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package me.mason.chest.listeners;

import com.wasteofplastic.askyblock.ASkyBlockAPI;
import com.wasteofplastic.askyblock.Island;
import java.util.List;
import me.mason.chest.Core;
import me.mason.chest.utils.LM;
import me.mason.chest.utils.SignUtil;
import net.brcdev.shopgui.ShopGuiPlugin;
import net.brcdev.shopgui.config.Settings;
import net.brcdev.shopgui.player.PlayerData;
import net.brcdev.shopgui.shop.ShopManager;
import net.brcdev.shopgui.shop.WrappedShopItem;
import org.apache.commons.lang.Validate;
import org.bukkit.Material;
import org.bukkit.block.Block;
import org.bukkit.block.BlockState;
import org.bukkit.entity.Player;
import org.bukkit.event.EventHandler;
import org.bukkit.event.Listener;
import org.bukkit.event.block.Action;
import org.bukkit.event.block.SignChangeEvent;
import org.bukkit.event.player.PlayerInteractEvent;
import org.bukkit.inventory.Inventory;
import org.bukkit.inventory.InventoryHolder;
import org.bukkit.inventory.ItemStack;
import org.bukkit.material.Sign;

public class SignListener implements Listener {

    private final Core plugin;

    public SignListener(Core plugin) {
        this.plugin = plugin;
    }

	@EventHandler
    public void onSignPlace(SignChangeEvent event) {
        final Player player = event.getPlayer();
        final SignUtil signUtil = this.plugin.getSignUtil();

        if(!inValidWorld(player) || !signUtil.validSign(event.getLine(0))){
            return;
        }

        if (!ASkyBlockAPI.getInstance().playerIsOnIsland(player)) {
            return;
        }

        final Block block = event.getBlock();
        if (!block.getType().equals(Material.WALL_SIGN) ) {
            this.denySignChange(event, LM.NOT_AGAINST_CHEST.getValue());
            return;
        }

        if(!player.hasPermission(LM.PERMISSION.getValue())){
            this.denySignChange(event, LM.NO_PERMS_PLACE.getValue());
            return;
        }

        final Sign signData = (Sign) event.getBlock().getState().getData();
        final Block relative = block.getRelative(signData.getAttachedFace());
        if (!relative.equals(Material.CHEST) || !relative.equals(Material.TRAPPED_CHEST)) {
            this.denySignChange(event, LM.NOT_AGAINST_CHEST.getValue());
            return;
        }

        final String[] lines = signUtil.getLines();

        for (int i = 0; i < 4; i++) {
            event.setLine(i, lines[i]);
        }

        player.sendMessage(LM.PLACE.getValue());
    }

    private void denySignChange(SignChangeEvent event, String message) {
        event.getBlock().breakNaturally();
        event.getPlayer().sendMessage(message);
    }

    @EventHandler
    public void onSignInteract(PlayerInteractEvent event) {
        final Player player = event.getPlayer();
        final SignUtil signUtil = this.plugin.getSignUtil();

        if (!this.inValidWorld(player)) {
            return;
        }

        final Action action = event.getAction();
        if (action == Action.LEFT_CLICK_BLOCK || action == Action.RIGHT_CLICK_BLOCK) {
            return;
        }

        final Block block = event.getClickedBlock();
        if (block == null || block.getType() != Material.WALL_SIGN) {
            return;
        }

        final org.bukkit.block.Sign sign = (org.bukkit.block.Sign) block.getState();
        if (!signUtil.isSellChestSign(sign)) {
            return;
        }

        final ASkyBlockAPI askyblockAPI = ASkyBlockAPI.getInstance();
        if (!askyblockAPI.playerIsOnIsland(player)) {
            return;
        }

        final Island island = askyblockAPI.getIslandAt(player.getLocation());
        if (island == null) {
            return;
        }

        if (!island.getMembers().contains(player.getUniqueId())) {
            player.sendMessage(LM.NO_PERMS_USE.getValue());
            return;
        }

        final Sign signData = (Sign) sign.getData();

        final BlockState state = block.getRelative(signData.getAttachedFace()).getState();
        if (state instanceof InventoryHolder) {
            final Inventory inventory = ((InventoryHolder) state).getInventory();
            this.sellItems(inventory, player);
        }
    }

    public boolean inValidWorld(Player player) {
        List<String> validWorlds = plugin.getConfig().getStringList("valid-worlds");
        Validate.notEmpty(validWorlds,"[Haunted] Valid?");
        return validWorlds.contains(player.getWorld().getName());
    }

    public void sellItems(Inventory chest, Player seller) {
        ShopGuiPlugin sgp = ShopGuiPlugin.getInstance();

        int amount = 0;
        double value = 0.0;

        ShopManager shopManager = sgp.getShopManager();
        PlayerData playerData = sgp.getPlayerManager().getPlayerData(seller);

        for(int i = 0; i < chest.getContents().length; i++) {
            ItemStack stack = chest.getItem(i);

            if(stack == null || stack.getType().equals(Material.AIR)) {
            	continue;
            }

            WrappedShopItem shopItem = shopManager.findShopItemByItemStack(seller, playerData, stack, Settings.sellHandAllExcludeFreeItems);

            if(shopItem == null || shopItem.getShopItem() == null || shopItem.getShop() == null) {
            	continue;
            }

            double sellValue = shopItem.getShopItem().getSellPriceForAmount(shopItem.getShop(), seller, playerData, stack.getAmount());

            amount += stack.getAmount();
            value += sellValue;
            chest.setItem(i, new ItemStack(Material.AIR));
        }

        sgp.getEconomyProvider().deposit(seller, value);

        if (amount == 0) {
            seller.sendMessage(LM.EMPTY_CHEST.getValue());
        } else {
            seller.sendMessage(LM.SOLD.getValue().replace("%amount%", amount + "").replace("%value%", value + ""));
        }
    }
}