Decoding block pallete

Hello, I'm working on better world generator for PocketMine. For better generator I need structures as village, igloos, etc. I've used NBT files from BDS to use default textures. NBT has 2 main list tags, palette and blocks. Pallete has format

Code:

[$index => (CompoundTag) [Name => "minecraft:blockname"], $index => ...]

. I've tried to use ids from vanilla resources (block_id_map.json). However they were incomplete. How can I build same map with all the blocknames? Missing for example minecraft:dark_oak_log, minecraft:birch_planks or minecraft:dark_oak_planks

Spoiler: Code

PHP:

   private function load() {
        $data = (new BigEndianNBTStream())->readCompressed(file_get_contents($this->path));
        /** @var array $compound */
        $compounds = $data->getValue();

        /**
         * @var int[] $palette
         *
         * stateId => pmmpId
         */
        $palette = [];

        /** @var CompoundTag $state */
        foreach ($compounds["palette"] as $state) {
            // $this->getBlockMap() returns pocketmine/resources/vanilla/block_id_map.json as array
            $palette[] = $this->getBlockMap()[$state->getString("Name")] ?? 0;
        }

        /** @var CompoundTag $blockData */
        foreach ($compounds["blocks"] as $blockData) {
            $pos = $blockData->getListTag("pos");
            $state = $blockData->getInt("state");
            $this->data[] = [$pos->offsetGet(0), $pos->offsetGet(1), $pos->offsetGet(2), $palette[$state]];
        }

        if(isset($compounds["size"])) {
            /** @var ListTag $list */
            $list = $compounds["size"];
            $this->axisVector = new Vector3($list->offsetGet(0), $list->offsetGet(1), $list->offsetGet(2));
        }
    }

Spoiler: NBT Structure

After first test I've got this result.

 

Any ideas?