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!7

concept BInput > BEAObject {
  S text;
  
  toString { ret "[\*id*/] Input " + quote(text); }
}

concept BPattern > BEAObject {
  S pattern;
  
  toString { ret "[\*id*/] " + shortDynName(this) + " " + quote(pattern); }
  
  void reactWith(BInput input) {}
}

concept BStarPattern > BPattern {
  void reactWith(BInput input) {
    LS mapping = matchesToStringList(flexMatchIC_first(pattern, input.text));
    if (mapping == null) ret;
    uniq BEAObject(
      type := "match",
      +input,
      pattern := this,
      +mapping);
  }
}

concept BAngleVarPattern > BPattern {
  void reactWith(BInput input) {
    SS mapping = flexMatchAngleBracketVarsIC_first(pattern, input.text);
    if (mapping == null) ret;
    uniq BEAObject(
      type := "match",
      +input,
      pattern := this,
      +mapping);
  }
}

concept BMatch {
  new Ref<BPattern> pattern;
  SS mapping;
}

cmodule2 > DynCRUD_v2<BEAObject> {
  transient Map<S, Class<? extends BEAObject>> beaClasses = calcBeaClasses();
  
  start {
    print(+beaClasses);
    crud.specialFieldsForItem = a -> {
      MapSO map = litorderedmap(crud.hID, str(a.id));
      S j = crud.javaClassDescForItem(a);
      S type = getStringOpt type(a);
      mapPut(map, "Class/Type", joinUniqueNemptiesCI("/", j, type));
      ret map;
    };

    thread {
      uniq BInput(text := "UBports community delivers 'second-largest release of Ubuntu Touch ever'");
      //uniq BPattern(pattern := "* delivers *");
      uniq BAngleVarPattern(pattern := "<company> delivers <product>");
      
      reactAll();
    }
  }
  
  void reactAll {
    for (BPattern p)
      for (BInput i) pcall {
        p.reactWith(i);
      }
  }
  
  // e.g. "Input" => BInput
  Map<S, Class<? extends BEAObject>> calcBEAClasses() {
    ret ciMapToKeys(c -> dropPrefix("B", shortClassName(c)),
      listMinusItem(BEAObject, myNonAbstractClassesImplementing(BEAObject)));
  }
  
  <A extends BEAObject> OrError<A> migrateConceptToClass(Class<A> c, BEAObject in) {
    try-OrError {
      A out = unlisted(c);
      for (S field : conceptFields(in)) {
        continue if eq(field, "type");
        cset(out, cget(in, field));
        // TODO: check Ref types
      }
      ret OrError.ok(out);
    }
  }
}