using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;

namespace TestDependencyInjection.Lib
{
    namespace Faker
    {
        public static class NumberFaker
        {
            private static Random _random = new Random();

            public static int Number()
            {
                return _random.Next();
            }

            public static int Number(int maxValue)
            {
                return _random.Next(maxValue);
            }

            public static int Number(int minValue, int maxValue)
            {
                return _random.Next(minValue, maxValue);
            }
        }

        public static class ArrayFaker
        {
            public static T SelectFrom<T>(params T[] array)
            {
                var index = NumberFaker.Number(0, array.Length);
                return (T)array.GetValue(index);
            }

            public static T[] SelectFrom<T>(int numElements, params T[] array)
            {
                var returned = new T[numElements];
                while (numElements > 0)
                {
                    returned[numElements - 1] = SelectFrom(array);
                    numElements--;
                }

                return returned;
            }
        }

        public static class BooleanFaker
        {
            public static bool Boolean()
            {
                return NumberFaker.Number(2) == 1;
            }
        }

        public static class NameFaker
        {
            public static string LastName()
            {
                return ArrayFaker.SelectFrom(
                    "Abel", "Anderson", "Andrews", "Anthony", "Baker", "Brown", "Burrows", "Clark", "Clarke", "Clarkson", "Davidson", "Davies", "Davis", "Dent", "Edwards", "Garcia", "Grant", "Hall", "Harris", "Harrison", "Jackson", "Jeffries", "Jefferson", "Johnson", "Jones", "Kirby", "Kirk", "Lake", "Lee", "Lewis", "Martin", "Martinez", "Major", "Miller", "Moore", "Oates", "Peters", "Peterson", "Robertson", "Robinson", "Rodriguez", "Smith", "Smythe", "Stevens", "Taylor", "Thatcher", "Thomas", "Thompson", "Walker", "Washington", "White", "Williams", "Wilson", "Yorke"
                );
            }

            public static string FemaleFirstName()
            {
                return ArrayFaker.SelectFrom(
                    "Alison", "Ann", "Anna", "Anne", "Barbara", "Betty", "Beryl", "Carol", "Charlotte", "Cheryl", "Deborah", "Diana", "Donna", "Dorothy", "Elizabeth", "Eve", "Felicity", "Fiona", "Helen", "Helena", "Jennifer", "Jessica", "Judith", "Karen", "Kimberly", "Laura", "Linda", "Lisa", "Lucy", "Margaret", "Maria", "Mary", "Michelle", "Nancy", "Patricia", "Polly", "Robyn", "Ruth", "Sandra", "Sarah", "Sharon", "Susan", "Tabitha", "Ursula", "Victoria", "Wendy"
                );
            }

            public static string MaleFirstName()
            {
                return ArrayFaker.SelectFrom(
                    "Adam", "Anthony", "Arthur", "Brian", "Charles", "Christopher", "Daniel", "David", "Donald", "Edgar", "Edward", "Edwin", "George", "Harold", "Herbert", "Hugh", "James", "Jason", "John", "Joseph", "Kenneth", "Kevin", "Marcus", "Mark", "Matthew", "Michael", "Paul", "Philip", "Richard", "Robert", "Roger", "Ronald", "Simon", "Steven", "Terry", "Thomas", "William"
                );
            }

            public static string FirstName()
            {
                return BooleanFaker.Boolean() ? FemaleFirstName() : MaleFirstName();
            }

            public static string MaleName()
            {
                return MaleFirstName() + " " + LastName();
            }

            public static string FemaleName()
            {
                return FemaleFirstName() + " " + LastName();
            }

            public static string Name()
            {
                return FirstName() + " " + LastName();
            }
        }

        public static class TextFaker
        {
            public static string Sentence()
            {
                return Sentences(1);
            }

            public static string Sentences(int numSentences)
            {
                return String.Join(". ", ArrayFaker.SelectFrom(numSentences,
                        "Lorem ipsum dolor sit amet  consectetur adipisicing elit sed do eiusmod tempor incididunt ut labore et dolore magna aliqua",
                        "Ut enim ad minim veniam quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat",
                        "Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur",
                        "Excepteur sint occaecat cupidatat non proident sunt in culpa qui officia deserunt mollit anim id est laborum"
                    ));
            }
        }

        public static class DateTimeFaker
        {
            public static DateTime DateTime(DateTime from, DateTime to)
            {
                var timeSpan = to - from;
                return from.AddDays((double)NumberFaker.Number(1, (int)timeSpan.TotalDays - 1)).AddSeconds(NumberFaker.Number(1, 86400));
            }

            public static DateTime DateTime()
            {
                return DateTimeBetweenDays(5);
            }

            public static DateTime DateTimeBetweenDays(double fromDays, double toDays)
            {
                return DateTime(System.DateTime.Now.AddDays(-1 * fromDays), System.DateTime.Now.AddDays(toDays));
            }

            public static DateTime DateTimeBetweenDays(double days)
            {
                return DateTime(System.DateTime.Now.AddDays(-1 * days), System.DateTime.Now.AddDays(days));
            }

            public static DateTime DateTimeBetweenMonths(int fromMonths, int toMonths)
            {
                return DateTime(System.DateTime.Now.AddMonths(-1 * fromMonths), System.DateTime.Now.AddMonths(toMonths));
            }

            public static DateTime DateTimeBetweenMonths(int months)
            {
                return DateTime(System.DateTime.Now.AddMonths(-1 * months), System.DateTime.Now.AddMonths(months));
            }

            public static DateTime DateTimeBetweenYears(int fromYears, int toYears)
            {
                return DateTime(System.DateTime.Now.AddYears(-1 * fromYears), System.DateTime.Now.AddYears(toYears));
            }

            public static DateTime DateTimeBetweenYears(int years)
            {
                return DateTime(System.DateTime.Now.AddYears(-1 * years), System.DateTime.Now.AddDays(years));
            }

            public static DateTime BirthDay(int minAge, int maxAge)
            {
                return DateTimeBetweenYears(maxAge, minAge);
            }

            public static DateTime BirthDay(int minAge)
            {
                return DateTimeBetweenYears(100, minAge);
            }

            public static DateTime BirthDay()
            {
                return BirthDay(18);
            }
        }
    }
}