using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;
using System.Data.Entity;
using System.Diagnostics.Contracts;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using MovieDB.Migrations;

namespace MovieDB
{
    public class Movie
    {
        public int Id { get; set; }
        [Required]
        public string Name { get; set; }
        [Required]
        public int Year { get; set; }
        public List<string> Zanrs { get; set; }
        public virtual List<ActorRole> Actors { get; set; }

        public Movie()
        {
            this.Zanrs = new List<string>();
            this.Actors = new List<ActorRole>();
        }
    }

    public class ActorRole
    {
        public int Id { get; set; }
        [Required]
        public string Role { get; set; }
        [Required]
        public Actor Actor { get; set; }
    }

    public class Actor
    {
        public int Id { get; set; }
        [Required]
        public string FirstName { get; set; }
        [Required]
        public string LastName { get; set; }
        [Required]
        public bool Active { get; set; }
        [Required]
        public int BirthYear { get; set; }
        public virtual List<Movie> Movies { get; set; }

        public Actor ()
        {
            this.Active = true;
            this.Movies = new List<Movie>();
        }
    }

    public class MovieDBContext : DbContext
    {
        public DbSet<Movie> Movies { get; set; }
        public DbSet<ActorRole> ActorRoles { get; set; }
        public DbSet<Actor> Actors { get; set; }

        public MovieDBContext() : base("name=MovieDBBase")
        {
            Database.SetInitializer(
                new MigrateDatabaseToLatestVersion<MovieDBContext, Configuration>());
        }
    }


    class Program
    {
        static void Main(string[] args)
        {
            using (MovieDBContext db = new MovieDBContext())
            {
                bool running = true;
                while (running)
                {
                    Console.Write("> ");
                    string[] input = Console.ReadLine().Split(' ');
                    switch (input[0])
                    {
                        case "exit":
                            running = false;
                            break;
                        case "listmovies":
                            foreach (var movie in db.Movies)
                            {
                                Console.WriteLine($"{movie.Id}: {movie.Name} ({movie.Year})");
                            }
                            Console.WriteLine($"Movie count: {db.Movies.Count()}");
                            break;
                        case "addmovie":
                            var m = new Movie();
                            m.Name = input[1];
                            m.Year = int.Parse(input[2]);
                            db.Movies.Add(m);
                            db.SaveChanges();
                            break;

                        case "addactor":
                            var a = new Actor();
                            a.FirstName = input[1];
                            a.LastName = input[2];
                            a.BirthYear = int.Parse(input[3]);
                            db.Actors.Add(a);
                            db.SaveChanges();
                            break;
                        case "listactors":
                            foreach (var actor in db.Actors)
                            {
                                Console.WriteLine($"{actor.Id}: {actor.FirstName} {actor.LastName} ({actor.BirthYear}), movie count: {actor.Movies.Count()}");
                            }
                            Console.WriteLine($"Actor count: {db.Actors.Count()}");
                            break;

                        case "addactormovie":
                            var ar = new ActorRole();
                            var am = db.Movies.Find(int.Parse(input[1]));
                            am.Actors.Add(ar);
                            ar.Actor = db.Actors.Find(int.Parse(input[2]));
                            ar.Role = input[3];
                            break;

                        case "listactormovie":
                            var mov = db.Movies.Find(int.Parse(input[1]));
                            foreach (var actor in mov.Actors)
                            {
                                Console.WriteLine($"{actor.Id}: {actor.Actor.FirstName} {actor.Actor.LastName} ({actor.Actor.BirthYear}) {actor.Role}");
                            }
                            Console.WriteLine($"Number of actors for movie {mov.Name}: {mov.Actors.Count}");
                            break;
                        case "help":
                            Console.WriteLine("listmovies: Lists all movies\naddmovie <name> <year>: Adds a movie\nlistactors: List all actors\naddactor <FirstName> <LastName> <BirthYear>: Add a new actor\nlistactormovie <MovieId>: List actors for a movie\naddactormovie <MovieId> <ActorId> <Role>: Add a actor to a movie with a role");
                            break;
                        default:
                            Console.WriteLine("No such command. Try help.");
                            break;
                    }
                }
            }
        }
    }
}