MainProgram

using System;
using System.Collections.Generic;
using System.Linq;


namespace DelegatesAndEvents
{

    //public delegate void WorkPerformedHandler(int hours, WorkType workType);
    //public delegate int WorkPerformedHandlerI(int hours, WorkType workType);
    public delegate int BizRulesDelegate(int x, int y);

    class Program
    {
        static void Main(string[] args)
        {
            #region Code Examples from Training
            // WorkPerformedHandler del1 = new WorkPerformedHandler(WorkPerformed1);
            // WorkPerformedHandler del2 = new WorkPerformedHandler(WorkPerformed2);
            // WorkPerformedHandler del3 = new WorkPerformedHandler(WorkPerformed3);

            // WorkPerformedHandlerI deli1 = new WorkPerformedHandlerI(WorkPerformed1i);
            // WorkPerformedHandlerI deli2 = new WorkPerformedHandlerI(WorkPerformed2i);
            // WorkPerformedHandlerI deli3 = new WorkPerformedHandlerI(WorkPerformed3i);


            // del1(5, WorkType.Golf);
            // del2(10, WorkType.GenerateReports);

            // This does the same thing as the delegates defined above
            // DoWork(del1);

            // Overwrites what is in del1 with the data given to del2 and del3
            // del1 = del2 + del3;

            // Adds in the data from del2 and del3 ontop of del1 data
            // del1 += del2 + del3;

            // del1(10, WorkType.Golf);

            // deli1 += deli2 + deli3;

            // int finalHours = deli1(10, WorkType.Golf);
            // Console.WriteLine(finalHours);
            // BizRulesDelegate addDel = (x, y) => x + y;
            BizRulesDelegate multiplyDel = (x, y) => x * y;


            #endregion

            var custs = new List<Customer>
            {
                new Customer {City = "Phoenix", FirstName = "John", LastName = "Smith", ID = 0 },
                new Customer {City = "Phoenix", FirstName = "Jane", LastName = "Doe", ID = 1},
                new Customer {City = "Seattle", FirstName = "Suki", LastName = "Suki", ID = 2},
                new Customer {City = "New York City", FirstName = "Michelle", LastName = "Yakson", ID = 3},
            };

            var phxCusts = custs
                .Where(c => c.City == "Phoenix" && c.ID > 0)
                .OrderBy(c => c.FirstName);

            foreach (var cust in phxCusts)
            {
                Console.WriteLine(cust.FirstName);
            }

            var data = new ProcessData();
            Func<int, int, int> funcAddDel = (x, y) => x + y;
            Func<int, int, int> funcMultipleDel = (x, y) => x * y;
            data.Process(2, 3, multiplyDel);

            Action<int, int> myAction = (x, y) => Console.WriteLine(x + y);
            Action<int, int> myMultiplyAction = (x, y) => Console.WriteLine(x * y);

            data.ProcessFunc(3, 2, funcAddDel);
            data.ProcessFunc(3, 2, funcMultipleDel);

            //var worker = new Worker();
            //worker.WorkPerformed += (s, e) => Console.WriteLine($"Worked: {e.Hours} hours(s) doing: {e.WorkType}");
            //worker.WorkCompleted += (s, e) => Console.WriteLine($"Worker is done!");
            //worker.DoWork(8, WorkType.GenerateReports);

            Console.Read();
        }

        //static void Worker_WorkPerformed(object sender, WorkPerformedEventArgs e)
        //{
        //    Console.WriteLine($"{e.Hours} hour worked on: {e.WorkType}");
        //}

        //static void Worker_WorkCompleted(object sender, EventArgs e)
        //{
        //    Console.WriteLine($"Worker is done!");
        //}


        //static void DoWork(WorkPerformedHandler del)
        //{
        //    del(5, WorkType.GoingToMeetings);
        //}

        //static void WorkPerformed1(int hours, WorkType workType)
        //{
        //    Console.WriteLine($"Workperform1 called!\n{hours} hours\n{workType}");
        //}

        //static int WorkPerformed1i(int hours, WorkType workType)
        //{
        //    Console.WriteLine($"Workperform1 called!\n{hours} hours\n{workType}");
        //    return hours + 1;
        //}

        //static void WorkPerformed2(int hours, WorkType workType)
        //{
        //    Console.WriteLine($"Workperform2 called!\n{hours} hours\n{workType}");
        //}

        //static int WorkPerformed2i(int hours, WorkType workType)
        //{
        //    Console.WriteLine($"Workperform1 called!\n{hours} hours\n{workType}");
        //    return hours + 2;
        //}

        //static void WorkPerformed3(int hours, WorkType workType)
        //{
        //    Console.WriteLine($"Workperform3 called!\n{hours} hours\n{workType}");
        //}

        //static int WorkPerformed3i(int hours, WorkType workType)
        //{
        //    Console.WriteLine($"Workperform1 called!\n{hours} hours\n{workType}");
        //    return hours + 3;
        //}
    }

    public enum WorkType
    {
        Golf,
        GoingToMeetings,
        GenerateReports
    }
}