preview сделные на отьебись

src/main/java/app/updates/PreviewUpdater.java

@@ -0,0 +1,89 @@
+package app.updates;
+
+import app.entities.Stats;
+import app.entities.server.Server;
+import jakarta.annotation.PostConstruct;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.stereotype.Component;
+import org.springframework.web.client.RestClientException;
+import org.springframework.web.client.RestTemplate;
+
+import java.util.HashMap;
+
+@Component
+public class PreviewUpdater extends BaseUpdater{
+    Stats stats;
+    RestTemplate restTemplate;
+    private final Logger logger = LoggerFactory.getLogger(PreviewUpdater.class);
+    //ТУТ НАДО ЧТОБ ЗНАЧЕНИЕ ИЗ ЕНВ БРАЛСЬ
+    private String domain = "tf2.pblr-nyk.pro";
+    private String preview = "https://%s/site_content/images/preview/%s.%s";
+
+    @Value("${backend.updates.a2s}")
+    private boolean update = false;
+    private HashMap<String, String> preview_cache;
+
+    @Autowired
+    public PreviewUpdater(Stats stats) {
+        this.stats = stats;
+        restTemplate = new RestTemplate();
+        preview_cache = new HashMap();
+    }
+
+    @PostConstruct
+    public void updateValues() {
+        if (update) {
+            logger.warn("Preview loader enabled");
+            stats.getServers().forEach((server_name, server) -> {
+                CreateTaskUpdater(() -> {
+                    loadPreview(stats.getServers().get(server_name));
+                    return null;
+                }, 30000);
+            });
+        }
+    }
+
+    public void loadPreview(Server server) {
+        if (server.getMap() == null || server.getMap().isEmpty()) {
+            logger.warn("{} not have map, set default", server.getName());
+            server.setPreview(not_found());
+            return;
+        }
+
+        if (preview_cache.containsKey(server.getMap())) {
+            if (preview_cache.get(server.getMap()).equals(server.getPreview())) return;
+        }
+
+        String url = getPreview(server.getMap());
+        if (url != null) {
+            server.setPreview(url);
+            preview_cache.put(server.getMap(), server.getPreview());
+        } else {
+            logger.warn("Not found preview for {}", server.getMap());
+            server.setPreview(not_found());
+        }
+    }
+
+    public String getPreview(String map) {
+        String url;
+        //Check jpg
+        try {
+            url = preview.formatted(domain, map, "jpg");
+            restTemplate.headForHeaders(url);
+            return url;
+        } catch (RestClientException err) {}
+        //Check txt contained url
+        try {
+            url = preview.formatted(domain, map, "url");
+            return restTemplate.getForEntity(url, String.class).getBody().replace("\n", "");
+        } catch (RestClientException err) {}
+        return null;
+    }
+
+    public String not_found() {
+        return preview.formatted(domain, "_default", "jpg");
+    }
+}