Add paginated commands, Closes #203, Add folder suggestions when your import fails

src/main/java/com/onarandombox/MultiverseCore/commands/HelpCommand.java

@@ -18,8 +18,7 @@ import org.bukkit.permissions.PermissionDefault;
 import java.util.ArrayList;
 import java.util.List;
 
-public class HelpCommand extends MultiverseCommand {
+public class HelpCommand extends PaginatedCommand<Command> {
-    private static final int CMDS_PER_PAGE = 7;
 
     public HelpCommand(MultiverseCore plugin) {
         super(plugin);
@@ -34,69 +33,14 @@ public class HelpCommand extends MultiverseCommand {
         this.addKey("mv search");
         this.addCommandExample("/mv help ?");
         this.setPermission("multiverse.help", "Displays a nice help menu.", PermissionDefault.TRUE);
+        this.setItemsPerPage(7);
     }
 
     @Override
-    public void runCommand(CommandSender sender, List<String> args) {
+    protected List<Command> getFilteredItems(List<Command> availableItems, String filter) {
-        sender.sendMessage(ChatColor.AQUA + "====[ Multiverse Help ]====");
-
-        int page = 1;
-
-        String filter = "";
-
-        if (args.size() == 0) {
-            filter = "";
-            page = 1;
-        } else if (args.size() == 1) {
-            try {
-                page = Integer.parseInt(args.get(0));
-            } catch (NumberFormatException ex) {
-                filter = args.get(0);
-                page = 1;
-            }
-        } else if (args.size() == 2) {
-            filter = args.get(0);
-            try {
-                page = Integer.parseInt(args.get(1));
-            } catch (NumberFormatException ex) {
-                page = 1;
-            }
-        }
-
-        List<Command> availableCommands = new ArrayList<Command>(this.plugin.getCommandHandler().getCommands(sender));
-        if (filter.length() > 0) {
-            availableCommands = this.getFilteredCommands(availableCommands, filter);
-            if (availableCommands.size() == 0) {
-                sender.sendMessage(ChatColor.RED + "Sorry... " + ChatColor.WHITE + "No commands matched your filter: " + ChatColor.AQUA + filter);
-                return;
-            }
-        }
-
-        if (!(sender instanceof Player)) {
-            sender.sendMessage(ChatColor.AQUA + " Add a '" + ChatColor.DARK_PURPLE + "?" + ChatColor.AQUA + "' after a command to see more about it.");
-            for (Command c : availableCommands) {
-                sender.sendMessage(ChatColor.AQUA + c.getCommandUsage());
-            }
-            return;
-        }
-
-        int totalPages = (int) Math.ceil(availableCommands.size() / (CMDS_PER_PAGE + 0.0));
-
-        if (page > totalPages) {
-            page = totalPages;
-        }
-
-        sender.sendMessage(ChatColor.AQUA + " Page " + page + " of " + totalPages);
-        sender.sendMessage(ChatColor.AQUA + " Add a '" + ChatColor.DARK_PURPLE + "?" + ChatColor.AQUA + "' after a command to see more about it.");
-
-        this.showPage(page, sender, availableCommands);
-
-    }
-
-    private List<Command> getFilteredCommands(List<Command> availableCommands, String filter) {
         List<Command> filtered = new ArrayList<Command>();
 
-        for (Command c : availableCommands) {
+        for (Command c : availableItems) {
             if (stitchThisString(c.getKeyStrings()).matches("(?i).*" + filter + ".*")) {
                 filtered.add(c);
             } else if (c.getCommandName().matches("(?i).*" + filter + ".*")) {
@@ -110,25 +54,43 @@ public class HelpCommand extends MultiverseCommand {
         return filtered;
     }
 
-    private String stitchThisString(List<String> list) {
+    @Override
-        String returnstr = "";
+    protected String getItemText(Command item) {
-        for (String s : list) {
+        return ChatColor.AQUA + item.getCommandUsage();
-            returnstr += s + " ";
-        }
-        return returnstr;
     }
 
-    private void showPage(int page, CommandSender sender, List<Command> cmds) {
+    @Override
-        int start = (page - 1) * CMDS_PER_PAGE;
+    public void runCommand(CommandSender sender, List<String> args) {
-        int end = start + CMDS_PER_PAGE;
+        sender.sendMessage(ChatColor.AQUA + "====[ Multiverse Help ]====");
-        for (int i = start; i < end; i++) {
+
-            // For consistancy, print some extra lines if it's a player:
+        FilterObject filterObject = this.getPageAndFilter(args);
-            if (i < cmds.size()) {
+
-                sender.sendMessage(ChatColor.AQUA + cmds.get(i).getCommandUsage());
+        List<Command> availableCommands = new ArrayList<Command>(this.plugin.getCommandHandler().getCommands(sender));
-            } else if (sender instanceof Player) {
+        if (filterObject.getFilter().length() > 0) {
-                sender.sendMessage(" ");
+            availableCommands = this.getFilteredItems(availableCommands, filterObject.getFilter());
-            }
+            if (availableCommands.size() == 0) {
+                sender.sendMessage(ChatColor.RED + "Sorry... " + ChatColor.WHITE + "No commands matched your filter: " + ChatColor.AQUA + filterObject.getFilter());
+                return;
             }
         }
 
+        if (!(sender instanceof Player)) {
+            sender.sendMessage(ChatColor.AQUA + " Add a '" + ChatColor.DARK_PURPLE + "?" + ChatColor.AQUA + "' after a command to see more about it.");
+            for (Command c : availableCommands) {
+                sender.sendMessage(ChatColor.AQUA + c.getCommandUsage());
+            }
+            return;
+        }
+
+        int totalPages = (int) Math.ceil(availableCommands.size() / (this.ITEMS_PER_PAGE + 0.0));
+
+        if (filterObject.getPage() > totalPages) {
+            filterObject.setPage(totalPages);
+        }
+
+        sender.sendMessage(ChatColor.AQUA + " Page " + filterObject.getPage() + " of " + totalPages);
+        sender.sendMessage(ChatColor.AQUA + " Add a '" + ChatColor.DARK_PURPLE + "?" + ChatColor.AQUA + "' after a command to see more about it.");
+
+        this.showPage(filterObject.getPage(), sender, availableCommands);
+    }
 }

src/main/java/com/onarandombox/MultiverseCore/commands/ImportCommand.java

@@ -9,6 +9,7 @@ package com.onarandombox.MultiverseCore.commands;
 
 import com.onarandombox.MultiverseCore.MultiverseCore;
 import com.onarandombox.MultiverseCore.api.MVWorldManager;
+import com.onarandombox.MultiverseCore.api.MultiverseWorld;
 import org.bukkit.ChatColor;
 import org.bukkit.World.Environment;
 import org.bukkit.command.Command;
@@ -17,6 +18,8 @@ import org.bukkit.permissions.PermissionDefault;
 
 import java.io.File;
 import java.io.FilenameFilter;
+import java.util.ArrayList;
+import java.util.Collection;
 import java.util.List;
 
 public class ImportCommand extends MultiverseCommand {
@@ -63,9 +66,17 @@ public class ImportCommand extends MultiverseCommand {
         File worldFolder = this.plugin.getServer().getWorldContainer();
         File[] files = worldFolder.listFiles();
         String worldList = "";
+        Collection<MultiverseWorld> worlds = this.worldManager.getMVWorlds();
+        List<String> worldStrings = new ArrayList<String>();
+        for (MultiverseWorld world : worlds) {
+            worldStrings.add(world.getName());
+        }
+        for (String world : this.worldManager.getUnloadedWorlds()) {
+            worldStrings.add(world);
+        }
         ChatColor currColor = ChatColor.WHITE;
         for (File file : files) {
-            if (file.isDirectory() && checkIfIsWorld(file)) {
+            if (file.isDirectory() && checkIfIsWorld(file) && !worldStrings.contains(file.getName())) {
                 worldList += currColor + file.getName() + " ";
                 if (currColor == ChatColor.WHITE) {
                     currColor = ChatColor.YELLOW;
@@ -83,6 +94,7 @@ public class ImportCommand extends MultiverseCommand {
 
         if (worldName.toLowerCase().equals("--list") || worldName.toLowerCase().equals("-l")) {
             String worldList = this.getPotentialWorlds();
+            sender.sendMessage(ChatColor.AQUA + "====[ These look like worlds ]====");
             sender.sendMessage(worldList);
             return;
         }
@@ -116,11 +128,13 @@ public class ImportCommand extends MultiverseCommand {
             Command.broadcastCommandMessage(sender, "Complete!");
         } else if (env == null) {
             sender.sendMessage(ChatColor.RED + "FAILED.");
-            sender.sendMessage("That world type did not exist.");
+            sender.sendMessage("That world environment did not exist.");
-            sender.sendMessage("For a list of available world types, type: /mvenv");
+            sender.sendMessage("For a list of available world types, type: " + ChatColor.AQUA + "/mvenv");
         } else {
             sender.sendMessage(ChatColor.RED + "FAILED.");
-            sender.sendMessage("That world folder does not exist...");
+            String worldList = this.getPotentialWorlds();
+            sender.sendMessage("That world folder does not exist. These look like worlds to me:");
+            sender.sendMessage(worldList);
         }
     }
 }

src/main/java/com/onarandombox/MultiverseCore/commands/ListCommand.java

@@ -9,35 +9,32 @@ package com.onarandombox.MultiverseCore.commands;
 
 import com.onarandombox.MultiverseCore.MultiverseCore;
 import com.onarandombox.MultiverseCore.api.MultiverseWorld;
+import com.pneumaticraft.commandhandler.Command;
 import org.bukkit.ChatColor;
 import org.bukkit.World.Environment;
 import org.bukkit.command.CommandSender;
 import org.bukkit.entity.Player;
 import org.bukkit.permissions.PermissionDefault;
 
+import java.util.ArrayList;
 import java.util.List;
 
-public class ListCommand extends MultiverseCommand {
+public class ListCommand extends PaginatedCommand<String> {
 
     public ListCommand(MultiverseCore plugin) {
         super(plugin);
         this.setName("World Listing");
         this.setCommandUsage("/mv list");
-        this.setArgRange(0, 0);
+        this.setArgRange(0, 2);
         this.addKey("mvlist");
         this.addKey("mvl");
         this.addKey("mv list");
         this.setPermission("multiverse.core.list.worlds", "Displays a listing of all worlds that you can enter.", PermissionDefault.OP);
+        this.setItemsPerPage(8);
     }
 
-    @Override
+    private List<String> getFancyWorldList(Player p) {
-    public void runCommand(CommandSender sender, List<String> args) {
+        List<String> worldList = new ArrayList<String>();
-        Player p = null;
-        if (sender instanceof Player) {
-            p = (Player) sender;
-        }
-
-        String output = ChatColor.LIGHT_PURPLE + "Worlds which you can view:\n";
         for (MultiverseWorld world : this.plugin.getMVWorldManager().getMVWorlds()) {
 
             if (p != null && (!this.plugin.getMVPerms().canEnterWorld(p, world))) {
@@ -53,26 +50,76 @@ public class ListCommand extends MultiverseCommand {
             } else if (env == Environment.THE_END) {
                 color = ChatColor.AQUA;
             }
-            String outputCache = world.getColoredWorldString() + ChatColor.WHITE + " - " + color + world.getEnvironment() + " \n";
+            String outputCache = world.getColoredWorldString() + ChatColor.WHITE + " - " + color + world.getEnvironment();
             if (world.isHidden()) {
-                // TODO: Add an actual permission for this.
+                if (p == null || p.hasPermission("multiverse.core.modify")) {
-                if (p == null || p.isOp()) {
                     // Prefix hidden worlds with an "[H]"
-                    outputCache = ChatColor.GRAY + "[H]" + outputCache;
+                    worldList.add(ChatColor.GRAY + "[H]" + outputCache);
-                    output += outputCache;
                 }
             } else {
-                output += outputCache;
+                worldList.add(outputCache);
             }
         }
         for (String name : this.plugin.getMVWorldManager().getUnloadedWorlds()) {
             if (p == null || this.plugin.getMVPerms().hasPermission(p, "multiverse.access." + name, true)) {
-                output += ChatColor.GRAY + name + " - UNLOADED\n";
+                worldList.add(ChatColor.GRAY + name + " - UNLOADED");
             }
         }
-        String[] response = output.split("\n");
+        return worldList;
-        for (String msg : response) {
+    }
-            sender.sendMessage(msg);
+
+    @Override
+    protected List<String> getFilteredItems(List<String> availableItems, String filter) {
+        List<String> filtered = new ArrayList<String>();
+
+        for (String s : availableItems) {
+            if (s.matches("(?i).*" + filter + ".*")) {
+                filtered.add(s);
             }
         }
+        return filtered;
+    }
+
+    @Override
+    protected String getItemText(String item) {
+        return item;
+    }
+
+    @Override
+    public void runCommand(CommandSender sender, List<String> args) {
+        sender.sendMessage(ChatColor.LIGHT_PURPLE + "====[ Multiverse World List ]====");
+        Player p = null;
+        if (sender instanceof Player) {
+            p = (Player) sender;
+        }
+
+
+        FilterObject filterObject = this.getPageAndFilter(args);
+
+        List<String> availableWorlds = new ArrayList<String>(this.getFancyWorldList(p));
+        if (filterObject.getFilter().length() > 0) {
+            availableWorlds = this.getFilteredItems(availableWorlds, filterObject.getFilter());
+            if (availableWorlds.size() == 0) {
+                sender.sendMessage(ChatColor.RED + "Sorry... " + ChatColor.WHITE + "No worlds matched your filter: " + ChatColor.AQUA + filterObject.getFilter());
+                return;
+            }
+        }
+
+        if (!(sender instanceof Player)) {
+            for (String c : availableWorlds) {
+                sender.sendMessage(c);
+            }
+            return;
+        }
+
+        int totalPages = (int) Math.ceil(availableWorlds.size() / (this.ITEMS_PER_PAGE + 0.0));
+
+        if (filterObject.getPage() > totalPages) {
+            filterObject.setPage(totalPages);
+        }
+
+        sender.sendMessage(ChatColor.AQUA + " Page " + filterObject.getPage() + " of " + totalPages);
+
+        this.showPage(filterObject.getPage(), sender, availableWorlds);
+    }
 }

src/main/java/com/onarandombox/MultiverseCore/commands/PaginatedCommand.java

@@ -0,0 +1,108 @@
+/******************************************************************************
+ * Multiverse 2 Copyright (c) the Multiverse Team 2011.                       *
+ * Multiverse 2 is licensed under the BSD License.                            *
+ * For more information please check the README.md file included              *
+ * with this project.                                                         *
+ ******************************************************************************/
+
+package com.onarandombox.MultiverseCore.commands;
+
+import com.onarandombox.MultiverseCore.MultiverseCore;
+import com.pneumaticraft.commandhandler.Command;
+import org.bukkit.ChatColor;
+import org.bukkit.command.CommandSender;
+import org.bukkit.entity.Player;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * Multiverse 2
+ *
+ * @author fernferret
+ */
+public abstract class PaginatedCommand<T> extends MultiverseCommand {
+    protected int ITEMS_PER_PAGE = 9;
+
+
+    public PaginatedCommand(MultiverseCore plugin) {
+        super(plugin);
+    }
+
+    protected void setItemsPerPage(int items) {
+        ITEMS_PER_PAGE = items;
+    }
+
+    protected abstract List<T> getFilteredItems(List<T> availableItems, String filter);
+
+    protected String stitchThisString(List<String> list) {
+        String returnstr = "";
+        for (String s : list) {
+            returnstr += s + " ";
+        }
+        return returnstr;
+    }
+
+    protected void showPage(int page, CommandSender sender, List<T> cmds) {
+        int start = (page - 1) * ITEMS_PER_PAGE;
+        int end = start + ITEMS_PER_PAGE;
+        for (int i = start; i < end; i++) {
+            // For consistancy, print some extra lines if it's a player:
+            if (i < cmds.size()) {
+                sender.sendMessage(this.getItemText(cmds.get(i)));
+            } else if (sender instanceof Player) {
+                sender.sendMessage(" ");
+            }
+        }
+    }
+
+    protected abstract String getItemText(T item);
+
+    protected FilterObject getPageAndFilter(List<String> args) {
+        int page = 1;
+
+        String filter = "";
+
+        if (args.size() == 0) {
+            filter = "";
+            page = 1;
+        } else if (args.size() == 1) {
+            try {
+                page = Integer.parseInt(args.get(0));
+            } catch (NumberFormatException ex) {
+                filter = args.get(0);
+                page = 1;
+            }
+        } else if (args.size() == 2) {
+            filter = args.get(0);
+            try {
+                page = Integer.parseInt(args.get(1));
+            } catch (NumberFormatException ex) {
+                page = 1;
+            }
+        }
+        return new FilterObject(page, filter);
+    }
+
+    protected class FilterObject {
+        private Integer page;
+        private String filter;
+
+        public FilterObject(Integer page, String filter) {
+            this.page = page;
+            this.filter = filter;
+        }
+
+        public Integer getPage() {
+            return this.page;
+        }
+
+        public void setPage(int page) {
+            this.page = page;
+        }
+
+        public String getFilter() {
+            return this.filter;
+        }
+    }
+}