package com.rsscripting.serveradmin.gui;

import com.rsscripting.serveradmin.RSServerAdmin;
import com.rsscripting.serveradmin.dao.CreeperSettingsDAO;
import com.rsscripting.serveradmin.menuholder.RSMenuHolder;
import com.rsscripting.serveradmin.settings.SettingKey;
import com.rsscripting.serveradmin.utils.GUIUtils;
import com.rsscripting.serveradmin.utils.MenuLayoutUtils;
import org.bukkit.Bukkit;
import org.bukkit.Material;
import org.bukkit.NamespacedKey;
import org.bukkit.inventory.Inventory;
import org.bukkit.inventory.ItemStack;
import org.bukkit.inventory.meta.ItemMeta;
import org.bukkit.persistence.PersistentDataType;

import java.sql.SQLException;
import java.util.List;

public class CreeperBlockDamageMenu {

    private static final int WORLDS_PER_PAGE = 45;

    public static Inventory create(
            int page
    ) throws SQLException {

        RSMenuHolder holder =
                new RSMenuHolder(
                        "CREEPER_BLOCK_DAMAGE"
                );

        holder.setPage(
                page
        );

        Inventory inventory =
                Bukkit.createInventory(
                        holder,
                        54,
                        "Block Damage"
                );

        GUIUtils.fillEmptySlots(
                inventory
        );

        createBackButton(
                inventory
        );

        createDefaultButton(
                inventory
        );

        populateWorlds(
                inventory,
                page
        );

        return inventory;

    }

    private static void createBackButton(
            Inventory inventory
    ) {

        ItemStack item =
                new ItemStack(
                        Material.ARROW
                );

        ItemMeta meta =
                item.getItemMeta();

        if (meta != null) {

            meta.setDisplayName(
                    "§cBack"
            );

            item.setItemMeta(
                    meta
            );

        }

        inventory.setItem(
                3,
                item
        );

    }

    private static void createDefaultButton(
            Inventory inventory
    ) throws SQLException {

        boolean enabled =
                RSServerAdmin.getInstance()
                        .getSettingsDAO()
                        .getDefault(
                                SettingKey.CREEPER_BLOCK_DAMAGE
                        );

        ItemStack item =
                new ItemStack(
                        enabled
                                ? Material.ENDER_CHEST
                                : Material.CHEST
                );

        ItemMeta meta =
                item.getItemMeta();

        if (meta != null) {

            meta.setDisplayName(
                    "§eDefault For New Worlds"
            );

            meta.setLore(
                    List.of(
                            "§7Controls newly detected worlds",
                            "",
                            enabled
                                    ? "§aCurrent: New worlds allow creeper block damage"
                                    : "§cCurrent: New worlds block creeper block damage"
                    )
            );

            item.setItemMeta(
                    meta
            );

        }

        inventory.setItem(
                5,
                item
        );

    }

    private static void populateWorlds(
            Inventory inventory,
            int page
    ) throws SQLException {

        CreeperSettingsDAO dao =
                RSServerAdmin.getInstance()
                        .getCreeperSettingsDAO();

        List<String> worlds =
                RSServerAdmin.getInstance()
                        .getWorldsDAO()
                        .getAllWorlds();

        int start =
                (page - 1) * WORLDS_PER_PAGE;

        int end =
                Math.min(
                        start + WORLDS_PER_PAGE,
                        worlds.size()
                );

        int worldCount =
                end - start;

        for (int i = start;
             i < end;
             i++) {

            String worldName =
                    worlds.get(i);

            boolean enabled =
                    dao.getBlockDamage(
                            worldName
                    );

            ItemStack item =
                    new ItemStack(
                            enabled
                                    ? Material.LIME_SHULKER_BOX
                                    : Material.RED_SHULKER_BOX
                    );

            ItemMeta meta =
                    item.getItemMeta();

            if (meta != null) {

                meta.setDisplayName(
                        "§e" + worldName
                );

                meta.getPersistentDataContainer()
                        .set(
                                new NamespacedKey(
                                        RSServerAdmin.getInstance(),
                                        "world_name"
                                ),
                                PersistentDataType.STRING,
                                worldName
                        );

                meta.setLore(
                        List.of(
                                "§7Creeper Block Damage",
                                "",
                                enabled
                                        ? "§aCurrent: Creepers damage blocks"
                                        : "§cCurrent: Creepers do not damage blocks"
                        )
                );

                item.setItemMeta(
                        meta
                );

            }

            int relativeIndex =
                    i - start;

            int row =
                    relativeIndex / 9;

            int indexInRow =
                    relativeIndex % 9;

            int itemsRemaining =
                    worldCount - (row * 9);

            boolean lastPartialRow =
                    itemsRemaining < 9;

            int slot;

            if (lastPartialRow) {

                List<Integer> rowSlots =
                        MenuLayoutUtils.getCenteredSlots(
                                itemsRemaining
                        );

                slot =
                        9
                                + (row * 9)
                                + rowSlots.get(
                                indexInRow
                        );

            } else {

                slot =
                        9
                                + (row * 9)
                                + indexInRow;

            }

            inventory.setItem(
                    slot,
                    item
            );

        }
    }
}