Call a code reviewer... but not for me!

.gitignore

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+# User-specific stuff
+.idea/
+
+*.iml
+*.ipr
+*.iws
+
+# IntelliJ
+out/
+
+# Compiled class file
+*.class
+
+# Log file
+*.log
+
+# BlueJ files
+*.ctxt
+
+# Package Files #
+*.jar
+*.war
+*.nar
+*.ear
+*.zip
+*.tar.gz
+*.rar
+
+# virtual machine crash logs, see http://www.java.com/en/download/help/error_hotspot.xml
+hs_err_pid*
+
+*~
+
+# temporary files which can be created if a process still has a handle open of a deleted file
+.fuse_hidden*
+
+# KDE directory preferences
+.directory
+
+# Linux trash folder which might appear on any partition or disk
+.Trash-*
+
+# .nfs files are created when an open file is removed but is still being accessed
+.nfs*
+
+# General
+.DS_Store
+.AppleDouble
+.LSOverride
+
+# Icon must end with two \r
+Icon
+
+# Thumbnails
+._*
+
+# Files that might appear in the root of a volume
+.DocumentRevisions-V100
+.fseventsd
+.Spotlight-V100
+.TemporaryItems
+.Trashes
+.VolumeIcon.icns
+.com.apple.timemachine.donotpresent
+
+# Directories potentially created on remote AFP share
+.AppleDB
+.AppleDesktop
+Network Trash Folder
+Temporary Items
+.apdisk
+
+# Windows thumbnail cache files
+Thumbs.db
+Thumbs.db:encryptable
+ehthumbs.db
+ehthumbs_vista.db
+
+# Dump file
+*.stackdump
+
+# Folder config file
+[Dd]esktop.ini
+
+# Recycle Bin used on file shares
+$RECYCLE.BIN/
+
+# Windows Installer files
+*.cab
+*.msi
+*.msix
+*.msm
+*.msp
+
+# Windows shortcuts
+*.lnk
+
+target/
+
+pom.xml.tag
+pom.xml.releaseBackup
+pom.xml.versionsBackup
+pom.xml.next
+
+release.properties
+dependency-reduced-pom.xml
+buildNumber.properties
+.mvn/timing.properties
+.mvn/wrapper/maven-wrapper.jar
+.flattened-pom.xml
+
+# Common working directory
+run/

pom.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>me.youhavetrouble</groupId>
+    <artifactId>JustChat</artifactId>
+    <version>1.0</version>
+    <packaging>jar</packaging>
+
+    <name>JustChat</name>
+
+    <description>Just a chat plugin.</description>
+    <properties>
+        <java.version>17</java.version>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    </properties>
+    <url>https://youhavetrouble.me</url>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <version>3.8.1</version>
+                <configuration>
+                    <source>${java.version}</source>
+                    <target>${java.version}</target>
+                </configuration>
+            </plugin>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-shade-plugin</artifactId>
+                <version>3.2.4</version>
+                <executions>
+                    <execution>
+                        <phase>package</phase>
+                        <goals>
+                            <goal>shade</goal>
+                        </goals>
+                        <configuration>
+                            <createDependencyReducedPom>false</createDependencyReducedPom>
+                        </configuration>
+                    </execution>
+                </executions>
+            </plugin>
+        </plugins>
+        <resources>
+            <resource>
+                <directory>src/main/resources</directory>
+                <filtering>true</filtering>
+            </resource>
+        </resources>
+    </build>
+
+    <repositories>
+        <repository>
+            <id>purpur</id>
+            <url>https://repo.purpurmc.org/snapshots</url>
+        </repository>
+        <repository>
+            <id>sonatype</id>
+            <url>https://oss.sonatype.org/content/groups/public/</url>
+        </repository>
+        <repository>
+            <id>placeholderapi</id>
+            <url>https://repo.extendedclip.com/content/repositories/placeholderapi/</url>
+        </repository>
+    </repositories>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.purpurmc.purpur</groupId>
+            <artifactId>purpur-api</artifactId>
+            <version>1.19.2-R0.1-SNAPSHOT</version>
+            <scope>provided</scope>
+        </dependency>
+        <dependency>
+            <groupId>me.clip</groupId>
+            <artifactId>placeholderapi</artifactId>
+            <version>2.11.2</version>
+            <scope>provided</scope>
+        </dependency>
+    </dependencies>
+</project>

src/main/java/me/youhavetrouble/justchat/JustChat.java

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+package me.youhavetrouble.justchat;
+
+import net.kyori.adventure.text.minimessage.MiniMessage;
+import org.bukkit.configuration.file.FileConfiguration;
+import org.bukkit.plugin.java.JavaPlugin;
+
+public final class JustChat extends JavaPlugin {
+
+    private static String chatFormat;
+
+    private static final MiniMessage miniMessage = MiniMessage.miniMessage();
+
+    @Override
+    public void onEnable() {
+        reloadPluginConfig();
+        getServer().getPluginManager().registerEvents(new JustChatListener(), this);
+    }
+
+    public void reloadPluginConfig() {
+        saveDefaultConfig();
+        FileConfiguration config = getConfig();
+        chatFormat = config.getString("format", "<%player_displayname%> %message%");
+    }
+
+    public static String getChatFormat() {
+        return chatFormat;
+    }
+
+    public static MiniMessage getMiniMessage() {
+        return miniMessage;
+    }
+}

src/main/java/me/youhavetrouble/justchat/JustChatListener.java

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+package me.youhavetrouble.justchat;
+
+import io.papermc.paper.event.player.AsyncChatCommandDecorateEvent;
+import io.papermc.paper.event.player.AsyncChatDecorateEvent;
+import me.clip.placeholderapi.PlaceholderAPI;
+import net.kyori.adventure.text.Component;
+import net.kyori.adventure.text.TextReplacementConfig;
+import net.kyori.adventure.text.format.TextDecoration;
+import net.kyori.adventure.text.minimessage.MiniMessage;
+import net.kyori.adventure.text.minimessage.tag.resolver.TagResolver;
+import net.kyori.adventure.text.minimessage.tag.standard.StandardTags;
+import net.kyori.adventure.text.serializer.plain.PlainTextComponentSerializer;
+import org.bukkit.entity.Player;
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.EventPriority;
+import org.bukkit.event.Listener;
+import org.bukkit.event.player.AsyncPlayerChatEvent;
+import org.bukkit.event.player.AsyncPlayerChatPreviewEvent;
+import org.bukkit.permissions.Permission;
+
+
+import java.util.HashMap;
+
+public class JustChatListener implements Listener {
+
+    private final HashMap<Permission, TagResolver> formattingPerms = new HashMap<>();
+    private final PlainTextComponentSerializer plainTextComponentSerializer = PlainTextComponentSerializer.plainText();
+
+    public JustChatListener() {
+        formattingPerms.put(new Permission("justchat.color"), StandardTags.color());
+        formattingPerms.put(new Permission("justchat.bold"), StandardTags.decorations(TextDecoration.BOLD));
+        formattingPerms.put(new Permission("justchat.italic"), StandardTags.decorations(TextDecoration.ITALIC));
+        formattingPerms.put(new Permission("justchat.underlined"), StandardTags.decorations(TextDecoration.UNDERLINED));
+        formattingPerms.put(new Permission("justchat.strikethrough"), StandardTags.decorations(TextDecoration.STRIKETHROUGH));
+        formattingPerms.put(new Permission("justchat.obfuscated"), StandardTags.decorations(TextDecoration.OBFUSCATED));
+        formattingPerms.put(new Permission("justchat.gradient"), StandardTags.gradient());
+        formattingPerms.put(new Permission("justchat.font"), StandardTags.font());
+        formattingPerms.put(new Permission("justchat.rainbow"), StandardTags.rainbow());
+        formattingPerms.put(new Permission("justchat.hover"), StandardTags.hoverEvent());
+        formattingPerms.put(new Permission("justchat.click"), StandardTags.clickEvent());
+    }
+
+    @EventHandler(priority = EventPriority.NORMAL, ignoreCancelled = true)
+    public void onjustChatDecorate(AsyncChatDecorateEvent event) {
+
+        if (event.player() == null) return;
+
+        String format = JustChat.getChatFormat();
+
+        format = PlaceholderAPI.setPlaceholders(event.player(), format);
+        Component formatComponent = JustChat.getMiniMessage().deserialize(format);
+
+        Component message = parseMessageContent(event.player(), plainTextComponentSerializer.serialize(event.originalMessage()));
+
+        event.result(formatComponent.replaceText(TextReplacementConfig.builder().match("%message%").replacement(message).build()));
+    }
+
+    @EventHandler
+    public void onAsyncChatPreviewEvent(AsyncPlayerChatPreviewEvent event) {
+        event.setFormat("%2$s");
+    }
+
+    @EventHandler
+    public void onAsyncChatEvent(AsyncPlayerChatEvent event) {
+        event.setFormat("%2$s");
+    }
+
+    @EventHandler(priority = EventPriority.NORMAL, ignoreCancelled = true)
+    public void onjustChatCommandDecorate(AsyncChatCommandDecorateEvent event) {
+        if (event.player() == null) return;
+        event.result(parseMessageContent(event.player(), plainTextComponentSerializer.serialize(event.originalMessage())));
+    }
+
+    private Component parseMessageContent(Player player, String rawMessage) {
+        TagResolver.Builder tagResolver = TagResolver.builder();
+
+        formattingPerms.forEach((perm, resolver) -> {
+            if (player.hasPermission(perm)) {
+                tagResolver.resolver(resolver);
+            }
+        });
+
+        MiniMessage messageParser = MiniMessage.builder().tags(tagResolver.build()).build();
+        return messageParser.deserialize(rawMessage);
+
+    }
+
+}

src/main/resources/config.yml

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+format: "<%player_displayname%> %message%"

src/main/resources/plugin.yml

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+name: '${project.name}'
+version: '${project.version}'
+main: me.youhavetrouble.justchat.JustChat
+api-version: 1.19
+depend: [ PlaceholderAPI ]
+authors: [ YouHaveTrouble ]
+description: '${project.description}'
+website: https://youhavetrouble.me
+permissions:
+  justchat.color:
+    description: "Allows for usage of basic color tags"
+    default: op
+  justchat.bold:
+    description: "Allows for usage of <b>"
+    default: op
+  justchat.italic:
+    description: "Allows for usage of <i> tag"
+    default: op
+  justchat.underlined:
+    description: "Allows for usage of <u> tag"
+    default: op
+  justchat.strikethrough:
+    description: "Allows for usage of <st> tag"
+    default: op
+  justchat.obfuscated:
+    description: "Allows for usage of <obf> tag"
+    default: op
+  justchat.gradient:
+    description: "Allows for usage of <gradient> tag"
+    default: op
+  justchat.font:
+    description: "Allows for usage of <font> tag"
+    default: op
+  justchat.rainbow:
+    description: "Allows for usage of <rainbow> tag"
+    default: op
+  justchat.hover:
+    description: "Allows for usage of <hover> tag"
+    default: op
+  justchat.click:
+    description: "Allows for usage of <click> tag"
+    default: op
+  justchat.format:
+    description: "Allows for usage of <b>, <i>, <u> and <st> tags"
+    children:
+      justchat.bold: true
+      justchat.italic: true
+      justchat.underlined: true
+      justchat.strikethrough: true
+  justchat.colors:
+    description: "Allows for usage of basic color tags, <gradient> and <rainbow> tags"
+    children:
+      justchat.color: true
+      justchat.gradient: true
+      justchat.rainbow: true
+  justchat.actions:
+    description: "Allows for usage of <click> and <hover> tags"
+    children:
+      justchat.click: true
+      justchat.hover: true