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!7

concept Rule > ConceptWithGlobalID {
  S input, output, variables /* comma-separated */, comment;
  sS _fieldOrder = "globalID input output variables comment";
  
  Set<S> vars() { ret asCISet(tok_splitAtComma(variables)); }
}

concept PossibleExample > ConceptWithGlobalID {
  Rule rule;
  S input, output;
  SS mapping;
  sS _fieldOrder = "globalID rule input output mapping";
}

concept Input > ConceptWithGlobalID {
  S input;
}

p {
  db();
  indexConceptFields(PossibleExample, 'rule);
  indexConceptFieldsCI(Input, 'input, Rule, 'input);
  indexConceptFieldsOrdered(Rule, 'globalID);
}

static HCRUD rulesCRUD() {
  ret new HCRUD(rawLink("admin"), new HCRUD_Concepts<Rule>(Rule) {
    MapSO itemToMap(Rule r) {
      ret mapPlus(super.itemToMap(r), "Possible Examples" := countConcepts(PossibleExample, rule := r));
    }
    
    Cl<Rule> listConcepts() {
      ret conceptsSortedByFieldCI(Rule, 'input);
    }
  }.fieldHelp(variables := "comma-separated")
  ) {
    S renderValue(S field, O value) {
      S html = super.renderValue(field, value);
      if (eq(field, 'globalID))
        ret ahref(rawLink(str(value)), html);
      if (eq(field, 'input))
        ret b(html);
      ret html;
    }
  };
}

static HCRUD inputsCRUD() {
  ret new HCRUD(new HCRUD_Concepts<Input>(Input.class));
}

static HCRUD possibleExamplesCRUD() {
  ret new HCRUD(new HCRUD_Concepts<PossibleExample>(PossibleExample.class));
}

set flag NoNanoHTTPD. html {
  bool authed = webAuthed(params);

  if (empty(uri = dropSlashPrefix(uri)))
    ret htitle_h1("Rules")
      + (webAuthed(params) ? p(ahref(rawLink("admin"), "Admin")) : "")
      + ul_noEncode(map(list(Rule), r -> ahref(rawLink(r.globalIDStr()), htmlEncode2(r.input + " => " + r.output))));
    
  // serve rule
  if (possibleGlobalID(uri)) {
    Rule r = conceptWhere(Rule, globalID := GlobalID(uri));
    if (r == null) ret subBot_serve404("Rule not found");
    S html = htitle_h1("Rule " + r.globalID)
      + htmlTable2(mapToTwoElementMaps("Field", "Value", litorderedmap("Input" := r.input, "Output" := r.output, "Variables" := r.variables, "Comment" := r.comment)));
      
    html += new HCRUD(new HCRUD_Concepts<PossibleExample>(PossibleExample.class)
      .addFilter(rule := r)).renderTable(false);

    //Cl<PossibleExample> examples = conceptsWhere PossibleExample(rule := r);
    //ret possibleExamplesCRUD().render(false, )
    ret html;  
  }
  
  new Matches m;
  if (swic_slash(uri, "admin", m))
 {
    HMultiCRUD multi = new(rawLink("admin"), Rule, Input, PossibleExample) {
      HCRUD makeCRUD(S className) {
        if (eq(className, "Rule")) ret rulesCRUD();
        if (eq(className, "Input")) ret inputsCRUD();
        if (eq(className, "PossibleExample")) ret possibleExamplesCRUD();
        null;
      }

      LS naviComponents() {
        LS l = super.naviComponents();
        if (mutationRights)
          l.add(ahref(appendQueryToURL(baseLink, cmd := "processInputs"), "process inputs"));
        ret l;
      }
    } .mainTitle("Rules + Inputs")
      .mutationRights(authed);
    multi.downloadRights = authed;

    if (eqGet(params, cmd := "processInputs")) {
      try object checkWebAuthed(params);
      time {
        for (Input i)
          processInput(i.input);
      }
      ret multi.refreshWithMsgs("Processed " + nInputs(countConcepts(Input)) + " in " + lastTiming() + " ms");
    }

    ret multi.renderPage(m.rest(), params);
  }
  
  ret subBot_serve404();
}

static void processInput(S input) {
  for (Rule r) {
    new Set<PossibleExample> found;
    for (SS mapping : arbitraryVarsFlexMatchIC_iterator(r.vars(), r.input, input)) {
      PossibleExample e = uniq PossibleExample(rule := r, +input, +mapping);
      found.add(e);
      S output = replaceVars_optRound(r.output, mapping);
      output = applyTransformers(output);
      cset(found, +output);
    }
    deleteConcepts(listMinusSet(conceptsWhere(PossibleExample, rule := r), found));
  }
}

static IF1<S, IF1<S>> transformers() {
  ret mapGet_if1(litmap(nominativ := (IF1<S>) (lambda1 german_toNominativ)));
}

sS applyTransformers(S s) {
  pcall {
    ret tok_applyCurlyTransformers(transformers(), s);
  }
  ret s;
}