VirtualItem.java

package gg.amy.clockwork.virtual;

import gg.amy.clockwork.Clockwork;
import gg.amy.clockwork.virtual.VirtualItems.VirtualTemplate;
import lombok.Getter;
import org.apache.commons.lang.WordUtils;
import org.bukkit.ChatColor;
import org.bukkit.inventory.ItemStack;
import org.bukkit.inventory.meta.ItemMeta;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;

/**
 * @author amy
 * @since 6/21/18.
 */
@Getter
@SuppressWarnings("unused")
public final class VirtualItem {
    private final VirtualTemplate template;
    private final Map<String, String> ctx;
    private final int amount;
    
    private VirtualItem(final VirtualTemplate template, final Map<String, String> ctx, final int amount) {
        this.template = template;
        this.ctx = ctx;
        this.amount = amount;
    }
    
    public static VirtualItem fromItemStack(final ItemStack stack, final Map<String, String> inCtx) {
        if(!stack.hasItemMeta()) {
            throw new IllegalArgumentException("Stack has no meta");
        }
        final ItemMeta meta = stack.getItemMeta();
        if(!meta.hasDisplayName()) {
            throw new IllegalArgumentException("Stack has no displayName");
        }
        final Clockwork plugin = Clockwork.getPlugin(Clockwork.class);
        final String displayName = ChatColor.stripColor(meta.getDisplayName());
        if(!plugin.getVirtualItems().isVirtual(stack)) {
            throw new IllegalArgumentException("Stack is not virtual");
        }
        final String itemId = displayName.replaceFirst("virtual:", "");
        List<String> lore = meta.getLore();
        if(lore == null) {
            lore = new ArrayList<>();
        }
        // Build the ctx
        final Map<String, String> ctx = new HashMap<>();
        lore.forEach(e -> {
            final String[] split = e.split(":", 2);
            if(split.length == 2) {
                ctx.put(split[0], split[1]);
            }
        });
        ctx.putAll(inCtx);
        final VirtualTemplate template = plugin.getVirtualItems().getVirtualTemplate(itemId);
        
        return new VirtualItem(template, ctx, stack.getAmount());
    }
    
    public ItemStack render() {
        final ItemStack stack = new ItemStack(template.getMaterial());
        final ItemMeta itemMeta = stack.getItemMeta();
        itemMeta.setDisplayName(ChatColor.translateAlternateColorCodes('&', template.getColor() + template.getName()));
        final List<String> lore = new ArrayList<>();
        template.getLore().forEach(e -> {
            String tmp = e;
            for(final Entry<String, String> stringStringEntry : ctx.entrySet()) {
                tmp = tmp.replace('%' + stringStringEntry.getKey() + '%', stringStringEntry.getValue());
            }
            lore.add(ChatColor.translateAlternateColorCodes('&', tmp));
        });
        lore.add(ChatColor.GRAY + "" + ChatColor.ITALIC + WordUtils.capitalizeFully(template.getRarity()));
        itemMeta.setLore(lore);
        stack.setItemMeta(itemMeta);
        stack.setAmount(amount);
        return stack;
    }
}