using System;
using System.Collections.Generic;
using System.Linq;

namespace AsbCloudInfrastructure
{
    public static class Helper
    {
        public static T Max<T>(params T[] items)
            where T : IComparable
        {
            var count = items.Length;
            if (count < 1)
                throw new ArgumentException("Count of params must be greater than 1");

            var max = items[0];
            for (var i = 1; i < count; i++)
                if (max.CompareTo(items[i]) < 0)
                    max = items[i];

            return max;
        }

        public static T Min<T>(params T[] items)
            where T : IComparable
        {
            var count = items.Length;
            if (count < 1)
                throw new ArgumentException("Count of params must be greater than 1");

            var min = items[0];
            for (var i = 1; i < count; i++)
                if (min.CompareTo(items[i]) > 0)
                    min = items[i];

            return min;
        }

        public static (T min, T max) MinMax<T>(params T[] items)
            where T : IComparable
        {
            var count = items.Length;
            if (count < 1)
                throw new ArgumentException("Count of params must be greater than 1");

            var min = items[0];
            var max = items[0];
            for (var i = 1; i < count; i++)
                if (max.CompareTo(items[i]) < 0)
                    max = items[i];
                else if (min.CompareTo(items[i]) > 0)
                    min = items[i];

            return (min, max);
        }
    }
}