-- 060_isms_document_lifecycle.sql — Ciclo di vita documentale ISMS (ISO/IEC 27001 cl. 7.5)
-- Record DDL. Apply autoritativo idempotente: application/cli/migrate_060_isms_doc_lifecycle.php
-- (ALTER guardati da information_schema; CREATE TABLE IF NOT EXISTS).

-- Stati del ciclo di vita: aggiunti 'published' e 'archived'
ALTER TABLE isms_documents
  MODIFY COLUMN status ENUM('draft','review','approved','published','archived') NOT NULL DEFAULT 'draft';

-- Tracciamento del ciclo di vita
ALTER TABLE isms_documents ADD COLUMN reviewed_by      INT NULL;
ALTER TABLE isms_documents ADD COLUMN reviewed_at      DATETIME NULL;
ALTER TABLE isms_documents ADD COLUMN approved_by      INT NULL;
ALTER TABLE isms_documents ADD COLUMN approved_at      DATETIME NULL;
ALTER TABLE isms_documents ADD COLUMN published_by     INT NULL;
ALTER TABLE isms_documents ADD COLUMN published_at     DATETIME NULL;
ALTER TABLE isms_documents ADD COLUMN archived_at      DATETIME NULL;
ALTER TABLE isms_documents ADD COLUMN review_note      VARCHAR(500) NULL;
ALTER TABLE isms_documents ADD COLUMN effective_date   DATE NULL;
ALTER TABLE isms_documents ADD COLUMN next_review_date DATE NULL;

-- Storico versioni (snapshot ad ogni approvazione/pubblicazione/nuova versione)
CREATE TABLE IF NOT EXISTS isms_document_versions (
  id INT AUTO_INCREMENT PRIMARY KEY,
  document_id INT NOT NULL,
  isms_model_id INT NOT NULL,
  organization_id INT NOT NULL,
  version VARCHAR(20) NOT NULL,
  status VARCHAR(20) NOT NULL,
  body_html LONGTEXT NULL,
  change_note VARCHAR(255) NULL,
  created_by INT NULL,
  created_at DATETIME NULL,
  INDEX idx_docver_doc (document_id),
  INDEX idx_docver_org (organization_id)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;