using System.Collections.Generic;
using ContosoUniversity.Models;

namespace ContosoUniversity.DAL.Migrations
{
    using System;
    using System.Data.Entity;
    using System.Data.Entity.Migrations;
    using System.Linq;

    internal sealed class Configuration : DbMigrationsConfiguration<ContosoUniversity.DAL.SchoolContext>
    {
        public Configuration()
        {
            AutomaticMigrationsEnabled = false;
        }

        protected override void Seed(ContosoUniversity.DAL.SchoolContext context)
        {
            //  This method will be called after migrating to the latest version.

            //  You can use the DbSet<T>.AddOrUpdate() helper extension method 
            //  to avoid creating duplicate seed data. E.g.
            //
            //    context.People.AddOrUpdate(
            //      p => p.FullName,
            //      new Person { FullName = "Andrew Peters" },
            //      new Person { FullName = "Brice Lambson" },
            //      new Person { FullName = "Rowan Miller" }
            //    );
            //
            var instructors = new List<Instructor>
            {
                new Instructor
                {
                    FirstMidName = "Kim", LastName = "Abercrombie", HireDate = DateTime.Parse("1995-03-11"),
                    OfficeAssignment = new OfficeAssignment {Location = "Smith 17"}
                },
                new Instructor
                {
                    FirstMidName = "Fadi", LastName = "Fakhouri", HireDate = DateTime.Parse("2002-07-06"),
                    OfficeAssignment = new OfficeAssignment {Location = "Gowan 27"}
                },
                new Instructor
                {
                    FirstMidName = "Roger", LastName = "Harui", HireDate = DateTime.Parse("1998-07-01"),
                    OfficeAssignment = new OfficeAssignment {Location = "Thompson 304"}
                },
                new Instructor {FirstMidName = "Candace", LastName = "Kapoor", HireDate = DateTime.Parse("2001-01-15")},
                new Instructor {FirstMidName = "Roger", LastName = "Zheng", HireDate = DateTime.Parse("2004-02-12")}
            };

            instructors.ForEach(s => context.Instructors.AddOrUpdate(i => i.LastName, s));
            context.SaveChanges();

            var departments = new List<Department>
            {
                new Department
                    {Name = "English", Budget = 350000, StartDate = DateTime.Parse("2007-09-01"), DepartmentID = 1},
                new Department
                    {Name = "Mathematics", Budget = 100000, StartDate = DateTime.Parse("2007-09-01"), DepartmentID = 2},
                new Department
                    {Name = "Engineering", Budget = 350000, StartDate = DateTime.Parse("2007-09-01"), DepartmentID = 3},
                new Department
                    {Name = "Economics", Budget = 100000, StartDate = DateTime.Parse("2007-09-01"), DepartmentID = 4}
            };

            departments.ForEach(s=>context.Departments.AddOrUpdate(d=>d.Name, s));
            context.SaveChanges();

            var courses = new List<Course>
            {
                new Course {CourseID = 1050, Title = "Chemistry", Credits = 3, DepartmentID = 3},
                new Course {CourseID = 4022, Title = "Microeconomics", Credits = 3, DepartmentID = 4},
                new Course {CourseID = 4041, Title = "Macroeconomics", Credits = 3, DepartmentID = 4},
                new Course {CourseID = 1045, Title = "Calculus", Credits = 4, DepartmentID = 2},
                new Course {CourseID = 3141, Title = "Trigonometry", Credits = 4, DepartmentID = 2},
                new Course {CourseID = 2021, Title = "Composition", Credits = 3, DepartmentID = 1},
                new Course {CourseID = 2042, Title = "Literature", Credits = 4, DepartmentID = 1}
            };

            courses.ForEach(s=>context.Courses.AddOrUpdate(s));
            context.SaveChanges();

            courses[0].Instructors.Add(instructors[0]);
            courses[0].Instructors.Add(instructors[1]);
            courses[1].Instructors.Add(instructors[2]);
            courses[2].Instructors.Add(instructors[2]);
            courses[3].Instructors.Add(instructors[3]);
            courses[4].Instructors.Add(instructors[3]);
            courses[5].Instructors.Add(instructors[3]);
            courses[6].Instructors.Add(instructors[3]);
            context.SaveChanges();
        }
    }
}