!7

concept Domain {
  S domain;
  S moduleLibID;
  bool mustBeEnabled;
  
  toString { ret super.toString() + " " + domain; }
}

cmodule2 Eleu3 > DynEleu {
  transient CRUD<Domain> domainCRUD;
  switchable bool verbose;
  switchable bool debugNanoHTTPD;
  switchable S sameSite;
  
  start {
    NanoHTTPD_debug = debugNanoHTTPD;
    dbIndexingCI(Domain, 'domain);
    uniqCI Domain(domain := "<default>");
    domainCRUD = new CRUD(Domain);
  }
  
  visual jtabs(
    "Main", super,
    "Domains" := domainCRUD.visualize());
  
  @Override 
  S moduleForDomain(S domain) {
    for (Domain d : domainsInMatchingOrder()) {
      if (domainIsUnder(domain, d.domain)) {
        S mod = findMod(d);
        if (verbose) print("Domain matched: " + domain + " / " + d.domain + " => " + mod); 
        try answer mod;
      } else
        if (verbose) print("Domain not matched: " + domain + " / " + d.domain); 
    }
    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);
  }

  ServeHttp_CookieHandler makeCookieHandler() {
    ServeHttp_CookieHandler cookieHandler = super.makeCookieHandler();
    cookieHandler.metaParams = appendPrefixIfNempty("SameSite=", sameSite);
    ret cookieHandler;
  }

  // API
  
  Cl<Domain> domainsInMatchingOrder() {
    ret sortByCalculatedFieldICDesc(
      filter(list(Domain), d -> !eqic(d.domain, "<default>")),
      d -> reversed(d.domain));
  }
}