Chest Analyzer rework

- Added search
- Added NPC sell prices
- Added 'deselect/hide item'
- Added list of coords for highlighted chests
- Added info button (`[?]`)
- Added 'price type' column

13 files changed, 418 insertions, 90 deletions

diff --git a/CHANGELOG.md b/CHANGELOG.md
index b85a8fb..f398963 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -15,6 +15,12 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
     - added new slayers (enderman + blaze)
   - `/moo analyzeIsland`: added new minions (mainly Crimson Isle related)
 - `/moo analyzeIsland`: Added chests and hopper counters
+- `/moo analyzeChests`: Chest Analyzer rework:
+  - Added search
+  - Added NPC sell prices (only used if an item has neither a Bazaar nor lowest BIN price, or if one of them is hidden)
+  - Added 'deselect/hide item' = not calculated in total price sum (right click inside GUI)
+  - Added list of coords for highlighted chests when searching for chests with a certain item (double click inside the GUI to search, hover the chat message to see coords)
+  - Added info button (`[?]`)
 
 ### Changed
 
diff --git a/README.md b/README.md
index 5de5ad9..ae4e7eb 100644
--- a/README.md
+++ b/README.md
@@ -27,7 +27,7 @@ It is a collection of different features mainly focused on Hypixel SkyBlock. ðŸ�
 | Feature                                                                 | Command/Usage                           |
 |-------------------------------------------------------------------------|-----------------------------------------|
 | Stalk SkyBlock stats of a player                                        | `/moo stalkskyblock`                    |
-| Analyze chests and their Bazaar & lowest BINs value on your private island | `/moo analyzeChests`                 |
+| Analyze chests and their Bazaar, lowest BINs, and NPC value on your private island | `/moo analyzeChests`         |
 | Analyze minions on a private island                                     | `/moo analyzeIsland`                    |
 | Improved Dungeon item tooltips (item quality + obtained floor; normalize dungeon item stats) | To normalize stats: Hold <kbd>shift</kbd> (configurable) while viewing a dungeon item tooltip |
 | Improved Dungeon Party Finder                                           | configure with `/moo config party`      |
diff --git a/src/main/java/de/cowtipper/cowlection/chesttracker/ChestOverviewGui.java b/src/main/java/de/cowtipper/cowlection/chesttracker/ChestOverviewGui.java
index 6851779..8907858 100644
--- a/src/main/java/de/cowtipper/cowlection/chesttracker/ChestOverviewGui.java
+++ b/src/main/java/de/cowtipper/cowlection/chesttracker/ChestOverviewGui.java
@@ -1,6 +1,8 @@
 package de.cowtipper.cowlection.chesttracker;
 
+import com.google.common.collect.Lists;
 import de.cowtipper.cowlection.Cowlection;
+import de.cowtipper.cowlection.chesttracker.data.ItemData;
 import de.cowtipper.cowlection.config.MooConfig;
 import de.cowtipper.cowlection.search.GuiTooltip;
 import de.cowtipper.cowlection.util.*;
@@ -17,14 +19,22 @@ import net.minecraftforge.fml.client.config.GuiButtonExt;
 import net.minecraftforge.fml.client.config.GuiCheckBox;
 import net.minecraftforge.fml.common.eventhandler.SubscribeEvent;
 import net.minecraftforge.fml.common.gameevent.TickEvent;
+import org.apache.commons.lang3.StringUtils;
+import org.lwjgl.input.Mouse;
 
 import java.io.IOException;
 import java.util.*;
 
 public class ChestOverviewGui extends GuiScreen {
+    private static final String SEARCH_QUERY_PLACE_HOLDER = "Search for...";
+
     private ItemOverview itemOverview;
     private List<GuiTooltip> guiTooltips;
+    private GuiTextField fieldSearchQuery;
+    private String searchQuery;
+    private boolean isPlaceholderSearchQuery;
     private GuiButton btnClose;
+    private GuiButton btnHelp;
     private GuiButton btnUpdatePrices;
     private GuiButton btnCopy;
     private GuiCheckBox chkShowNoPriceItems;
@@ -32,6 +42,7 @@ public class ChestOverviewGui extends GuiScreen {
     private GuiCheckBox chkShowBazaarItems;
     private GuiButton btnBazaarInstantOrOffer;
     private boolean useBazaarInstantSellPrices;
+    private GuiCheckBox chkShowNpcItems;
     private AbortableRunnable updatePrices;
     private final String screenTitle;
     private final Cowlection main;
@@ -47,28 +58,46 @@ public class ChestOverviewGui extends GuiScreen {
     public void initGui() {
         this.guiTooltips = new ArrayList<>();
         // close
-        this.buttonList.add(this.btnClose = new GuiButtonExt(1, this.width - 25, 3, 22, 20, EnumChatFormatting.RED + "X"));
+        this.buttonList.add(this.btnClose = new GuiButtonExt(1, this.width - 25, 3, 20, 20, EnumChatFormatting.RED + "X"));
         addTooltip(btnClose, Arrays.asList(EnumChatFormatting.RED + "Close interface", "" + EnumChatFormatting.GRAY + EnumChatFormatting.ITALIC + "Hint:" + EnumChatFormatting.RESET + " alternatively press ESC"));
+        // help
+        this.buttonList.add(this.btnHelp = new GuiButtonExt(2, this.width - 47, 3, 20, 20, "?"));
+        addTooltip(btnHelp, Arrays.asList("" + EnumChatFormatting.GOLD + EnumChatFormatting.BOLD + screenTitle,
+                EnumChatFormatting.GRAY + "You can set the default settings via " + EnumChatFormatting.YELLOW + "/moo config chest",
+                "",
+                EnumChatFormatting.WHITE + "  ‣ " + EnumChatFormatting.GOLD + "double click" + EnumChatFormatting.WHITE + ": highlight chests with selected item; hover over the chat message to see chest coords",
+                EnumChatFormatting.WHITE + "  ‣ " + EnumChatFormatting.GOLD + "right click" + EnumChatFormatting.WHITE + ": exclude item from sell value calculation"));
         // update prices
-        this.buttonList.add(this.btnUpdatePrices = new GuiButton(20, this.width - 125, 5, 90, 16, "⟳ Update prices"));
-        addTooltip(btnUpdatePrices, Arrays.asList(EnumChatFormatting.YELLOW + "‣ Get latest Bazaar prices from Hypixel API", EnumChatFormatting.WHITE + "   (only once per minute)",
-                EnumChatFormatting.YELLOW + "‣ Get latest lowest BINs from Moulberry's API", EnumChatFormatting.WHITE + "   (only once every 5 minutes)"));
+        this.buttonList.add(this.btnUpdatePrices = new GuiButton(20, this.width - 145, 5, 90, 16, "⟳ Update prices"));
+        addTooltip(btnUpdatePrices, Arrays.asList(EnumChatFormatting.YELLOW + "‣ Get latest " + EnumChatFormatting.GOLD + "Bazaar prices " + EnumChatFormatting.YELLOW + "from Hypixel API", EnumChatFormatting.WHITE + "   (only once per minute)",
+                EnumChatFormatting.YELLOW + "‣ Get latest " + EnumChatFormatting.GOLD + "lowest BINs " + EnumChatFormatting.YELLOW + "from Moulberry's API", EnumChatFormatting.WHITE + "   (only once every 5 minutes)",
+                EnumChatFormatting.YELLOW + "‣ Get latest " + EnumChatFormatting.GOLD + "NPC sell prices " + EnumChatFormatting.YELLOW + "from Hypixel API", EnumChatFormatting.WHITE + "   (only once every 15 minutes)"));
         // copy to clipboard
-        this.buttonList.add(this.btnCopy = new GuiButton(21, this.width - 240, 5, 110, 16, "⎘ Copy to clipboard"));
+        this.buttonList.add(this.btnCopy = new GuiButton(21, this.width - 222, 5, 74, 16, "⎘ Copy data"));
         addTooltip(btnCopy, Collections.singletonList(EnumChatFormatting.YELLOW + "Copied data can be pasted into e.g. Google Spreadsheets"));
+        // input: search
+        this.fieldSearchQuery = new GuiTextField(23, this.fontRendererObj, this.width - 330, 6, 100, 15);
+        addTooltip(fieldSearchQuery, Collections.singletonList(EnumChatFormatting.YELLOW + "Search by item name and item id"));
+        this.fieldSearchQuery.setMaxStringLength(42);
+        this.isPlaceholderSearchQuery = StringUtils.isEmpty(searchQuery) || SEARCH_QUERY_PLACE_HOLDER.equals(searchQuery);
+        this.fieldSearchQuery.setText(isPlaceholderSearchQuery ? SEARCH_QUERY_PLACE_HOLDER : searchQuery);
 
         // toggle: use insta-sell or sell offer prices
-        this.buttonList.add(this.btnBazaarInstantOrOffer = new GuiButton(15, this.width - 165, this.height - 52, 130, 14, MooConfig.useInstantSellBazaarPrices() ? "Use Instant-Sell prices" : "Use Sell Offer prices"));
-        addTooltip(btnBazaarInstantOrOffer, Collections.singletonList(EnumChatFormatting.YELLOW + "Use " + EnumChatFormatting.GOLD + "Instant-Sell " + EnumChatFormatting.YELLOW + "or " + EnumChatFormatting.GOLD + "Sell Offer" + EnumChatFormatting.YELLOW + " prices?"));
+        this.buttonList.add(this.btnBazaarInstantOrOffer = new GuiButton(15, this.width - 78, this.height - 51, 75, 12, MooConfig.useInstantSellBazaarPrices() ? "via Insta-Sell" : "via Sell Offer"));
+        addTooltip(btnBazaarInstantOrOffer, Collections.singletonList(EnumChatFormatting.WHITE + "Bazaar items: " + EnumChatFormatting.YELLOW + "Use " + EnumChatFormatting.GOLD + "Instant-Sell " + EnumChatFormatting.YELLOW + "or " + EnumChatFormatting.GOLD + "Sell Offer" + EnumChatFormatting.YELLOW + " prices?"));
         // checkbox: show/hide Bazaar items
-        this.buttonList.add(this.chkShowBazaarItems = new GuiCheckBox(10, this.width - 162, this.height - 36, " Show Bazaar items", MooConfig.chestAnalyzerShowBazaarItems));
+        this.buttonList.add(this.chkShowBazaarItems = new GuiCheckBox(10, this.width - 162, this.height - 50, " Bazaar items", MooConfig.chestAnalyzerShowBazaarItems));
         addTooltip(chkShowBazaarItems, Collections.singletonList(EnumChatFormatting.YELLOW + "Should items with a " + EnumChatFormatting.GOLD + "Bazaar " + EnumChatFormatting.YELLOW + "price be displayed?"));
         // checkbox: show/hide lowest BIN items
-        this.buttonList.add(this.chkShowLowestBinItems = new GuiCheckBox(10, this.width - 162, this.height - 25, " Show lowest BIN items", MooConfig.chestAnalyzerShowLowestBinItems));
+        this.buttonList.add(this.chkShowLowestBinItems = new GuiCheckBox(11, this.width - 162, this.height - 39, " lowest BIN items", MooConfig.chestAnalyzerShowLowestBinItems));
         addTooltip(chkShowLowestBinItems, Collections.singletonList(EnumChatFormatting.YELLOW + "Should items with a " + EnumChatFormatting.GOLD + "lowest BIN " + EnumChatFormatting.YELLOW + "price be displayed?"));
+        // checkbox: show/hide NPC items
+        this.buttonList.add(this.chkShowNpcItems = new GuiCheckBox(12, this.width - 162, this.height - 28, " NPC items", MooConfig.chestAnalyzerShowNpcItems));
+        addTooltip(chkShowNpcItems, Lists.newArrayList(EnumChatFormatting.YELLOW + "Should items with an " + EnumChatFormatting.GOLD + "NPC sell " + EnumChatFormatting.YELLOW + "price be displayed?",
+                EnumChatFormatting.RED + "(NPC sell price is only used if an item has neither a Bazaar nor lowest BIN price, or if one of them is hidden)"));
         // checkbox: show/hide items without a price
-        this.buttonList.add(this.chkShowNoPriceItems = new GuiCheckBox(10, this.width - 162, this.height - 14, " Show items without price", MooConfig.chestAnalyzerShowNoPriceItems));
-        addTooltip(chkShowNoPriceItems, Collections.singletonList(EnumChatFormatting.YELLOW + "Should items " + EnumChatFormatting.GOLD + "without " + EnumChatFormatting.YELLOW + "a Bazaar or BIN price be displayed?"));
+        this.buttonList.add(this.chkShowNoPriceItems = new GuiCheckBox(13, this.width - 162, this.height - 15, " items without price", MooConfig.chestAnalyzerShowNoPriceItems));
+        addTooltip(chkShowNoPriceItems, Collections.singletonList(EnumChatFormatting.YELLOW + "Should items " + EnumChatFormatting.GOLD + "without " + EnumChatFormatting.YELLOW + "a Bazaar, BIN, or NPC price be displayed?"));
         // main item gui
         this.itemOverview = new ItemOverview();
     }
@@ -79,10 +108,23 @@ public class ChestOverviewGui extends GuiScreen {
     }
 
     @Override
+    public void updateScreen() {
+        super.updateScreen();
+        fieldSearchQuery.updateCursorCounter();
+    }
+
+    @Override
     public void drawScreen(int mouseX, int mouseY, float partialTicks) {
-        btnUpdatePrices.enabled = updatePrices == null && (main.getChestTracker().allowUpdateBazaar() || main.getChestTracker().allowUpdateLowestBins());
+        btnUpdatePrices.enabled = updatePrices == null && main.getChestTracker().allowAnyPriceUpdate();
         itemOverview.drawScreen(mouseX, mouseY, partialTicks);
         this.drawString(this.fontRendererObj, this.screenTitle, itemOverview.getLeftX(), 10, 0xFFCC00);
+        this.fieldSearchQuery.drawTextBox();
+        // left of checkboxes: price type indicators
+        this.drawString(this.fontRendererObj, ItemData.PriceType.BAZAAR.getIndicator(), chkShowBazaarItems.xPosition - 5 - this.fontRendererObj.getStringWidth(ItemData.PriceType.BAZAAR.getIndicator()), chkShowBazaarItems.yPosition + 2, 0x666666);
+        this.drawString(this.fontRendererObj, ItemData.PriceType.LOWEST_BIN.getIndicator(), chkShowLowestBinItems.xPosition - 5 - this.fontRendererObj.getStringWidth(ItemData.PriceType.LOWEST_BIN.getIndicator()), chkShowLowestBinItems.yPosition + 2, 0x666666);
+        this.drawString(this.fontRendererObj, ItemData.PriceType.NPC_SELL.getIndicator(), chkShowNpcItems.xPosition - 5 - this.fontRendererObj.getStringWidth(ItemData.PriceType.NPC_SELL.getIndicator()), chkShowNpcItems.yPosition + 2, 0x666666);
+        this.drawString(this.fontRendererObj, ItemData.PriceType.NONE.getIndicator(), chkShowNoPriceItems.xPosition - 5 - this.fontRendererObj.getStringWidth(ItemData.PriceType.NONE.getIndicator()), chkShowNoPriceItems.yPosition + 2, 0x666666);
+
         super.drawScreen(mouseX, mouseY, partialTicks);
         itemOverview.drawScreenPost(mouseX, mouseY);
         for (GuiTooltip guiTooltip : guiTooltips) {
@@ -112,14 +154,17 @@ public class ChestOverviewGui extends GuiScreen {
         if (button.enabled) {
             if (button == btnClose) {
                 this.mc.displayGuiScreen(null);
+            } else if (button == btnHelp) {
+                mc.displayGuiScreen(new GuiChat("/moo config chest"));
             } else if (button == btnUpdatePrices) {
                 btnUpdatePrices.enabled = false;
-                EnumSet<ChestTracker.Updating> updating = this.main.getChestTracker().refreshPriceCache();
-                if (updating.size() > 1) {
+                EnumSet<ItemData.PriceType> updating = this.main.getChestTracker().refreshPriceCache();
+                if (updating.size() > 0) {
                     updatePrices = new AbortableRunnable() {
                         private int retries = 20 * 20; // retry for up to 20 seconds
                         private final long previousBazaarUpdate = ChestTracker.lastBazaarUpdate;
                         private final long previousLowestBinsUpdate = ChestTracker.lastLowestBinsUpdate;
+                        private final long previousNpcSellUpdate = ChestTracker.lastNpcSellUpdate;
 
                         @SubscribeEvent
                         public void onTickCheckPriceDataUpdated(TickEvent.ClientTickEvent e) {
@@ -130,8 +175,9 @@ public class ChestOverviewGui extends GuiScreen {
                                     return;
                                 }
                                 retries--;
-                                if (updating.contains(ChestTracker.Updating.BAZAAR) && previousBazaarUpdate == ChestTracker.lastBazaarUpdate
-                                        || updating.contains(ChestTracker.Updating.LOWEST_BINS) && previousLowestBinsUpdate == ChestTracker.lastLowestBinsUpdate) {
+                                if (updating.contains(ItemData.PriceType.BAZAAR) && previousBazaarUpdate == ChestTracker.lastBazaarUpdate
+                                        || updating.contains(ItemData.PriceType.LOWEST_BIN) && previousLowestBinsUpdate == ChestTracker.lastLowestBinsUpdate
+                                        || updating.contains(ItemData.PriceType.NPC_SELL) && previousNpcSellUpdate == ChestTracker.lastNpcSellUpdate) {
                                     // cache(s) have not updated yet, retry next tick
                                     return;
                                 }
@@ -158,25 +204,36 @@ public class ChestOverviewGui extends GuiScreen {
                     };
                     new TickDelay(updatePrices, 20); // 1 second delay + retrying for 20 seconds, making sure price data got updated
                 }
-            } else if (button == chkShowNoPriceItems || button == chkShowLowestBinItems || button == chkShowBazaarItems) {
+            } else if (button == chkShowNoPriceItems || button == chkShowNpcItems || button == chkShowLowestBinItems || button == chkShowBazaarItems) {
                 this.itemOverview.reloadItemData();
             } else if (button == btnCopy) {
-                StringBuilder allItemData = new StringBuilder("Item\tItem (formatted)\tAmount\tPrice (instant-sell)\tValue (instant-sell)\tPrice (sell offer)\tValue (sell offer)\tPrice (lowest BIN)\tValue (lowest BIN)");
+                StringBuilder allItemData = new StringBuilder("Item\tItem (formatted)\tAmount\tPrice (instant-sell)\tValue (instant-sell)\tPrice (sell offer)\tValue (sell offer)\tPrice (lowest BIN)\tValue (lowest BIN)\tPrice (NPC sell)\tValue(NPC sell)");
                 for (ItemData itemData : itemOverview.itemDataHolder) {
                     allItemData.append(itemData.toCopyableFormat());
                 }
                 allItemData.append("\n\n").append("Bazaar value (instant-sell):\t").append(itemOverview.summedValueInstaSell)
                         .append("\n").append("Bazaar value (sell offer):\t").append(itemOverview.summedValueSellOffer)
-                        .append("\n").append("Auction House value (lowest BINs):\t").append(itemOverview.summedValueLowestBins);
+                        .append("\n").append("Auction House value (lowest BINs):\t").append(itemOverview.summedValueLowestBins)
+                        .append("\n").append("NPC sell value (NPC sell):\t").append(itemOverview.summedValueNpcSell);
                 GuiScreen.setClipboardString(allItemData.toString());
             } else if (button == btnBazaarInstantOrOffer) {
-                this.btnBazaarInstantOrOffer.displayString = this.useBazaarInstantSellPrices ? "Use Sell Offer prices" : "Use Instant-Sell prices";
+                this.btnBazaarInstantOrOffer.displayString = this.useBazaarInstantSellPrices ? "via Sell Offer" : "via Insta-Sell";
                 this.useBazaarInstantSellPrices = !this.useBazaarInstantSellPrices;
                 this.itemOverview.reloadItemData();
             }
         }
     }
 
+    @Override
+    protected void keyTyped(char typedChar, int keyCode) throws IOException {
+        super.keyTyped(typedChar, keyCode);
+        if (this.fieldSearchQuery.textboxKeyTyped(typedChar, keyCode)) {
+            searchQuery = this.fieldSearchQuery.getText();
+            isPlaceholderSearchQuery = SEARCH_QUERY_PLACE_HOLDER.equals(searchQuery);
+            itemOverview.reloadItemData();
+        }
+    }
+
     private void stopPriceUpdateChecker() {
         if (updatePrices != null) {
             // there is still a price update-checker running, stop it
@@ -199,6 +256,15 @@ public class ChestOverviewGui extends GuiScreen {
     }
 
     @Override
+    protected void mouseClicked(int mouseX, int mouseY, int mouseButton) throws IOException {
+        super.mouseClicked(mouseX, mouseY, mouseButton);
+        this.fieldSearchQuery.mouseClicked(mouseX, mouseY, mouseButton);
+        if (this.fieldSearchQuery.isFocused() && this.isPlaceholderSearchQuery) {
+            this.fieldSearchQuery.setText("");
+        }
+    }
+
+    @Override
     public void handleMouseInput() throws IOException {
         super.handleMouseInput();
 
@@ -218,12 +284,14 @@ public class ChestOverviewGui extends GuiScreen {
         private long summedValueInstaSell;
         private long summedValueSellOffer;
         private long summedValueLowestBins;
+        private long summedValueNpcSell;
         private long summedTotalValue;
         private boolean showBazaarItems;
         private boolean showLowestBinItems;
+        private boolean showNpcItems;
 
         ItemOverview() {
-            super(ChestOverviewGui.this.mc, ChestOverviewGui.this.width, ChestOverviewGui.this.height, 32, ChestOverviewGui.this.height - 54, 16);
+            super(ChestOverviewGui.this.mc, ChestOverviewGui.this.width, ChestOverviewGui.this.height, 26, ChestOverviewGui.this.height - 54, 16);
             this.setShowSelectionBox(false);
             // space above first entry for control buttons
             int headerPadding = 20;
@@ -233,32 +301,54 @@ public class ChestOverviewGui extends GuiScreen {
         }
 
         private void reloadItemData() {
+            showBazaarItems = ChestOverviewGui.this.chkShowBazaarItems.isChecked();
+            showLowestBinItems = ChestOverviewGui.this.chkShowLowestBinItems.isChecked();
+            showNpcItems = ChestOverviewGui.this.chkShowNpcItems.isChecked();
+
+            EnumSet<ItemData.PriceType> visiblePriceTypes = EnumSet.of(
+                    showBazaarItems ? ItemData.PriceType.BAZAAR : ItemData.PriceType.NONE,
+                    showLowestBinItems ? ItemData.PriceType.LOWEST_BIN : ItemData.PriceType.NONE,
+                    showNpcItems ? ItemData.PriceType.NPC_SELL : ItemData.PriceType.NONE
+            );
+
             boolean useInstantSellPrices = ChestOverviewGui.this.useBazaarInstantSellPrices;
-            itemDataHolder = main.getChestTracker().getAnalysisResult(orderBy, orderDesc, useInstantSellPrices);
+            itemDataHolder = main.getChestTracker().getAnalysisResult((isPlaceholderSearchQuery ? null : ChestOverviewGui.this.searchQuery), orderBy, orderDesc, visiblePriceTypes, useInstantSellPrices);
             summedValueInstaSell = 0;
             summedValueSellOffer = 0;
             summedValueLowestBins = 0;
+            summedValueNpcSell = 0;
             summedTotalValue = 0;
-            showBazaarItems = ChestOverviewGui.this.chkShowBazaarItems.isChecked();
-            showLowestBinItems = ChestOverviewGui.this.chkShowLowestBinItems.isChecked();
             boolean showNoPriceItems = ChestOverviewGui.this.chkShowNoPriceItems.isChecked();
 
             for (Iterator<ItemData> iterator = itemDataHolder.iterator(); iterator.hasNext(); ) {
                 ItemData itemData = iterator.next();
+                boolean isVisibleItem = !itemData.isHidden();
                 switch (itemData.getPriceType()) {
                     case BAZAAR:
-                        summedValueInstaSell += itemData.getBazaarInstantSellValue();
-                        summedValueSellOffer += itemData.getBazaarSellOfferValue();
+                        if (isVisibleItem) {
+                            summedValueInstaSell += itemData.getBazaarInstantSellValue();
+                            summedValueSellOffer += itemData.getBazaarSellOfferValue();
+                        }
                         if (showBazaarItems) {
                             continue;
                         }
                         break;
                     case LOWEST_BIN:
-                        summedValueLowestBins += itemData.getLowestBinValue();
+                        if (isVisibleItem) {
+                            summedValueLowestBins += itemData.getLowestBinValue();
+                        }
                         if (showLowestBinItems) {
                             continue;
                         }
                         break;
+                    case NPC_SELL:
+                        if (isVisibleItem) {
+                            summedValueNpcSell += itemData.getNpcSellValue();
+                        }
+                        if (showNpcItems) {
+                            continue;
+                        }
+                        break;
                     default: // case NONE:
                         if (showNoPriceItems) {
                             continue;
@@ -274,6 +364,9 @@ public class ChestOverviewGui extends GuiScreen {
             if (showBazaarItems) {
                 summedTotalValue += (useInstantSellPrices ? summedValueInstaSell : summedValueSellOffer);
             }
+            if (showNpcItems) {
+                summedTotalValue += summedValueNpcSell;
+            }
         }
 
         @Override
@@ -357,6 +450,26 @@ public class ChestOverviewGui extends GuiScreen {
         }
 
         @Override
+        public void handleMouseInput() {
+            super.handleMouseInput();
+            if (Mouse.getEventButton() == /* right click */ 1 && Mouse.getEventButtonState() && this.isMouseYWithinSlotBounds(this.mouseY)) {
+                int slotLeft = (this.width - this.getListWidth()) / 2;
+                int slotRight = (this.width + this.getListWidth()) / 2;
+                int k = this.mouseY - this.top - this.headerPadding + (int) this.amountScrolled - 4;
+                int clickedSlot = k / this.slotHeight;
+
+                if (clickedSlot < this.getSize() && this.mouseX >= slotLeft && this.mouseX <= slotRight && clickedSlot >= 0 && k >= 0) {
+                    // right-clicked a slot
+                    ItemData itemData = itemDataHolder.get(clickedSlot);
+                    if (itemData != null) {
+                        main.getChestTracker().toggleHiddenStateForItem(itemData.getKey());
+                        this.reloadItemData();
+                    }
+                }
+            }
+        }
+
+        @Override
         protected boolean isSelected(int slotIndex) {
             return false;
         }
@@ -371,12 +484,12 @@ public class ChestOverviewGui extends GuiScreen {
         }
 
         @Override
-        protected void drawSlot(int entryID, int x, int y, int z, int mouseXIn, int mouseYIn) {
+        protected void drawSlot(int entryId, int x, int y, int z, int mouseXIn, int mouseYIn) {
             if (!isMouseYWithinSlotBounds(y + 5)) {
                 // slot isn't visible anyways...
                 return;
             }
-            ItemData itemData = itemDataHolder.get(entryID);
+            ItemData itemData = itemDataHolder.get(entryId);
 
             // render item icon without shadows
             GlStateManager.enableRescaleNormal();
@@ -393,46 +506,53 @@ public class ChestOverviewGui extends GuiScreen {
             if (itemName.length() != itemData.getName().length()) {
                 itemName += "…";
             }
-            fontRenderer.drawStringWithShadow(itemName, itemNameXPos, y + 1, entryID % 2 == 0 ? 0xFFFFFF : 0x909090);
-            fontRenderer.drawStringWithShadow(itemAmount, amountXPos, y + 1, entryID % 2 == 0 ? 0xFFFFFF : 0x909090);
+            fontRenderer.drawStringWithShadow(itemName, itemNameXPos, y + 1, entryId % 2 == 0 ? 0xFFFFFF : 0x909090);
+            fontRenderer.drawStringWithShadow(itemAmount, amountXPos, y + 1, entryId % 2 == 0 ? 0xFFFFFF : 0x909090);
 
             boolean useInstantSellPrices = ChestOverviewGui.this.useBazaarInstantSellPrices;
             double itemPrice = itemData.getPrice(useInstantSellPrices);
             String bazaarOrBinPrice = itemPrice > 0 ? Utils.formatDecimal(itemPrice) : EnumChatFormatting.DARK_GRAY + "?";
-            fontRenderer.drawStringWithShadow(bazaarOrBinPrice, x + Column.PRICE_EACH.getXOffset() - fontRenderer.getStringWidth(bazaarOrBinPrice), y + 1, entryID % 2 == 0 ? 0xFFFFFF : 0x909090);
+            fontRenderer.drawStringWithShadow(bazaarOrBinPrice, x + Column.PRICE_EACH.getXOffset() - fontRenderer.getStringWidth(bazaarOrBinPrice), y + 1, entryId % 2 == 0 ? 0xFFFFFF : 0x909090);
 
             double itemValue = itemData.getPriceSum(useInstantSellPrices);
             String bazaarOrBinValue = itemPrice > 0 ? Utils.formatNumber(itemValue) : EnumChatFormatting.DARK_GRAY + "?";
-            fontRenderer.drawStringWithShadow(bazaarOrBinValue, x + Column.PRICE_SUM.getXOffset() - fontRenderer.getStringWidth(bazaarOrBinValue), y + 1, entryID % 2 == 0 ? 0xFFFFFF : 0x909090);
+            fontRenderer.drawStringWithShadow(bazaarOrBinValue, x + Column.PRICE_SUM.getXOffset() - fontRenderer.getStringWidth(bazaarOrBinValue), y + 1, entryId % 2 == 0 ? 0xFFFFFF : 0x909090);
+
+            String itemPriceType = itemData.getPriceType().getIndicator();
+            fontRenderer.drawStringWithShadow(itemPriceType, x + Column.PRICE_TYPE.getXOffset() - fontRenderer.getStringWidth(itemPriceType), y + 1, entryId % 2 == 0 ? 0xFFFFFF : 0x909090);
+
+            if (itemData.isHidden()) {
+                Gui.drawRect(x, y - 3, x + getListWidth(), y - 3 + slotHeight, 0xdd444444);
+            }
         }
 
         public void drawScreenPost(int mouseX, int mouseY) {
-            int xMin = getLeftX();
-            FontRenderer fontRenderer = ChestOverviewGui.this.fontRendererObj;
+            GlStateManager.pushMatrix();
+            float scaleFactor = 0.9f;
+            GlStateManager.scale(scaleFactor, scaleFactor, 0);
 
             boolean useInstantSellPrices = ChestOverviewGui.this.useBazaarInstantSellPrices;
 
-            String bazaarValueInstantSell = ((showBazaarItems && useInstantSellPrices) ? EnumChatFormatting.WHITE : EnumChatFormatting.DARK_GRAY) + "∑ Bazaar value (instant-sell prices): " + (summedValueInstaSell > 0 ? Utils.formatNumber(summedValueInstaSell) : EnumChatFormatting.DARK_GRAY + "―"); // sum
-            fontRenderer.drawStringWithShadow(bazaarValueInstantSell, xMin + 175 - fontRenderer.getStringWidth("∑ Bazaar value (instant-sell prices): "), ChestOverviewGui.this.height - 50, 0xdddddd);
-            String bazaarValueSellOffer = ((showBazaarItems && !useInstantSellPrices) ? EnumChatFormatting.WHITE : EnumChatFormatting.DARK_GRAY) + "∑ Bazaar value (sell offer prices): " + (summedValueSellOffer > 0 ? Utils.formatNumber(summedValueSellOffer) : EnumChatFormatting.DARK_GRAY + "―"); // sum
-            fontRenderer.drawStringWithShadow(bazaarValueSellOffer, xMin + 175 - fontRenderer.getStringWidth("∑ Bazaar value (sell offer prices): "), ChestOverviewGui.this.height - 39, 0xdddddd);
-            String lowestBinValue = ((showLowestBinItems) ? EnumChatFormatting.WHITE : EnumChatFormatting.DARK_GRAY) + "∑ Auction House value (lowest BINs): " + (summedValueLowestBins > 0 ? Utils.formatNumber(summedValueLowestBins) : EnumChatFormatting.DARK_GRAY + "―"); // sum
-            fontRenderer.drawStringWithShadow(lowestBinValue, xMin + 175 - fontRenderer.getStringWidth("∑ Auction House value (lowest BINs): "), ChestOverviewGui.this.height - 28, 0xdddddd);
-            String estimatedSellValue = ((showBazaarItems || showLowestBinItems) ? EnumChatFormatting.WHITE : EnumChatFormatting.DARK_GRAY)
-                    + "∑ estimated sell value ("
+            drawSummedValue(scaleFactor, showBazaarItems && useInstantSellPrices, summedValueInstaSell, "Bazaar value (instant-sell prices)", 52);
+            drawSummedValue(scaleFactor, showBazaarItems && !useInstantSellPrices, summedValueSellOffer, "Bazaar value (sell offer prices)", 43);
+            drawSummedValue(scaleFactor, showLowestBinItems, summedValueLowestBins, "Auction House value (lowest BINs)", 34);
+            drawSummedValue(scaleFactor, showNpcItems, summedValueNpcSell, "NPC value (NPC sell prices)", 25);
+
+            String estimatedTotalSellValue = "estimated sell value ("
                     + (showBazaarItems ? (useInstantSellPrices ? "insta" : "offer") : "")
                     + (showLowestBinItems ? (showBazaarItems ? "+" : "") + "BIN" : "")
-                    + "): ";
-            String totalValue = estimatedSellValue + (summedTotalValue > 0 ? EnumChatFormatting.WHITE + Utils.formatNumber(summedTotalValue) : EnumChatFormatting.DARK_GRAY + "―"); // sum
-            int estimatedTotalEndX = fontRenderer.drawStringWithShadow(totalValue, xMin + 175 - fontRenderer.getStringWidth(estimatedSellValue), ChestOverviewGui.this.height - 13, 0xdddddd);
+                    + (showNpcItems ? (showBazaarItems || showLowestBinItems ? "+" : "") + "NPC" : "") + ")";
+            int estimatedTotalEndX = drawSummedValue(scaleFactor, (showBazaarItems || showLowestBinItems || showNpcItems), summedTotalValue, estimatedTotalSellValue, 11);
 
-            drawRect(3, ChestOverviewGui.this.height - 16, estimatedTotalEndX + 2, ChestOverviewGui.this.height - 15, 0xff555555);
+            drawRect((int) (3 / scaleFactor), (int) ((ChestOverviewGui.this.height - 15) / scaleFactor), (int) ((estimatedTotalEndX + 2) / scaleFactor), (int) ((ChestOverviewGui.this.height - 14) / scaleFactor), 0xff555555);
+            GlStateManager.popMatrix();
 
             if (isMouseYWithinSlotBounds(mouseY)) {
                 int slotIndex = this.getSlotIndexFromScreenCoords(mouseX, mouseY);
 
                 if (slotIndex >= 0) {
                     // mouse is over a slot: maybe draw item tooltip
+                    int xMin = getLeftX();
                     int xMax = xMin + 16; // 16 = item icon width
                     if (mouseX < xMin || mouseX > xMax) {
                         // mouseX outside of valid item x values
@@ -447,6 +567,15 @@ public class ChestOverviewGui extends GuiScreen {
             }
         }
 
+        private int drawSummedValue(float scaleFactor, boolean isPriceTypeEnabled, long summedValue, String valueType, int yOffset) {
+            String valueText = (isPriceTypeEnabled ? EnumChatFormatting.WHITE : EnumChatFormatting.DARK_GRAY)
+                    + "∑ " + valueType + ": "
+                    + (summedValue > 0 ? Utils.formatNumber(summedValue) : EnumChatFormatting.DARK_GRAY + "-");
+            return ChestOverviewGui.this.fontRendererObj.drawStringWithShadow(valueText,
+                    Math.max(2, (getLeftX() + 175 - ChestOverviewGui.this.fontRendererObj.getStringWidth("∑ " + valueType + ": ")) / scaleFactor),
+                    (ChestOverviewGui.this.height - yOffset) / scaleFactor, 0xdddddd);
+        }
+
         /**
          * GuiSlot#drawScreen: x of slot
          */
@@ -458,8 +587,9 @@ public class ChestOverviewGui extends GuiScreen {
     public enum Column {
         ITEM_NAME("Item", 22),
         ITEM_AMOUNT("Amount", 200),
-        PRICE_EACH("Price", 260),
-        PRICE_SUM("Value", 330);
+        PRICE_EACH("Price", 275),
+        PRICE_SUM("Value", 360),
+        PRICE_TYPE("Type", 410);
 
         private final int xOffset;
         private final String name;
diff --git a/src/main/java/de/cowtipper/cowlection/chesttracker/ChestTracker.java b/src/main/java/de/cowtipper/cowlection/chesttracker/ChestTracker.java
index 34d4a44..a823401 100644
--- a/src/main/java/de/cowtipper/cowlection/chesttracker/ChestTracker.java
+++ b/src/main/java/de/cowtipper/cowlection/chesttracker/ChestTracker.java
@@ -1,11 +1,16 @@
 package de.cowtipper.cowlection.chesttracker;
 
 import de.cowtipper.cowlection.Cowlection;
+import de.cowtipper.cowlection.chesttracker.data.HyBazaarData;
+import de.cowtipper.cowlection.chesttracker.data.HyItemsData;
+import de.cowtipper.cowlection.chesttracker.data.ItemData;
+import de.cowtipper.cowlection.chesttracker.data.LowestBinsCache;
 import de.cowtipper.cowlection.data.DataHelper;
 import de.cowtipper.cowlection.data.HySkyBlockStats;
 import de.cowtipper.cowlection.util.ApiUtils;
 import de.cowtipper.cowlection.util.GsonUtils;
 import de.cowtipper.cowlection.util.MooChatComponent;
+import de.cowtipper.cowlection.util.Utils;
 import net.minecraft.init.Blocks;
 import net.minecraft.item.Item;
 import net.minecraft.item.ItemStack;
@@ -17,19 +22,23 @@ import net.minecraft.util.EnumChatFormatting;
 import net.minecraft.util.EnumFacing;
 import net.minecraftforge.common.MinecraftForge;
 import net.minecraftforge.common.util.Constants;
+import org.apache.commons.lang3.StringUtils;
 
 import java.util.*;
 
 public class ChestTracker {
     public static long lastBazaarUpdate;
     public static long lastLowestBinsUpdate;
+    public static long lastNpcSellUpdate;
     private final Map<BlockPos, List<ItemStack>> chestCache = new HashMap<>();
     private final Map<BlockPos, EnumFacing> doubleChestCache = new HashMap<>();
     private final Set<BlockPos> chestsWithWantedItem = new HashSet<>();
+    private final Set<String> hiddenItems = new HashSet<>();
     private Map<String, ItemData> analysisResult = new HashMap<>();
     private ChestInteractionListener chestInteractionListener;
     private HyBazaarData bazaarCache;
     private LowestBinsCache lowestBinsCache;
+    private Map<String, Double> npcSellCache;
     private final Cowlection main;
 
     public ChestTracker(Cowlection main) {
@@ -120,33 +129,61 @@ public class ChestTracker {
     /**
      * Returns ordered analysis result with prices
      */
-    public List<ItemData> getAnalysisResult(ChestOverviewGui.Column orderBy, boolean orderDesc, boolean useInstantSellPrices) {
+    public List<ItemData> getAnalysisResult(String searchQuery, ChestOverviewGui.Column orderBy, boolean orderDesc, EnumSet<ItemData.PriceType> visiblePriceTypes, boolean useInstantSellPrices) {
         List<ItemData> orderedAnalysisResult = new ArrayList<>();
-        // sort by bazaar value (most value first)
+
+        boolean checkBazaarPrices = bazaarCache != null && bazaarCache.isSuccess() && visiblePriceTypes.contains(ItemData.PriceType.BAZAAR);
+        boolean checkLowestBinPrices = lowestBinsCache != null && lowestBinsCache.size() > 0 && visiblePriceTypes.contains(ItemData.PriceType.LOWEST_BIN);
+        boolean checkNpcSellPrices = npcSellCache != null && npcSellCache.size() > 0 && visiblePriceTypes.contains(ItemData.PriceType.NPC_SELL);
+
+        boolean hasSearchQuery = StringUtils.isNotEmpty(searchQuery);
         for (Map.Entry<String, ItemData> itemEntry : analysisResult.entrySet()) {
+            ItemData itemData = itemEntry.getValue();
+
+            if (hasSearchQuery
+                    && !StringUtils.containsIgnoreCase(itemData.getKey(), searchQuery)
+                    && !StringUtils.containsIgnoreCase(EnumChatFormatting.getTextWithoutFormattingCodes(itemData.getName()), searchQuery)) {
+                // item doesn't match search query
+                continue;
+            }
             boolean foundPriceForItem = false;
-            if (bazaarCache != null && bazaarCache.isSuccess()) {
+
+            if (checkBazaarPrices) {
                 String productKey = itemEntry.getKey();
                 HyBazaarData.Product product = bazaarCache.getProduct(productKey);
                 if (product != null) {
                     // item is sold on bazaar!
-                    itemEntry.getValue().setBazaarInstantSellPrice(product.getInstantSellPrice());
-                    itemEntry.getValue().setBazaarSellOfferPrice(product.getSellOfferPrice());
+                    itemData.setBazaarInstantSellPrice(product.getInstantSellPrice());
+                    itemData.setBazaarSellOfferPrice(product.getSellOfferPrice());
                     foundPriceForItem = true;
                 }
             }
-            if (!foundPriceForItem && lowestBinsCache != null && lowestBinsCache.size() > 0) {
+            if (!foundPriceForItem && checkLowestBinPrices) {
                 String productKey = itemEntry.getKey().replace(':', '-');
                 Integer lowestBin = lowestBinsCache.get(productKey);
                 if (lowestBin != null) {
                     // item is sold via BIN
-                    itemEntry.getValue().setLowestBin(lowestBin);
+                    itemData.setLowestBin(lowestBin);
+                    foundPriceForItem = true;
                 }
             }
-            orderedAnalysisResult.add(itemEntry.getValue());
+            if (!foundPriceForItem && checkNpcSellPrices) {
+                String productKey = itemEntry.getKey();
+                Double npcSellPrice = npcSellCache.get(productKey);
+                if (npcSellPrice != null) {
+                    // item can be sold to NPC
+                    itemData.setNpcPrice(npcSellPrice);
+                    // foundPriceForItem = true;
+                }
+            }
+            itemData.setHidden(hiddenItems.contains(itemData.getKey()));
+            orderedAnalysisResult.add(itemData);
         }
         Comparator<ItemData> comparator;
         switch (orderBy) {
+            case PRICE_TYPE:
+                comparator = Comparator.comparing(ItemData::getPriceType).reversed();
+                break;
             case ITEM_NAME:
                 comparator = Comparator.comparing(ItemData::getName);
                 break;
@@ -180,6 +217,7 @@ public class ChestTracker {
         chestCache.clear();
         doubleChestCache.clear();
         chestsWithWantedItem.clear();
+        hiddenItems.clear();
         analysisResult.clear();
     }
 
@@ -234,10 +272,10 @@ public class ChestTracker {
         return doubleChestCache.getOrDefault(pos, EnumFacing.UP);
     }
 
-    public EnumSet<Updating> refreshPriceCache() {
-        EnumSet<Updating> updating = EnumSet.of(Updating.UNDEFINED);
+    public EnumSet<ItemData.PriceType> refreshPriceCache() {
+        EnumSet<ItemData.PriceType> updating = EnumSet.noneOf(ItemData.PriceType.class);
         if (allowUpdateBazaar()) {
-            updating.add(Updating.BAZAAR);
+            updating.add(ItemData.PriceType.BAZAAR);
             ApiUtils.fetchBazaarData(bazaarData -> {
                 if (bazaarData == null || !bazaarData.isSuccess()) {
                     main.getChatHelper().sendMessage(new MooChatComponent("Error: Couldn't get Bazaar data from Hypixel API! API might be down: check status.hypixel.net").red().setUrl("https://status.hypixel.net/"));
@@ -247,7 +285,7 @@ public class ChestTracker {
             });
         }
         if (allowUpdateLowestBins()) {
-            updating.add(Updating.LOWEST_BINS);
+            updating.add(ItemData.PriceType.LOWEST_BIN);
             ApiUtils.fetchLowestBins(lowestBins -> {
                 if (!lowestBins.hasData()) {
                     main.getChatHelper().sendMessage(new MooChatComponent("Error: Couldn't get lowest BINs from Moulberry's API! API might be down: check if " + ApiUtils.LOWEST_BINS + " is reachable.").red().setUrl(ApiUtils.LOWEST_BINS));
@@ -256,6 +294,23 @@ public class ChestTracker {
                 lastLowestBinsUpdate = System.currentTimeMillis();
             });
         }
+        if (allowUpdateNpcSell()) {
+            updating.add(ItemData.PriceType.NPC_SELL);
+            ApiUtils.fetchItemsData(itemsData -> {
+                this.npcSellCache = new HashMap<>();
+                if (itemsData == null || !itemsData.isSuccess()) {
+                    main.getChatHelper().sendMessage(new MooChatComponent("Error: Couldn't get Items data from Hypixel API! API might be down: check status.hypixel.net").red().setUrl("https://status.hypixel.net/"));
+                } else {
+                    for (HyItemsData.Item item : itemsData.getItems()) {
+                        if (item.getNpcSellPrice() > 0) {
+                            // item has a NPC sell price
+                            this.npcSellCache.put(item.getId(), item.getNpcSellPrice());
+                        }
+                    }
+                }
+                lastNpcSellUpdate = System.currentTimeMillis();
+            });
+        }
         return updating;
     }
 
@@ -273,40 +328,84 @@ public class ChestTracker {
         return lowestBinsCache == null || (System.currentTimeMillis() - lastLowestBinsUpdate) > 300000;
     }
 
+    /**
+     * Allow NPC sell prices update once every 15 minutes
+     */
+    public boolean allowUpdateNpcSell() {
+        return npcSellCache == null || (System.currentTimeMillis() - lastNpcSellUpdate) > 900000;
+    }
+
+    public boolean allowAnyPriceUpdate() {
+        return allowUpdateBazaar() || allowUpdateLowestBins() || allowUpdateNpcSell();
+    }
+
     public void markChestsWithWantedItem(String sbKey, int amount, String itemName) {
         // clear old search results
         chestsWithWantedItem.clear();
 
+        Map<BlockPos, Integer> chestsWithWantedItemsAndCount = new TreeMap<>();
+
         if (sbKey.endsWith("_ambiguous")) {
             sbKey = sbKey.substring(0, sbKey.length() - 10);
         }
-        int relevantChests = 0;
+        int mostWantedItemsInOneChest = 0;
         for (Map.Entry<BlockPos, List<ItemStack>> chestCache : chestCache.entrySet()) {
-            boolean hasItemBeenFoundInChest = false;
+            int foundWantedItemsInChest = 0;
             for (ItemStack item : chestCache.getValue()) {
                 String key = item.hasDisplayName() ? item.getDisplayName() : item.getUnlocalizedName();
                 if (item.hasTagCompound()) {
                     key = item.getTagCompound().getCompoundTag("ExtraAttributes").getString("id");
                 }
                 if (sbKey.equals(key)) {
-                    if (!hasItemBeenFoundInChest) {
-                        chestsWithWantedItem.add(chestCache.getKey());
-                        hasItemBeenFoundInChest = true;
-                        ++relevantChests;
-                    }
-                    amount -= item.stackSize;
+                    foundWantedItemsInChest += item.stackSize;
                 }
             }
+            if (foundWantedItemsInChest > 0) {
+                // chest was a match!
+                chestsWithWantedItemsAndCount.put(chestCache.getKey(), foundWantedItemsInChest);
+                if (foundWantedItemsInChest > mostWantedItemsInOneChest) {
+                    mostWantedItemsInOneChest = foundWantedItemsInChest;
+                }
+            }
+            amount -= foundWantedItemsInChest;
             if (amount <= 0) {
                 // already found all relevant chests
                 break;
             }
         }
-        main.getChatHelper().sendMessage(EnumChatFormatting.GREEN, "Chest Tracker & Analyzer is now highlighting " + EnumChatFormatting.LIGHT_PURPLE + relevantChests + EnumChatFormatting.GREEN + " chest" + (relevantChests > 1 ? "s" : "") + " with " + itemName
-                + EnumChatFormatting.GREEN + ". Re-opening the chest analysis results with " + EnumChatFormatting.GRAY + "/moo analyzeChests " + EnumChatFormatting.GREEN + "clears the current search.");
+
+        int relevantChestCount = chestsWithWantedItemsAndCount.size();
+        int relevantChestsCoordsLimit = 30;
+        int maxItemCountLength = Utils.formatNumber(mostWantedItemsInOneChest).length();
+        final MooChatComponent relevantChestCoordsHover = new MooChatComponent("Chests with ").gold().bold().appendSibling(new MooChatComponent(itemName).reset())
+                .appendFreshSibling(new MooChatComponent(StringUtils.repeat(' ', maxItemCountLength) + "        (x | y | z)").gray());
+
+        chestsWithWantedItemsAndCount.entrySet().stream()
+                .sorted(Map.Entry.comparingByValue(Comparator.reverseOrder()))
+                .limit(relevantChestsCoordsLimit)
+                .forEach(wantedChest -> {
+                    BlockPos chestPos = wantedChest.getKey();
+                    String itemCountInChest = StringUtils.leftPad(Utils.formatNumber(wantedChest.getValue()), maxItemCountLength, ' ');
+
+                    relevantChestCoordsHover.appendFreshSibling(new MooChatComponent(" " + EnumChatFormatting.YELLOW + itemCountInChest + EnumChatFormatting.DARK_GRAY + "x ➜ "
+                            + EnumChatFormatting.WHITE + chestPos.getX() + EnumChatFormatting.DARK_GRAY
+                            + " | " + EnumChatFormatting.WHITE + chestPos.getY() + EnumChatFormatting.DARK_GRAY
+                            + " | " + EnumChatFormatting.WHITE + chestPos.getZ()).white());
+                });
+        if (relevantChestCount > relevantChestsCoordsLimit) {
+            relevantChestCoordsHover.appendFreshSibling(new MooChatComponent("      + " + (relevantChestCount - relevantChestsCoordsLimit) + " more chests").gray());
+        }
+        main.getChatHelper().sendMessage(new MooChatComponent("Chest Tracker & Analyzer is now highlighting " + EnumChatFormatting.LIGHT_PURPLE + relevantChestCount + EnumChatFormatting.GREEN + " chest" + (relevantChestCount > 1 ? "s" : "") + " with " + itemName
+                + EnumChatFormatting.DARK_GREEN + " [hover for coords, click to re-open GUI]").green()
+                .setHover(relevantChestCoordsHover)
+                .setSuggestCommand("/moo analyzeChests", false));
+        chestsWithWantedItem.addAll(chestsWithWantedItemsAndCount.keySet());
     }
 
-    public enum Updating {
-        UNDEFINED, BAZAAR, LOWEST_BINS
+    public void toggleHiddenStateForItem(String key) {
+        boolean removed = hiddenItems.remove(key);
+        if (!removed) {
+            hiddenItems.add(key);
+        }
     }
 }
diff --git a/src/main/java/de/cowtipper/cowlection/chesttracker/HyBazaarData.java b/src/main/java/de/cowtipper/cowlection/chesttracker/data/HyBazaarData.java
index 38aba6f..17ffcf1 100644
--- a/src/main/java/de/cowtipper/cowlection/chesttracker/HyBazaarData.java
+++ b/src/main/java/de/cowtipper/cowlection/chesttracker/data/HyBazaarData.java
@@ -1,4 +1,4 @@
-package de.cowtipper.cowlection.chesttracker;
+package de.cowtipper.cowlection.chesttracker.data;
 
 import com.google.gson.annotations.SerializedName;
 
diff --git a/src/main/java/de/cowtipper/cowlection/chesttracker/data/HyItemsData.java b/src/main/java/de/cowtipper/cowlection/chesttracker/data/HyItemsData.java
new file mode 100644
index 0000000..be9a2c2
--- /dev/null
+++ b/src/main/java/de/cowtipper/cowlection/chesttracker/data/HyItemsData.java
@@ -0,0 +1,31 @@
+package de.cowtipper.cowlection.chesttracker.data;
+
+import java.util.List;
+
+@SuppressWarnings("unused")
+public class HyItemsData {
+    private boolean success;
+    @SuppressWarnings("MismatchedQueryAndUpdateOfCollection")
+    private List<Item> items;
+
+    public boolean isSuccess() {
+        return success;
+    }
+
+    public List<Item> getItems() {
+        return items;
+    }
+
+    public static class Item {
+        private String id;
+        private double npc_sell_price;
+
+        public String getId() {
+            return id;
+        }
+
+        public double getNpcSellPrice() {
+            return npc_sell_price;
+        }
+    }
+}
diff --git a/src/main/java/de/cowtipper/cowlection/chesttracker/ItemData.java b/src/main/java/de/cowtipper/cowlection/chesttracker/data/ItemData.java
index e9bae4e..616032d 100644
--- a/src/main/java/de/cowtipper/cowlection/chesttracker/ItemData.java
+++ b/src/main/java/de/cowtipper/cowlection/chesttracker/data/ItemData.java
@@ -1,4 +1,4 @@
-package de.cowtipper.cowlection.chesttracker;
+package de.cowtipper.cowlection.chesttracker.data;
 
 import net.minecraft.item.ItemStack;
 import net.minecraft.util.EnumChatFormatting;
@@ -11,7 +11,9 @@ public class ItemData {
     private double bazaarInstantSellPrice = 0;
     private double bazaarSellOfferPrice = 0;
     private int lowestBin = 0;
+    private double npcPrice = 0;
     private PriceType priceType;
+    private boolean isHidden = false;
 
     public ItemData(String key, ItemStack itemStack) {
         this.key = key;
@@ -44,6 +46,8 @@ public class ItemData {
                 return useInstantSellPrices ? bazaarInstantSellPrice : bazaarSellOfferPrice;
             case LOWEST_BIN:
                 return lowestBin;
+            case NPC_SELL:
+                return npcPrice;
             default:
                 return 0;
         }
@@ -55,6 +59,8 @@ public class ItemData {
                 return useInstantSellPrices ? getBazaarInstantSellValue() : getBazaarSellOfferValue();
             case LOWEST_BIN:
                 return getLowestBinValue();
+            case NPC_SELL:
+                return getNpcSellValue();
             default:
                 return 0;
         }
@@ -75,6 +81,11 @@ public class ItemData {
         this.priceType = PriceType.LOWEST_BIN;
     }
 
+    public void setNpcPrice(double npcPrice) {
+        this.npcPrice = npcPrice;
+        this.priceType = PriceType.NPC_SELL;
+    }
+
     public ItemData addAmount(int stackSize) {
         this.amount += stackSize;
         return this;
@@ -92,12 +103,28 @@ public class ItemData {
         return (long) amount * lowestBin;
     }
 
+    public long getNpcSellValue() {
+        return (long) Math.floor((long) amount * npcPrice);
+    }
+
     public PriceType getPriceType() {
         return priceType;
     }
 
+    public boolean isHidden() {
+        return isHidden;
+    }
+
+    public void setHidden(boolean hidden) {
+        isHidden = hidden;
+    }
+
     public String toCopyableFormat() {
-        return "\n" + EnumChatFormatting.getTextWithoutFormattingCodes(name) + "\t" + name + "\t" + amount + "\t" + toCopyableFormat(bazaarInstantSellPrice) + "\t" + toCopyableFormat(getBazaarInstantSellValue()) + "\t" + toCopyableFormat(bazaarSellOfferPrice) + "\t" + toCopyableFormat(getBazaarSellOfferValue()) + "\t" + toCopyableFormat(lowestBin) + "\t" + toCopyableFormat(getLowestBinValue());
+        return "\n" + EnumChatFormatting.getTextWithoutFormattingCodes(name) + "\t" + name + "\t" + amount + "\t"
+                + toCopyableFormat(bazaarInstantSellPrice) + "\t" + toCopyableFormat(getBazaarInstantSellValue()) + "\t"
+                + toCopyableFormat(bazaarSellOfferPrice) + "\t" + toCopyableFormat(getBazaarSellOfferValue()) + "\t"
+                + toCopyableFormat(lowestBin) + "\t" + toCopyableFormat(getLowestBinValue()) + "\t"
+                + toCopyableFormat(npcPrice) + "\t" + toCopyableFormat(getNpcSellValue());
     }
 
     private String toCopyableFormat(double value) {
@@ -105,6 +132,16 @@ public class ItemData {
     }
 
     public enum PriceType {
-        BAZAAR, LOWEST_BIN, NONE
+        LOWEST_BIN("BIN"), BAZAAR("BZ"), NPC_SELL("NPC"), NONE("-");
+
+        private final String indicator;
+
+        PriceType(String indicator) {
+            this.indicator = indicator;
+        }
+
+        public String getIndicator() {
+            return indicator;
+        }
     }
 }
diff --git a/src/main/java/de/cowtipper/cowlection/chesttracker/LowestBinsCache.java b/src/main/java/de/cowtipper/cowlection/chesttracker/data/LowestBinsCache.java
index adfeee6..344f6bb 100644
--- a/src/main/java/de/cowtipper/cowlection/chesttracker/LowestBinsCache.java
+++ b/src/main/java/de/cowtipper/cowlection/chesttracker/data/LowestBinsCache.java
@@ -1,4 +1,4 @@
-package de.cowtipper.cowlection.chesttracker;
+package de.cowtipper.cowlection.chesttracker.data;
 
 import java.util.HashMap;
 
diff --git a/src/main/java/de/cowtipper/cowlection/config/MooConfig.java b/src/main/java/de/cowtipper/cowlection/config/MooConfig.java
index fa1ec29..0183a76 100644
--- a/src/main/java/de/cowtipper/cowlection/config/MooConfig.java
+++ b/src/main/java/de/cowtipper/cowlection/config/MooConfig.java
@@ -78,6 +78,7 @@ public class MooConfig {
     public static boolean chestAnalyzerShowBazaarItems;
     private static String chestAnalyzerUseBazaarPrices;
     public static boolean chestAnalyzerShowLowestBinItems;
+    public static boolean chestAnalyzerShowNpcItems;
     public static boolean chestAnalyzerShowNoPriceItems;
     public static boolean chestAnalyzerShowCommandUsage;
     public static int tooltipToggleKeyBinding;
@@ -449,19 +450,25 @@ public class MooConfig {
         Property propNotifyServerAge = subCat.addConfigEntry(cfg.get(configCat.getConfigName(),
                 "notifyServerAge", true, "Show server age notifications?"));
 
-        // Sub-Category: Chest Analyzer (Bazaar & lowest BIN prices)
-        subCat = configCat.addSubCategory("Chest Tracker & Analyzer (Bazaar & lowest BIN prices)");
+        // Sub-Category: Chest Analyzer (Bazaar, lowest BIN, & NPC prices)
+        subCat = configCat.addSubCategory("Chest Tracker & Analyzer (Bazaar, lowest BIN, & NPC prices)");
         String analyzeCommand = "/moo analyzeChests";
         subCat.addExplanations("Use " + EnumChatFormatting.YELLOW + analyzeCommand + EnumChatFormatting.RESET + " to start tracking chests on your island! " + EnumChatFormatting.GREEN + "Then you can...",
                 EnumChatFormatting.GREEN + "  � " + EnumChatFormatting.RESET + "add chests by opening them; deselect chests by Sneaking + Right Click.",
                 EnumChatFormatting.GREEN + "  � " + EnumChatFormatting.RESET + "use " + EnumChatFormatting.YELLOW + analyzeCommand + EnumChatFormatting.RESET + " again to run the chest analysis.",
-                EnumChatFormatting.GREEN + "  � " + EnumChatFormatting.RESET + "use " + EnumChatFormatting.YELLOW + analyzeCommand + " stop" + EnumChatFormatting.RESET + " to stop the chest tracker and clear current results.");
+                EnumChatFormatting.GREEN + "  � " + EnumChatFormatting.RESET + "use " + EnumChatFormatting.YELLOW + analyzeCommand + " stop" + EnumChatFormatting.RESET + " to stop the chest tracker and clear current results.",
+                "",
+                EnumChatFormatting.GREEN + "Inside the GUI you can also:",
+                EnumChatFormatting.WHITE + "  ‣ " + EnumChatFormatting.GOLD + "double click" + EnumChatFormatting.WHITE + ": highlight chests with selected item; hover over the chat message to see chest coords",
+                EnumChatFormatting.WHITE + "  ‣ " + EnumChatFormatting.GOLD + "right click" + EnumChatFormatting.WHITE + ": exclude item from sell value calculation");
         Property propChestAnalyzerShowBazaarItems = subCat.addConfigEntry(cfg.get(configCat.getConfigName(),
                 "chestAnalyzerShowBazaarItems", true, "Show Bazaar items in Chest Tracker?"));
         Property propChestAnalyzerUseBazaarPrices = subCat.addConfigEntry(cfg.get(configCat.getConfigName(),
                 "chestAnalyzerUseBazaarPrices", "Instant-Sell", "Use Bazaar prices?", new String[]{"Instant-Sell", "Sell Offer"}));
         Property propChestAnalyzerShowLowestBinItems = subCat.addConfigEntry(cfg.get(configCat.getConfigName(),
                 "chestAnalyzerShowLowestBinItems", true, "Show lowest BIN items in Chest Tracker?"));
+        Property propChestAnalyzerShowNpcItems = subCat.addConfigEntry(cfg.get(configCat.getConfigName(),
+                "chestAnalyzerShowNpcItems", true, "Show NPC items in Chest Tracker?"));
         Property propChestAnalyzerShowNoPriceItems = subCat.addConfigEntry(cfg.get(configCat.getConfigName(),
                 "chestAnalyzerShowNoPriceItems", false, "Show items without price in Chest Tracker?"));
         Property propChestAnalyzerShowCommandUsage = subCat.addConfigEntry(cfg.get(configCat.getConfigName(),
@@ -762,6 +769,7 @@ public class MooConfig {
             chestAnalyzerShowBazaarItems = propChestAnalyzerShowBazaarItems.getBoolean();
             chestAnalyzerUseBazaarPrices = propChestAnalyzerUseBazaarPrices.getString();
             chestAnalyzerShowLowestBinItems = propChestAnalyzerShowLowestBinItems.getBoolean();
+            chestAnalyzerShowNpcItems = propChestAnalyzerShowNpcItems.getBoolean();
             chestAnalyzerShowNoPriceItems = propChestAnalyzerShowNoPriceItems.getBoolean();
             chestAnalyzerShowCommandUsage = propChestAnalyzerShowCommandUsage.getBoolean();
             tooltipToggleKeyBinding = propTooltipToggleKeyBinding.getInt();
@@ -854,6 +862,7 @@ public class MooConfig {
         propChestAnalyzerShowBazaarItems.set(chestAnalyzerShowBazaarItems);
         propChestAnalyzerUseBazaarPrices.set(chestAnalyzerUseBazaarPrices);
         propChestAnalyzerShowLowestBinItems.set(chestAnalyzerShowLowestBinItems);
+        propChestAnalyzerShowNpcItems.set(chestAnalyzerShowNpcItems);
         propChestAnalyzerShowNoPriceItems.set(chestAnalyzerShowNoPriceItems);
         propChestAnalyzerShowCommandUsage.set(chestAnalyzerShowCommandUsage);
         propTooltipToggleKeyBinding.set(tooltipToggleKeyBinding);
diff --git a/src/main/java/de/cowtipper/cowlection/config/gui/MooConfigCategoryScrolling.java b/src/main/java/de/cowtipper/cowlection/config/gui/MooConfigCategoryScrolling.java
index 3e72057..7c516c6 100644
--- a/src/main/java/de/cowtipper/cowlection/config/gui/MooConfigCategoryScrolling.java
+++ b/src/main/java/de/cowtipper/cowlection/config/gui/MooConfigCategoryScrolling.java
@@ -59,10 +59,7 @@ public class MooConfigCategoryScrolling extends GuiListExtended {
         this.mc = mc;
 
         listEntriesPreviews = new TreeMap<>();
-        newConfigOptions = Sets.newHashSet("enableCopyInventory", "copyOrSaveWailaAndInventoryData", "maxLogFileSize", "maxLatestLogFileSize",
-                "chestAnalyzerShowLowestBinItems", "chestAnalyzerShowNoPriceItems", "bazaarSellAllOrderAscDesc", "bazaarShowItemsLeft",
-                "dungItemQualityShortenNonRandomized", "dungSendPerformanceOnEndScreen", "dungMarkPartiesWithArcher", "dungMarkPartiesWithBerserk", "dungMarkPartiesWithHealer", "dungMarkPartiesWithMage", "dungMarkPartiesWithTank",
-                "dungPartyFinderRuleEditorSimplified", "dungPartyFinderRuleEditorShowOpenButton", "dungSendWrongFloorWarning", "gotoKeyBindings");
+        newConfigOptions = Sets.newHashSet("chestAnalyzerShowNpcItems");
         explanations = new HashMap<>();
         listEntries = new ArrayList<>();
     }
diff --git a/src/main/java/de/cowtipper/cowlection/util/ApiUtils.java b/src/main/java/de/cowtipper/cowlection/util/ApiUtils.java
index 4e81004..663936f 100644
--- a/src/main/java/de/cowtipper/cowlection/util/ApiUtils.java
+++ b/src/main/java/de/cowtipper/cowlection/util/ApiUtils.java
@@ -5,8 +5,9 @@ import com.google.gson.JsonParser;
 import com.google.gson.JsonSyntaxException;
 import com.mojang.util.UUIDTypeAdapter;
 import de.cowtipper.cowlection.Cowlection;
-import de.cowtipper.cowlection.chesttracker.HyBazaarData;
-import de.cowtipper.cowlection.chesttracker.LowestBinsCache;
+import de.cowtipper.cowlection.chesttracker.data.HyBazaarData;
+import de.cowtipper.cowlection.chesttracker.data.HyItemsData;
+import de.cowtipper.cowlection.chesttracker.data.LowestBinsCache;
 import de.cowtipper.cowlection.command.exception.ThrowingConsumer;
 import de.cowtipper.cowlection.config.CredentialStorage;
 import de.cowtipper.cowlection.data.*;
@@ -33,6 +34,7 @@ public class ApiUtils {
     private static final String SKYBLOCK_STATS_URL = "https://api.hypixel.net/skyblock/profiles?key=%s&uuid=%s";
     private static final String BAZAAR_URL = "https://api.hypixel.net/skyblock/bazaar";
     public static final String LOWEST_BINS = "https://moulberry.codes/lowestbin.json";
+    private static final String ITEMS_URL = "https://api.hypixel.net/resources/skyblock/items";
     private static final String PLAYER_URL = "https://api.hypixel.net/player?key=%s&uuid=%s";
     private static final String API_KEY_URL = "https://api.hypixel.net/key?key=%s";
     private static final ExecutorService pool = Executors.newCachedThreadPool();
@@ -137,6 +139,21 @@ public class ApiUtils {
         return new LowestBinsCache();
     }
 
+    public static void fetchItemsData(ThrowingConsumer<HyItemsData> action) {
+        pool.execute(() -> action.accept(getItemsData()));
+    }
+
+    private static HyItemsData getItemsData() {
+        try (BufferedReader reader = makeApiCall(ITEMS_URL)) {
+            if (reader != null) {
+                return GsonUtils.fromJson(reader, HyItemsData.class);
+            }
+        } catch (IOException | JsonSyntaxException e) {
+            handleApiException(e);
+        }
+        return null;
+    }
+
     public static void fetchHyPlayerDetails(Friend stalkedPlayer, ThrowingConsumer<HyPlayerData> action) {
         pool.execute(() -> action.accept(stalkHyPlayer(stalkedPlayer)));
     }
diff --git a/src/main/java/de/cowtipper/cowlection/util/GsonUtils.java b/src/main/java/de/cowtipper/cowlection/util/GsonUtils.java
index d2d3e28..c21a1fd 100644
--- a/src/main/java/de/cowtipper/cowlection/util/GsonUtils.java
+++ b/src/main/java/de/cowtipper/cowlection/util/GsonUtils.java
@@ -2,7 +2,7 @@ package de.cowtipper.cowlection.util;
 
 import com.google.gson.*;
 import com.mojang.util.UUIDTypeAdapter;
-import de.cowtipper.cowlection.chesttracker.LowestBinsCache;
+import de.cowtipper.cowlection.chesttracker.data.LowestBinsCache;
 import de.cowtipper.cowlection.data.HyPlayerData;
 import net.minecraft.nbt.*;
 import net.minecraftforge.common.util.Constants;
diff --git a/src/main/resources/assets/cowlection/lang/en_US.lang b/src/main/resources/assets/cowlection/lang/en_US.lang
index bf38336..2691fe9 100644
--- a/src/main/resources/assets/cowlection/lang/en_US.lang
+++ b/src/main/resources/assets/cowlection/lang/en_US.lang
@@ -52,8 +52,10 @@ cowlection.config.chestAnalyzerUseBazaarPrices=Use Bazaar prices
 cowlection.config.chestAnalyzerUseBazaarPrices.tooltip=Should §eInstant-Sell §ror §eSell Offer §rprices be used by default?
 cowlection.config.chestAnalyzerShowLowestBinItems=Show lowest BIN items?
 cowlection.config.chestAnalyzerShowLowestBinItems.tooltip=Should items with a §elowest BIN §rprice be displayed by default?
+cowlection.config.chestAnalyzerShowNpcItems=Show NPC sell price items?
+cowlection.config.chestAnalyzerShowNpcItems.tooltip=Should items with an §eNPC sell §rprice be displayed by default?\n§c(NPC sell price is only used if an item has neither a Bazaar nor lowest BIN price, or if one of them is hidden)
 cowlection.config.chestAnalyzerShowNoPriceItems=Show items without price?
-cowlection.config.chestAnalyzerShowNoPriceItems.tooltip=Should items §ewithout §ra Bazaar or BIN price be displayed by default?
+cowlection.config.chestAnalyzerShowNoPriceItems.tooltip=Should items §ewithout §ra Bazaar, BIN, or NPC price be displayed by default?
 cowlection.config.chestAnalyzerShowCommandUsage=Show command usage?
 cowlection.config.chestAnalyzerShowCommandUsage.tooltip=Should the command usage of §e/moo analyzeChests §rbe displayed again each time?
 cowlection.config.tooltipToggleKeyBinding=Key binding: toggle tooltip