using System;
using System.Collections.Generic;

namespace I2.Loc;

internal class RTLFixerTool
{
	internal static bool showTashkeel = true;

	internal static bool useHinduNumbers;

	internal static string RemoveTashkeel(string str, out List<TashkeelLocation> tashkeelLocation)
	{
		tashkeelLocation = new List<TashkeelLocation>();
		char[] array = str.ToCharArray();
		int num = 0;
		for (int i = 0; i < array.Length; i++)
		{
			if (array[i] == '\u064b')
			{
				tashkeelLocation.Add(new TashkeelLocation('\u064b', i));
				num++;
			}
			else if (array[i] == '\u064c')
			{
				tashkeelLocation.Add(new TashkeelLocation('\u064c', i));
				num++;
			}
			else if (array[i] == '\u064d')
			{
				tashkeelLocation.Add(new TashkeelLocation('\u064d', i));
				num++;
			}
			else if (array[i] == '\u064e')
			{
				if (num > 0 && tashkeelLocation[num - 1].tashkeel == '\u0651')
				{
					tashkeelLocation[num - 1].tashkeel = 'ﱠ';
					continue;
				}
				tashkeelLocation.Add(new TashkeelLocation('\u064e', i));
				num++;
			}
			else if (array[i] == '\u064f')
			{
				if (num > 0 && tashkeelLocation[num - 1].tashkeel == '\u0651')
				{
					tashkeelLocation[num - 1].tashkeel = 'ﱡ';
					continue;
				}
				tashkeelLocation.Add(new TashkeelLocation('\u064f', i));
				num++;
			}
			else if (array[i] == '\u0650')
			{
				if (num > 0 && tashkeelLocation[num - 1].tashkeel == '\u0651')
				{
					tashkeelLocation[num - 1].tashkeel = 'ﱢ';
					continue;
				}
				tashkeelLocation.Add(new TashkeelLocation('\u0650', i));
				num++;
			}
			else if (array[i] == '\u0651')
			{
				if (num > 0)
				{
					if (tashkeelLocation[num - 1].tashkeel == '\u064e')
					{
						tashkeelLocation[num - 1].tashkeel = 'ﱠ';
						continue;
					}
					if (tashkeelLocation[num - 1].tashkeel == '\u064f')
					{
						tashkeelLocation[num - 1].tashkeel = 'ﱡ';
						continue;
					}
					if (tashkeelLocation[num - 1].tashkeel == '\u0650')
					{
						tashkeelLocation[num - 1].tashkeel = 'ﱢ';
						continue;
					}
				}
				tashkeelLocation.Add(new TashkeelLocation('\u0651', i));
				num++;
			}
			else if (array[i] == '\u0652')
			{
				tashkeelLocation.Add(new TashkeelLocation('\u0652', i));
				num++;
			}
			else if (array[i] == '\u0653')
			{
				tashkeelLocation.Add(new TashkeelLocation('\u0653', i));
				num++;
			}
		}
		string[] array2 = str.Split('\u064b', '\u064c', '\u064d', '\u064e', '\u064f', '\u0650', '\u0651', '\u0652', '\u0653', 'ﱠ', 'ﱡ', 'ﱢ');
		str = "";
		string[] array3 = array2;
		foreach (string text in array3)
		{
			str += text;
		}
		return str;
	}

	internal 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;
	}

	internal static string FixLine(string str)
	{
		string text = "";
		List<TashkeelLocation> tashkeelLocation;
		string text2 = RemoveTashkeel(str, out tashkeelLocation);
		char[] array = text2.ToCharArray();
		char[] array2 = text2.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++)
		{
			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]))
			{
				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);
				}
			}
			text = text + Convert.ToString(array[j], 16) + " ";
			if (flag)
			{
				j++;
			}
			if (useHinduNumbers)
			{
				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] == '[')
				{
					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 if (array2[num] == '[')
				{
					list.Add(']');
				}
				else if (array2[num] == ']')
				{
					list.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();
		}
		array2 = new char[list.Count];
		for (int m = 0; m < array2.Length; m++)
		{
			array2[m] = list[m];
		}
		str = new string(array2);
		return str;
	}

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

	internal static bool IsLeadingLetter(char[] letters, int index)
	{
		bool num = 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] == 'ﻭ' || letters[index - 1] == 'ﺁ' || letters[index - 1] == 'ﺃ' || letters[index - 1] == 'ﺇ' || letters[index - 1] == 'ﺅ';
		bool flag = 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] != 'ﺁ' && letters[index] != 'ﺅ' && letters[index] != 'ﻭ' && letters[index] != 'ﺀ';
		bool flag2 = index < letters.Length - 1 && letters[index + 1] != ' ' && !char.IsPunctuation(letters[index + 1]) && !char.IsNumber(letters[index + 1]) && !char.IsSymbol(letters[index + 1]) && !char.IsLower(letters[index + 1]) && !char.IsUpper(letters[index + 1]) && letters[index + 1] != 'ﺀ';
		if (num && flag && flag2)
		{
			return true;
		}
		return false;
	}

	internal static bool IsFinishingLetter(char[] letters, int index)
	{
		bool num = index != 0 && letters[index - 1] != ' ' && letters[index - 1] != 'ﺩ' && letters[index - 1] != 'ﺫ' && letters[index - 1] != 'ﺭ' && letters[index - 1] != 'ﺯ' && letters[index - 1] != 'ﮊ' && 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] != '<';
		bool flag = letters[index] != ' ' && letters[index] != 'ﺀ';
		if (num && flag)
		{
			return true;
		}
		return false;
	}

	internal static bool IsMiddleLetter(char[] letters, int index)
	{
		bool flag = index != 0 && letters[index] != 'ﺍ' && letters[index] != 'ﺩ' && letters[index] != 'ﺫ' && letters[index] != 'ﺭ' && letters[index] != 'ﺯ' && letters[index] != 'ﮊ' && letters[index] != 'ﻭ' && letters[index] != 'ﺁ' && letters[index] != 'ﺃ' && letters[index] != 'ﺇ' && letters[index] != 'ﺅ' && letters[index] != 'ﺀ';
		bool flag2 = index != 0 && 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] != 'ﻭ' && 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 - 1] != ' ' && letters[index - 1] != '*';
		if (index < letters.Length - 1 && letters[index + 1] != ' ' && letters[index + 1] != '\r' && letters[index + 1] != 'ﺀ' && !char.IsNumber(letters[index + 1]) && !char.IsSymbol(letters[index + 1]) && !char.IsPunctuation(letters[index + 1]) && flag2 && flag)
		{
			try
			{
				if (char.IsPunctuation(letters[index + 1]))
				{
					return false;
				}
				return true;
			}
			catch
			{
				return false;
			}
		}
		return false;
	}
}