Pretty much finished

src/main/java/mc/unraveled/reforged/banning/BanManager.java

@@ -10,14 +10,14 @@ import java.util.HashSet;
 import java.util.Set;
 import java.util.stream.Collectors;
 
-public class LocalizedBanList implements Locker, Baker {
+public final class BanManager implements Locker, Baker {
     private final Traverse plugin;
 
     private Set<AbstractBan> storedBans; // This should only be reassigned by the baker.
     private boolean baked = false; // This should only be reassigned by the baker.
 
     @SneakyThrows
-    public LocalizedBanList(Traverse plugin) {
+    public BanManager(Traverse plugin) {
         this.storedBans = new HashSet<>();
         this.plugin = plugin;
 

src/main/java/mc/unraveled/reforged/data/DataManager.java

@@ -0,0 +1,101 @@
+package mc.unraveled.reforged.data;
+
+import lombok.SneakyThrows;
+import mc.unraveled.reforged.api.Baker;
+import mc.unraveled.reforged.api.Locker;
+import mc.unraveled.reforged.plugin.Traverse;
+import mc.unraveled.reforged.storage.DBUser;
+import org.jetbrains.annotations.Nullable;
+
+import java.util.HashSet;
+import java.util.Set;
+import java.util.UUID;
+import java.util.stream.Collectors;
+
+public final class DataManager implements Baker, Locker {
+    private final Traverse plugin;
+    private Set<PlayerData> playerDataCache = new HashSet<>(); // Should only be set by the baker.
+    private boolean baked = false; // Should only be set by the baker.
+
+    public DataManager(Traverse plugin) {
+        this.plugin = plugin;
+        DBUser user = new DBUser(plugin.getSQLManager().establish());
+        user.createTable();
+        playerDataCache.addAll(user.all());
+        user.close();
+        bake();
+    }
+
+    @Nullable
+    public PlayerData getPlayerData(String playerName) {
+        return playerDataCache.stream()
+                .filter(data -> data.getUserName().equals(playerName))
+                .findFirst()
+                .orElse(null);
+    }
+
+    @Nullable
+    public PlayerData getPlayerData(UUID uuid) {
+        return playerDataCache.stream()
+                .filter(data -> data.getUuid().equals(uuid))
+                .findFirst()
+                .orElse(null);
+    }
+
+    public void addPlayerData(PlayerData data) {
+        if (baked) throw new IllegalStateException("Cannot add player data while the data manager is baked.");
+
+        playerDataCache.add(data);
+    }
+
+    public void removePlayerData(PlayerData data) {
+        if (baked) throw new IllegalStateException("Cannot remove player data while the data manager is baked.");
+
+        playerDataCache.remove(data);
+    }
+
+    public void removePlayerData(UUID uuid) {
+        if (baked) throw new IllegalStateException("Cannot remove player data while the data manager is baked.");
+
+        playerDataCache.removeIf(data -> data.getUuid().equals(uuid));
+    }
+
+    public void removePlayerData(String playerName) {
+        if (baked) throw new IllegalStateException("Cannot remove player data while the data manager is baked.");
+
+        playerDataCache.removeIf(data -> data.getUserName().equals(playerName));
+    }
+
+    public void saveData(PlayerData data) {
+        DBUser user = new DBUser(plugin.getSQLManager().establish());
+        user.insert(data);
+    }
+
+    @SneakyThrows
+    @Override
+    public void bake() {
+        if (baked) return;
+
+        synchronized (lock()) {
+            this.playerDataCache = playerDataCache.stream().collect(Collectors.toUnmodifiableSet());
+            lock().wait(1000);
+        }
+
+        this.baked = true;
+        lock().notify();
+    }
+
+    @SneakyThrows
+    @Override
+    public void unbake() {
+        if (!baked) return;
+
+        synchronized (lock()) {
+            this.playerDataCache = new HashSet<>(playerDataCache);
+            lock().wait(1000);
+        }
+
+        this.baked = false;
+        lock().notify();
+    }
+}

src/main/java/mc/unraveled/reforged/data/PlayerData.java

@@ -0,0 +1,19 @@
+package mc.unraveled.reforged.data;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import mc.unraveled.reforged.permission.Rank;
+
+import java.util.Date;
+import java.util.UUID;
+
+@Data
+@AllArgsConstructor
+public class PlayerData {
+    private UUID uuid;
+    private String userName;
+    private Rank rank;
+    private long playtime;
+    private int coins;
+    private Date lastLogin;
+}

src/main/java/mc/unraveled/reforged/data/PlayerDataListener.java

@@ -0,0 +1,33 @@
+package mc.unraveled.reforged.data;
+
+import mc.unraveled.reforged.permission.Rank;
+import mc.unraveled.reforged.plugin.Traverse;
+import org.bukkit.entity.Player;
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.Listener;
+import org.bukkit.event.player.PlayerJoinEvent;
+
+import java.time.Instant;
+import java.util.Date;
+
+public class PlayerDataListener implements Listener {
+    private final Traverse plugin;
+
+    public PlayerDataListener(Traverse plugin) {
+        plugin.getServer().getPluginManager().registerEvents(this, plugin);
+        this.plugin = plugin;
+    }
+
+    @EventHandler
+    public void onPlayerJoin(PlayerJoinEvent event) {
+        Player player = event.getPlayer();
+        PlayerData data = plugin.getDataManager().getPlayerData(player.getUniqueId());
+
+        if (data == null) {
+            data = new PlayerData(player.getUniqueId(), player.getName(), Rank.NON_OP, 0L, 0, Date.from(Instant.now()));
+            plugin.getDataManager().addPlayerData(data);
+        }
+
+        data.setLastLogin(Date.from(Instant.now()));
+    }
+}

src/main/java/mc/unraveled/reforged/permission/Group.java

@@ -0,0 +1,63 @@
+package mc.unraveled.reforged.permission;
+
+import lombok.Data;
+import mc.unraveled.reforged.api.Baker;
+import org.bukkit.OfflinePlayer;
+import org.bukkit.entity.Player;
+
+import java.util.HashSet;
+import java.util.Set;
+import java.util.stream.Collectors;
+
+@Data
+public class Group implements Baker {
+    private final Rank rank;
+    private Set<String> permissions = new HashSet<>();
+    private Set<OfflinePlayer> players = new HashSet<>();
+    private boolean baked = false;
+
+    public Group(Rank rank) {
+        this.rank = rank;
+    }
+
+    public void insert(String permission) {
+        if (baked) throw new IllegalStateException("Cannot modify a baked group.");
+        permissions.add(permission);
+    }
+
+    public void insert(OfflinePlayer player) {
+        if (baked) throw new IllegalStateException("Cannot modify a baked group.");
+        players.add(player);
+    }
+
+    public void eject(String permission) {
+        if (baked) throw new IllegalStateException("Cannot modify a baked group.");
+        permissions.remove(permission);
+    }
+
+    public void eject(OfflinePlayer player) {
+        if (baked) throw new IllegalStateException("Cannot modify a baked group.");
+        players.remove(player);
+    }
+
+    @Override
+    public void bake() {
+        if (baked) return;
+
+        this.permissions = permissions.stream().collect(Collectors.toUnmodifiableSet());
+        this.players = players.stream().collect(Collectors.toUnmodifiableSet());
+
+        this.baked = true;
+    }
+
+    @Override
+    public void unbake() {
+        if (!baked) return;
+
+        this.permissions = new HashSet<>(permissions);
+        this.players = new HashSet<>(players);
+
+        this.baked = false;
+
+    }
+}

src/main/java/mc/unraveled/reforged/permission/RankManager.java

@@ -0,0 +1,104 @@
+package mc.unraveled.reforged.permission;
+
+import lombok.Getter;
+import mc.unraveled.reforged.api.Baker;
+import mc.unraveled.reforged.api.Locker;
+import mc.unraveled.reforged.plugin.Traverse;
+import mc.unraveled.reforged.storage.DBGroup;
+import mc.unraveled.reforged.util.Tuple;
+import org.bukkit.OfflinePlayer;
+import org.jetbrains.annotations.NotNull;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+
+public class RankManager implements Baker, Locker {
+    @Getter
+    private final Traverse plugin;
+    private List<Tuple<Rank, List<OfflinePlayer>, List<String>>> rankQueue = new ArrayList<>();
+    private List<Group> bakedGroups = new ArrayList<>();
+    private boolean baked = false;
+
+    public RankManager(@NotNull Traverse plugin) {
+        this.plugin = plugin;
+
+        lock().notify();
+
+        DBGroup groupHandler = new DBGroup(plugin.getSQLManager().establish());
+        Arrays.stream(Rank.values()).forEach(groupHandler::createTable);
+        Rank[] ranks = Rank.values();
+
+        for (Rank rank : ranks) {
+            Tuple<Rank, List<OfflinePlayer>, List<String>> rankTuple;
+            List<OfflinePlayer> playerList;
+            List<String> permissionList;
+
+            playerList = groupHandler.getPlayers(rank);
+            permissionList = groupHandler.getPermissions(rank);
+
+            rankTuple = new Tuple<>(rank, playerList, permissionList);
+            rankQueue.add(rankTuple);
+        }
+
+        groupHandler.close();
+        bake();
+    }
+
+    public void insert(Rank rank, List<OfflinePlayer> player, List<String> args) {
+        rankQueue.add(new Tuple<>(rank, player, args));
+    }
+
+    public void eject(Rank rank, List<OfflinePlayer> player, List<String> args) {
+        rankQueue.remove(new Tuple<>(rank, player, args));
+    }
+
+    public void insertPermission(Rank rank, String permission) {
+        rankQueue.stream()
+                .filter(tuple -> tuple.getFirst().equals(rank))
+                .forEach(tuple -> tuple.getThird().add(permission));
+    }
+
+    public void ejectPermission(Rank rank, String permission) {
+        rankQueue.stream()
+                .filter(tuple -> tuple.getFirst().equals(rank))
+                .forEach(tuple -> tuple.getThird().remove(permission));
+    }
+
+    @Override
+    public void bake() {
+        if (baked) return;
+
+        synchronized (lock()) {
+            rankQueue.forEach(tuple -> {
+                Rank rank = tuple.getFirst();
+                List<OfflinePlayer> players = tuple.getSecond();
+                List<String> permissions = tuple.getThird();
+
+                Group group = new Group(rank);
+                for (OfflinePlayer p : players) {
+                    group.insert(p);
+                }
+                for (String arg : permissions) {
+                    group.insert(arg);
+                }
+                bakedGroups.add(group);
+            });
+        }
+
+        baked = true;
+        lock().notify();
+    }
+
+    @Override
+    public void unbake() {
+        if (!baked) return;
+
+        synchronized (lock()) {
+            bakedGroups.clear();
+        }
+
+        baked = false;
+        lock().notify();
+    }
+}

src/main/java/mc/unraveled/reforged/plugin/Traverse.java

@@ -1,37 +1,41 @@
 package mc.unraveled.reforged.plugin;
 
+import lombok.Getter;
 import lombok.SneakyThrows;
-import mc.unraveled.reforged.permission.Rank;
+import mc.unraveled.reforged.banning.BanManager;
+import mc.unraveled.reforged.command.base.CommandLoader;
+import mc.unraveled.reforged.data.DataManager;
+import mc.unraveled.reforged.permission.RankManager;
 import mc.unraveled.reforged.storage.DBConnectionHandler;
-import mc.unraveled.reforged.storage.DBGroup;
 import mc.unraveled.reforged.storage.DBProperties;
 import org.bukkit.plugin.java.JavaPlugin;
 
-import java.util.Arrays;
-
 public final class Traverse extends JavaPlugin {
 
-    private DBConnectionHandler handler;
+    // Primary variable declaration.
+    @Getter
+    private DBConnectionHandler SQLManager;
+    @Getter
+    private DataManager dataManager;
+    @Getter
+    private CommandLoader commandLoader;
+    @Getter
+    private BanManager banManager;
+    @Getter
+    private RankManager rankManager;
 
     @Override
+    @SneakyThrows
     public void onEnable() {
-        initDatabaseGroups();
+        this.SQLManager = new DBConnectionHandler(new DBProperties("db.properties"));
+        this.dataManager = new DataManager(this);
+        this.commandLoader = new CommandLoader(this, "TRAVERSE");
+        this.banManager = new BanManager(this);
+        this.rankManager = new RankManager(this);
     }
 
     @Override
     public void onDisable() {
         // Plugin shutdown logic
     }
-
-    @SneakyThrows
-    private void initDatabaseGroups() {
-        handler = new DBConnectionHandler(new DBProperties("groups.properties"));
-        DBGroup groupHandler = new DBGroup(handler.establish());
-        Arrays.stream(Rank.values()).forEach(groupHandler::createTable);
-        groupHandler.close();
-    }
-
-    public DBConnectionHandler getSQLManager() {
-        return handler;
-    }
 }

src/main/java/mc/unraveled/reforged/storage/DBBan.java

@@ -30,7 +30,7 @@ public class DBBan {
     }
 
     @SneakyThrows
-    public void addBan(AbstractBan ban) {
+    public void insert(@NotNull AbstractBan ban) {
         PreparedStatement statement = getConnection().prepareStatement("INSERT INTO bans (uuid, ip, reason, banned_by, banned_at, expires_at, active) VALUES (?, ?, ?, ?, ?, ?, ?);");
         statement.setString(1, ban.getUuid());
         statement.setString(2, ban.getIp());
@@ -78,10 +78,37 @@ public class DBBan {
     }
 
     @SneakyThrows
-    public void close() {
-        getConnection().close();
+    public void update(@NotNull AbstractBan ban) {
+        PreparedStatement statement = getConnection().prepareStatement("UPDATE bans SET reason = ?, banned_by = ?, banned_at = ?, expires_at = ?, active = ? WHERE uuid = ?;");
+        statement.setString(1, ban.getReason());
+        statement.setString(2, ban.getSource());
+        statement.setLong(3, ban.getPropogated());
+        statement.setLong(4, ban.getExpiry());
+        statement.setBoolean(5, ban.isActive());
+        statement.setString(6, ban.getUuid());
+        statement.executeUpdate();
     }
 
+    @SneakyThrows
+    public void delete(@NotNull AbstractBan ban) {
+        PreparedStatement statement = getConnection().prepareStatement("DELETE FROM bans WHERE uuid = ?;");
+        statement.setString(1, ban.getUuid());
+        statement.executeUpdate();
+    }
 
+    @SneakyThrows
+    public void deleteAll() {
+        PreparedStatement statement = getConnection().prepareStatement("DELETE FROM bans;");
+        statement.executeUpdate();
+    }
 
+    @SneakyThrows
+    public void close() {
+        getConnection().close();
+        this.connection = null;
+    }
+
+    public void open(Connection connection) {
+        this.connection = connection;
+    }
 }

src/main/java/mc/unraveled/reforged/storage/DBUser.java

@@ -0,0 +1,88 @@
+package mc.unraveled.reforged.storage;
+
+import lombok.Getter;
+import lombok.SneakyThrows;
+import mc.unraveled.reforged.data.PlayerData;
+import mc.unraveled.reforged.permission.Rank;
+import org.jetbrains.annotations.NotNull;
+
+import java.sql.Connection;
+import java.sql.PreparedStatement;
+import java.sql.ResultSet;
+import java.util.ArrayList;
+import java.util.Date;
+import java.util.List;
+import java.util.UUID;
+
+public class DBUser {
+    @Getter
+    private Connection connection;
+
+    public DBUser(Connection connection) {
+        this.connection = connection;
+    }
+
+    @SneakyThrows
+    public void createTable() {
+        PreparedStatement statement = getConnection().prepareStatement("CREATE TABLE IF NOT EXISTS users (uuid VARCHAR(36), username VARCHAR(16), rank VARCHAR(64), play_time BIGINT, coins BIGINT, last_login BIGINT, PRIMARY KEY (uuid));");
+        statement.executeUpdate();
+    }
+
+    @SneakyThrows
+    public void insert(@NotNull PlayerData playerData) {
+        PreparedStatement statement = getConnection().prepareStatement("IF NOT EXISTS (SELECT 1 FROM users WHERE uuid = ?) " +
+                "BEGIN INSERT INTO users (uuid, username, rank, play_time, coins, last_login) VALUES (?, ?, ?, ?, ?, ?) END " +
+                "ELSE BEGIN (UPDATE users SET username = ?, rank = ?, play_time = ?, coins = ?, last_login = ? WHERE uuid = ?) END;");
+
+        statement.setString(1, playerData.getUuid().toString());
+        statement.setString(2, playerData.getUuid().toString());
+        statement.setString(3, playerData.getUserName());
+        statement.setString(4, playerData.getRank().name());
+        statement.setLong(5, playerData.getPlaytime());
+        statement.setInt(6, playerData.getCoins());
+        statement.setLong(7, playerData.getLastLogin().getTime());
+        statement.setString(8, playerData.getUserName());
+        statement.setString(9, playerData.getRank().name());
+        statement.setLong(10, playerData.getPlaytime());
+        statement.setInt(11, playerData.getCoins());
+        statement.setLong(12, playerData.getLastLogin().getTime());
+        statement.setString(13, playerData.getUuid().toString());
+
+        statement.executeUpdate();
+    }
+
+    @SneakyThrows
+    public void delete(@NotNull PlayerData playerData) {
+        PreparedStatement statement = getConnection().prepareStatement("DELETE FROM users WHERE uuid = ?;");
+        statement.setString(1, playerData.getUuid().toString());
+        statement.executeUpdate();
+    }
+
+    @SneakyThrows
+    public void deleteAll() {
+        PreparedStatement statement = getConnection().prepareStatement("DELETE FROM users;");
+        statement.executeUpdate();
+    }
+
+    @SneakyThrows
+    public List<PlayerData> all() {
+        PreparedStatement statement = getConnection().prepareStatement("SELECT * FROM users;");
+        ResultSet resultSet = statement.executeQuery();
+        List<PlayerData> dataList = new ArrayList<>();
+        while (resultSet.next()) {
+            PlayerData playerData = new PlayerData(UUID.fromString(resultSet.getString("uuid")),
+                    resultSet.getString("username"),
+                    Rank.valueOf(resultSet.getString("rank")),
+                    resultSet.getLong("play_time"),
+                    resultSet.getInt("coins"),
+                    new Date(resultSet.getLong("last_login")));
+            dataList.add(playerData);
+        }
+        return dataList;
+    }
+
+    @SneakyThrows
+    public void close() {
+        getConnection().close();
+    }
+}

src/main/resources/db.properties

@@ -7,7 +7,7 @@ host=localhost
 # The database port.
 port=5432
 # The database file name.
-databaseFile=groups.db
+databaseFile=database.db
 # The database username.
 username=admin
 # The database password.