Implement warning and post-clear command hooks

src/main/java/com/pokeskies/skiesclear/ClearTask.kt

@@ -49,6 +49,14 @@ class ClearTask(
             }
 
         }
+        if (clearConfig.commands.clear.isNotEmpty()) {
+            for (command in clearConfig.commands.clear) {
+                if (server.commands.performPrefixedCommand(server.createCommandSourceStack(), command) == 0) {
+                    Utils.printError("The post-clearing command \"$command\" failed to execute")
+                    break
+                }
+            }
+        }
         if (broadcast && (clearConfig.messages.clear.isNotEmpty() || clearConfig.sounds.clear != null)) {
             for (player in server.playerList.players) {
                 for (line in clearConfig.messages.clear) {
@@ -69,6 +77,7 @@ class ClearTask(
                 }
             }
         }
+
         return totalCleared.get()
     }
 
@@ -99,6 +108,15 @@ class ClearTask(
                 )
             }
         }
+        val warningCommands: List<String>? = clearConfig.commands.warnings[timer.toString()]
+        if (warningCommands != null) {
+            for (command in warningCommands) {
+                if (server.commands.performPrefixedCommand(server.createCommandSourceStack(), command) == 0) {
+                    Utils.printError("The ${timer}s warning command \"$command\" failed to execute")
+                    break
+                }
+            }
+        }
         if (timer-- <= 0) {
             resetTimer()
             runClear(server, true)

src/main/java/com/pokeskies/skiesclear/config/ClearConfig.kt

@@ -14,6 +14,7 @@ class ClearConfig(
     val messages: Messages = Messages(),
     val sounds: Sounds = Sounds(),
     val clearables: Clearables? = null,
+    val commands: Commands = Commands(),
 ) {
     class Messages(
         @JsonAdapter(FlexibleListAdaptorFactory::class)
@@ -56,6 +57,16 @@ class ClearConfig(
         }
     }
 
+    class Commands(
+        @JsonAdapter(FlexibleListAdaptorFactory::class)
+        val clear: List<String> = emptyList(),
+        val warnings: Map<String, List<String>> = emptyMap(),
+    ) {
+        override fun toString(): String {
+            return "Commands(clear=$clear, warnings=$warnings)"
+        }
+    }
+
     override fun toString(): String {
         return "ClearConfig(enabled=$enabled, interval=$interval, dimensions=$dimensions, messages=$messages, sounds=$sounds, clearables=$clearables)"
     }

src/main/resources/assets/skiesclear/config.json

@@ -46,6 +46,16 @@
           }
         }
       },
+      "commands": {
+        "clear": [
+        ],
+        "warnings": {
+          "10": [
+          ],
+          "5": [
+          ]
+        }
+      },
       "clearables": {
         "items": {
           "enabled": true,