INSERT INTO crisis_events(code, title, severity, active, system)
VALUES ('demo_crisis_event', '示例危机事件占位', 'high', true, true)
ON CONFLICT (code) DO NOTHING;