-- Durable business history survives task/attempt/attachment deletion.
CREATE TABLE team_progress_owners (
  organization_id uuid NOT NULL REFERENCES organizations(id),
  owner_user_id uuid NOT NULL,
  backfilled_at timestamptz,
  PRIMARY KEY (organization_id, owner_user_id),
  FOREIGN KEY (organization_id, owner_user_id) REFERENCES users(organization_id, id)
);
CREATE TABLE team_progress_events (
  id bigserial PRIMARY KEY,
  organization_id uuid NOT NULL REFERENCES organizations(id),
  owner_user_id uuid NOT NULL,
  group_key text NOT NULL,
  subject_key text NOT NULL,
  subject_kind text NOT NULL CHECK (subject_kind IN ('team', 'child')),
  event_key text NOT NULL,
  source_task_id text NOT NULL,
  execution_id text NOT NULL,
  effective_at timestamptz NOT NULL,
  recorded_at timestamptz NOT NULL,
  source_task_deleted_at timestamptz,
  detail_ciphertext text NOT NULL,
  UNIQUE (organization_id, owner_user_id, execution_id, event_key),
  FOREIGN KEY (organization_id, owner_user_id) REFERENCES users(organization_id, id)
);
CREATE INDEX team_progress_group_idx ON team_progress_events (organization_id, owner_user_id, group_key, effective_at, id);
CREATE INDEX team_progress_subject_idx ON team_progress_events (organization_id, owner_user_id, subject_key);
CREATE INDEX team_progress_task_idx ON team_progress_events (organization_id, owner_user_id, source_task_id);
CREATE TRIGGER team_progress_owner_not_admin BEFORE INSERT OR UPDATE OF organization_id, owner_user_id ON team_progress_owners
FOR EACH ROW EXECUTE FUNCTION reject_admin_task_principal('owner_user_id', 'team_progress_owner_not_admin');
CREATE TRIGGER team_progress_event_not_admin BEFORE INSERT OR UPDATE OF organization_id, owner_user_id ON team_progress_events
FOR EACH ROW EXECUTE FUNCTION reject_admin_task_principal('owner_user_id', 'team_progress_event_not_admin');