Korvo 6 parser to gtr (#12)

* chore: updated comment

* refactor: added google translation domain

* refactor: added google translation parser

* refactor: changed return type of google translator to translation

src/main/java/ru/dankoy/korvotoanki/core/command/GoogleTranslateCommand.java

@@ -16,7 +16,7 @@ public class GoogleTranslateCommand {
   private final ObjectMapperService objectMapperService;
 
 
-  // gt --text hello --options t,at,md
+  // gt --text hello --options t,at,md,bd
   @Command(command = "google-translate",
       alias = "gt",
       description = "Translate text using google translate")

src/main/java/ru/dankoy/korvotoanki/core/domain/googletranslation/Definition.java

@@ -0,0 +1,10 @@
+package ru.dankoy.korvotoanki.core.domain.googletranslation;
+
+
+/**
+ * @param type noun, verb, exclamation, etc
+ * @param info the actual definition
+ */
+public record Definition(String type, String info) {
+
+}

src/main/java/ru/dankoy/korvotoanki/core/domain/googletranslation/GoogleTranslation.java

@@ -0,0 +1,19 @@
+package ru.dankoy.korvotoanki.core.domain.googletranslation;
+
+import java.util.ArrayList;
+import java.util.List;
+import lombok.Data;
+import lombok.RequiredArgsConstructor;
+
+
+@RequiredArgsConstructor
+@Data
+public class GoogleTranslation {
+
+  private final List<String> translations = new ArrayList<>();
+
+  private final String transcription;
+
+  private final List<Definition> definitions = new ArrayList<>();
+
+}

src/main/java/ru/dankoy/korvotoanki/core/service/googletrans/GoogleTranslator.java

@@ -1,6 +1,7 @@
 package ru.dankoy.korvotoanki.core.service.googletrans;
 
 import java.util.List;
+import ru.dankoy.korvotoanki.core.domain.googletranslation.GoogleTranslation;
 
 /*
 * Used info from:
@@ -11,6 +12,6 @@
 
 public interface GoogleTranslator {
 
-  String translate(String text, String targetLanguage, String sourceLanguage,
+  GoogleTranslation translate(String text, String targetLanguage, String sourceLanguage,
       List<String> dtOptions);
 }

src/main/java/ru/dankoy/korvotoanki/core/service/googletrans/GoogleTranslatorOkHttp.java

@@ -11,7 +11,9 @@
 import okhttp3.Response;
 import org.springframework.stereotype.Service;
 import ru.dankoy.korvotoanki.config.GoogleTranslatorProperties;
+import ru.dankoy.korvotoanki.core.domain.googletranslation.GoogleTranslation;
 import ru.dankoy.korvotoanki.core.exceptions.GoogleTranslatorException;
+import ru.dankoy.korvotoanki.core.service.googletrans.parser.GoogleTranslatorParser;
 
 
 @Slf4j
@@ -23,8 +25,10 @@ public class GoogleTranslatorOkHttp implements GoogleTranslator {
 
   private final GoogleTranslatorProperties googleTranslatorProperties;
 
+  private final GoogleTranslatorParser googleTranslatorParser;
+
   @Override
-  public String translate(String text,
+  public GoogleTranslation translate(String text,
       String targetLanguage,
       String sourceLanguage,
       List<String> dtOptions
@@ -68,7 +72,10 @@ public String translate(String text,
     try (var response = call.execute()) {
 
       checkStatus(response);
-      return response.body() != null ? response.body().string() : "";
+      var body = response.body() != null ? response.body().string() : "";
+
+      return googleTranslatorParser.parse(body);
+
 
     } catch (Exception e) {
       throw new GoogleTranslatorException(e);

src/main/java/ru/dankoy/korvotoanki/core/service/googletrans/parser/GoogleTranslatorParser.java

@@ -0,0 +1,8 @@
+package ru.dankoy.korvotoanki.core.service.googletrans.parser;
+
+import ru.dankoy.korvotoanki.core.domain.googletranslation.GoogleTranslation;
+
+public interface GoogleTranslatorParser {
+
+  GoogleTranslation parse(String data);
+}

src/main/java/ru/dankoy/korvotoanki/core/service/googletrans/parser/GoogleTranslatorParserImpl.java

@@ -0,0 +1,85 @@
+package ru.dankoy.korvotoanki.core.service.googletrans.parser;
+
+
+import com.fasterxml.jackson.databind.JsonNode;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.node.ArrayNode;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Objects;
+import java.util.stream.IntStream;
+import lombok.RequiredArgsConstructor;
+import org.springframework.stereotype.Service;
+import ru.dankoy.korvotoanki.core.domain.googletranslation.Definition;
+import ru.dankoy.korvotoanki.core.domain.googletranslation.GoogleTranslation;
+import ru.dankoy.korvotoanki.core.exceptions.GoogleTranslatorException;
+
+// Currently parse only data for keys: t,at,md,rm
+
+@Service
+@RequiredArgsConstructor
+public class GoogleTranslatorParserImpl implements GoogleTranslatorParser {
+
+  private final ObjectMapper mapper;
+
+  @Override
+  public GoogleTranslation parse(String data) {
+
+    String transcriptionString = null;
+
+    JsonNode jsonNodeRoot = toJsonNode(data);
+
+    // translation and transcription.
+    ArrayNode translationAndTranscriptionNode = (ArrayNode) jsonNodeRoot.get(0);
+    ArrayNode multipleTranslations = (ArrayNode) jsonNodeRoot.get(5);
+
+    ArrayNode definitions = (ArrayNode) jsonNodeRoot.get(12);
+
+    // obtain transcription
+    JsonNode transcription = translationAndTranscriptionNode.get(1).get(3);
+    if (Objects.nonNull(transcription)) {
+      transcriptionString = transcription.asText();
+    }
+
+    // obtain list of translations
+    ArrayNode mts = (ArrayNode) multipleTranslations.get(0).get(2);
+    List<String> translations = IntStream.range(0, mts.size())
+        .mapToObj(mts::get)
+        .map(c -> (ArrayNode) c)
+        .map(n -> n.get(0).asText())
+        .toList();
+
+    List<Definition> defs = new ArrayList<>();
+    // obtain definitions
+    if (Objects.nonNull(definitions)) {
+      defs = IntStream.range(0, definitions.size())
+          .mapToObj(definitions::get)
+          .map(d -> {
+            var type = d.get(0).asText();
+            var def = d.get(1).get(0).get(0).asText();
+            return new Definition(type, def);
+          })
+          .toList();
+    }
+
+    var googleTranslation = new GoogleTranslation(transcriptionString);
+    googleTranslation.getTranslations().addAll(translations);
+    googleTranslation.getDefinitions().addAll(defs);
+
+    return googleTranslation;
+
+  }
+
+  private JsonNode toJsonNode(String json) {
+
+    try {
+      return mapper.readTree(json);
+    } catch (Exception e) {
+      throw new GoogleTranslatorException(
+          String.format("Couldn't read json tree '%s'", json), e);
+    }
+
+  }
+
+
+}