!7

concept Domain {
  S domain;
  S moduleLibID;
  bool mustBeEnabled;
}

cmodule Eleu3 > DynEleu {
  transient CRUD<Domain> domainCRUD;
  
  start {
    dbIndexingCI(Domain, 'domain);
    domainCRUD = new CRUD(Domain);
  }
  
  visual jtabs(
    "Main", super,
    "Domains" := domainCRUD.visualize());
  
  @Override 
  S moduleForDomain(S domain) {
    for (Domain d : domainsInMatchingOrder()) {
      bool b = domainIsUnder(domain, d.domain);
      if (verbose) print("Checking " + domain + " / " + d.domain + " => " + b); 
      if (b)
        try answer findMod(d);
    }
    ret findMod(defaultDomain());
  }
  
  Domain defaultDomain() {
    ret conceptWhereCI Domain(domain := "<default>");
  }
  
  S findMod(Domain d) {
    if (d == null) null;
    ret d.mustBeEnabled
      ? dm_findModuleWithParams(d.moduleLibID, enabled := true)
      : dm_findModule(d.moduleLibID);
  }
  
  // API
  
  Cl<Domain> domainsInMatchingOrder() {
    ret sortByCalculatedFieldICDesc(
      filter(list(Domain), d -> !eqic(d.domain, "<default>")),
      d -> reversed(d.domain));
  }
}