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path: root/src/main/java/dev/dnpm/oshelper/services/systemtherapie/OsSystemischeTherapieToProzedurwerteMapper.java
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/*
 * This file is part of onkostar-plugin-dnpm
 *
 * Copyright (C) 2023-2026 the original author or authors.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package dev.dnpm.oshelper.services.systemtherapie;

import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.ObjectMapper;
import de.itc.onkostar.api.Item;
import de.itc.onkostar.api.Procedure;
import dev.dnpm.oshelper.atc.AtcCode;
import java.util.*;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * Implementierung zum Mappen des Formulars "OS.Systemische Therapie" auf die Prozedurwerte
 *
 * @since 0.2.0
 */
public class OsSystemischeTherapieToProzedurwerteMapper implements ProzedurToProzedurwerteMapper {

  private static final Logger logger =
      LoggerFactory.getLogger(OsSystemischeTherapieToProzedurwerteMapper.class);

  @Override
  public Optional<Map<String, String>> apply(Procedure procedure) {
    try {
      return Optional.of(getProzedurwerte(procedure));
    } catch (Exception e) {
      logger.error("Fehler beim Mappen der Prozedur auf Prozedurwerte", e);
      return Optional.empty();
    }
  }

  private static Map<String, String> getProzedurwerte(Procedure prozedur) {
    List<String> wirkstoffListe = new ArrayList<>();
    // SubstanzenCodesListe enthält die Liste der SubstanzenCodes
    List<Map<String, String>> substanzenCodesListe = new ArrayList<>();

    // alle Werte der Prozedur auslesen
    Map<String, Item> alleWerte = prozedur.getAllValues();
    // Prozedurwerte enthält nur die interessanten Werte
    Map<String, String> prozedurwerte = new HashMap<>();
    // alle Werte durchgehen und die interessanten übernehmen
    if (alleWerte.containsKey("Beendigung")) {
      prozedurwerte.put("Beendigung", alleWerte.get("Beendigung").getValue());
    }
    if (alleWerte.containsKey("Ergebnis")) {
      prozedurwerte.put("Ergebnis", alleWerte.get("Ergebnis").getValue());
    }
    if (alleWerte.containsKey("Beginn")) {
      prozedurwerte.put("Beginn", alleWerte.get("Beginn").getString());
    }
    if (alleWerte.containsKey("Ende")) {
      prozedurwerte.put("Ende", alleWerte.get("Ende").getString());
    }
    if (alleWerte.containsKey("SubstanzenList")) {
      List<Map<String, String>> substanzList = alleWerte.get("SubstanzenList").getValue();
      for (var substanz : substanzList) {
        var substanzCodes = getSubstanzCode(substanz);
        substanzenCodesListe.add(substanzCodes);
        wirkstoffListe.add(substanzCodes.get("substance"));
      }
    }

    prozedurwerte.put("Wirkstoffe", String.join(", ", wirkstoffListe));
    try {
      ObjectMapper mapper = new ObjectMapper();
      prozedurwerte.put("WirkstoffCodes", mapper.writeValueAsString(substanzenCodesListe));
    } catch (JsonProcessingException e) {
      logger.error("Kann 'WirkstoffCodes' nicht in JSON-String mappen", e);
    }

    return prozedurwerte;
  }

  private static Map<String, String> getSubstanzCode(Map<String, String> substanz) {
    Map<String, String> substanzCode = new HashMap<>();
    if (substanz.containsKey("Substanz")) {
      if (AtcCode.isAtcCode(substanz.get("Substanz"))) {
        substanzCode.put("system", "ATC");
      } else {
        substanzCode.put("system", "other");
      }
      substanzCode.put("code", substanz.get("Substanz"));
    }
    if (substanz.containsKey("Substanz_shortDescription")) {
      substanzCode.put("substance", substanz.get("Substanz_shortDescription"));
    }
    return substanzCode;
  }
}