package eu.mikroskeem.utils.itemutils;

import org.apache.commons.lang.Validate;
import org.bukkit.Material;
import org.bukkit.block.Banner;
import org.bukkit.block.banner.Pattern;
import org.bukkit.inventory.ItemStack;
import org.bukkit.inventory.meta.BlockStateMeta;
import org.bukkit.inventory.meta.ItemMeta;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;

import java.util.ArrayList;

public class Shield {
    /**
     * Set Minecraft shield design
     *
     * @param shieldStack Shield itemstack to apply design on
     * @param patternList Banner design patterns
     */
    public static void setShieldDesign(@NotNull ItemStack shieldStack, @Nullable ArrayList<Pattern> patternList){
        Validate.isTrue(shieldStack.getType().equals(Material.SHIELD), "Item must be a shield");

        ItemMeta shieldMeta = shieldStack.getItemMeta();
        BlockStateMeta shieldbMeta = (BlockStateMeta)shieldMeta;

        Banner banner = (Banner)shieldbMeta.getBlockState();
        banner.setPatterns(patternList);
        banner.update(); // TODO: find out if it is needed

        shieldbMeta.setBlockState(banner);
        shieldStack.setItemMeta(shieldMeta);
    }
}