Fixes https://github.com/IntellectualSites/PlotSquaredSuggestions/issues/77

Core/src/main/java/com/plotsquared/core/command/Info.java

@@ -57,6 +57,7 @@ public class Info extends SubCommand {
                 case "id":
                 case "size":
                 case "members":
+                case "creationdate":
                 case "seen":
                 case "owner":
                 case "rating":
@@ -175,6 +176,8 @@ public class Info extends SubCommand {
                 return TranslatableCaption.of("info.plot_info_likes");
             case "seen":
                 return TranslatableCaption.of("info.plot_info_seen");
+            case "creationdate":
+                return TranslatableCaption.of("info.plot_info_creationdate");
             default:
                 return null;
         }

Core/src/main/java/com/plotsquared/core/configuration/Settings.java

@@ -438,6 +438,16 @@ public class Settings extends Config {
         public static String DELETE_URL = "https://sw.jacobandersen.dev/delete/{key}";
     }
 
+    @Comment("Used to format the plot creation date placeholder. Modifying the format does not affect the storage time.")
+    public static class Timeformat {
+
+        @Comment("The date used formatted in ISO 8601")
+        public static String DATE_FORMAT = "yyyy-MM-dd HH:mm:ss z";
+
+        @Comment("The time zone used")
+        public static String TIME_ZONE = "GMT";
+    }
+
 
     @Comment("Miscellaneous settings")
     public static final class Done {

Core/src/main/java/com/plotsquared/core/plot/Plot.java

@@ -84,10 +84,12 @@ import org.slf4j.LoggerFactory;
 import javax.annotation.Nonnull;
 import javax.annotation.Nullable;
 import java.text.DecimalFormat;
+import java.text.SimpleDateFormat;
 import java.util.ArrayDeque;
 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.Collections;
+import java.util.Date;
 import java.util.HashMap;
 import java.util.HashSet;
 import java.util.List;
@@ -95,6 +97,7 @@ import java.util.Map;
 import java.util.Map.Entry;
 import java.util.Objects;
 import java.util.Set;
+import java.util.TimeZone;
 import java.util.UUID;
 import java.util.concurrent.CompletableFuture;
 import java.util.concurrent.ConcurrentHashMap;
@@ -2726,6 +2729,11 @@ public class Plot {
             } else {
                 areaTemplate = Template.of("area", TranslatableCaption.of("info.none").getComponent(player));
             }
+            long creationDate = Long.parseLong(String.valueOf(timestamp));
+            SimpleDateFormat sdf = new SimpleDateFormat(Settings.Timeformat.DATE_FORMAT);
+            sdf.setTimeZone(TimeZone.getTimeZone(Settings.Timeformat.TIME_ZONE));
+            String newDate = sdf.format(creationDate);
+
             Template idTemplate = Template.of("id", this.getId().toString());
             Template aliasTemplate = Template.of("alias", alias);
             Template numTemplate = Template.of("num", String.valueOf(num));
@@ -2739,6 +2747,7 @@ public class Plot {
             Template deniedTemplate = Template.of("denied", denied);
             Template seenTemplate = Template.of("seen", seen);
             Template flagsTemplate = Template.of("flags", flags);
+            Template creationTemplate = Template.of("creationdate", newDate);
             Template buildTemplate = Template.of("build", String.valueOf(build));
             if (iInfo.getComponent(player).contains("<rating>")) {
                 TaskManager.runTaskAsync(() -> {
@@ -2767,7 +2776,7 @@ public class Plot {
                     future.complete(StaticCaption.of(MINI_MESSAGE.serialize(MINI_MESSAGE
                         .parse(iInfo.getComponent(player), headerTemplate, areaTemplate, idTemplate, aliasTemplate, numTemplate, descTemplate,
                             biomeTemplate, ownerTemplate, membersTemplate, playerTemplate, trustedTemplate, helpersTemplate, deniedTemplate,
-                            seenTemplate, flagsTemplate, buildTemplate, ratingTemplate, footerTemplate))));
+                            seenTemplate, flagsTemplate, buildTemplate, ratingTemplate, creationTemplate, footerTemplate))));
                 });
                 return;
             }

Core/src/main/java/com/plotsquared/core/util/placeholders/PlaceholderRegistry.java

@@ -29,6 +29,7 @@ import com.google.common.base.Function;
 import com.google.common.base.Preconditions;
 import com.google.common.collect.Maps;
 import com.google.inject.Singleton;
+import com.plotsquared.core.configuration.Settings;
 import com.plotsquared.core.player.PlotPlayer;
 import com.plotsquared.core.plot.Plot;
 import com.plotsquared.core.plot.flag.GlobalFlagContainer;
@@ -39,10 +40,12 @@ import com.plotsquared.core.util.PlayerManager;
 import javax.annotation.Nonnull;
 import javax.annotation.Nullable;
 import javax.inject.Inject;
+import java.text.SimpleDateFormat;
 import java.util.Collection;
 import java.util.Collections;
 import java.util.Locale;
 import java.util.Map;
+import java.util.TimeZone;
 import java.util.UUID;
 import java.util.function.BiFunction;
 
@@ -54,6 +57,7 @@ public final class PlaceholderRegistry {
 
     private final Map<String, Placeholder> placeholders;
     private final EventDispatcher eventDispatcher;
+    private final long timestamp = 0;
 
     @Inject public PlaceholderRegistry(@Nonnull final EventDispatcher eventDispatcher) {
         this.placeholders = Maps.newHashMap();
@@ -130,6 +134,15 @@ public final class PlaceholderRegistry {
             }
             return String.valueOf(PlayerManager.getPlayerList(plot.getDenied()));
         });
+        this.createPlaceholder("currentplot_creationdate", (player, plot) -> {
+            if (plot.getTimestamp() == 0) {
+                return "0";
+            }
+            long creationDate = plot.getTimestamp();
+            SimpleDateFormat sdf = new SimpleDateFormat(Settings.Timeformat.DATE_FORMAT);
+            sdf.setTimeZone(TimeZone.getTimeZone(Settings.Timeformat.TIME_ZONE));
+            return sdf.format(creationDate);
+        });
         this.createPlaceholder("has_build_rights", (player, plot) ->
             plot.isAdded(player.getUUID()) ? "true" : "false");
         this.createPlaceholder("currentplot_x", (player, plot) -> Integer.toString(plot.getId().getX()));

Core/src/main/resources/lang/messages_en.json

@@ -381,7 +381,7 @@
   "info.plot_info_unclaimed": "<prefix><gray>Plot <gold><plot></gold> is not yet claimed.</gray>",
   "info.plot_info_header": "<dark_gray><strikethrough>--------- <reset><gold>INFO </gold><dark_gray><strikethrough>---------</dark_gray><reset>",
   "info.plot_info_hidden": "<prefix><red>You cannot view the information about this plot.</red>",
-  "info.plot_info_format": "<header>\n<gold>ID: <gray><id></gray>\nArea: <gray><area></gray>\nAlias: <gray><alias></gray>\nOwner: <gray><owner></gray>\nBiome: <gray><biome></gray>\nCan Build: <gray><build></gray>\nRating: <gray><rating></gray>\nSeen: <gray><seen></gray>\nTrusted: <gray><trusted></gray>\nMembers: <gray><members></gray>\nDenied: <gray><denied></gray>\nFlags: <gray><flags></gray>\nDescription: <gray><desc></gray></gold>\n<footer>",
+  "info.plot_info_format": "<header>\n<gold>ID: <gray><id></gray>\nArea: <gray><area></gray>\nAlias: <gray><alias></gray>\nOwner: <gray><owner></gray>\nBiome: <gray><biome></gray>\nCan Build: <gray><build></gray>\nRating: <gray><rating></gray>\nSeen: <gray><seen></gray>\nCreation: <gray><creationdate></gray>\nTrusted: <gray><trusted></gray>\nMembers: <gray><members></gray>\nDenied: <gray><denied></gray>\nFlags: <gray><flags></gray>\nDescription: <gray><desc></gray></gold>\n<footer>",
   "info.plot_info_footer": "<dark_gray><strikethrough>--------- <reset><gold>INFO </gold><dark_gray><strikethrough>---------<reset>",
   "info.plot_info_trusted": "<gold>Trusted:</gold> <gray><trusted></gray>",
   "info.plot_info_members": "<gold>Members:</gold> <gray><members></gray>",
@@ -395,6 +395,7 @@
   "info.plot_info_alias": "<gold>Alias:</gold><gray> <alias></gray>",
   "info.plot_info_size": "<gold>Size:</gold><gray> <size></gray>",
   "info.plot_info_seen": "<gold>Seen:</gold><gray> <seen></gray>",
+  "info.plot_info_creationdate": "<gold>Creation:</gold><gray> <creationdate></gray>",
   "info.plot_user_list": "<gray><user></gray>",
   "info.plot_flag_list": "<gray><flag>: <value></gray>",
   "info.plot_no_description": "<prefix><gray>No description set.</gray>",