using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

using System.IO;

​

namespace HoursCalc

{

    class Calculator

    {

        public string filename = @"C:\Users\Zachary Jones\Documents\FakeTimeSheet.txt";

​

        public string ClockIn()

        {

            string start = DateTime.Now.ToShortTimeString();

            Console.WriteLine("Clocked in");

            return start;

        }

​

        public string ClockOut() 

        {

            string end = DateTime.Now.ToShortTimeString();

            Console.WriteLine("Clocked out");

            return end;

        }

        public bool WriteData(string date, string inTime, string outTime)

        {

            StreamReader streamReader = new StreamReader(filename);

            string lastline = streamReader.ReadLine();

            while (!streamReader.EndOfStream)

                lastline = streamReader.ReadLine();

            streamReader.Close();

            StreamWriter streamWriter = new StreamWriter(filename);

            if (lastline.Contains('_'))

                streamWriter.WriteLine($"{date} | {inTime} - {outTime}");

            else

                streamWriter.WriteLine($"      | {inTime} - {outTime}");

            Console.WriteLine("Last entry?");

            if (Console.ReadLine() == "yes")

            {

                streamWriter.WriteLine("______|_______________________");

                streamWriter.Close();

                return true;

            }

            else

            {

                streamWriter.Close();

                return false;

            }

        }

​

        public List<string> GetData(string date)

        {

            List<string> data = new List<string>();

            StreamReader streamReader = new StreamReader(filename);

            while (!streamReader.EndOfStream)

            {

                string entry = streamReader.ReadLine();

                if (entry.Contains(date))

                {

                    while (!entry.Contains('_'))

                    {

                        string[] temp = entry.Split('|');

                        data.Add(temp[1].Trim());

                        entry = streamReader.ReadLine();

                    }

                    break;

                }

            }

            streamReader.Close();

            return data;

        }

​

        public double Calculate(string date)

        {

            List<string> data = GetData(date);

            double total = 0;

            for (int i = 0; i < data.Count; i++)

            {

                string[] temp = data[i].Split('-');

                DateTime start = DateTime.Parse(temp[0]);

                DateTime end = DateTime.Parse(temp[1]);

                TimeSpan duration = end.Subtract(start);

                total += (duration.TotalMinutes / 60);

            }

            return total;

        }

​

        static void Main(string[] args)

        {

            Calculator calculator = new Calculator();

            bool finish = false;

            while (!finish)

            {

                Console.WriteLine("Clocking in?");

                if (Console.ReadLine() == "yes")

                {

                    string inTime = calculator.ClockIn();

                    Console.WriteLine("Enter 'out' to clock out");

                    if (Console.ReadLine() == "out")

                    {

                        string outTime = calculator.ClockOut();

                        Console.WriteLine("Enter today's date: ");

                        string date = Console.ReadLine();

                        finish = calculator.WriteData(date, inTime, outTime);

                    }

                }

            }

            Console.WriteLine("Enter a date to find daily hours: ");

            string date1 = Console.ReadLine();

            double result = calculator.Calculate(date1);

            Console.WriteLine(Math.Round(result, 2));

        }

    }

}

/*______|_______________________

09/03 | 11:35 AM - 11:44 AM 

      | 01:28 PM - 01:34 PM 

      | 04:08 PM - 05:22 PM 

      | 05:29 PM - 06:06 PM 

______|_______________________

09/04 | 04:28 PM - 06:28 PM 

______|_______________________

09/05 | 11:54 AM - 11:59 AM 

      | 12:04 PM - 12:18 PM 

      | 12:21 PM - 12:27 PM 

      | 12:28 PM - 03:52 PM 

      | 04:59 PM - 06:01 PM 

      | 06:34 PM - 08:05 PM 

      | 10:30 PM - 11:30 PM 

______|_______________________*/

​