get volume level (#39)

src/main/java/de/unistuttgart/towercrushbackend/clients/OverworldClient.java

@@ -0,0 +1,28 @@
+package de.unistuttgart.towercrushbackend.clients;
+
+import de.unistuttgart.towercrushbackend.data.KeybindingDTO;
+import org.springframework.cloud.openfeign.FeignClient;
+import org.springframework.web.bind.annotation.CookieValue;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+
+/**
+ * This client sends a Request to the Overworld-Backend at the beginning of the game to retrieve
+ * keybinding statistics for a player.
+ */
+@FeignClient(name = "overworldClient", url = "${overworld.url}/players")
+public interface OverworldClient {
+    /**
+     * Retrieves the keybinding statistics for a specific player.
+     *
+     * @param playerId the player id, whose keybinding statistics are to be retrieved
+     * @param binding the specific keybinding to retrieve statistics
+     * @param accessToken the users access token
+     */
+    @GetMapping("/{playerId}/keybindings/{binding}")
+    KeybindingDTO getKeybindingStatistic(
+            @PathVariable("playerId") final String playerId,
+            @PathVariable("binding") final String binding,
+            @CookieValue("access_token") final String accessToken
+    );
+}

src/main/java/de/unistuttgart/towercrushbackend/controller/ConfigController.java

@@ -59,6 +59,18 @@ public ConfigurationDTO getConfiguration(
         return configurationMapper.configurationToConfigurationDTO(configService.getConfiguration(id));
     }
 
+    @GetMapping("/{id}/volume")
+    public ConfigurationDTO getAllConfiguration(
+            @CookieValue("access_token") final String accessToken,
+            @PathVariable final UUID id
+    ) {
+        jwtValidatorService.validateTokenOrThrow(accessToken);
+        log.debug("get configuration {}", id);
+        return configurationMapper.configurationToConfigurationDTO(
+                configService.getAllConfigurations(id, accessToken)
+        );
+    }
+
     @PostMapping("")
     @ResponseStatus(HttpStatus.CREATED)
     public ConfigurationDTO createConfiguration(

src/main/java/de/unistuttgart/towercrushbackend/data/Configuration.java

@@ -24,6 +24,10 @@ public class Configuration {
 
     @OneToMany(cascade = CascadeType.ALL, fetch = FetchType.EAGER)
     Set<Question> questions;
+    /**
+     * The volume level that is setted by the player.
+     */
+    Integer volumeLevel;
 
     public Configuration(final Set<Question> questions) {
         this.questions = questions;

src/main/java/de/unistuttgart/towercrushbackend/data/ConfigurationDTO.java

@@ -23,7 +23,10 @@ public class ConfigurationDTO {
     UUID id;
 
     Set<QuestionDTO> questions;
-
+    /**
+     * The volume level that is setted by the player.
+     */
+    Integer volumeLevel;
     public ConfigurationDTO(final Set<QuestionDTO> questions) {
         this.questions = questions;
     }

src/main/java/de/unistuttgart/towercrushbackend/data/KeybindingDTO.java

@@ -0,0 +1,19 @@
+package de.unistuttgart.towercrushbackend.data;
+
+import lombok.AccessLevel;
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+import lombok.experimental.FieldDefaults;
+
+/**
+ * The KeybindingDTO.class contains all data that is retrieved from the overworld-backend
+ */
+@Data
+@FieldDefaults(level = AccessLevel.PRIVATE)
+@NoArgsConstructor
+@AllArgsConstructor
+public class KeybindingDTO {
+    private String binding;
+    private String key;
+}

src/main/java/de/unistuttgart/towercrushbackend/service/ConfigService.java

@@ -1,9 +1,8 @@
 package de.unistuttgart.towercrushbackend.service;
 
-import de.unistuttgart.towercrushbackend.data.Configuration;
-import de.unistuttgart.towercrushbackend.data.ConfigurationDTO;
-import de.unistuttgart.towercrushbackend.data.Question;
-import de.unistuttgart.towercrushbackend.data.QuestionDTO;
+import de.unistuttgart.gamifyit.authentificationvalidator.JWTValidatorService;
+import de.unistuttgart.towercrushbackend.clients.OverworldClient;
+import de.unistuttgart.towercrushbackend.data.*;
 import de.unistuttgart.towercrushbackend.data.mapper.ConfigurationMapper;
 import de.unistuttgart.towercrushbackend.data.mapper.QuestionMapper;
 import de.unistuttgart.towercrushbackend.repositories.ConfigurationRepository;
@@ -37,6 +36,13 @@ public class ConfigService {
     @Autowired
     QuestionRepository questionRepository;
 
+    @Autowired
+    private OverworldClient overworldClient;
+
+    @Autowired
+    private JWTValidatorService jwtValidatorService;
+
+
     /**
      * Search a configuration by given id
      *
@@ -59,6 +65,43 @@ public Configuration getConfiguration(final UUID id) {
             );
     }
 
+    /**
+     * Search a configuration by given id and get volume level from overworld-backend
+     *
+     * @param id the id of the configuration searching for
+     * @param accessToken the users access token
+     * @return the found configuration
+     * @throws ResponseStatusException  when configuration by configurationName could not be found
+     * @throws IllegalArgumentException if at least one of the arguments is null
+     */
+    public Configuration getAllConfigurations(final UUID id, final String accessToken) {
+        if (id == null) {
+            throw new IllegalArgumentException("id is null");
+        }
+        final String userId = jwtValidatorService.extractUserId(accessToken);
+
+        KeybindingDTO keyBindingVolumeLevel = overworldClient.getKeybindingStatistic(userId, "VOLUME_LEVEL", accessToken);
+        Integer volumeLevel = Integer.parseInt(keyBindingVolumeLevel.getKey());
+
+        Configuration config = configurationRepository
+                .findById(id)
+                .orElseThrow(() ->
+                        new ResponseStatusException(
+                                HttpStatus.NOT_FOUND,
+                                String.format("There is no configuration with id %s.", id)
+                        )
+                );
+        config.setVolumeLevel(volumeLevel);
+        return configurationRepository
+                .findById(id)
+                .orElseThrow(() ->
+                        new ResponseStatusException(
+                                HttpStatus.NOT_FOUND,
+                                String.format("There is no configuration with id %s.", id)
+                        )
+                );
+    }
+
     /**
      * Save a configuration
      *