/**

  * Back 2 Browser Bytecode Translator

  * Copyright (C) 2012 Jaroslav Tulach <jaroslav.tulach@apidesign.org>

  *

  * This program is free software: you can redistribute it and/or modify

  * it under the terms of the GNU General Public License as published by

  * the Free Software Foundation, version 2 of the License.

  *

  * 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 General Public License for more details.

  *

  * You should have received a copy of the GNU General Public License

  * along with this program. Look for COPYING file in the top folder.

  * If not, see http://opensource.org/licenses/GPL-2.0.

  */

 package org.apidesign.vm4brwsr;

 import org.apidesign.bck2brwsr.core.JavaScriptBody;

 /**

  *

  * @author Jaroslav Tulach <jtulach@netbeans.org>

  */

 public class Array {

     byte[] bytes = { 1 };

     short[] shorts = { 2, 3 };

     int[] ints = { 4, 5, 6 };

     float[] floats = { 7, 8, 9, 10 };

     double[][] doubles = { {11}, {12}, {13}, {14}, {15} };

     char[] chars = { 'a', 'b' };

     private Array() {

     }

     byte bytes() {

         return bytes[0];

     }

     short shorts() {

         return shorts[1];

     }

     int[] ints() {

         return ints;

     }

     float floats() {

         return floats[3];

     }

     double doubles() {

         return doubles[4][0];

     }

     static double[][] dbls = new double[1][2];

     public static double twoDoubles() {

         return dbls[0][0] + dbls[0][0];

     }

     static int[][] tints = new int[1][2];

     public static int twoInts() {

         return tints[0][0] + tints[0][0];

     }

     private static final Array[] ARR = { new Array(), new Array(), new Array() };

     private static Array[][] arr() {

         Array[][] matrix = new Array[3][3];

         for (int i = 0; i < ARR.length; i++) {

             matrix[i][i] = ARR[i];

         }

         return matrix;

     }

     private static <T> T[] filter(T[] in) {

         return in;

     }

     public static double sum() {

         disableClassForName();

         double sum = 0.0;

         for (Array[] row : arr()) {

             int indx = -1;

             for (Array a : row) {

                 indx++;

                 if (a == null) {

                     continue;

                 }

                 sum += a.bytes();

                 sum += a.shorts();

                 sum += a.ints()[2];

                 sum += a.floats();

                 sum += filter(row)[indx].doubles();

             }

         }

         return sum;

     }

     private static final int[] arr = { 0, 1, 2, 3, 4, 5 };

     public static int simple(boolean clone) {

         int[] ar;

         if (clone) {

             ar = arr.clone();

         } else {

             ar = arr;

         }

         int sum = 0;

         for (int a : ar) {

             sum += a;

         }

         return sum;

     }

     public static String objectArrayClass() {

         enableClassForName(prevClassForName);

         prevClassForName = null;

         String s = Object[].class.getName();

         disableClassForName();

         return s;

     }

     public static boolean instanceOfArray(Object obj) {

         if ("string-array".equals(obj)) {

             obj = new String[] { "Ahoj" };

         }

         return obj instanceof Object[];

     }

     public static boolean castArray(int type) {

         try {

             Object orig = new Object();

             Object res = orig;

             if (type == 0) {

                 Object[] arr = new Integer[1];

                 String[] str = (String[]) arr;

                 res = str;

             }

             if (type == 1) {

                 Object[] arr = null;

                 String[] str = (String[]) arr;

                 res = str;

             }

             if (type == 2) {

                 Object[] arr = new String[1];

                 String[] str = (String[]) arr;

                 res = str;

             }

             if (type == 3) {

                 Object[] arr = new String[1];

                 CharSequence[] str = (CharSequence[]) arr;

                 res = str;

             }

             return res != orig;

         } catch (ClassCastException ex) {

             return false;

         }

     }

     public static int sum(int size) {

         int[] arr = new int[size];

         return arr[0] + arr[1];

     }

     static void arraycopy(char[] value, int srcBegin, char[] dst, int dstBegin, int count) {

         while (count-- > 0) {

             dst[dstBegin++] = value[srcBegin++];

         }

     }

     public static char copyArray() {

         char[] arr = { '0' };

         arraycopy(arr()[0][0].chars, 0, arr, 0, 1);

         return arr[0];

     }

     @JavaScriptBody(args = {  }, body = 

         "var prev = vm.java_lang_Class(false).forName__Ljava_lang_Class_2Ljava_lang_String_2;\n"

       + "if (!prev) throw 'forName not defined';\n"

       + "vm.java_lang_Class(false).forName__Ljava_lang_Class_2Ljava_lang_String_2 = function(s) {\n"

       + "  throw 'Do not call me: ' + s;\n"

       + "};\n"

       + "return prev;\n")

     private static Object disableClassForNameImpl() {

         return null;

     }

     private static void disableClassForName() {

         if (prevClassForName == null) {

             prevClassForName = disableClassForNameImpl();

         }

     }

     @JavaScriptBody(args = { "fn" }, body = 

         "if (fn !== null) vm.java_lang_Class(false).forName__Ljava_lang_Class_2Ljava_lang_String_2 = fn;"

     )

     private static void enableClassForName(Object fn) {

     }

     private static Object prevClassForName;

     public static String nameOfClonedComponent() {

         disableClassForName();

         Object[] intArr = new Integer[10];

         intArr = intArr.clone();

         return intArr.getClass().getComponentType().getName();

     }

     public static int multiLen() {

         return new int[1][0].length;

     }

     @JavaScriptBody(args = { "arr" }, body = 

         "var cnt = '';\n" +

         "if (arr === null) arr = [];\n" +

         "for (var i in arr) { cnt += i; }\n" +

         "return cnt;\n"

     )

     private static native String iterateArray(Object[] arr);

     public static String iterateArray(boolean javaArray) {

         return iterateArray(javaArray ? new String[0] : null);

     }

 }