Adds sign tracking and refunds #3 #8

src/main/java/net/knarcraft/paidsigns/manager/EconomyManager.java

@@ -2,7 +2,6 @@ package net.knarcraft.paidsigns.manager;
 
 import net.milkbowl.vault.economy.Economy;
 import org.bukkit.OfflinePlayer;
-import org.bukkit.entity.Player;
 
 /**
  * A manager that performs all Economy tasks
@@ -55,7 +54,7 @@ public final class EconomyManager {
      * @param player <p>The player to withdraw money from</p>
      * @param cost   <p>The amount of money to withdraw</p>
      */
-    public static void withdraw(Player player, double cost) {
+    public static void withdraw(OfflinePlayer player, double cost) {
         economy.withdrawPlayer(player, cost);
     }
 

src/main/java/net/knarcraft/paidsigns/manager/TrackedSignManager.java

@@ -0,0 +1,128 @@
+package net.knarcraft.paidsigns.manager;
+
+import net.knarcraft.paidsigns.PaidSigns;
+import net.knarcraft.paidsigns.container.TrackedSign;
+import org.bukkit.Bukkit;
+import org.bukkit.Location;
+import org.bukkit.OfflinePlayer;
+import org.bukkit.configuration.ConfigurationSection;
+import org.bukkit.configuration.InvalidConfigurationException;
+import org.bukkit.configuration.file.YamlConfiguration;
+
+import java.io.File;
+import java.io.IOException;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.Objects;
+import java.util.UUID;
+import java.util.logging.Level;
+
+/**
+ * A manager for keeping track of plugin-signs created by players
+ */
+public class TrackedSignManager {
+
+    private static Map<Location, TrackedSign> trackedSigns = new HashMap<>();
+    private static final File signsFile = new File(PaidSigns.getInstance().getDataFolder(), "data.yml");
+
+    /**
+     * Adds a tracked sign to the manager
+     *
+     * @param signLocation <p>The location the sign was created at</p>
+     * @param playerId     <p>The unique id of the player that created the sign</p>
+     * @throws IOException <p>If unable to save the tracked signs</p>
+     */
+    public static void addTrackedSign(Location signLocation, UUID playerId, double cost) throws IOException {
+        trackedSigns.put(signLocation, new TrackedSign(playerId, cost));
+        saveTrackedSigns();
+    }
+
+    /**
+     * Removes a tracked sign from the manager
+     *
+     * @param signLocation <p>The location the sign was removed from</p>
+     * @throws IOException <p>If unable to save the tracked signs</p>
+     */
+    public static void removeTrackedSign(Location signLocation) throws IOException {
+        if (!trackedSigns.containsKey(signLocation)) {
+            return;
+        }
+        trackedSigns.remove(signLocation);
+        saveTrackedSigns();
+        if (!PaidSigns.getInstance().areRefundsEnabled()) {
+            return;
+        }
+        TrackedSign trackedSign = trackedSigns.get(signLocation);
+        OfflinePlayer player = Bukkit.getOfflinePlayer(trackedSign.getPlayerId());
+        double refundSum = trackedSign.getCost() / 100 * PaidSigns.getInstance().getRefundPercentage();
+        EconomyManager.withdraw(player, refundSum);
+    }
+
+    /**
+     * Loads all tracked signs from the data file
+     */
+    public static void loadTrackedSigns() {
+        YamlConfiguration configuration = YamlConfiguration.loadConfiguration(signsFile);
+        ConfigurationSection signSection = configuration.getConfigurationSection("trackedSigns");
+        trackedSigns = new HashMap<>();
+
+        if (signSection == null) {
+            PaidSigns.getInstance().getLogger().log(Level.WARNING, "Signs section not found in data.yml");
+            return;
+        }
+
+        for (String key : signSection.getKeys(false)) {
+            try {
+                loadSign(signSection, key);
+            } catch (InvalidConfigurationException e) {
+                PaidSigns.getInstance().getLogger().log(Level.SEVERE, "Unable to load sign " + key + ": " +
+                        e.getMessage());
+            }
+        }
+    }
+
+    /**
+     * Loads a sign from the save file
+     *
+     * @param signSection <p>The configuration section containing signs</p>
+     * @param key         <p>The sign key which is also the sign's location</p>
+     * @throws InvalidConfigurationException <p>If unable to load the sign</p>
+     */
+    private static void loadSign(ConfigurationSection signSection, String key) throws InvalidConfigurationException {
+        String[] locationParts = key.split(",");
+        Location signLocation;
+        try {
+            signLocation = new Location(Bukkit.getWorld(UUID.fromString(locationParts[0])),
+                    Double.parseDouble(locationParts[1]), Double.parseDouble(locationParts[2]),
+                    Double.parseDouble(locationParts[3]));
+        } catch (NumberFormatException exception) {
+            throw new InvalidConfigurationException("Invalid sign coordinates");
+        }
+
+        double cost = signSection.getDouble(key + ".cost");
+        UUID playerId = UUID.fromString(Objects.requireNonNull(signSection.getString(key + ".playerId")));
+
+        TrackedSign trackedSign = new TrackedSign(playerId, cost);
+        trackedSigns.put(signLocation, trackedSign);
+    }
+
+    /**
+     * Saves the managed tracked signs to the data file
+     *
+     * @throws IOException <p>If unable to write to the data file</p>
+     */
+    private static void saveTrackedSigns() throws IOException {
+        YamlConfiguration configuration = YamlConfiguration.loadConfiguration(signsFile);
+        ConfigurationSection signSection = configuration.createSection("trackedSigns");
+
+        for (Location signLocation : trackedSigns.keySet()) {
+            TrackedSign sign = trackedSigns.get(signLocation);
+            String locationString = Objects.requireNonNull(signLocation.getWorld()).getUID() + "," +
+                    signLocation.getBlockX() + "," + signLocation.getBlockY() + "," + signLocation.getBlockZ();
+            signSection.set(locationString + ".cost", sign.getCost());
+            signSection.set(locationString + ".playerId", sign.getPlayerId());
+        }
+        configuration.save(signsFile);
+    }
+
+}