-- ECR-030 ModerationCase (read catalog)

CREATE TABLE IF NOT EXISTS moderation_cases (
  id uuid PRIMARY KEY DEFAULT gen_random_uuid(),
  code varchar(64) NOT NULL UNIQUE,
  title varchar(128) NOT NULL,
  status varchar(32) NOT NULL CHECK (status IN ('open','closed')),
  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_moderation_cases_active ON moderation_cases(active);

INSERT INTO moderation_cases(code, title, status, active, system)
VALUES ('demo_case_seed', '示例审核案', 'closed', true, true)
ON CONFLICT (code) DO NOTHING;