package net.knarcraft.dynmapcitizens.handler.trait;

import net.citizensnpcs.api.CitizensAPI;
import net.citizensnpcs.api.npc.NPC;
import net.citizensnpcs.api.trait.Trait;
import net.knarcraft.blacksmith.BlacksmithPlugin;
import net.knarcraft.blacksmith.config.NPCSettings;
import net.knarcraft.blacksmith.trait.BlacksmithTrait;
import net.knarcraft.dynmapcitizens.DynmapCitizens;
import net.knarcraft.dynmapcitizens.property.Icon;
import net.knarcraft.dynmapcitizens.property.UpdateRate;
import org.bukkit.Bukkit;
import org.bukkit.Material;
import org.dynmap.DynmapAPI;
import org.dynmap.markers.GenericMarker;
import org.dynmap.markers.MarkerSet;

import java.util.ArrayList;
import java.util.List;
import java.util.logging.Level;

/**
 * A handler class for the blacksmith trait
 */
public class BlacksmithHandler extends AbstractTraitHandler {

    private MarkerSet blacksmithSet;

    @Override
    public void initialize() {
        BlacksmithPlugin blacksmithPlugin = (BlacksmithPlugin) Bukkit.getServer().getPluginManager().getPlugin("Blacksmith");
        DynmapAPI dynmapAPI = DynmapCitizens.getInstance().getDynmapAPI();
        if (blacksmithPlugin != null) {
            blacksmithSet = getMarkerSet(dynmapAPI, "blacksmiths", "Blacksmiths");
            if (blacksmithSet != null) {
                blacksmithSet.setHideByDefault(false);
                blacksmithSet.setLayerPriority(3);
                isEnabled = true;
                return;
            }
        }
        isEnabled = false;
    }

    @Override
    public UpdateRate getUpdateRate() {
        return UpdateRate.VERY_SLOW;
    }

    @Override
    public void updateMarkers() {
        //Remove existing markers
        blacksmithSet.getMarkers().forEach(GenericMarker::deleteMarker);

        Class<? extends Trait> blacksmithTrait = CitizensAPI.getTraitFactory().getTraitClass("blacksmith");
        for (NPC npc : CitizensAPI.getNPCRegistry()) {
            if (npc.hasTrait(blacksmithTrait)) {
                BlacksmithTrait trait = npc.getTraitNullable(BlacksmithTrait.class);
                String description = null;
                if (trait == null) {
                    DynmapCitizens.getInstance().getLogger().log(Level.WARNING, "Unable to get blacksmith trait");
                } else {
                    //TODO: Make a setting which allows disabling extra information (except title and reforge-able items?)
                    description = getDetailedBlacksmithInfo(npc, trait.getSettings());
                }
                addNPCMarker(npc.getUniqueId(), "Blacksmith NPC: ", description,
                        DynmapCitizens.getInstance().getMarkerIcons().get(Icon.BLACKSMITH), blacksmithSet);
            }
        }
    }

    /**
     * Gets detailed information about a blacksmith NPC
     *
     * @param npc         <p>The NPC the settings belong to</p>
     * @param npcSettings <p>The settings to search for information</p>
     * @return <p>A string describing the blacksmith</p>
     */
    private String getDetailedBlacksmithInfo(NPC npc, NPCSettings npcSettings) {
        String info = "<h2>" + npc.getName() + " the " +
                npcSettings.getBlacksmithTitle() + "</h2><b>Fail chance:</b> " + npcSettings.getFailChance() +
                "<br><b>Enchantment chance:</b> " + npcSettings.getExtraEnchantmentChance() + "<br><b>Delay:</b> " +
                npcSettings.getMinReforgeDelay() + " to " + npcSettings.getMaxReforgeDelay() +
                " seconds<br><b>Cool-down:</b> " + npcSettings.getReforgeCoolDown() + " seconds<br><b>Drop item:</b> " +
                npcSettings.getDropItem() + "<br><b>Max enchantments:</b> " + npcSettings.getMaxEnchantments();
        if (!npcSettings.getReforgeAbleItems().isEmpty()) {
            info += "<br><b>Reforge-able items:</b> " + getReforgeAbleItemsString(npcSettings.getReforgeAbleItems());
        }
        return info;
    }

    /**
     * Gets reforge-able items as a string
     *
     * @param materials <p>The materials specified as reforge-able items</p>
     * @return <p>The reforge-able items</p>
     */
    private static String getReforgeAbleItemsString(List<Material> materials) {
        List<String> materialNames = new ArrayList<>();
        for (Material material : materials) {
            materialNames.add(material.name());
        }
        return String.join(", ", materialNames);
    }

}