Commands on level up

src/main/java/com/gmail/nossr50/api/ExperienceAPI.java

@@ -1123,7 +1123,7 @@ public static void removeXPOffline(UUID uuid, String skillType, int xp) {
      * @throws InvalidFormulaTypeException if the given formulaType is not valid
      */
     public static int getXpNeededToLevel(int level) {
-        return mcMMO.getFormulaManager().getXPtoNextLevel(level, ExperienceConfig.getInstance().getFormulaType());
+        return mcMMO.p.getFormulaManager().getXPtoNextLevel(level, ExperienceConfig.getInstance().getFormulaType());
     }
 
     /**
@@ -1137,7 +1137,7 @@ public static int getXpNeededToLevel(int level) {
      * @throws InvalidFormulaTypeException if the given formulaType is not valid
      */
     public static int getXpNeededToLevel(int level, String formulaType) {
-        return mcMMO.getFormulaManager().getXPtoNextLevel(level, getFormulaType(formulaType));
+        return mcMMO.p.getFormulaManager().getXPtoNextLevel(level, getFormulaType(formulaType));
     }
 
     /**

src/main/java/com/gmail/nossr50/commands/experience/ConvertExperienceCommand.java

@@ -18,7 +18,7 @@ public class ConvertExperienceCommand implements CommandExecutor {
     @Override
     public boolean onCommand(@NotNull CommandSender sender, @NotNull Command command, @NotNull String label, String[] args) {
         if (args.length == 2) {
-            FormulaType previousType = mcMMO.getFormulaManager().getPreviousFormulaType();
+            FormulaType previousType = mcMMO.p.getFormulaManager().getPreviousFormulaType();
             FormulaType newType = FormulaType.getFormulaType(args[1].toUpperCase(Locale.ENGLISH));
 
             if (newType == FormulaType.UNKNOWN) {

src/main/java/com/gmail/nossr50/commands/levelup/CommandsOnLevel.java

@@ -0,0 +1,4 @@
+package com.gmail.nossr50.commands.levelup;
+
+public interface CommandsOnLevel {
+}

src/main/java/com/gmail/nossr50/commands/levelup/LevelUpCommand.java

@@ -0,0 +1,114 @@
+package com.gmail.nossr50.commands.levelup;
+
+import com.gmail.nossr50.datatypes.player.McMMOPlayer;
+import com.gmail.nossr50.datatypes.skills.PrimarySkillType;
+import com.gmail.nossr50.mcMMO;
+import com.gmail.nossr50.util.LogUtils;
+import org.bukkit.Bukkit;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+import org.jetbrains.annotations.VisibleForTesting;
+
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Objects;
+import java.util.Set;
+import java.util.function.BiPredicate;
+import java.util.function.Predicate;
+
+public class LevelUpCommand implements CommandsOnLevel {
+    private final @Nullable List<BiPredicate<PrimarySkillType, Integer>> conditions;
+    private final @Nullable Predicate<Integer> powerLevelCondition;
+    private final boolean logInfo;
+    private final @NotNull LinkedList<String> commands;
+
+    public LevelUpCommand(@Nullable List<BiPredicate<PrimarySkillType, Integer>> conditions,
+                          @Nullable Predicate<Integer> powerLevelCondition,
+                          @NotNull LinkedList<String> commands, boolean logInfo) {
+        this.conditions = conditions;
+        this.powerLevelCondition = powerLevelCondition;
+        if (conditions == null && powerLevelCondition == null)
+            throw new IllegalArgumentException("At least one condition must be set");
+        this.commands = commands;
+        this.logInfo = logInfo;
+    }
+
+    public void process(@NotNull McMMOPlayer player, @NotNull PrimarySkillType primarySkillType, @NotNull Set<Integer> levelsGained,
+                        @NotNull Set<Integer> powerLevelsGained) {
+        // each predicate has to pass at least once
+        // we check the predicates against all levels gained to see if they pass at least once
+        // if all predicates pass at least once, we execute the command
+        boolean allConditionsPass = (conditions == null) || conditions.stream().allMatch(predicate -> levelsGained.stream().anyMatch(level -> predicate.test(primarySkillType, level)));
+        // we also check the power level predicate to see if it passes at least once, if this predicate is null, we mark it as passed
+        boolean powerLevelConditionPass = (powerLevelCondition == null) || powerLevelsGained.stream().anyMatch(powerLevelCondition);
+        if (allConditionsPass && powerLevelConditionPass) {
+            executeCommand(player);
+        }
+    }
+
+    @VisibleForTesting
+    void executeCommand(@NotNull McMMOPlayer player) {
+        LogUtils.debug(mcMMO.p.getLogger(), "Executing level up commands: " + commands);
+        for (String command : commands) {
+            LogUtils.debug(mcMMO.p.getLogger(), "Executing command: " + command);
+            String injectedCommand = injectedCommand(command, player);
+            if (!injectedCommand.equalsIgnoreCase(command)) {
+                LogUtils.debug(mcMMO.p.getLogger(), ("Command has been injected with new values: " + injectedCommand));
+            }
+            Bukkit.dispatchCommand(Bukkit.getConsoleSender(), injectedCommand);
+        }
+    }
+
+    @VisibleForTesting
+    String injectedCommand(String command, McMMOPlayer player) {
+        // TODO: unit tests
+        StringBuilder commandBuilder = new StringBuilder(command);
+
+        // Replace %player% with player name
+        replaceAll(commandBuilder, "{@player}", player.getPlayer().getName());
+
+        // Replace each skill level
+        for (PrimarySkillType primarySkillType : PrimarySkillType.values()) {
+            if (primarySkillType == PrimarySkillType.SMELTING || primarySkillType == PrimarySkillType.SALVAGE) {
+                continue;
+            }
+            replaceAll(commandBuilder, "{@" + primarySkillType.name().toLowerCase() + "_level}",
+                    String.valueOf(player.getSkillLevel(primarySkillType)));
+        }
+
+        // Replace power level
+        replaceAll(commandBuilder, "{@power_level}", String.valueOf(player.getPowerLevel()));
+
+        return commandBuilder.toString();
+    }
+
+    private void replaceAll(StringBuilder builder, String from, String to) {
+        int index = builder.indexOf(from);
+        while (index != -1) {
+            builder.replace(index, index + from.length(), to);
+            index = builder.indexOf(from, index + to.length());
+        }
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) return true;
+        if (o == null || getClass() != o.getClass()) return false;
+        LevelUpCommand that = (LevelUpCommand) o;
+        return logInfo == that.logInfo && Objects.equals(conditions, that.conditions) && Objects.equals(commands, that.commands);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(conditions, logInfo, commands);
+    }
+
+    @Override
+    public String toString() {
+        return "SkillLevelUpCommand{" +
+                "conditions=" + conditions +
+                ", logInfo=" + logInfo +
+                ", commands=" + commands +
+                '}';
+    }
+}

src/main/java/com/gmail/nossr50/commands/levelup/LevelUpCommandBuilder.java

@@ -0,0 +1,79 @@
+package com.gmail.nossr50.commands.levelup;
+
+import com.gmail.nossr50.datatypes.player.McMMOPlayer;
+import com.gmail.nossr50.datatypes.skills.PrimarySkillType;
+import org.jetbrains.annotations.NotNull;
+
+import java.util.Collection;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.function.BiPredicate;
+import java.util.function.Predicate;
+
+import static java.util.Objects.requireNonNull;
+
+public class LevelUpCommandBuilder {
+    private LinkedList<String> commands = null;
+    private List<BiPredicate<PrimarySkillType, Integer>> conditions = null;
+    private Predicate<Integer> powerLevelCondition = null;
+    private boolean logInfo;
+
+    public LevelUpCommandBuilder() {
+        this.logInfo = false;
+    }
+
+    public LevelUpCommandBuilder withPredicate(BiPredicate<PrimarySkillType, Integer> condition) {
+        if (this.conditions == null) {
+            this.conditions = new LinkedList<>();
+        }
+
+        conditions.add(condition);
+        return this;
+    }
+
+    public LevelUpCommandBuilder withPowerLevelCondition(Predicate<Integer> powerLevelCondition) {
+        if (this.powerLevelCondition != null) {
+            throw new IllegalStateException("power level condition already set");
+        }
+
+        this.powerLevelCondition = powerLevelCondition;
+        return this;
+    }
+
+    public LevelUpCommandBuilder withConditions(
+            @NotNull Collection<BiPredicate<PrimarySkillType, Integer>> conditions) {
+        if (this.conditions == null) {
+            this.conditions = new LinkedList<>();
+        } else {
+            throw new IllegalStateException("conditions already set");
+        }
+
+        this.conditions.addAll(conditions);
+        return this;
+    }
+
+    public LevelUpCommandBuilder withLogInfo(boolean logInfo) {
+        this.logInfo = logInfo;
+        return this;
+    }
+
+    public LevelUpCommandBuilder command(@NotNull String command) {
+        this.commands = new LinkedList<>();
+        this.commands.add(command);
+        return this;
+    }
+
+    public LevelUpCommandBuilder commands(@NotNull Collection<String> command) {
+        this.commands = new LinkedList<>(command);
+        return this;
+    }
+
+    public LevelUpCommand build() {
+        if (conditions == null && powerLevelCondition == null) {
+            throw new IllegalStateException("no conditions found for level up command");
+        }
+        requireNonNull(commands, "no commands found for level up command");
+
+        return new LevelUpCommand(conditions, powerLevelCondition, commands, logInfo);
+    }
+}

src/main/java/com/gmail/nossr50/commands/levelup/LevelUpCommandManager.java

@@ -0,0 +1,83 @@
+package com.gmail.nossr50.commands.levelup;
+
+import com.gmail.nossr50.datatypes.player.McMMOPlayer;
+import com.gmail.nossr50.datatypes.skills.PrimarySkillType;
+import com.gmail.nossr50.mcMMO;
+import com.gmail.nossr50.util.LogUtils;
+import org.jetbrains.annotations.NotNull;
+
+import java.util.HashSet;
+import java.util.Objects;
+import java.util.Set;
+
+import static java.util.Objects.requireNonNull;
+
+/**
+ * Manages commands to be executed on level up
+ */
+public class LevelUpCommandManager {
+    private final @NotNull Set<LevelUpCommand> levelUpCommands;
+    private final @NotNull mcMMO plugin;
+
+    public LevelUpCommandManager(@NotNull mcMMO plugin) {
+        this.plugin = requireNonNull(plugin, "plugin cannot be null");
+        this.levelUpCommands = new HashSet<>();
+    }
+
+    public void registerCommand(@NotNull LevelUpCommand levelUpCommand) {
+        requireNonNull(levelUpCommand, "skillLevelUpCommand cannot be null");
+        levelUpCommands.add(levelUpCommand);
+        LogUtils.debug(mcMMO.p.getLogger(), "Registered level up command - SkillLevelUpCommand: " + levelUpCommand);
+    }
+
+    /**
+     * Apply the level up commands to the player
+     *
+     * @param mmoPlayer         the player
+     * @param primarySkillType  the skill type
+     * @param levelsGained      the levels gained
+     */
+    public void applySkillLevelUp(@NotNull McMMOPlayer mmoPlayer, @NotNull PrimarySkillType primarySkillType,
+                                  Set<Integer> levelsGained, Set<Integer> powerLevelsGained) {
+        if (!mmoPlayer.getPlayer().isOnline()) {
+            return;
+        }
+
+        for (LevelUpCommand command : levelUpCommands) {
+            command.process(mmoPlayer, primarySkillType, levelsGained, powerLevelsGained);
+        }
+    }
+
+    public @NotNull Set<LevelUpCommand> getLevelUpCommands() {
+        return levelUpCommands;
+    }
+
+    /**
+     * Clear all registered commands
+     */
+    public void clear() {
+        mcMMO.p.getLogger().info("Clearing registered commands on level up");
+        levelUpCommands.clear();
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) return true;
+        if (o == null || getClass() != o.getClass()) return false;
+        LevelUpCommandManager that = (LevelUpCommandManager) o;
+        return Objects.equals(levelUpCommands, that.levelUpCommands) && Objects.equals(plugin, that.plugin);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(levelUpCommands, plugin);
+    }
+
+    @Override
+    public String toString() {
+        return "LevelUpCommandManager{" +
+                "levelUpCommands=" + levelUpCommands +
+                ", plugin=" + plugin +
+                '}';
+    }
+}