package org.telegram.messenger.voip;

/**
 * Created by grishka on 13.03.17.
 */

public class EncryptionKeyEmojifier{
	private static final String[] emojis={"\uD83D\uDE09","\uD83D\uDE0D","\uD83D\uDE1B","\uD83D\uDE2D","\uD83D\uDE31","\uD83D\uDE21","\uD83D\uDE0E","\uD83D\uDE34",
			"\uD83D\uDE35","\uD83D\uDE08","\uD83D\uDE2C","\uD83D\uDE07","\uD83D\uDE0F","\uD83D\uDC6E","\uD83D\uDC77","\uD83D\uDC82","\uD83D\uDC76","\uD83D\uDC68",
			"\uD83D\uDC69","\uD83D\uDC74","\uD83D\uDC75","\uD83D\uDE3B","\uD83D\uDE3D","\uD83D\uDE40","\uD83D\uDC7A","\uD83D\uDE48","\uD83D\uDE49","\uD83D\uDE4A",
			"\uD83D\uDC80","\uD83D\uDC7D","\uD83D\uDCA9","\uD83D\uDD25","\uD83D\uDCA5","\uD83D\uDCA4","\uD83D\uDC42","\uD83D\uDC40","\uD83D\uDC43","\uD83D\uDC45",
			"\uD83D\uDC44","\uD83D\uDC4D","\uD83D\uDC4E","\uD83D\uDC4C","\uD83D\uDC4A","✌","✋","\uD83D\uDC50","\uD83D\uDC46","\uD83D\uDC47","\uD83D\uDC49",
			"\uD83D\uDC48","\uD83D\uDE4F","\uD83D\uDC4F","\uD83D\uDCAA","\uD83D\uDEB6","\uD83C\uDFC3","\uD83D\uDC83","\uD83D\uDC6B","\uD83D\uDC6A","\uD83D\uDC6C",
			"\uD83D\uDC6D","\uD83D\uDC85","\uD83C\uDFA9","\uD83D\uDC51","\uD83D\uDC52","\uD83D\uDC5F","\uD83D\uDC5E","\uD83D\uDC60","\uD83D\uDC55","\uD83D\uDC57",
			"\uD83D\uDC56","\uD83D\uDC59","\uD83D\uDC5C","\uD83D\uDC53","\uD83C\uDF80","\uD83D\uDC84","\uD83D\uDC9B","\uD83D\uDC99","\uD83D\uDC9C","\uD83D\uDC9A",
			"\uD83D\uDC8D","\uD83D\uDC8E","\uD83D\uDC36","\uD83D\uDC3A","\uD83D\uDC31","\uD83D\uDC2D","\uD83D\uDC39","\uD83D\uDC30","\uD83D\uDC38","\uD83D\uDC2F",
			"\uD83D\uDC28","\uD83D\uDC3B","\uD83D\uDC37","\uD83D\uDC2E","\uD83D\uDC17","\uD83D\uDC34","\uD83D\uDC11","\uD83D\uDC18","\uD83D\uDC3C","\uD83D\uDC27",
			"\uD83D\uDC25","\uD83D\uDC14","\uD83D\uDC0D","\uD83D\uDC22","\uD83D\uDC1B","\uD83D\uDC1D","\uD83D\uDC1C","\uD83D\uDC1E","\uD83D\uDC0C","\uD83D\uDC19",
			"\uD83D\uDC1A","\uD83D\uDC1F","\uD83D\uDC2C","\uD83D\uDC0B","\uD83D\uDC10","\uD83D\uDC0A","\uD83D\uDC2B","\uD83C\uDF40","\uD83C\uDF39","\uD83C\uDF3B",
			"\uD83C\uDF41","\uD83C\uDF3E","\uD83C\uDF44","\uD83C\uDF35","\uD83C\uDF34","\uD83C\uDF33","\uD83C\uDF1E","\uD83C\uDF1A","\uD83C\uDF19","\uD83C\uDF0E",
			"\uD83C\uDF0B","⚡","☔","❄","⛄","\uD83C\uDF00","\uD83C\uDF08","\uD83C\uDF0A","\uD83C\uDF93","\uD83C\uDF86","\uD83C\uDF83","\uD83D\uDC7B","\uD83C\uDF85",
			"\uD83C\uDF84","\uD83C\uDF81","\uD83C\uDF88","\uD83D\uDD2E","\uD83C\uDFA5","\uD83D\uDCF7","\uD83D\uDCBF","\uD83D\uDCBB","☎","\uD83D\uDCE1","\uD83D\uDCFA",
			"\uD83D\uDCFB","\uD83D\uDD09","\uD83D\uDD14","⏳","⏰","⌚","\uD83D\uDD12","\uD83D\uDD11","\uD83D\uDD0E","\uD83D\uDCA1","\uD83D\uDD26","\uD83D\uDD0C",
			"\uD83D\uDD0B","\uD83D\uDEBF","\uD83D\uDEBD","\uD83D\uDD27","\uD83D\uDD28","\uD83D\uDEAA","\uD83D\uDEAC","\uD83D\uDCA3","\uD83D\uDD2B","\uD83D\uDD2A",
			"\uD83D\uDC8A","\uD83D\uDC89","\uD83D\uDCB0","\uD83D\uDCB5","\uD83D\uDCB3","✉","\uD83D\uDCEB","\uD83D\uDCE6","\uD83D\uDCC5","\uD83D\uDCC1","✂","\uD83D\uDCCC",
			"\uD83D\uDCCE","✒","✏","\uD83D\uDCD0","\uD83D\uDCDA","\uD83D\uDD2C","\uD83D\uDD2D","\uD83C\uDFA8","\uD83C\uDFAC","\uD83C\uDFA4","\uD83C\uDFA7","\uD83C\uDFB5",
			"\uD83C\uDFB9","\uD83C\uDFBB","\uD83C\uDFBA","\uD83C\uDFB8","\uD83D\uDC7E","\uD83C\uDFAE","\uD83C\uDCCF","\uD83C\uDFB2","\uD83C\uDFAF","\uD83C\uDFC8",
			"\uD83C\uDFC0","⚽","⚾","\uD83C\uDFBE","\uD83C\uDFB1","\uD83C\uDFC9","\uD83C\uDFB3","\uD83C\uDFC1","\uD83C\uDFC7","\uD83C\uDFC6","\uD83C\uDFCA","\uD83C\uDFC4",
			"☕","\uD83C\uDF7C","\uD83C\uDF7A","\uD83C\uDF77","\uD83C\uDF74","\uD83C\uDF55","\uD83C\uDF54","\uD83C\uDF5F","\uD83C\uDF57","\uD83C\uDF71","\uD83C\uDF5A",
			"\uD83C\uDF5C","\uD83C\uDF61","\uD83C\uDF73","\uD83C\uDF5E","\uD83C\uDF69","\uD83C\uDF66","\uD83C\uDF82","\uD83C\uDF70","\uD83C\uDF6A","\uD83C\uDF6B",
			"\uD83C\uDF6D","\uD83C\uDF6F","\uD83C\uDF4E","\uD83C\uDF4F","\uD83C\uDF4A","\uD83C\uDF4B","\uD83C\uDF52","\uD83C\uDF47","\uD83C\uDF49","\uD83C\uDF53",
			"\uD83C\uDF51","\uD83C\uDF4C","\uD83C\uDF50","\uD83C\uDF4D","\uD83C\uDF46","\uD83C\uDF45","\uD83C\uDF3D","\uD83C\uDFE1","\uD83C\uDFE5","\uD83C\uDFE6",
			"⛪","\uD83C\uDFF0","⛺","\uD83C\uDFED","\uD83D\uDDFB","\uD83D\uDDFD","\uD83C\uDFA0","\uD83C\uDFA1","⛲","\uD83C\uDFA2","\uD83D\uDEA2","\uD83D\uDEA4",
			"⚓","\uD83D\uDE80","✈","\uD83D\uDE81","\uD83D\uDE82","\uD83D\uDE8B","\uD83D\uDE8E","\uD83D\uDE8C","\uD83D\uDE99","\uD83D\uDE97","\uD83D\uDE95","\uD83D\uDE9B",
			"\uD83D\uDEA8","\uD83D\uDE94","\uD83D\uDE92","\uD83D\uDE91","\uD83D\uDEB2","\uD83D\uDEA0","\uD83D\uDE9C","\uD83D\uDEA6","⚠","\uD83D\uDEA7","⛽","\uD83C\uDFB0",
			"\uD83D\uDDFF","\uD83C\uDFAA","\uD83C\uDFAD","\uD83C\uDDEF\uD83C\uDDF5","\uD83C\uDDF0\uD83C\uDDF7","\uD83C\uDDE9\uD83C\uDDEA","\uD83C\uDDE8\uD83C\uDDF3",
			"\uD83C\uDDFA\uD83C\uDDF8","\uD83C\uDDEB\uD83C\uDDF7","\uD83C\uDDEA\uD83C\uDDF8","\uD83C\uDDEE\uD83C\uDDF9","\uD83C\uDDF7\uD83C\uDDFA","\uD83C\uDDEC\uD83C\uDDE7",
			"1⃣","2⃣","3⃣","4⃣","5⃣","6⃣","7⃣","8⃣","9⃣","0⃣","\uD83D\uDD1F","❗","❓","♥","♦","\uD83D\uDCAF","\uD83D\uDD17","\uD83D\uDD31","\uD83D\uDD34",
			"\uD83D\uDD35","\uD83D\uDD36","\uD83D\uDD37"};
	private static final int[] offsets={0, 4, 8, 12, 16};

	private static int bytesToInt(byte[] arr, int offset){
		return (((int)arr[offset] & 0x7F) << 24) | (((int)arr[offset+1] & 0xFF) << 16) | (((int)arr[offset+2] & 0xFF) << 8) | ((int)arr[offset+3] & 0xFF);
	}

	private static long bytesToLong(byte[] arr, int offset){
		return (((long)arr[offset] & 0x7F) << 56) | (((long)arr[offset+1] & 0xFF) << 48) | (((long)arr[offset+2] & 0xFF) << 40) | (((long)arr[offset+3] & 0xFF) << 32) |
		(((long)arr[offset+4] & 0xFF) << 24) | (((long)arr[offset+5] & 0xFF) << 16) | (((long)arr[offset+6] & 0xFF) << 8) | (((long) arr[offset+7] & 0xFF));

	}

	public static String[] emojify(byte[] sha256){
		if(sha256.length!=32)
			throw new IllegalArgumentException("sha256 needs to be exactly 32 bytes");
		String[] result=new String[5];
		for(int i=0;i<5;i++){
			result[i]=emojis[bytesToInt(sha256, offsets[i])%emojis.length];
		}
		return result;
	}

	public static String[] emojifyForCall(byte[] sha256){
		String[] result=new String[4];
		for(int i=0;i<4;i++){
			result[i]=emojis[(int)(bytesToLong(sha256, 8*i)%emojis.length)];
		}
		return result;
	}
}