JEI transfer picks the most common ingredient

src/main/java/com/refinedmods/refinedstorage/apiimpl/network/grid/CraftingGridBehavior.java

@@ -22,6 +22,8 @@ import net.minecraftforge.items.ItemHandlerHelper;
 
 import javax.annotation.Nullable;
 import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Comparator;
 import java.util.List;
 
 public class CraftingGridBehavior implements ICraftingGridBehavior {
@@ -193,6 +195,11 @@ public class CraftingGridBehavior implements ICraftingGridBehavior {
             if (recipe[i] != null) {
                 ItemStack[] possibilities = recipe[i];
 
+                if (network != null && grid.isGridActive()) {
+                    // sort by the number of items in storage
+                    Arrays.sort(possibilities, Comparator.comparingInt((ItemStack a) -> network.extractItem(a, Integer.MAX_VALUE, IComparer.COMPARE_NBT, Action.SIMULATE).getCount()).reversed());
+                }
+
                 // If we are a crafting grid
                 if (grid.getGridType() == GridType.CRAFTING) {
                     boolean found = false;

src/main/java/com/refinedmods/refinedstorage/integration/jei/GridRecipeTransferHandler.java

@@ -72,7 +72,7 @@ public class GridRecipeTransferHandler implements IRecipeTransferHandler<GridCon
                     )
                 ));
             } else {
-                moveItems(container, recipeLayout);
+                moveItems(container, recipeLayout, tracker);
             }
         } else {
             if (tracker.hasMissing()) {
@@ -87,7 +87,7 @@ public class GridRecipeTransferHandler implements IRecipeTransferHandler<GridCon
         IngredientTracker tracker = createTracker(container, recipeLayout, player);
 
         if (doTransfer) {
-            moveItems(container, recipeLayout);
+            moveItems(container, recipeLayout, tracker);
         } else {
             if (tracker.isAutocraftingAvailable()) {
                 return new RecipeTransferPatternGridError(tracker);
@@ -140,11 +140,11 @@ public class GridRecipeTransferHandler implements IRecipeTransferHandler<GridCon
         return System.currentTimeMillis() - lastTransferTimeMs <= TRANSFER_SCROLLBAR_DELAY_MS;
     }
 
-    private void moveItems(GridContainer gridContainer, IRecipeLayout recipeLayout) {
+    private void moveItems(GridContainer gridContainer, IRecipeLayout recipeLayout, IngredientTracker tracker) {
         this.lastTransferTimeMs = System.currentTimeMillis();
 
         if (gridContainer.getGrid().getGridType() == GridType.PATTERN && !recipeLayout.getRecipeCategory().getUid().equals(VanillaRecipeCategoryUid.CRAFTING)) {
-            moveForProcessing(recipeLayout);
+            moveForProcessing(recipeLayout, tracker);
         } else {
             move(gridContainer, recipeLayout);
         }
@@ -157,7 +157,7 @@ public class GridRecipeTransferHandler implements IRecipeTransferHandler<GridCon
         ));
     }
 
-    private void moveForProcessing(IRecipeLayout recipeLayout) {
+    private void moveForProcessing(IRecipeLayout recipeLayout, IngredientTracker tracker) {
         List<ItemStack> inputs = new LinkedList<>();
         List<ItemStack> outputs = new LinkedList<>();
 
@@ -165,7 +165,7 @@ public class GridRecipeTransferHandler implements IRecipeTransferHandler<GridCon
         List<FluidStack> fluidOutputs = new LinkedList<>();
 
         for (IGuiIngredient<ItemStack> guiIngredient : recipeLayout.getItemStacks().getGuiIngredients().values()) {
-            handleItemIngredient(inputs, outputs, guiIngredient);
+            handleItemIngredient(inputs, outputs, guiIngredient, tracker);
         }
 
         for (IGuiIngredient<FluidStack> guiIngredient : recipeLayout.getFluidStacks().getGuiIngredients().values()) {
@@ -187,9 +187,13 @@ public class GridRecipeTransferHandler implements IRecipeTransferHandler<GridCon
         }
     }
 
-    private void handleItemIngredient(List<ItemStack> inputs, List<ItemStack> outputs, IGuiIngredient<ItemStack> guiIngredient) {
+    private void handleItemIngredient(List<ItemStack> inputs, List<ItemStack> outputs, IGuiIngredient<ItemStack> guiIngredient, IngredientTracker tracker) {
         if (guiIngredient != null && guiIngredient.getDisplayedIngredient() != null) {
-            ItemStack ingredient = guiIngredient.getDisplayedIngredient().copy();
+            ItemStack ingredient = tracker.findBestMatch(guiIngredient.getAllIngredients()).copy();
+
+            if (ingredient == ItemStack.EMPTY) {
+                ingredient = guiIngredient.getDisplayedIngredient().copy();
+            }
 
             if (guiIngredient.isInput()) {
                 inputs.add(ingredient);

src/main/java/com/refinedmods/refinedstorage/integration/jei/IngredientTracker.java

@@ -6,12 +6,14 @@ import com.refinedmods.refinedstorage.screen.grid.stack.IGridStack;
 import mezz.jei.api.gui.IRecipeLayout;
 import mezz.jei.api.gui.ingredient.IGuiIngredient;
 import net.minecraft.item.ItemStack;
+import net.minecraft.util.ResourceLocation;
 
 import javax.annotation.Nullable;
 import java.util.*;
 
 public class IngredientTracker {
     private final List<Ingredient> ingredients = new ArrayList<>();
+    private final Map<ResourceLocation, Integer> storedItems = new HashMap<>();
 
     public IngredientTracker(IRecipeLayout recipeLayout) {
         for (IGuiIngredient<ItemStack> guiIngredient : recipeLayout.getItemStacks().getGuiIngredients().values()) {
@@ -27,6 +29,7 @@ public class IngredientTracker {
 
     public void addAvailableStack(ItemStack stack, @Nullable IGridStack gridStack) {
         int available = stack.getCount();
+        storedItems.merge(stack.getItem().getRegistryName(), available, Integer::sum);
 
         for (Ingredient ingredient : ingredients) {
             if (available == 0) {
@@ -78,4 +81,19 @@ public class IngredientTracker {
 
         return toRequest;
     }
+
+    public ItemStack findBestMatch(List<ItemStack> list) {
+        ItemStack stack = ItemStack.EMPTY;
+        int count = 0;
+
+        for (ItemStack itemStack : list) {
+            Integer stored = storedItems.get(itemStack.getItem().getRegistryName());
+            if (stored != null && stored > count) {
+                stack = itemStack;
+                count = stored;
+            }
+        }
+
+        return stack;
+    }
 }