/*
 * Dungeons Guide - The most intelligent Hypixel Skyblock Dungeons Mod
 * Copyright (C) 2021  cyoung06
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published
 * by the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */

package kr.syeyoung.dungeonsguide.gamesdk;

import com.sun.jna.Library;
import com.sun.jna.Native;
import com.sun.jna.Platform;
import com.sun.jna.Pointer;
import com.sun.jna.ptr.PointerByReference;
import kr.syeyoung.dungeonsguide.gamesdk.jna.GameSDKTypeMapper;
import kr.syeyoung.dungeonsguide.gamesdk.jna.NativeGameSDK;
import kr.syeyoung.dungeonsguide.gamesdk.jna.datastruct.*;
import kr.syeyoung.dungeonsguide.gamesdk.jna.enumuration.*;
import kr.syeyoung.dungeonsguide.gamesdk.jna.interfacestruct.IDiscordActivityEvents;
import kr.syeyoung.dungeonsguide.gamesdk.jna.interfacestruct.IDiscordActivityManager;
import kr.syeyoung.dungeonsguide.gamesdk.jna.interfacestruct.IDiscordCore;
import kr.syeyoung.dungeonsguide.gamesdk.jna.typedef.*;
import lombok.Getter;

import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.nio.file.Files;
import java.nio.file.StandardCopyOption;
import java.util.Collections;

public class GameSDK {
    @Getter
    private static NativeGameSDK nativeGameSDK;

    static {
        try {
            if (System.getProperty("dg.safe") == null) extractLibrary();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
    public static void extractLibrary() throws IOException {
        String libName = System.mapLibraryName("discord_game_sdk");
        String dir = "";
        switch(Platform.getOSType()) {
            case Platform.MAC:
                dir = "darwin";
                break;
            case Platform.LINUX:
                dir = "linux";
                break;
            case Platform.WINDOWS:
                if (Platform.is64Bit()) dir = "win-x64";
                else dir = "win-x86";
                break;
            default:
                throw new IllegalStateException("Unsupported OS Type");
        }

        String resourceLoc = "/gamesdk/"+dir+"/"+libName;
        File targetExtractionPath = new File("native/"+libName);
        targetExtractionPath.getParentFile().mkdirs();
        try (InputStream is = GameSDK.class.getResourceAsStream(resourceLoc)) {
            Files.copy(is, targetExtractionPath.toPath(), StandardCopyOption.REPLACE_EXISTING);
            targetExtractionPath.deleteOnExit();
        }

        nativeGameSDK = (NativeGameSDK) Native.loadLibrary(targetExtractionPath.getAbsolutePath(), NativeGameSDK.class,
                Collections.singletonMap(Library.OPTION_TYPE_MAPPER, GameSDKTypeMapper.INSTANCE));
    }

    public static void writeString(byte[] bts, String str) {
        System.arraycopy(str.getBytes(), 0, bts, 0, str.getBytes().length);
        bts[str.getBytes().length] = 0;
    }
    public static String readString(byte[] bts) {
        int i;
        for (i = 0; i < bts.length && bts[i] != 0; i++);
        byte[] asdasd = new byte[i];
        System.arraycopy(bts, 0, asdasd, 0, i);
        return new String(asdasd);
    }
}