using System;
using System.Collections.Generic;

namespace CIG.Translation.ArabicSupport
{
    public class ArabicFixerTool
    {
        public static bool showTashkeel = true;

        public static bool useHinduNumbers;

        private static bool isParsingColor;

        private static string RemoveTashkeel(string str, out List<TashkeelLocation> tashkeelLocation)
        {
            tashkeelLocation = new List<TashkeelLocation>();
            char[] array = str.ToCharArray();
            for (int i = 0; i < array.Length; i++)
            {
                if (array[i] == '\u064b')
                {
                    tashkeelLocation.Add(new TashkeelLocation('\u064b', i));
                }
                else if (array[i] == '\u064c')
                {
                    tashkeelLocation.Add(new TashkeelLocation('\u064c', i));
                }
                else if (array[i] == '\u064d')
                {
                    tashkeelLocation.Add(new TashkeelLocation('\u064d', i));
                }
                else if (array[i] == '\u064e')
                {
                    tashkeelLocation.Add(new TashkeelLocation('\u064e', i));
                }
                else if (array[i] == '\u064f')
                {
                    tashkeelLocation.Add(new TashkeelLocation('\u064f', i));
                }
                else if (array[i] == '\u0650')
                {
                    tashkeelLocation.Add(new TashkeelLocation('\u0650', i));
                }
                else if (array[i] == '\u0651')
                {
                    tashkeelLocation.Add(new TashkeelLocation('\u0651', i));
                }
                else if (array[i] == '\u0652')
                {
                    tashkeelLocation.Add(new TashkeelLocation('\u0652', i));
                }
                else if (array[i] == '\u0653')
                {
                    tashkeelLocation.Add(new TashkeelLocation('\u0653', i));
                }
            }
            string[] array2 = str.Split('\u064b', '\u064c', '\u064d', '\u064e', '\u064f', '\u0650', '\u0651', '\u0652', '\u0653');
            str = string.Empty;
            string[] array3 = array2;
            foreach (string str2 in array3)
            {
                str += str2;
            }
            return str;
        }

        private static char[] ReturnTashkeel(char[] letters, List<TashkeelLocation> tashkeelLocation)
        {
            char[] array = new char[letters.Length + tashkeelLocation.Count];
            int num = 0;
            for (int i = 0; i < letters.Length; i++)
            {
                array[num] = letters[i];
                num++;
                foreach (TashkeelLocation item in tashkeelLocation)
                {
                    if (item.position == num)
                    {
                        array[num] = item.tashkeel;
                        num++;
                    }
                }
            }
            return array;
        }

        public static string FixLine(string str)
        {
            string str2 = string.Empty;
            List<TashkeelLocation> tashkeelLocation;
            string text = RemoveTashkeel(str, out tashkeelLocation);
            char[] array = text.ToCharArray();
            char[] array2 = text.ToCharArray();
            for (int i = 0; i < array.Length; i++)
            {
                array[i] = (char)ArabicTable.ArabicMapper.Convert(array[i]);
            }
            for (int j = 0; j < array.Length; j++)
            {
                if (j + 5 <= str.Length && str.Substring(j, 5) == "color")
                {
                    isParsingColor = true;
                }
                if (array[j] == '>')
                {
                    isParsingColor = false;
                }
                bool flag = false;
                if (array[j] == 'ﻝ' && j < array.Length - 1)
                {
                    if (array[j + 1] == 'ﺇ')
                    {
                        array[j] = 'ﻷ';
                        array2[j + 1] = '\uffff';
                        flag = true;
                    }
                    else if (array[j + 1] == 'ﺍ')
                    {
                        array[j] = 'ﻹ';
                        array2[j + 1] = '\uffff';
                        flag = true;
                    }
                    else if (array[j + 1] == 'ﺃ')
                    {
                        array[j] = 'ﻵ';
                        array2[j + 1] = '\uffff';
                        flag = true;
                    }
                    else if (array[j + 1] == 'ﺁ')
                    {
                        array[j] = 'ﻳ';
                        array2[j + 1] = '\uffff';
                        flag = true;
                    }
                }
                if (!IsIgnoredCharacter(array[j]) && array[j] != 'A' && array[j] != 'A')
                {
                    if (IsMiddleLetter(array, j))
                    {
                        array2[j] = (char)(array[j] + 3);
                    }
                    else if (IsFinishingLetter(array, j))
                    {
                        array2[j] = (char)(array[j] + 1);
                    }
                    else if (IsLeadingLetter(array, j))
                    {
                        array2[j] = (char)(array[j] + 2);
                    }
                }
                str2 = str2 + Convert.ToString(array[j], 16) + " ";
                if (flag)
                {
                    j++;
                }
                if (useHinduNumbers && !isParsingColor)
                {
                    if (array[j] == '0')
                    {
                        array2[j] = '٠';
                    }
                    else if (array[j] == '1')
                    {
                        array2[j] = '١';
                    }
                    else if (array[j] == '2')
                    {
                        array2[j] = '٢';
                    }
                    else if (array[j] == '3')
                    {
                        array2[j] = '٣';
                    }
                    else if (array[j] == '4')
                    {
                        array2[j] = '٤';
                    }
                    else if (array[j] == '5')
                    {
                        array2[j] = '٥';
                    }
                    else if (array[j] == '6')
                    {
                        array2[j] = '٦';
                    }
                    else if (array[j] == '7')
                    {
                        array2[j] = '٧';
                    }
                    else if (array[j] == '8')
                    {
                        array2[j] = '٨';
                    }
                    else if (array[j] == '9')
                    {
                        array2[j] = '٩';
                    }
                }
            }
            if (showTashkeel)
            {
                array2 = ReturnTashkeel(array2, tashkeelLocation);
            }
            List<char> list = new List<char>();
            List<char> list2 = new List<char>();
            for (int num = array2.Length - 1; num >= 0; num--)
            {
                if (char.IsPunctuation(array2[num]) && num > 0 && num < array2.Length - 1 && (char.IsPunctuation(array2[num - 1]) || char.IsPunctuation(array2[num + 1])))
                {
                    if (array2[num] == '(')
                    {
                        list.Add(')');
                    }
                    else if (array2[num] == ')')
                    {
                        list.Add('(');
                    }
                    else if (array2[num] == '<')
                    {
                        list.Add('>');
                    }
                    else if (array2[num] == '>')
                    {
                        list.Add('<');
                    }
                    else if (array2[num] != '\uffff')
                    {
                        list.Add(array2[num]);
                    }
                }
                else if (array2[num] == ' ' && num > 0 && num < array2.Length - 1 && (char.IsLower(array2[num - 1]) || char.IsUpper(array2[num - 1]) || char.IsNumber(array2[num - 1])) && (char.IsLower(array2[num + 1]) || char.IsUpper(array2[num + 1]) || char.IsNumber(array2[num + 1])))
                {
                    list2.Add(array2[num]);
                }
                else if (char.IsNumber(array2[num]) || char.IsLower(array2[num]) || char.IsUpper(array2[num]) || char.IsSymbol(array2[num]) || char.IsPunctuation(array2[num]))
                {
                    if (array2[num] == '(')
                    {
                        list2.Add(')');
                    }
                    else if (array2[num] == ')')
                    {
                        list2.Add('(');
                    }
                    else if (array2[num] == '<')
                    {
                        list2.Add('>');
                    }
                    else if (array2[num] == '>')
                    {
                        list2.Add('<');
                    }
                    else
                    {
                        list2.Add(array2[num]);
                    }
                }
                else if ((array2[num] >= '\ud800' && array2[num] <= '\udbff') || (array2[num] >= '\udc00' && array2[num] <= '\udfff'))
                {
                    list2.Add(array2[num]);
                }
                else
                {
                    if (list2.Count > 0)
                    {
                        for (int k = 0; k < list2.Count; k++)
                        {
                            list.Add(list2[list2.Count - 1 - k]);
                        }
                        list2.Clear();
                    }
                    if (array2[num] != '\uffff')
                    {
                        list.Add(array2[num]);
                    }
                }
            }
            if (list2.Count > 0)
            {
                for (int l = 0; l < list2.Count; l++)
                {
                    list.Add(list2[list2.Count - 1 - l]);
                }
                list2.Clear();
            }
            char[] array3 = new char[list.Count];
            for (int m = 0; m < array3.Length; m++)
            {
                array3[m] = list[m];
            }
            str = new string(array3);
            return str;
        }

        private static bool IsIgnoredCharacter(char ch)
        {
            bool flag = char.IsPunctuation(ch);
            bool flag2 = char.IsNumber(ch);
            bool flag3 = char.IsLower(ch);
            bool flag4 = char.IsUpper(ch);
            bool flag5 = char.IsSymbol(ch);
            bool flag6 = ch == 'ﭖ' || ch == 'ﭺ' || ch == 'ﮊ' || ch == 'ﮒ';
            bool flag7 = (ch <= '\ufeff' && ch >= 'ﹰ') || flag6;
            return flag || flag2 || flag3 || flag4 || flag5 || !flag7 || ch == 'a' || ch == '>' || ch == '<' || ch == '؛';
        }

        private static bool IsLeadingLetter(char[] letters, int index)
        {
            return (index == 0 || letters[index - 1] == ' ' || letters[index - 1] == '*' || letters[index - 1] == 'A' || char.IsPunctuation(letters[index - 1]) || letters[index - 1] == '>' || letters[index - 1] == '<' || letters[index - 1] == 'ﺍ' || letters[index - 1] == 'ﺩ' || letters[index - 1] == 'ﺫ' || letters[index - 1] == 'ﺭ' || letters[index - 1] == 'ﺯ' || letters[index - 1] == 'ﮊ' || letters[index - 1] == 'ﻯ' || letters[index - 1] == 'ﻭ' || letters[index - 1] == 'ﺁ' || letters[index - 1] == 'ﺃ' || letters[index - 1] == 'ﺇ' || letters[index - 1] == 'ﺅ') && letters[index] != ' ' && letters[index] != 'ﺩ' && letters[index] != 'ﺫ' && letters[index] != 'ﺭ' && letters[index] != 'ﺯ' && letters[index] != 'ﮊ' && letters[index] != 'ﺍ' && letters[index] != 'ﺃ' && letters[index] != 'ﺇ' && letters[index] != 'ﻭ' && letters[index] != 'ﺀ' && index < letters.Length - 1 && letters[index + 1] != ' ' && !char.IsPunctuation(letters[index + 1]) && letters[index + 1] != 'ﺀ';
        }

        private static bool IsFinishingLetter(char[] letters, int index)
        {
            return index != 0 && letters[index - 1] != ' ' && letters[index - 1] != '*' && letters[index - 1] != 'A' && letters[index - 1] != 'ﺩ' && letters[index - 1] != 'ﺫ' && letters[index - 1] != 'ﺭ' && letters[index - 1] != 'ﺯ' && letters[index - 1] != 'ﮊ' && letters[index - 1] != 'ﻯ' && letters[index - 1] != 'ﻭ' && letters[index - 1] != 'ﺍ' && letters[index - 1] != 'ﺁ' && letters[index - 1] != 'ﺃ' && letters[index - 1] != 'ﺇ' && letters[index - 1] != 'ﺅ' && letters[index - 1] != 'ﺀ' && !char.IsPunctuation(letters[index - 1]) && letters[index - 1] != '>' && letters[index - 1] != '<' && letters[index] != ' ' && index < letters.Length && letters[index] != 'ﺀ';
        }

        private static bool IsMiddleLetter(char[] letters, int index)
        {
            if (index == 0 || letters[index] == ' ' || letters[index] == 'ﺍ' || letters[index] == 'ﺩ' || letters[index] == 'ﺫ' || letters[index] == 'ﺭ' || letters[index] == 'ﺯ' || letters[index] == 'ﮊ' || letters[index] == 'ﻯ' || letters[index] == 'ﻭ' || letters[index] == 'ﺁ' || letters[index] == 'ﺃ' || letters[index] == 'ﺇ' || letters[index] == 'ﺅ' || letters[index] == 'ﺀ' || letters[index - 1] == 'ﺍ' || letters[index - 1] == 'ﺩ' || letters[index - 1] == 'ﺫ' || letters[index - 1] == 'ﺭ' || letters[index - 1] == 'ﺯ' || letters[index - 1] == 'ﮊ' || letters[index - 1] == 'ﻯ' || letters[index - 1] == 'ﻭ' || letters[index - 1] == 'ﺁ' || letters[index - 1] == 'ﺃ' || letters[index - 1] == 'ﺇ' || letters[index - 1] == 'ﺅ' || letters[index - 1] == 'ﺀ' || letters[index - 1] == '>' || letters[index - 1] == '<' || letters[index - 1] == ' ' || letters[index - 1] == '*' || char.IsPunctuation(letters[index - 1]) || index >= letters.Length - 1 || letters[index + 1] == ' ' || letters[index + 1] == '\r' || letters[index + 1] == 'A' || letters[index + 1] == '>' || letters[index + 1] == '>' || letters[index + 1] == 'ﺀ')
            {
                return false;
            }
            try
            {
                return !char.IsPunctuation(letters[index + 1]);
            }
            catch
            {
                return false;
            }
        }
    }
}