Add update checker

pom.xml

@@ -6,7 +6,7 @@
 
  <groupId>io.BrendonCurmi</groupId>
  <artifactId>FusionPixelmon</artifactId>
- <version>1.2</version>
+ <version>1.3</version>
 
  <properties>
  <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
@@ -42,5 +42,36 @@
  <artifactId>minecraftforge</artifactId>
  <version>1.12.2-14.23.5.2768</version>
  </dependency>
+
+ <dependency>
+ <groupId>org.json</groupId>
+ <artifactId>json</artifactId>
+ <version>20190722</version>
+ </dependency>
  </dependencies>
+
+ <build>
+ <plugins>
+ <plugin>
+ <groupId>org.apache.maven.plugins</groupId>
+ <artifactId>maven-shade-plugin</artifactId>
+ <version>1.6</version>
+ <executions>
+ <execution>
+ <phase>package</phase>
+ <goals>
+ <goal>shade</goal>
+ </goals>
+ <configuration>
+ <artifactSet>
+ <includes>
+ <include>org.json:json</include>
+ </includes>
+ </artifactSet>
+ </configuration>
+ </execution>
+ </executions>
+ </plugin>
+ </plugins>
+ </build>
 </project>

src/main/java/me/FusionDev/FusionPixelmon/FusionPixelmon.java

@@ -1,6 +1,7 @@
 package me.FusionDev.FusionPixelmon;
 
 import com.google.inject.Inject;
+import me.FusionDev.FusionPixelmon.apis.UpdateChecker;
 import me.FusionDev.FusionPixelmon.commands.ArcPlatesCmd;
 import me.FusionDev.FusionPixelmon.commands.PokeDesignerCmd;
 
@@ -27,6 +28,7 @@
 import org.spongepowered.api.text.Text;
 
 import java.io.File;
+import java.io.IOException;
 import java.nio.file.Path;
 
 import static com.pixelmonmod.pixelmon.Pixelmon.EVENT_BUS;
@@ -50,9 +52,9 @@ public static void main(String[] args) {
  // todo if change form and do something to affect form, wasted money
  // todo may need to update the lvl thing for nature as well
 
- static final String ID = "fusionpixelmon";
- static final String NAME = "FusionPixelmon";
- static final String VERSION = "1.2";
+ public static final String ID = "fusionpixelmon";
+ public static final String NAME = "FusionPixelmon";
+ public static final String VERSION = "1.3";
 
  private static final String CMD_PERM = ID + ".command.";
 
@@ -141,6 +143,11 @@ public void postInit(GamePostInitializationEvent event) {
  @Listener
  public void onServerStart(GameStartedServerEvent event) {
  logger.info("Successfully running FusionPixelmon!");
+ try {
+ UpdateChecker.check(logger);
+ } catch (IOException ignored) {
+ // If an exception occurs, just don't check for newer versions
+ }
  }
 
  @Listener

src/main/java/me/FusionDev/FusionPixelmon/apis/UpdateChecker.java

@@ -0,0 +1,60 @@
+package me.FusionDev.FusionPixelmon.apis;
+
+import me.FusionDev.FusionPixelmon.FusionPixelmon;
+import org.json.JSONArray;
+import org.json.JSONObject;
+import org.slf4j.Logger;
+
+import java.io.*;
+import java.net.URL;
+import java.net.URLConnection;
+import java.nio.charset.StandardCharsets;
+
+public class UpdateChecker {
+
+ private static final String VERSIONS_ENDPOINT = "https://ore.spongepowered.org/api/v1/projects/" + FusionPixelmon.ID + "/versions";
+ private static final String ORE_VERSIONS = "https://ore.spongepowered.org/FusionDev/FusionPixelmon/versions";
+
+ public static void main(String[] args) throws IOException {
+ check(null);
+ }
+
+ public static void check(Logger logger) throws IOException {
+ JSONArray payload = readJsonFromUrl(VERSIONS_ENDPOINT);
+ // Get 0th element as versions are in order of latest first
+ JSONObject data = (JSONObject) payload.get(0);
+ String name = data.getString("name");
+ if (name != null && !name.equals(FusionPixelmon.VERSION)) {
+ logger.info("There is a newer version of FusionPixelmon available! Version " + name + " @ " + ORE_VERSIONS);
+ }
+ }
+
+ /**
+ * Reads the data from the specified url and extracts it as a {@link JSONObject}.
+ *
+ * @param url the url of the data.
+ * @return the data from the url as a JSONObject.
+ * @throws IOException if an I/O error occurs.
+ */
+ public static JSONArray readJsonFromUrl(String url) throws IOException {
+ URLConnection urlConnection = new URL(url).openConnection();
+ urlConnection.addRequestProperty("User-Agent", "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:25.0) Gecko/20100101 Firefox/25.0");
+ InputStream inputStream = urlConnection.getInputStream();
+ BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream, StandardCharsets.UTF_8));
+ return new JSONArray(read(reader));
+ }
+
+ /**
+ * Reads the data from the specified reader and returns it as a string.
+ *
+ * @param reader the reader.
+ * @return the contents of the reader.
+ * @throws IOException if an I/O error occurs.
+ */
+ private static String read(Reader reader) throws IOException {
+ StringBuilder builder = new StringBuilder();
+ int cp;
+ while ((cp = reader.read()) != -1) builder.append((char) cp);
+ return builder.toString();
+ }
+}