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

namespace Computer_Science_Pre_Release {
    class Program {
        static void Main(string[] args) {
            //declare the variable
            string[,] items;

            //amount of items
            int itemcount;
            //out of stock counter
            int itemsleft;

            //ask for amount of items sold
            Console.WriteLine("How many items would you like to sell today?");

            while (!int.TryParse(Console.ReadLine(), out itemcount) && itemcount <= 0) {
                Console.WriteLine("Please enter a valid number!");
            }

            // set itemsleft to itemcount
            itemsleft = itemcount;

            // add item number, description, reserve price
            items = new string[itemcount, 3];

            // loop over every item
            for (var i = 0; i < itemcount; i++) {
                Console.WriteLine("Please add a description to your item");
                items[i, 0] = Console.ReadLine();

                Console.WriteLine("What is the reserve price of your item?");

                int reserve;
                while (int.TryParse(Console.ReadLine(), out reserve) && reserve <= 0) {
                    Console.WriteLine("Please enter a valid number!");
                }

                // set item reserve
                items[i, 1] = reserve.ToString();
            }

            // while items are left to be sold
            while (itemsleft > 0) {
                try {
                    // item id
                    int item;
                    // min bid
                    int minbid;
                    // userbid
                    int userbid;
                    // currentbid
                    int currentbid;
                    // final price with 10%
                    decimal finalprice;

                    Console.WriteLine("What product would you like to bid on?");

                    while (!int.TryParse(Console.ReadLine(), out item) && item < 0 && item > itemcount - 1) {
                        Console.WriteLine("Please enter a valid number!");
                    }

                    Console.WriteLine("Item Description :" + Environment.NewLine + items[item, 0]);
                    Console.WriteLine("Reserve Price:" + Environment.NewLine + items[item, 1]);

                    minbid = int.Parse(items[item, 1]); // no check as number is valid from before

                    if (!int.TryParse(items[item, 2], out currentbid))
                        currentbid = 0;

                    Console.WriteLine("Current Bid: " + currentbid);
                    Console.WriteLine("What is your bid?");

                    while (!int.TryParse(Console.ReadLine(), out userbid)) {
                        Console.WriteLine("Please enter a valid bid!");
                    }

                    if (userbid >= minbid) {
                        Console.WriteLine("Sold!");
                        finalprice = Convert.ToDecimal(userbid * 1.1);
                        Console.WriteLine("Price with fees: " + finalprice);
                        itemsleft -= 1;
                    }
                    else if (userbid > currentbid) {
                        Console.WriteLine("Bid Sucessfull!");
                        items[item, 2] = userbid.ToString();
                    }
                    //bid too low
                    else {
                        Console.WriteLine("Your bid is too low!");
                    }
                }
                //unknown error
                catch {
                    Console.WriteLine("An unknown error occured!");
                }
            }

            Console.WriteLine("Auction complete!");
            Console.ReadLine();
        }
    }
}