namespace ConsoleApp1;

using System.Text;

public class Task22
{
    private const string MinPostfix = "(min)";
    private const string MaxPostfix = "(max)";

    public void Run()
    {
        Console.InputEncoding = Encoding.Unicode;
        Console.OutputEncoding = Encoding.Unicode;

        int randomRangeIncludedLowBound = 1;
        int randomRangeExcludedHighBound = 10;
        Random random = new Random();

        int minimumArrayLength = 1;
        int minimumsMaximumsCalculationLength = 2;

        ConsoleColor defaultColor = ConsoleColor.White;
        ConsoleColor localMinimumColor = ConsoleColor.Red;
        ConsoleColor localMaximumColor = ConsoleColor.Green;

        bool canExit = false;

        while ( canExit == false )
        {
            Console.Clear();

            int arrayLength = 0;

            while ( arrayLength < minimumArrayLength )
            {
                Console.Write( $"Input array length equal or greater than {minimumArrayLength} : " );
                arrayLength = int.Parse( Console.ReadLine() );
            }

            int[] array = new int[arrayLength];

            for ( int i = 0; i < arrayLength; i++ )
                array[i] = random.Next( randomRangeIncludedLowBound, randomRangeExcludedHighBound );

            if ( arrayLength < minimumsMaximumsCalculationLength )
            {
                int firstElementIndex = 0;
                Console.WriteLine($"Array contains one element {array[firstElementIndex]} and can not have minimums/maximums");
            }
            else
            {
                for ( int i = 0; i < arrayLength; i++ )
                {
                    Console.ForegroundColor = defaultColor;

                    bool isFirst = i == 0;
                    bool isLast = i == arrayLength - 1;

                    bool isLocalMinimum = isFirst && array[i + 1] > array[i];
                    isLocalMinimum |= isLast && array[i - 1] > array[i];
                    isLocalMinimum |= isLast == false && isFirst == false && array[i + 1] > array[i] && array[i - 1] > array[i];

                    bool isLocalMaximum = isFirst && array[i + 1] < array[i];
                    isLocalMaximum |= isLast && array[i - 1] < array[i];
                    isLocalMaximum |= isLast == false && isFirst == false && array[i + 1] < array[i] && array[i - 1] < array[i];

                    ConsoleColor elementColor = isLocalMinimum
                        ? localMinimumColor
                        : isLocalMaximum
                            ? localMaximumColor
                            : defaultColor;

                    string elementPostfix = isLocalMinimum
                        ? MinPostfix
                        : isLocalMaximum
                            ? MaxPostfix
                            : string.Empty;

                    Console.ForegroundColor = elementColor;
                    Console.Write( $"{array[i]}{elementPostfix} " );
                }

                Console.WriteLine();
            }

            Console.ForegroundColor = defaultColor;

            string properlyExitAnswer = "n";
            Console.WriteLine( $"Continue? Enter \'{properlyExitAnswer}\' for exit" );
            string continueAnswer = Console.ReadLine();

            canExit = string.Equals( continueAnswer, properlyExitAnswer );
        }
    }
}