initial commit

src/main/java/de/grimsi/gameyfin/GameyfinApplication.java

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+package de.grimsi.gameyfin;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class GameyfinApplication {
+
+    public static void main(String[] args) {
+        SpringApplication.run(GameyfinApplication.class, args);
+    }
+
+}

src/main/java/de/grimsi/gameyfin/dto/GameDto.java

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+package de.grimsi.gameyfin.dto;
+
+import lombok.Builder;
+import lombok.Data;
+
+import java.io.File;
+import java.time.Instant;
+import java.util.List;
+
+@Data
+@Builder
+public class GameDto {
+    private String name;
+    private String publisher;
+    private Long igdbGameId;
+    private Instant releaseDate;
+
+    private List<File> files;
+    private Long fileSize;
+}

src/main/java/de/grimsi/gameyfin/entities/Game.java

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+package de.grimsi.gameyfin.entities;
+
+public class Game {
+}

src/main/java/de/grimsi/gameyfin/igdb/IgdbWrapper.java

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+package de.grimsi.gameyfin.igdb;
+
+import de.grimsi.gameyfin.dto.GameDto;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.http.MediaType;
+import org.springframework.stereotype.Service;
+import org.springframework.web.reactive.function.client.WebClient;
+import org.springframework.web.util.UriComponentsBuilder;
+
+import javax.annotation.PostConstruct;
+import java.net.URI;
+import java.time.Instant;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Optional;
+
+@Slf4j
+@Service
+public class IgdbWrapper {
+
+    @Value("${gameyfin.igdb.api.client-id}")
+    private String clientId;
+
+    @Value("${gameyfin.igdb.api.client-secret}")
+    private String clientSecret;
+
+    @Value("${gameyfin.igdb.config.preferred-platform}")
+    private int preferredPlatform;
+
+    private final WebClient twitchApiClient = WebClient.create();
+
+    private WebClient igdbApiClient;
+
+    private IgdbAccessToken accessToken;
+
+    @PostConstruct
+    public void init() {
+        authenticate();
+    }
+
+    public void authenticate() {
+        log.info("Authenticating on Twitch API...");
+
+        URI url = UriComponentsBuilder
+                .fromHttpUrl("https://id.twitch.tv/oauth2/token?client_id={client_id}&client_secret={client_secret}&grant_type=client_credentials")
+                .buildAndExpand(clientId, clientSecret)
+                .toUri();
+
+        this.accessToken = twitchApiClient
+                .post()
+                .uri(url)
+                .accept(MediaType.APPLICATION_JSON)
+                .retrieve()
+                .bodyToMono(IgdbAccessToken.class)
+                .block();
+
+        log.info("Successfully authenticated.");
+    }
+
+    private void initIgdbClient() {
+        if(accessToken == null) {
+            authenticate();
+        }
+
+        igdbApiClient = WebClient.builder()
+                .baseUrl("https://api.igdb.com/v4/")
+                .defaultHeader("Client-ID", clientId)
+                .defaultHeader("Authorization", "Bearer %s".formatted(accessToken.getAccessToken()))
+                .build();
+    }
+
+    public GameDto findGameByTitle(String title) {
+        if (igdbApiClient == null) {
+            initIgdbClient();
+        }
+
+        IgdbSearchResultDto searchResult = searchForGameByTitle(title).orElseThrow(() -> new RuntimeException("Could not find game with title : \"%s\"".formatted(title)));
+
+        return GameDto.builder()
+                .name(searchResult.getName())
+                .releaseDate(Instant.ofEpochSecond(searchResult.getPublishedAt()))
+                .igdbGameId(searchResult.getGame())
+                .build();
+    }
+
+    public Optional<IgdbSearchResultDto> searchForGameByTitle(String searchTerm) {
+        List<IgdbSearchResultDto> searchResults = new ArrayList<>();
+
+        igdbApiClient.post()
+                .uri("search")
+                .bodyValue("fields *; search \"%s\"; limit 50;".formatted(searchTerm))
+                .retrieve()
+                .bodyToFlux(IgdbSearchResultDto.class)
+                .doOnNext(searchResults::add)
+                .blockLast();
+
+        if(searchResults.isEmpty()) return Optional.empty();
+
+        // First check if there are any matches with the exact search term
+        // If no exact match has been found, check if there are matches where the name ends with the search term
+        // This will filter out most DLCs and similiar stuff, but will detect a game even when your search term is not exactly the title
+        //
+        // Example: Searching for "Rainbow Six Siege" will result in returning "Tom Clancy's Rainbow Six Siege" (the game we want)
+        //          If we just used the first result from IGDB we would get something like "Tom Clancy's Rainbow Six Siege Demon Veil" as a result
+
+        Optional<IgdbSearchResultDto> srExactTitleMatch = searchResults.stream().filter(s -> s.getName().equals(searchTerm)).findFirst();
+        if(srExactTitleMatch.isPresent()) return srExactTitleMatch;
+
+        Optional<IgdbSearchResultDto> srTitleEndsWithMatch = searchResults.stream().filter(s -> s.getName().endsWith(searchTerm)).findFirst();
+        if(srTitleEndsWithMatch.isPresent()) return srTitleEndsWithMatch;
+
+        return Optional.of(searchResults.get(0));
+    }
+}

src/main/java/de/grimsi/gameyfin/igdb/dto/IgdbAccessToken.java

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+package de.grimsi.gameyfin.igdb;
+
+import com.fasterxml.jackson.databind.PropertyNamingStrategies;
+import com.fasterxml.jackson.databind.annotation.JsonNaming;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+@Data
+@NoArgsConstructor
+@JsonNaming(PropertyNamingStrategies.SnakeCaseStrategy.class)
+public class IgdbAccessToken {
+    private String accessToken;
+    private Long expiresIn;
+    private String tokenType;
+}

src/main/java/de/grimsi/gameyfin/igdb/dto/IgdbGame.java

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+package de.grimsi.gameyfin.igdb.dto;public class IgdbGame {
+}

src/main/java/de/grimsi/gameyfin/rest/GameyfinDevController.java

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+package de.grimsi.gameyfin.rest;
+
+import de.grimsi.gameyfin.dto.GameDto;
+import de.grimsi.gameyfin.igdb.IgdbWrapper;
+import de.grimsi.gameyfin.igdb.dto.IgdbGame;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.MediaType;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.RestController;
+import org.springframework.web.client.HttpStatusCodeException;
+import org.springframework.web.server.ResponseStatusException;
+
+@RestController
+public class GameyfinController {
+
+    @Autowired
+    IgdbWrapper igdbWrapper;
+
+    @GetMapping(value = "/findGameByTitle/{title}", produces = MediaType.APPLICATION_JSON_VALUE)
+    public GameDto findGameByTitle(@PathVariable("title") String title) {
+        IgdbGame game;
+
+        try {
+            game = igdbWrapper.findGameByTitle(title);
+        } catch (Exception e) {
+            throw new ResponseStatusException(HttpStatus.NOT_FOUND, e.getMessage());
+        }
+
+        return GameDto.builder().name(game.getName()).releaseDate(game.getFirstReleaseDate()).build();
+    }
+}

src/main/java/de/grimsi/gameyfin/service/FilesystemService.java

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+package de.grimsi.gameyfin.service;public class FilesystemService {
+}

src/main/resources/application-dev.yml

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+gameyfin:
+  root: F:\Spiele
+  igdb:
+    api:
+      client-id: 23l3l5qshx4dwjuao6yb8jyf1qrd08
+      client-secret: hf4iivmkzgne552j17p2d64xm03die
+
+logging:
+  level:
+    de.grimsi: debug

src/main/resources/application.yml

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+server.port: 8080
+spring.jackson.default-property-inclusion: non_null
+
+gameyfin:
+  root: ""
+  igdb:
+    config:
+      preferred-platform: 6
+    api:
+      client-id: ""
+      client-secret: ""

src/test/java/de/grimsi/gameyfin/GameyfinApplicationTests.java

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+package de.grimsi.gameyfin;
+
+import org.junit.jupiter.api.Test;
+import org.springframework.boot.test.context.SpringBootTest;
+
+@SpringBootTest
+class GameyfinApplicationTests {
+
+	@Test
+	void contextLoads() {
+	}
+
+}