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package me.xmrvizzy.skyblocker.skyblock;
import com.mojang.blaze3d.systems.RenderSystem;
import me.xmrvizzy.skyblocker.SkyblockerMod;
import me.xmrvizzy.skyblocker.utils.Utils;
import net.fabricmc.loader.api.FabricLoader;
import net.minecraft.client.MinecraftClient;
import net.minecraft.client.font.TextRenderer;
import net.minecraft.client.gui.DrawableHelper;
import net.minecraft.client.gui.screen.Screen;
import net.minecraft.client.gui.screen.ingame.HandledScreen;
import net.minecraft.client.network.PlayerListEntry;
import net.minecraft.client.render.item.ItemRenderer;
import net.minecraft.client.util.math.MatrixStack;
import net.minecraft.entity.player.PlayerEntity;
import net.minecraft.inventory.Inventory;
import net.minecraft.item.ItemStack;
import net.minecraft.nbt.*;
import net.minecraft.util.Identifier;
import java.io.File;
import java.nio.file.Path;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class BackpackPreview extends DrawableHelper {
private static final Identifier TEXTURE = new Identifier(SkyblockerMod.NAMESPACE, "textures/gui/inventory_background.png");
private static final BackpackPreview instance = new BackpackPreview();
private static final Pattern PROFILE_PATTERN = Pattern.compile("Profile: ([a-zA-Z]+)");
private static final Pattern ECHEST_PATTERN = Pattern.compile("Ender Chest.*\\((\\d+)/\\d+\\)");
private static final Pattern BACKPACK_PATTERN = Pattern.compile("Backpack.*\\((\\d+)/\\d+\\)");
private static final int STORAGE_SIZE = 27;
private static final Inventory[] storage = new Inventory[STORAGE_SIZE];
private static final boolean[] dirty = new boolean[STORAGE_SIZE];
private static String loaded = ""; // uuid + sb profile currently loaded
private static Path save_dir = null;
public static void tick() {
Utils.sbChecker(); // force update isOnSkyblock to prevent crash on disconnect
if (Utils.isOnSkyblock) {
// save all dirty storages
saveStorage();
// update save dir based on uuid and sb profile
String uuid = MinecraftClient.getInstance().getSession().getUuid().replaceAll("-", "");
String profile = getSkyblockProfile();
if (uuid != null && profile != null) {
save_dir = FabricLoader.getInstance().getConfigDir().resolve("skyblocker/backpack-preview/" + uuid + "/" + profile);
save_dir.toFile().mkdirs();
if (loaded.equals(uuid + "/" + profile)) {
// mark currently opened storage as dirty
if (MinecraftClient.getInstance().currentScreen != null) {
String title = MinecraftClient.getInstance().currentScreen.getTitle().getString();
int index = getStorageIndexFromTitle(title);
if (index != -1) dirty[index] = true;
}
} else {
// load storage again because uuid/profile changed
loaded = uuid + "/" + profile;
loadStorage();
}
}
}
}
public static void loadStorage() {
assert(save_dir != null);
for (int index = 0; index < STORAGE_SIZE; ++index) {
storage[index] = null;
dirty[index] = false;
File file = save_dir.resolve(index + ".nbt").toFile();
if (file.isFile()) {
try {
NbtCompound root = NbtIo.read(file);
storage[index] = new DummyInventory(root);
} catch (Exception e) {
e.printStackTrace();
}
}
}
}
private static void saveStorage() {
assert(save_dir != null);
for (int index = 0; index < STORAGE_SIZE; ++index) {
if (dirty[index]) {
if (storage[index] != null) {
try {
NbtCompound root = new NbtCompound();
NbtList list = new NbtList();
for (int i = 9; i < storage[index].size(); ++i) {
ItemStack stack = storage[index].getStack(i);
NbtCompound item = new NbtCompound();
if (stack.isEmpty()) {
item.put("id", NbtString.of("minecraft:air"));
item.put("Count", NbtInt.of(1));
} else {
item.put("id", NbtString.of(stack.getItem().toString()));
item.put("Count", NbtInt.of(stack.getCount()));
item.put("tag", stack.getNbt());
}
list.add(item);
}
root.put("list", list);
root.put("size", NbtInt.of(storage[index].size() - 9));
NbtIo.write(root, save_dir.resolve(index + ".nbt").toFile());
dirty[index] = false;
} catch (Exception e) {
e.printStackTrace();
}
}
}
}
}
public static void updateStorage(HandledScreen<?> screen) {
String title = screen.getTitle().getString();
int index = getStorageIndexFromTitle(title);
if (index != -1) {
storage[index] = ((HandledScreen<?>)screen).getScreenHandler().slots.get(0).inventory;
dirty[index] = true;
}
}
public static boolean renderPreview(MatrixStack matrices, int index, int mouseX, int mouseY) {
if (index >= 9 && index < 18) index -= 9;
else if (index >= 27 && index < 45) index -= 18;
else return false;
if (storage[index] == null) return false;
int rows = (storage[index].size() - 9) / 9;
Screen screen = MinecraftClient.getInstance().currentScreen;
int x = mouseX + 184 >= screen.width ? mouseX - 188 : mouseX + 8;
int y = Math.max(0, mouseY - 16);
RenderSystem.disableDepthTest();
RenderSystem.setShaderTexture(0, TEXTURE);
instance.drawTexture(matrices, x, y, 0, 0, 176, 7);
for (int i = 0; i < rows; ++i)
instance.drawTexture(matrices, x, y + i * 18 + 7, 0, 7, 176, 18);
instance.drawTexture(matrices, x, y + rows * 18 + 7, 0, 25, 176, 7);
RenderSystem.enableDepthTest();
ItemRenderer itemRenderer = MinecraftClient.getInstance().getItemRenderer();
TextRenderer textRenderer = MinecraftClient.getInstance().textRenderer;
for (int i = 9; i < storage[index].size(); ++i) {
int itemX = x + (i - 9) % 9 * 18 + 8;
int itemY = y + (i - 9) / 9 * 18 + 8;
itemRenderer.zOffset = 200.0F;
itemRenderer.renderInGui(storage[index].getStack(i), itemX, itemY);
itemRenderer.renderGuiItemOverlay(textRenderer, storage[index].getStack(i), itemX, itemY);
itemRenderer.zOffset = 0.0F;
}
return true;
}
private static int getStorageIndexFromTitle(String title) {
Matcher echest = ECHEST_PATTERN.matcher(title);
if (echest.find()) return Integer.parseInt(echest.group(1)) - 1;
Matcher backpack = BACKPACK_PATTERN.matcher(title);
if (backpack.find()) return Integer.parseInt(backpack.group(1)) + 8;
return -1;
}
private static String getSkyblockProfile() {
Collection<PlayerListEntry> list = MinecraftClient.getInstance().getNetworkHandler().getPlayerList();
for (PlayerListEntry entry : list) {
if (entry.getDisplayName() != null) {
Matcher matcher = PROFILE_PATTERN.matcher(entry.getDisplayName().getString());
if (matcher.find()) {
return matcher.group(1);
}
}
}
return null;
}
}
class DummyInventory implements Inventory {
private List<ItemStack> stacks;
public DummyInventory(NbtCompound root) {
stacks = new ArrayList<>(root.getInt("size") + 9);
for (int i = 0; i < 9; ++i) stacks.add(ItemStack.EMPTY);
root.getList("list", NbtCompound.COMPOUND_TYPE).forEach(item ->
stacks.add(ItemStack.fromNbt((NbtCompound)item))
);
}
@Override
public int size() { return stacks.size(); }
@Override
public boolean isEmpty() { return false; }
@Override
public ItemStack getStack(int slot) { return stacks.get(slot); }
@Override
public ItemStack removeStack(int slot, int amount) { return null; }
@Override
public ItemStack removeStack(int slot) { return null; }
@Override
public void setStack(int slot, ItemStack stack) { stacks.set(slot, stack); }
@Override
public void markDirty() {}
@Override
public boolean canPlayerUse(PlayerEntity player) { return false; }
@Override
public void clear() {}
}
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