Reworked best friends list

- Saving best friends' UUIDs now (instead of just the name), also checking for name changes periodically to keep best friends list up to date
- Moved best friends add/remove functionality from config GUI back to commands (`/moo <add|remove> <name>`)

4 files changed, 149 insertions, 56 deletions

diff --git a/src/main/java/eu/olli/cowmoonication/util/ApiUtils.java b/src/main/java/eu/olli/cowmoonication/util/ApiUtils.java
new file mode 100644
index 0000000..5ff7d5d
--- /dev/null
+++ b/src/main/java/eu/olli/cowmoonication/util/ApiUtils.java
@@ -0,0 +1,70 @@
+package eu.olli.cowmoonication.util;
+
+import com.google.gson.Gson;
+import com.google.gson.GsonBuilder;
+import com.google.gson.JsonArray;
+import com.google.gson.JsonParser;
+import com.mojang.util.UUIDTypeAdapter;
+import eu.olli.cowmoonication.friends.Friend;
+
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.net.HttpURLConnection;
+import java.net.URL;
+import java.util.UUID;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+import java.util.function.Consumer;
+
+public class ApiUtils {
+    public static final String UUID_NOT_FOUND = "UUID-NOT-FOUND";
+    private static final String NAME_TO_UUID_URL = "https://api.mojang.com/users/profiles/minecraft/";
+    private static final String UUID_TO_NAME_URL = "https://api.mojang.com/user/profiles/%s/names";
+    private static ExecutorService pool = Executors.newCachedThreadPool();
+    private static Gson gson = new GsonBuilder().registerTypeAdapter(UUID.class, new UUIDTypeAdapter()).registerTypeAdapter(Friend.class, new Friend.FriendCreator()).create();
+
+    private ApiUtils() {
+    }
+
+    public static void fetchFriendData(String name, Consumer<Friend> action) {
+        pool.execute(() -> action.accept(getFriend(name)));
+    }
+
+    private static Friend getFriend(String name) {
+        try {
+            HttpURLConnection connection = (HttpURLConnection) new URL(NAME_TO_UUID_URL + name).openConnection();
+            connection.setReadTimeout(5000);
+            if (connection.getResponseCode() == 204) {
+                return Friend.FRIEND_NOT_FOUND;
+            } else if (connection.getResponseCode() == 200) {
+                return gson.fromJson(new BufferedReader(new InputStreamReader(connection.getInputStream())), Friend.class);
+            }
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+        return null;
+    }
+
+    public static void fetchCurrentName(Friend friend, Consumer<String> action) {
+        pool.execute(() -> action.accept(getCurrentName(friend)));
+    }
+
+    private static String getCurrentName(Friend friend) {
+        try {
+            HttpURLConnection connection = (HttpURLConnection) new URL(String.format(UUID_TO_NAME_URL, UUIDTypeAdapter.fromUUID(friend.getUuid()))).openConnection();
+            connection.setReadTimeout(5000);
+            if (connection.getResponseCode() == 204) {
+                return UUID_NOT_FOUND;
+            } else if (connection.getResponseCode() == 200) {
+                JsonArray nameHistoryData = new JsonParser().parse(new BufferedReader(new InputStreamReader(connection.getInputStream()))).getAsJsonArray();
+                if (nameHistoryData.size() > 0) {
+                    return nameHistoryData.get(nameHistoryData.size() - 1).getAsJsonObject().get("name").getAsString();
+                }
+            }
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+        return null;
+    }
+}
diff --git a/src/main/java/eu/olli/cowmoonication/util/ChatHelper.java b/src/main/java/eu/olli/cowmoonication/util/ChatHelper.java
new file mode 100644
index 0000000..a0820c0
--- /dev/null
+++ b/src/main/java/eu/olli/cowmoonication/util/ChatHelper.java
@@ -0,0 +1,74 @@
+package eu.olli.cowmoonication.util;
+
+import net.minecraft.client.Minecraft;
+import net.minecraft.util.ChatComponentText;
+import net.minecraft.util.ChatStyle;
+import net.minecraft.util.EnumChatFormatting;
+import net.minecraft.util.IChatComponent;
+import net.minecraftforge.client.event.ClientChatReceivedEvent;
+import net.minecraftforge.common.MinecraftForge;
+
+import java.util.ArrayList;
+import java.util.Iterator;
+import java.util.List;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+public class ChatHelper {
+    private static final Pattern USELESS_JSON_CONTENT_PATTERN = Pattern.compile("\"[A-Za-z]+\":false,?");
+    private static final int DISPLAY_DURATION = 5000;
+    private List<IChatComponent> offlineMessages = new ArrayList<>();
+    private String[] aboveChatMessage;
+    private long aboveChatMessageExpiration;
+
+    public ChatHelper() {
+    }
+
+    public void sendMessage(EnumChatFormatting color, String text) {
+        sendMessage(new ChatComponentText(text).setChatStyle(new ChatStyle().setColor(color)));
+    }
+
+    public void sendMessage(IChatComponent chatComponent) {
+        ClientChatReceivedEvent event = new ClientChatReceivedEvent((byte) 1, chatComponent);
+        MinecraftForge.EVENT_BUS.post(event);
+        if (!event.isCanceled()) {
+            if (Minecraft.getMinecraft().thePlayer == null) {
+                offlineMessages.add(event.message);
+            } else {
+                Minecraft.getMinecraft().thePlayer.addChatMessage(event.message);
+            }
+        }
+    }
+
+    public void sendOfflineMessages() {
+        if (Minecraft.getMinecraft().thePlayer != null) {
+            Iterator<IChatComponent> offlineMessages = this.offlineMessages.iterator();
+            if (offlineMessages.hasNext()) {
+                Minecraft.getMinecraft().thePlayer.playSound("random.levelup", 0.4F, 0.8F);
+            }
+            while (offlineMessages.hasNext()) {
+                Minecraft.getMinecraft().thePlayer.addChatMessage(offlineMessages.next());
+                offlineMessages.remove();
+            }
+        }
+    }
+
+    public void sendAboveChatMessage(String... text) {
+        aboveChatMessage = text;
+        aboveChatMessageExpiration = Minecraft.getSystemTime() + DISPLAY_DURATION;
+    }
+
+    public String[] getAboveChatMessage() {
+        if (aboveChatMessageExpiration < Minecraft.getSystemTime()) {
+            // message expired
+            aboveChatMessage = null;
+        }
+        return aboveChatMessage;
+    }
+
+    public String cleanChatComponent(IChatComponent chatComponent) {
+        String component = IChatComponent.Serializer.componentToJson(chatComponent);
+        Matcher jsonMatcher = USELESS_JSON_CONTENT_PATTERN.matcher(component);
+        return jsonMatcher.replaceAll("");
+    }
+}
diff --git a/src/main/java/eu/olli/cowmoonication/util/Utils.java b/src/main/java/eu/olli/cowmoonication/util/Utils.java
index 60e2ea3..0b890f0 100644
--- a/src/main/java/eu/olli/cowmoonication/util/Utils.java
+++ b/src/main/java/eu/olli/cowmoonication/util/Utils.java
@@ -1,65 +1,14 @@
 package eu.olli.cowmoonication.util;
 
-import eu.olli.cowmoonication.Cowmoonication;
-import net.minecraft.client.Minecraft;
-import net.minecraft.util.ChatComponentText;
-import net.minecraft.util.IChatComponent;
-import net.minecraftforge.client.event.ClientChatReceivedEvent;
-import net.minecraftforge.common.MinecraftForge;
-
-import java.io.File;
-import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 
-public class Utils {
-    public static final Pattern VALID_USERNAME = Pattern.compile("^[\\w]{1,16}$");
-    private static final Pattern USELESS_JSON_CONTENT_PATTERN = Pattern.compile("\"[A-Za-z]+\":false,?");
-    private final Cowmoonication main;
-    private final File modsDir;
-    private String[] aboveChatMessage;
-    private long aboveChatMessageExpiration;
-
-    public Utils(Cowmoonication main, File sourceFile) {
-        this.main = main;
-        modsDir = sourceFile.getParentFile();
-    }
-
-    public void sendMessage(String text) {
-        sendMessage(new ChatComponentText(text));
-    }
-
-    public void sendMessage(IChatComponent chatComponent) {
-        ClientChatReceivedEvent event = new ClientChatReceivedEvent((byte) 1, chatComponent);
-        MinecraftForge.EVENT_BUS.post(event);
-        if (!event.isCanceled()) {
-            Minecraft.getMinecraft().thePlayer.addChatMessage(event.message);
-        }
-    }
+public final class Utils {
+    private static final Pattern VALID_USERNAME = Pattern.compile("^[\\w]{1,16}$");
 
-    public void sendAboveChatMessage(String... text) {
-        aboveChatMessage = text;
-        aboveChatMessageExpiration = Minecraft.getSystemTime() + 5000;
+    private Utils() {
     }
 
-    public String[] getAboveChatMessage() {
-        if (aboveChatMessageExpiration < Minecraft.getSystemTime()) {
-            // message expired
-            aboveChatMessage = null;
-        }
-        return aboveChatMessage;
-    }
-
-    public boolean isValidMcName(String username) {
+    public static boolean isValidMcName(String username) {
         return VALID_USERNAME.matcher(username).matches();
     }
-
-    public String cleanChatComponent(IChatComponent chatComponent) {
-        String component = IChatComponent.Serializer.componentToJson(chatComponent);
-        Matcher jsonMatcher = USELESS_JSON_CONTENT_PATTERN.matcher(component);
-        return jsonMatcher.replaceAll("");
-    }
-
-    public File getModsFolder() {
-        return modsDir;
-    }
 }
diff --git a/src/main/java/eu/olli/cowmoonication/util/VersionChecker.java b/src/main/java/eu/olli/cowmoonication/util/VersionChecker.java
index 5c29ae5..fa04c38 100644
--- a/src/main/java/eu/olli/cowmoonication/util/VersionChecker.java
+++ b/src/main/java/eu/olli/cowmoonication/util/VersionChecker.java
@@ -120,7 +120,7 @@ public class VersionChecker {
         }
 
         if (statusMsg != null) {
-            main.getUtils().sendMessage(statusMsg);
+            main.getChatHelper().sendMessage(statusMsg);
         }
     }