init commit w/ v0.1 release

.gitignore

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+target/
+test_server/

build.sh

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+mvn clean package dependency:copy -DskipTests -DmcVersion=1.21 -DoutputDirectory=test_server/plugins
+cd test_server 
+java -jar server.jar -nogui 
+cd ../

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>
+
+    <properties>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <maven.compiler.source>21</maven.compiler.source>
+        <maven.compiler.target>21</maven.compiler.target>
+        <mcVersion>1.21</mcVersion> <!-- default mc version -->
+    </properties>
+
+    <groupId>rip.iwakura</groupId>
+    <artifactId>CivilCore</artifactId>
+    <version>0.1a</version>
+
+    <repositories>
+        <repository>
+            <id>spigot-repo</id>
+            <url>https://hub.spigotmc.org/nexus/content/repositories/snapshots/</url>
+        </repository>
+        <repository>
+            <id>papermc</id>
+            <url>https://repo.papermc.io/repository/maven-public/</url>
+        </repository>
+    </repositories>
+
+    <dependencies>
+        <dependency>
+          <groupId>org.postgresql</groupId>
+          <artifactId>postgresql</artifactId>
+          <version>42.7.3</version>
+          <scope>compile</scope>
+        </dependency>
+        <!-- spigot api -->
+        <dependency>
+            <groupId>org.spigotmc</groupId>
+            <artifactId>spigot-api</artifactId>
+            <version>${mcVersion}-R0.1-SNAPSHOT</version>
+        </dependency>
+        <!-- plugin annotations -->
+        <dependency>
+            <groupId>org.spigotmc</groupId>
+            <artifactId>plugin-annotations</artifactId>
+            <version>1.2.3-SNAPSHOT</version>
+        </dependency>
+    </dependencies>
+
+    <build>
+      <plugins>
+        <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-shade-plugin</artifactId>
+                <version>3.1.0</version>
+                <executions>
+                    <execution>
+                        <phase>package</phase>
+                        <goals>
+                            <goal>shade</goal>
+                        </goals>
+                        <configuration>
+                            <createDependencyReducedPom>false</createDependencyReducedPom>
+                        </configuration>
+                    </execution>
+                </executions>
+            </plugin>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-surefire-plugin</artifactId>
+                <version>2.22.1</version>
+            </plugin>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-dependency-plugin</artifactId>
+                <version>3.5.0</version>
+                <configuration>
+                    <artifactItems>
+                        <artifactItem>
+                            <groupId>${project.groupId}</groupId>
+                            <artifactId>${project.artifactId}</artifactId>
+                            <version>${project.version}</version>
+                            <overWrite>true</overWrite>
+                        </artifactItem>
+                      </artifactItems>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
+</project>

src/main/java/rip/iwakura/civilcore/CivilCore.java

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+package rip.iwakura.civilcore;
+
+import java.sql.SQLException;
+import java.util.ArrayList;
+
+import org.bukkit.Bukkit;
+import org.bukkit.plugin.java.JavaPlugin;
+
+import net.md_5.bungee.api.ChatColor;
+import rip.iwakura.civilcore.commands.TeamCommand;
+
+public class CivilCore extends JavaPlugin {
+  public Database db = new Database();
+
+  @Override
+  public void onEnable() {
+    this.saveDefaultConfig();
+
+    try {
+		  Class.forName("org.postgresql.Driver");
+	  } catch (ClassNotFoundException e) {
+		  e.printStackTrace();
+	  }
+
+    try {
+		  db.connect(this.getConfig().getString("database.url"));
+	  } catch (SQLException e) {
+		  e.printStackTrace();
+	  }
+    getServer().getPluginManager().registerEvents(new PlayerHandler(this), this);
+    this.getCommand("team").setExecutor(new TeamCommand(this));
+  }
+}

src/main/java/rip/iwakura/civilcore/Database.java

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+package rip.iwakura.civilcore;
+
+import java.sql.Connection;
+import java.sql.DriverManager;
+import java.sql.PreparedStatement;
+import java.sql.ResultSet;
+import java.sql.SQLException;
+import java.sql.Statement;
+import java.sql.Types;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.stream.Collectors;
+
+import org.bukkit.Bukkit;
+
+import rip.iwakura.civilcore.types.DbPlayer;
+import rip.iwakura.civilcore.types.Team;
+
+public class Database {
+  public ArrayList<DbPlayer> players = new ArrayList<DbPlayer>();
+  public ArrayList<Team> teams = new ArrayList<Team>();
+
+  private Connection c = null;
+
+  public boolean tableExists(String table) throws SQLException {
+    if (c.getMetaData().getTables(null, null, table, null).next()) {
+      return true;
+    }
+    return false;
+  }
+
+  public DbPlayer getPlayerByName(String name) {
+    List<DbPlayer> filtered = players.stream().filter(
+        s -> s.name.equals(name))
+        .collect(Collectors.toList());
+    if (filtered.isEmpty()) return null;
+    return filtered.getFirst();
+  }
+
+  public Team getTeamByName(String name) {
+    List<Team> filtered = teams.stream().filter(
+        s -> s.name.equals(name))
+        .collect(Collectors.toList());
+    if (filtered.isEmpty()) return null;
+    return filtered.getFirst();
+  }
+
+  public void update(String sql) throws SQLException {
+    Statement stmt = c.createStatement();
+    stmt.executeUpdate(sql);
+    stmt.close();
+  }
+  
+  public void addPlayerToTeam(Team team, DbPlayer player) throws SQLException {
+    String sql = "UPDATE players SET TEAM_ID = ? WHERE name = ?; ";
+    PreparedStatement stmt = c.prepareStatement(sql);
+
+    stmt.setInt(1, team.id);
+    stmt.setString(2, player.name);
+
+    stmt.executeUpdate();
+
+    stmt.close();
+
+    refreshPlayers();
+  }
+
+  public void refreshTeams() throws SQLException {
+    teams.clear();
+    Statement stmt = c.createStatement();
+    ResultSet rs = stmt.executeQuery("SELECT * FROM teams;");
+
+    while (rs.next()) {
+      String name = rs.getString("name");
+      String prefix = rs.getString("prefix");
+      int id = rs.getInt("team_id"); 
+
+      Team team = new Team(name,prefix,id);
+      teams.add(team);
+    }
+    stmt.close();
+    rs.close();
+  }
+
+  public void refreshPlayers() throws SQLException {
+    players.clear();
+    String sql = "SELECT players.NAME AS player_name, teams.NAME AS team_name, teams.TEAM_ID as t_team_id, teams.PREFIX AS team_prefix " +
+                 "FROM players LEFT JOIN teams ON players.TEAM_ID = teams.TEAM_ID";
+
+    Statement stmt = c.createStatement();
+    ResultSet rs = stmt.executeQuery(sql);
+
+
+    while (rs.next()) { 
+      String p_name = rs.getString("player_name");
+      String t_name = rs.getString("team_name");
+      int t_id = rs.getInt("t_team_id");
+      String t_prefix = rs.getString("team_prefix");
+
+      Team team = new Team(t_name, t_prefix, t_id);
+      DbPlayer player = new DbPlayer(p_name, team);
+      players.add(player);
+    }
+    stmt.close();
+    rs.close();
+  }
+
+  public void insertPlayer(DbPlayer player) throws SQLException {
+    String sql = "INSERT INTO players (NAME,TEAM_ID) " +
+                 "VALUES(?, ?);";
+    PreparedStatement stmt = c.prepareStatement(sql);
+
+    stmt.setString(1, player.name);
+    if(player.team != null) {
+      stmt.setInt(2, player.team.id);
+    } else {
+      stmt.setNull(2, Types.NULL);
+    }
+
+    stmt.executeUpdate();
+
+    stmt.close();
+
+    refreshPlayers();
+  }
+
+  public void insertTeam(Team team) throws SQLException {
+    String sql = "INSERT INTO teams (NAME,PREFIX) " +
+                 "VALUES(?, ?);";
+    PreparedStatement stmt = c.prepareStatement(sql);
+
+    stmt.setString(1, team.name);
+    stmt.setString(2, team.prefix);
+
+    stmt.executeUpdate();
+
+    stmt.close();
+
+    refreshTeams();
+  }
+
+
+
+  public void connect(String url) throws SQLException {
+    try {
+      Class.forName("org.postgresql.Driver");
+      c = DriverManager.getConnection(url);
+    } catch (Exception e) {
+      e.printStackTrace();
+      Bukkit.getLogger().info("Failed to connect to the database.");
+      Bukkit.getServer().getPluginManager().disablePlugin(new CivilCore());
+      return;
+    }
+    Bukkit.getLogger().info("Connected to the database.");
+    if (!tableExists("teams")) {
+      String sql = "CREATE TABLE teams " +
+                   "(TEAM_ID SERIAL PRIMARY KEY," +
+                   " NAME           TEXT NOT NULL," +
+                   " PREFIX         TEXT NOT NULL)";
+      update(sql);
+    }
+    if (!tableExists("players")) {
+      String sql = "CREATE TABLE players " +
+                   "(NAME TEXT PRIMARY KEY NOT NULL," +
+                   " TEAM_ID INT, " +
+                   " CONSTRAINT TEAM" +
+                   "     FOREIGN KEY(TEAM_ID)" +
+                   "     REFERENCES teams(TEAM_ID))";
+      update(sql);
+    }
+
+    refreshTeams();
+    refreshPlayers();
+
+    Bukkit.getLogger().info("Database has been initialized.");
+  }
+}

src/main/java/rip/iwakura/civilcore/PlayerHandler.java

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+package rip.iwakura.civilcore;
+
+import java.sql.SQLException;
+
+import org.bukkit.Bukkit;
+import org.bukkit.entity.Player;
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.Listener;
+import org.bukkit.event.player.AsyncPlayerChatEvent;
+import org.bukkit.event.player.PlayerJoinEvent;
+
+import net.md_5.bungee.api.ChatColor;
+import rip.iwakura.civilcore.types.DbPlayer;
+
+public class PlayerHandler implements Listener {
+
+  private CivilCore civilCore = null;
+
+  public PlayerHandler(CivilCore civilCore) {
+    this.civilCore = civilCore;
+  }
+
+  @EventHandler
+  public void PlayerChat(AsyncPlayerChatEvent e) {
+    e.setCancelled(true);
+
+    Player p = e.getPlayer();
+    String player_name = p.getName();
+
+    DbPlayer dbPlayer = civilCore.db.getPlayerByName(player_name);
+    String prefix = dbPlayer.team.prefix == null ? "" : ChatColor.translateAlternateColorCodes('&', dbPlayer.team.prefix) + " ";
+
+    Bukkit.broadcastMessage(String.format("%s%s: %s", prefix, player_name, e.getMessage()));
+  }
+  @EventHandler
+  public void PlayerJoinEvent(PlayerJoinEvent e) {
+    Player p = e.getPlayer();
+    String player_name = p.getName();
+    if(civilCore.db.getPlayerByName(player_name) == null) {
+      DbPlayer dbPlayer = new DbPlayer(p.getName(), null);
+      try {
+		    civilCore.db.insertPlayer(dbPlayer);
+	    } catch (SQLException e1) {
+		    e1.printStackTrace();
+	    }
+    }
+
+  }
+}

src/main/java/rip/iwakura/civilcore/Utils.java

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+package rip.iwakura.civilcore;
+
+import java.util.ArrayList;
+
+import org.bukkit.Bukkit;
+import org.bukkit.command.CommandSender;
+
+import net.md_5.bungee.api.ChatColor;
+
+public class Utils {
+  private static String buffer = "";
+
+  private static void finishBuffer(ArrayList<String> args) {
+    args.add(buffer);
+    buffer = "";
+  }
+
+  public static void exceptionHandler(Exception e, CommandSender sender) {
+    sender.sendMessage(ChatColor.RED + "Failed to execute command: " + e.getMessage());
+  }
+  
+  public static ArrayList<String> parser(String[] original_args) {
+    ArrayList<String> args = new ArrayList<String>();
+
+    String joined_args = String.join(" ", original_args);
+
+    boolean inColon = false;
+    char lastCharacter = ' ';
+
+    for (int i = 0; i < joined_args.length(); i++) {
+        char currentCharacter = joined_args.charAt(i);
+
+        switch (currentCharacter) {
+          case '"':
+            if (!inColon) {
+              inColon = true;
+            } else {
+              inColon = false;
+              finishBuffer(args);
+            }
+            break;
+
+          case ' ':
+            if (!inColon && lastCharacter != '"') {
+              finishBuffer(args);
+              break;
+            }
+
+            if (lastCharacter != '"') buffer += " ";
+            break;
+
+          default: 
+            buffer+=currentCharacter;
+            if (i == joined_args.length() - 1) {
+              finishBuffer(args);
+            }
+            break;
+        }
+        lastCharacter = currentCharacter;
+    }
+    if (inColon) return null;
+    return args;
+  }
+}

src/main/java/rip/iwakura/civilcore/commands/TeamCommand.java

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+package rip.iwakura.civilcore.commands;
+
+import java.sql.SQLException;
+
+import org.bukkit.Bukkit;
+import org.bukkit.command.Command;
+import org.bukkit.command.CommandExecutor;
+import org.bukkit.command.CommandSender;
+
+import net.md_5.bungee.api.ChatColor;
+import rip.iwakura.civilcore.Utils;
+import rip.iwakura.civilcore.CivilCore;
+import rip.iwakura.civilcore.types.DbPlayer;
+import rip.iwakura.civilcore.types.Team;
+
+public class TeamCommand implements CommandExecutor {
+  private CivilCore civilCore = null;
+
+  public TeamCommand(CivilCore civilCore) {
+    this.civilCore = civilCore;
+  }
+
+  @Override
+  public boolean onCommand(CommandSender sender, Command command, String label, String[] args) {
+    args = Utils.parser(args).toArray(new String[args.length]);
+
+    if(args.length == 0) {
+      sender.sendMessage(ChatColor.RED + "Usage: /team <create | destroy | add | remove | list> [options]");
+      return true;
+    };
+
+    switch (args[0]) {
+      case "list":
+        if (args.length < 2) {
+          sender.sendMessage(ChatColor.RED + "Usage: /team list <teams | players>");
+          return true;
+        }
+
+        switch (args[1]) {
+          case "players":
+            for (DbPlayer dbPlayer : civilCore.db.players) { 
+              if (dbPlayer.team != null) sender.sendMessage(ChatColor.GREEN + String.format("%s belonging to team %s", dbPlayer.name, dbPlayer.team.name));
+              if (dbPlayer.team == null) sender.sendMessage(ChatColor.GREEN + String.format("%s does not belong to any team.", dbPlayer.name));
+            }
+            return true;
+          case "teams":
+            for (Team team : civilCore.db.teams) {
+              sender.sendMessage(ChatColor.GREEN + String.format("%s with prefix %s", team.name, ChatColor.translateAlternateColorCodes('&', "&r" + team.prefix)));
+            }
+            return true;
+          default:
+            sender.sendMessage(ChatColor.RED + "Usage: /team list <teams | players>");
+            return true;
+        }
+      case "create":
+        if(args.length < 3) {
+          sender.sendMessage(ChatColor.RED + "Usage: /team create <name> <prefix>");
+          return true;
+        };
+
+        Team team = new Team(args[1], args[2], null);
+
+			  try {
+				  civilCore.db.insertTeam(team);
+          sender.sendMessage(ChatColor.GREEN + String.format("Successfully made team %s with prefix %s", args[1], ChatColor.translateAlternateColorCodes('&', "&r" + args[2])));
+			  } catch (Exception e) {
+				  e.printStackTrace();
+          Utils.exceptionHandler(e, sender);
+			  }
+
+        break;
+      case "add":
+        if(args.length < 3) {
+          sender.sendMessage(ChatColor.RED + "Usage: /team add <player> <team name>");
+          return true;
+        };
+
+        Team found_team = civilCore.db.getTeamByName(args[2]);
+        DbPlayer dbPlayer = civilCore.db.getPlayerByName(args[1]);
+
+        if (found_team == null) {
+          sender.sendMessage(ChatColor.RED + "The team you are referencing does not exist.");
+          return true;
+        }
+
+        String success_msg = ChatColor.GREEN + String.format("Successfully added %s to team %s.", args[1], args[2]);
+
+        if(dbPlayer == null) {
+          dbPlayer = new DbPlayer(args[1], found_team);
+          try {
+			      civilCore.db.insertPlayer(dbPlayer);
+            sender.sendMessage(success_msg);
+		      } catch (Exception e) {
+			      e.printStackTrace();
+            Utils.exceptionHandler(e, sender);
+		      }
+          return true;
+        }
+
+			  try {
+				  civilCore.db.addPlayerToTeam(found_team, dbPlayer);
+          sender.sendMessage(success_msg);
+			  } catch (Exception e) {
+				  e.printStackTrace();
+          Utils.exceptionHandler(e, sender);
+			  }
+        break;
+    }
+    return true;
+  }
+}

src/main/java/rip/iwakura/civilcore/types/DbPlayer.java

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+package rip.iwakura.civilcore.types;
+
+/*
+ * Player Type 
+ * @String name
+ * @Team team
+ */ 
+public class DbPlayer {
+
+  public Team team = null;
+  public String name = null;
+
+  public DbPlayer(String name, Team team) {
+    this.name = name;
+    this.team = team;
+  }
+}

src/main/java/rip/iwakura/civilcore/types/Team.java

@@ -0,0 +1,19 @@
+package rip.iwakura.civilcore.types;
+
+/*
+ * Team Type 
+ * @string name
+ * @string prefix
+ */ 
+public class Team {
+
+  public String prefix = null;
+  public String name = null;
+  public Integer id = null;
+
+  public Team(String name, String prefix, Integer id) {
+    this.prefix = prefix;
+    this.name = name;
+    this.id = id;
+  }
+}

src/main/resources/plugin.yml

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+main: rip.iwakura.civilcore.CivilCore
+name: CivilCore 
+version: 0.1
+description: Core plugin for the CivilWars SMP
+api-version: 1.21
+author: hex
+commands:
+  team:
+    description: Team Manager
+    usage: /<command> <create|destroy|add|remove>