Move Economy logic out of main plugin class and into MoneyThing.

This means that MoneyThingParser now needs to pass along an Economy instance instead of a MobArena instance, which makes the dependency a little more focused and reasonable.

Also adds MoneyThingParser tests.

src/main/java/com/garbagemule/MobArena/MobArena.java

@@ -11,8 +11,6 @@ import com.garbagemule.MobArena.util.config.ConfigUtils;
 import com.garbagemule.MobArena.util.inventory.InventoryManager;
 import com.garbagemule.MobArena.waves.ability.AbilityManager;
 import net.milkbowl.vault.economy.Economy;
-import net.milkbowl.vault.economy.EconomyResponse;
-import net.milkbowl.vault.economy.EconomyResponse.ResponseType;
 import org.bukkit.ChatColor;
 import org.bukkit.configuration.InvalidConfigurationException;
 import org.bukkit.configuration.file.FileConfiguration;
@@ -299,28 +297,8 @@ public class MobArena extends JavaPlugin
         }
     }
 
-    public boolean giveMoney(Player p, double amount) {
-        if (economy != null) {
-            EconomyResponse result = economy.depositPlayer(p, amount);
-            return (result.type == ResponseType.SUCCESS);
-        }
-        return false;
-    }
-
-    public boolean takeMoney(Player p, double amount) {
-        if (economy != null) {
-            EconomyResponse result = economy.withdrawPlayer(p, amount);
-            return (result.type == ResponseType.SUCCESS);
-        }
-        return false;
-    }
-
-    public boolean hasEnough(Player p, double amount) {
-        return economy == null || (economy.getBalance(p) >= amount);
-    }
-
-    public String economyFormat(double amount) {
-        return economy == null ? null : economy.format(amount);
+    public Economy getEconomy() {
+        return economy;
     }
 
     public Messenger getGlobalMessenger() {

src/main/java/com/garbagemule/MobArena/commands/setup/SetClassPriceCommand.java

@@ -4,6 +4,7 @@ import com.garbagemule.MobArena.ArenaClass;
 import com.garbagemule.MobArena.commands.Command;
 import com.garbagemule.MobArena.commands.CommandInfo;
 import com.garbagemule.MobArena.framework.ArenaMaster;
+import net.milkbowl.vault.economy.Economy;
 import org.bukkit.command.CommandSender;
 
 @CommandInfo(
@@ -49,7 +50,9 @@ public class SetClassPriceCommand implements Command
             double price = Double.parseDouble(arg2);
 
             value = "$" + arg2;
-            msg = "Price for class '" + ac.getConfigName() + "' was set to " + am.getPlugin().economyFormat(price);
+            Economy economy = am.getPlugin().getEconomy();
+            String formatted = (economy != null) ? economy.format(price) : ("$" + price);
+            msg = "Price for class '" + ac.getConfigName() + "' was set to " + formatted;
         } else {
             value = null;
             msg = "Price for class '" + ac.getConfigName() + "' was removed. The class is now free!";

src/main/java/com/garbagemule/MobArena/things/MoneyThing.java

@@ -1,34 +1,50 @@
 package com.garbagemule.MobArena.things;
 
-import com.garbagemule.MobArena.MobArena;
+import net.milkbowl.vault.economy.Economy;
+import net.milkbowl.vault.economy.EconomyResponse;
+import net.milkbowl.vault.economy.EconomyResponse.ResponseType;
 import org.bukkit.entity.Player;
 
 public class MoneyThing implements Thing {
-    private MobArena plugin;
+    private Economy economy;
     private double amount;
 
-    public MoneyThing(MobArena plugin, double amount) {
-        this.plugin = plugin;
+    public MoneyThing(Economy economy, double amount) {
+        this.economy = economy;
         this.amount = amount;
     }
 
     @Override
     public boolean giveTo(Player player) {
-        return plugin.giveMoney(player, amount);
+        if (economy == null) {
+            return false;
+        }
+        EconomyResponse result = economy.depositPlayer(player, amount);
+        return result.type == ResponseType.SUCCESS;
     }
 
     @Override
     public boolean takeFrom(Player player) {
-        return plugin.takeMoney(player, amount);
+        if (economy == null) {
+            return false;
+        }
+        EconomyResponse result = economy.withdrawPlayer(player, amount);
+        return result.type == ResponseType.SUCCESS;
     }
 
     @Override
     public boolean heldBy(Player player) {
-        return plugin.hasEnough(player, amount);
+        if (economy == null) {
+            return false;
+        }
+        return economy.getBalance(player) >= amount;
     }
 
     @Override
     public String toString() {
-        return plugin.economyFormat(amount);
+        if (economy == null) {
+            return "$" + amount;
+        }
+        return economy.format(amount);
     }
 }

src/main/java/com/garbagemule/MobArena/things/MoneyThingParser.java

@@ -1,15 +1,15 @@
 package com.garbagemule.MobArena.things;
 
-import com.garbagemule.MobArena.MobArena;
+import net.milkbowl.vault.economy.Economy;
 
 class MoneyThingParser implements ThingParser {
     private static final String PREFIX_LONG = "money:";
     private static final String PREFIX_SHORT = "$";
 
-    private MobArena plugin;
+    private Economy economy;
 
-    MoneyThingParser(MobArena plugin) {
-        this.plugin = plugin;
+    MoneyThingParser(Economy economy) {
+        this.economy = economy;
     }
 
     @Override
@@ -18,7 +18,7 @@ class MoneyThingParser implements ThingParser {
         if (money == null) {
             return null;
         }
-        return new MoneyThing(plugin, Double.parseDouble(money));
+        return new MoneyThing(economy, Double.parseDouble(money));
     }
 
     private String trimPrefix(String s) {

src/main/java/com/garbagemule/MobArena/things/ThingManager.java

@@ -12,7 +12,7 @@ public class ThingManager implements ThingParser {
     public ThingManager(MobArena plugin, ItemStackThingParser parser) {
         parsers = new ArrayList<>();
         parsers.add(new CommandThingParser());
-        parsers.add(new MoneyThingParser(plugin));
+        parsers.add(new MoneyThingParser(plugin.getEconomy()));
         items = parser;
     }
 

src/test/java/com/garbagemule/MobArena/things/MoneyThingParserTest.java

@@ -0,0 +1,55 @@
+package com.garbagemule.MobArena.things;
+
+import static org.hamcrest.CoreMatchers.is;
+import static org.hamcrest.CoreMatchers.not;
+import static org.hamcrest.CoreMatchers.nullValue;
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.mockito.Mockito.mock;
+
+import net.milkbowl.vault.economy.Economy;
+import org.junit.Before;
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.rules.ExpectedException;
+
+public class MoneyThingParserTest {
+
+    private MoneyThingParser subject;
+
+    @Rule
+    public ExpectedException exception = ExpectedException.none();
+
+    @Before
+    public void setup() {
+        Economy economy = mock(Economy.class);
+        subject = new MoneyThingParser(economy);
+    }
+
+    @Test
+    public void noPrefixNoBenjamins() {
+        MoneyThing result = subject.parse("500");
+
+        assertThat(result, is(nullValue()));
+    }
+
+    @Test
+    public void shortPrefix() {
+        MoneyThing result = subject.parse("$500");
+
+        assertThat(result, not(nullValue()));
+    }
+
+    @Test
+    public void longPrefix() {
+        MoneyThing result = subject.parse("money:500");
+
+        assertThat(result, not(nullValue()));
+    }
+
+    @Test
+    public void numberFormatForNaughtyValues() {
+        exception.expect(NumberFormatException.class);
+        subject.parse("$cash");
+    }
+
+}