<?php

namespace FaigerSYS\MapImageDemo;

use pocketmine\event\Listener;
use pocketmine\event\player\PlayerInteractEvent;
use pocketmine\event\server\DataPacketReceiveEvent;
use pocketmine\event\server\DataPacketSendEvent;
use pocketmine\nbt\NBT;
use pocketmine\nbt\tag\ByteTag;
use pocketmine\nbt\tag\CompoundTag;
use pocketmine\nbt\tag\ShortTag;
use pocketmine\nbt\tag\StringTag;
use pocketmine\network\mcpe\protocol\BlockEntityDataPacket;
use pocketmine\network\mcpe\protocol\MapInfoRequestPacket;
use pocketmine\network\mcpe\protocol\PacketPool;
use pocketmine\Player;
use pocketmine\plugin\PluginBase;


class MapImageDemo extends PluginBase implements Listener{
    /** @var  int */
    public $mapId;

    public function onEnable(){
        PacketPool::registerPacket(new ClientboundMapItemDataPacket);
        $this->getServer()->getPluginManager()->registerEvents($this, $this);
    }

    public function onTap(PlayerInteractEvent $e){
        $p = $e->getPlayer();

        if($e->getAction() == $e::RIGHT_CLICK_BLOCK && $e->getItem()->getId() == 280){
            $nbtPk = new BlockEntityDataPacket;
            $nbtPk->x = (int) 1;
            $nbtPk->y = (int) 1;
            $nbtPk->z = (int) 1;
            $nbt = new NBT(NBT::LITTLE_ENDIAN);
            $nbt->setData(new CompoundTag("", [
                new CompoundTag("Item", [
                    new ShortTag("id", 358),
                    //new ShortTag("id", 280),
                    new ShortTag("Damage", 0),
                    new ByteTag("Count", 1),
                    new CompoundTag("", [
                        new StringTag('map_uuid', $this->mapId = rand())
                    ])
                ])
            ]));
            $nbtPk->namedtag = $nbt->write(true);
            $p->dataPacket($nbtPk);

            $this->sendMap($e->getPlayer(), $this->mapId);
        }
    }

    public function onReceivePacket(DataPacketReceiveEvent $e){
        $pk = $e->getPacket();
        if($pk instanceof MapInfoRequestPacket){
            $this->sendMap($e->getPlayer(), $pk->mapId);
        }
    }

    public function sendPacket(DataPacketSendEvent $e){
        $pk = $e->getPacket();
        if($pk instanceof ClientboundMapItemDataPacket){
            var_dump(true);
        }
    }

    public function sendMap(Player $player, int $mapId){
        if(!$player->isOnline()){
            return;
        }
        $packet = new ClientboundMapItemDataPacket;
        $packet->mapId = $mapId;
        $packet->scale = 0;
        $packet->width = 128;
        $packet->height = 128;
        $packet->colors = $this->getTextureFromFile('C:\Users\alex\Desktop\t.png');
        $player->dataPacket($packet);
    }

    public function getTextureFromFile(string $filename) : array{
        $im = imagecreatefrompng($filename);
        $data = getimagesize($filename);
        $width = $data[0];
        $height = $data[1];
        $colors = [];
        for($y = 0; $y < $height; $y++){
            for($x = 0; $x < $width; $x++){
                $raw_color = imagecolorsforindex($im, imagecolorat($im, $x, $y));
                $r = $raw_color['red'];
                $g = $raw_color['green'];
                $b = $raw_color['blue'];
                $a = $raw_color['alpha'] === 0 ? 255 : ~$raw_color['alpha'] << 1 & 0xFF;
                $colors[$y][$x] = ($a << 24) | ($b << 16) | ($g << 8) | $r;
            }
        }
        imagedestroy($im);
        return $colors;
    }
}