using System;

​

// Robert Oswald

namespace ShaneTime

{

    class Program

    {

        static void Main(string[] args)

        {

            Question1();

            Question2();

            Question3();

            Question4();

        }

        static public void Question1()

        {

             // Define the variables

            decimal retailPricePerUnit = 8.98m;

            int unitsSold = 123569;

            int unitsReturned = 3569;

            decimal distributionDiscounts = 68845.36m;

            decimal royaltyRate = 0.045m; // 4.5% as a decimal

​

            // A. Gross sales

            decimal grossSales = CalculateGrossSales(unitsSold, retailPricePerUnit);

            // B. Calculate net sales (including sales value of returned units)

            decimal netSales = CalculateNetSales(unitsSold, unitsReturned, retailPricePerUnit, distributionDiscounts);

​

            // C. Calculate royalty amount

            decimal royaltyAmount = CalculateRoyalty(netSales, royaltyRate);

​

            // Display the results

            Console.WriteLine($"Question 1:");

            Console.WriteLine($"A. Gross sales of Cowboy Jim action figure in Q1: ${grossSales:F2}");

            Console.WriteLine($"B. Net sales after deductions in Q1: ${netSales:F2}");

            Console.WriteLine($"C. Royalty amount ShaneTime Entertainment will receive for Q1: ${royaltyAmount:F2}");

        }

        static public void Question2()

        {

            //  Cowboy Jim

            decimal retailPricePerUnitCowboyJim = 8.98m;

            int unitsSoldCowboyJimQ2 = 129747;

            int unitsReturnedCowboyJimQ2 = 3747;

            decimal tradeDiscountsCowboyJimQ2 = 72287.63m;

            decimal royaltyRateCowboyJim = 0.045m; 

​

            // Charlie Horse

            decimal retailPricePerUnitCharlieHorse = 6.99m;

            int unitsSoldCharlieHorseQ2 = 62875;

            int unitsReturnedCharlieHorseQ2 = 1478;

            decimal tradeDiscountsCharlieHorseQ2 = 16521.06m;

            decimal royaltyRateCharlieHorse = 0.0348m; 

​

            // commission rate for the Armstrong Agency

            decimal commissionRateArmstrongAgency = 0.05m;

​

            // A. Calculate the combined net sales of Cowboy Jim and Charlie Horse for Q2

            decimal netSalesCowboyJimQ2 = CalculateNetSales(unitsSoldCowboyJimQ2, unitsReturnedCowboyJimQ2, retailPricePerUnitCowboyJim, tradeDiscountsCowboyJimQ2);

            decimal netSalesCharlieHorseQ2 = CalculateNetSales(unitsSoldCharlieHorseQ2, unitsReturnedCharlieHorseQ2, retailPricePerUnitCharlieHorse, tradeDiscountsCharlieHorseQ2);

            decimal combinedNetSalesQ2 = netSalesCowboyJimQ2 + netSalesCharlieHorseQ2;

​

            // B. Calculate the return rate of the Cowboy Jim action figure for Q1 and Q2

            int totalUnitsSoldCowboyJimQ1 = 123569;

            int totalUnitsReturnedCowboyJimQ1 = 3569;

            int totalUnitsSoldCowboyJim = totalUnitsSoldCowboyJimQ1 + unitsSoldCowboyJimQ2;

            int totalUnitsReturnedCowboyJim = totalUnitsReturnedCowboyJimQ1 + unitsReturnedCowboyJimQ2;

            decimal returnRateCowboyJim = CalculateItemReturnRate(totalUnitsSoldCowboyJim, totalUnitsReturnedCowboyJim);

​

            // C. Calculate the commission due to the Armstrong Agency for both Cowboy Jim and Charlie in Q2

            decimal royaltyCowboyJimQ2 = CalculateRoyalty(netSalesCowboyJimQ2, royaltyRateCowboyJim);

            decimal royaltyCharlieHorseQ2 = CalculateRoyalty(netSalesCharlieHorseQ2, royaltyRateCharlieHorse);

            decimal totalRoyaltyQ2 = royaltyCowboyJimQ2 + royaltyCharlieHorseQ2;

            decimal totalArmstrongAgencyCommissionQ2 = CalculateRoyalty(totalRoyaltyQ2, commissionRateArmstrongAgency);

​

            // Display the results

            Console.WriteLine($"\nQuestion 2:");

            Console.WriteLine($"A. Combined net sales of Cowboy Jim and Charlie Horse for Q2: ${combinedNetSalesQ2:F2}");

            Console.WriteLine($"B. Return rate of Cowboy Jim action figure for Q1 and Q2: {returnRateCowboyJim:P}");

            Console.WriteLine($"C. Commission due to the Armstrong Agency for both Cowboy Jim and Charlie in Q2: ${totalArmstrongAgencyCommissionQ2:F2}");

        }

        static public void Question3()

        {

             //Cowboy Jim

            int unitsSoldCowboyJimQ1 = 123569;

            int unitsSoldCowboyJimQ2 = 129747;

            decimal retailPricePerUnitCowboyJim = 8.98m;

            int unitsReturnedCowboyJimQ2 = 3747;

            decimal tradeDiscountsCowboyJimQ2 = 72287.63m;

            decimal royaltyRateCowboyJim = 0.045m; 

            // Define the commission rate for the Armstrong Agency

            decimal commissionRateArmstrongAgency = 0.05m;

            // Find growth rate

            decimal cowboyJimGrowthRateQ1Q2 = decimal.Divide(unitsSoldCowboyJimQ2 - unitsSoldCowboyJimQ1, unitsSoldCowboyJimQ1);

​

            int unitsReturnedCowboyJimQ4 = Decimal.ToInt32(ProjectGrowth(Convert.ToDecimal(unitsReturnedCowboyJimQ2), cowboyJimGrowthRateQ1Q2, 2));

            decimal netSalesCowboyJimQ2 = CalculateNetSales(unitsSoldCowboyJimQ2, unitsReturnedCowboyJimQ2, retailPricePerUnitCowboyJim, tradeDiscountsCowboyJimQ2);

            decimal royaltyCowboyJimQ2 = CalculateRoyalty(netSalesCowboyJimQ2, royaltyRateCowboyJim);

            decimal totalArmstrongAgencyCommissionQ2 = CalculateRoyalty(royaltyCowboyJimQ2, commissionRateArmstrongAgency);

            decimal projectedQ4CowboyJimRoyalties = ProjectGrowth(royaltyCowboyJimQ2, cowboyJimGrowthRateQ1Q2, 2);

            decimal projectedQ4AgencyCommission = ProjectGrowth(totalArmstrongAgencyCommissionQ2, cowboyJimGrowthRateQ1Q2, 2);

​

            // Display the results

            Console.WriteLine($"\nQuestion 3:");

            Console.WriteLine($"A. Projected Q4 returns for Cowboy Jim: {unitsReturnedCowboyJimQ4:F0} units");

            Console.WriteLine($"B. Projected Q4 royalty amount for Cowboy Jim: ${projectedQ4CowboyJimRoyalties:F2}");

            Console.WriteLine($"C. Projected Q4 agency commission for Cowboy Jim: ${projectedQ4AgencyCommission:F2}");

        }

        static public void Question4()

        {

            // Define the exchange rates

            decimal exchangeRateJPYToUSD = 0.0092m; // 1 JPY = 0.0092 USD

            decimal exchangeRateRUBToUSD = 0.016m; // 1 RUB = 0.016 USD

​

            // sales in Japan

            int unitsSoldJapan = 89125;

            decimal pricePerUnitJapanJPY = 651.09m;

            int unitsReturnedJapan = 987;

            decimal discountsJapanJPY = 1160567.93m;

​

            // sales in Russia

            int unitsSoldRussia = 101587;

            decimal pricePerUnitRussiaRUB = 476.88m;

            int unitsReturnedRussia = 2478;

            decimal discountsRussiaRUB = 1453344.26m;

​

            // sales in the United States

            int unitsSoldUS = 286417;

            decimal pricePerUnitUS = 7.99m;

            int unitsReturnedUS = 6521;

            decimal discountsUS = 85899.62m;

​

            // Calculate net sales 

            decimal netSalesJapan = CalculateNetSales(unitsSoldJapan, unitsReturnedJapan, pricePerUnitJapanJPY, discountsJapanJPY);

            decimal netSalesRussia = CalculateNetSales(unitsSoldRussia, unitsReturnedRussia, pricePerUnitRussiaRUB, discountsRussiaRUB);

            decimal netSalesUS = CalculateNetSales(unitsSoldUS, unitsReturnedUS, pricePerUnitUS, discountsUS);

            // Convert to USD

            decimal netSalesJapanUSD = ConvertCurrencyToUSD(netSalesJapan, exchangeRateJPYToUSD);

            decimal netSalesRussiaUSD = ConvertCurrencyToUSD(netSalesRussia, exchangeRateRUBToUSD);

​

            // Calculate total net sales in USD

            decimal totalNetSalesUSD = netSalesJapanUSD + netSalesRussiaUSD + netSalesUS;

​

            // Calculate royalty in USD on Cowboy Jim 

            decimal royaltyJapanUSD = CalculateRoyalty(netSalesJapanUSD, 0.045m); // 4.5% royalty rate

            decimal royaltyRussiaUSD = CalculateRoyalty(netSalesRussiaUSD, 0.045m); // 4.5% royalty rate

​

            // Calculate commission in USD for Cowboy Jim Sales in Russia

            decimal commissionRussiaUSD = CalculateRoyalty(royaltyRussiaUSD, 0.05m); // 5% commission rate

​

            // Calculate LaBoffe LLC's commission in USD on Cowboy Jim sales in the United States

            decimal royaltyUS = CalculateRoyalty(netSalesUS, 0.045m); // 4.5% royalty rate

            decimal ArmstrongCommissionUS = CalculateRoyalty(royaltyUS, 0.05m); // 5% commission rate

            decimal laboffeCommissionUS = CalculateRoyalty(ArmstrongCommissionUS, 0.025m); // 2.5% of Armstrong Agency's commission

​

            // Display the results

            Console.WriteLine($"\nQuestion 4:");

            Console.WriteLine($"A. Total net sales in USD from all countries in Q2: ${totalNetSalesUSD:F2}");

            Console.WriteLine($"B. ShaneTime Entertainment's royalty in USD on Cowboy Jim sales in Japan: ${royaltyJapanUSD:F2}");

            Console.WriteLine($"C. Armstrong Agency's commission in USD for Cowboy Jim Sales in Russia: ${commissionRussiaUSD:F2}");

            Console.WriteLine($"D. LaBoffe LLC's commission in USD on Cowboy Jim sales in the United States: ${laboffeCommissionUS:F2}");

        }

        private static decimal CalculateGrossSales(int unitsSold, decimal pricePerUnit)

        {

            return unitsSold * pricePerUnit;

        }

        private static decimal CalculateNetSales(int unitsSold, int unitsReturned, decimal pricePerUnit, decimal distributionDiscounts)

        {

            return decimal.Multiply(unitsSold - unitsReturned, pricePerUnit) - distributionDiscounts;

        }

        private static decimal CalculateItemReturnRate(int unitsSold, int unitsReturned)

        {

            return decimal.Divide(unitsReturned, unitsSold);

        }

        private static decimal CalculateRoyalty(decimal netSales, decimal royaltyRate)

        {

            return netSales * royaltyRate;

        }

        private static decimal ConvertCurrencyToUSD(decimal priceInLocalCurrency, decimal exchangeRateToUSD)

        {

            return priceInLocalCurrency * exchangeRateToUSD;

        }

        private static decimal ProjectGrowth(decimal startingAmount, decimal growthRate, int iterations)

        {

            decimal growthProjection = startingAmount;

            for (int i = 0; i < iterations; i++)

            {

                growthProjection = decimal.Multiply(growthProjection , (1 + growthRate));

            }

            return growthProjection;

        }

    }

}

​