using System;
using System.IO;
using System.Collections.Generic;


namespace Q4
{
    class Program
    {
        static void Main(string[] args)
        {
            string[] lines = File.ReadAllLines(@"bus_174.csv");
            string[] header = lines[0].Split(",");
            Console.WriteLine("{0,-15}{1,-15}{2,-20}{3,-20}", header[0], header[1], header[2], header[3]);
            List<double> distance = new List<double>();
            List<string> codes = new List<string>();
            for (int i = 1; i < lines.Length; i++)
            {
                string[] data = lines[i].Split(",");
                Console.WriteLine("{0,-15}{1,-15}{2,-20}{3,-20}", data[0], data[1], data[2], data[3]);
                distance.Add(Convert.ToDouble(data[0]));
                codes.Add(data[1]);
            }
            string[] fare = File.ReadAllLines(@"distance-based-fare.csv");
            Console.Write("Enter boarding bus stop: ");
            string board = Convert.ToString(Console.ReadLine());
            Console.Write("Enter alighting bus stop: ");
            string alight = Convert.ToString(Console.ReadLine());
            double start = 0;
            double aligh = 0;
            decimal result = 0;
            for (int i = 0; i < codes.Count; i++)
            {
                if (board == codes[i])
                {
                    start = distance[i];
                    break;
                }
                else
                {
                    continue;
                }
            }
            for (int j = 0; j < codes.Count; j++)
            {
                if (alight == codes[j])
                {
                    aligh = distance[j];
                }
                else
                {
                    continue;
                }
            }
            if (start != 0 && aligh != 0)
            {
                result = Convert.ToDecimal(aligh - start);
                result = Math.Round(result, 2);
                Console.WriteLine("Difference travelled : {0}km.", result);
            }
            else
            {
                Console.WriteLine("Incorrect bus stop number.");
                return;
            }
            List<double> upto = new List<double>();
            List<double> price = new List<double>();
            double final = 0;
            for (int n = 1; n < fare.Length; n++)
            {
                string[] tempo = fare[n].Split(",");
                upto.Add(Convert.ToDouble(tempo[0]));
                price.Add(Convert.ToDouble(tempo[1]));
            }
            for (int f = 0; f < price.Count; f++)
            {
                    if (result <= Convert.ToDecimal(upto[f]))
                    {
                        final = price[f]/100;

                        Console.WriteLine("Fare to pay : ${0}", final);
                        break;
                    }
                    else
                        continue;
            }
            decimal time = result * 4;
            Console.WriteLine("Estimated Duration: {0} mins", time);




        }
    }
}