public void removeMovie(MovieCollection myMovieCollection, MemberCollection myMemberCollection)
{
string input = "";
string removeMovieMenu = "===========REMOVE MOVIE=============\n";
Console.WriteLine(removeMovieMenu);
while (true)
{
Console.Write("Movie Title: ");
input = Console.ReadLine();
//Checks to see if we have that movie. If the find function returns null, that movie doesn't exist
if (myMovieCollection.Find(input) == null)
{
Console.WriteLine("The movie '{0}' currently doesn't exist in the library.", input);
break;
}
int numCopies = myMovieCollection.Find(input).NumberOfCopiesThatExist;
//If there's only 1 instance, DVD, of the movie we instantly remove it
if (numCopies == 1)
{
myMovieCollection.Remove(input);
Console.WriteLine("The movie '{0}' was successfully removed.", input);
break;
}
//We get to this point if there's more than 1 DVD for that same movie. While loop is used to keep prompting
//The user with the same Console.Write message if they enter an invalid input
while (true)
{
//If there's more than 1 DVD, we have to ask how many copies they'd like to remove
Console.Write("There's currently {0} DVD copies for '{1}.' How many would you like to remove? ", numCopies, input);
//See if the user input is an int
string temp = Console.ReadLine();
if (Int32.TryParse(temp, out int wantedAmount))
{
//See if the num DVD copies of that movie- the amount the user wants to remove is possible
if ((numCopies - wantedAmount) < 0)
{
Console.WriteLine("Error: You can't remove more copies of a movie than there exists.");
}
//If there's no copies of the movie left, we remove it
else if ((numCopies - wantedAmount) == 0)
{
myMovieCollection.Remove(input);
Console.WriteLine("The movie '{0}' was successfully removed.", input);
break;
}
//Else we have existing copies left so we update the movie in the tree
else
{
myMovieCollection.Find(input).NumberOfCopiesThatExist -= wantedAmount;
Console.WriteLine("Successfully removed {0} DVD copies for '{1}.' The updated amount of copies that exist is now {2}.", wantedAmount, input, myMovieCollection.Find(input).NumberOfCopiesThatExist);
break;
}
}
//We get to this point if the user input was unable to be parsed to an int
else
{
Console.WriteLine("Error: {0} is not a valid number.", temp);
}
}
break;
}
}
public Movie addMovie(MovieCollection myBinaryTree)
{
string input = "";
string movieTitle = "";
List <string> movieStarring = new List <string>();
string movieDirector = "";
string movieDuration = "";
string movieGenre = "";
string movieClassification = "";
string movieReleaseDate = "";
bool addStar = true;
bool addGenre = true;
bool addClassification = true;
int numCopies;
Movie myMovie;
Console.Write("Title: ");
input = Console.ReadLine();
//Check if that movie already exists
if (myBinaryTree.Find(input) != null)
{
Console.WriteLine("Error: A movie with that title already exists");
while (true)
{
//Since the movie already exists, ask the user if they'd like to update the number of DVD copies
Console.Write("Would you like to change the number of DVDs? (y or n): ");
string input2 = Console.ReadLine();
//The user wants to change the number of copies
if (input2 == "y")
{
while (true)
{
Console.Write("Copies: ");
if (Int32.TryParse(Console.ReadLine(), out int numTemp))
{
//If the number they entered is 0, we want to remove the movie
if (numTemp == 0)
{
myBinaryTree.Remove(input);
Console.WriteLine("Successfully removed the movie");
//Exit the function
return(null);
}
//The user entered a negative number
else if (numTemp < 0)
{
Console.WriteLine("Error: you cannot enter a negative number.");
//Go back to the start of the while loop
continue;
}
int oldNumCopies = myBinaryTree.Find(input).NumberOfCopiesThatExist;
myBinaryTree.Find(input).NumberOfCopiesThatExist = numTemp;
Console.WriteLine("Successfully changed the num of copies for {0} from {1} to {2}.", input, oldNumCopies, myBinaryTree.Find(input).NumberOfCopiesThatExist);
return(null);
}
Console.WriteLine("Error: That's not a valid integer.");
}
}
else if (input2 == "n")
{
return(null);
}
else
{
Console.WriteLine("Error: {0} is not a valid option", input2);
}
}
}
//We have a movie that doesn't exist
else if (myBinaryTree.Find(input) == null)
{
movieTitle = input;
}
while (addStar == true)
{
Console.Write("Star: ");
movieStarring.Add(Console.ReadLine());
while (true)
{
Console.Write("Add another star? (y or n): ");
input = Console.ReadLine();
if (input == "y")
{
break;
}
else if (input == "n")
{
addStar = false;
break;
}
else
{
Console.WriteLine("Error: Invalid Input.");
}
}
}
Console.Write("Director: ");
movieDirector = Console.ReadLine();
while (addGenre == true)
{
Console.WriteLine("Select the genre: ");
Console.WriteLine("1. Drama\n2. Adventure\n3. Family\n4. Action\n5. Sci-Fi\n6. Comedy\n7. Animated\n8. Thriller\n9. Other");
Console.Write("Make selection (1-9): ");
if (Int32.TryParse(Console.ReadLine(), out int genreSelection) && genreSelection >= 1 && genreSelection <= 9)
{
switch (genreSelection)
{
case 1:
movieGenre = "Drama";
break;
case 2:
movieGenre = "Adventure";
break;
case 3:
movieGenre = "Family";
break;
case 4:
movieGenre = "Action";
break;
case 5:
movieGenre = "Sci-Fi";
break;
case 6:
movieGenre = "Comedy";
break;
case 7:
movieGenre = "Animated";
break;
case 8:
movieGenre = "Thriller";
break;
case 9:
movieGenre = "Other";
break;
}
addGenre = false;
break;
}
else
{
Console.WriteLine("Error: Invalid Genre.");
}
}
while (addClassification == true)
{
Console.WriteLine("Select the classification:");
Console.WriteLine("1. General (G)\n2. Parental Guidance (PG)\n3. Mature (M15+)\n4. Mature Accompanied (MA15+)");
Console.Write("Make selection (1-4): ");
if (Int32.TryParse(Console.ReadLine(), out int classificationSelection) && classificationSelection >= 1 && classificationSelection <= 4)
{
switch (classificationSelection)
{
case 1:
movieClassification = "G";
break;
case 2:
movieClassification = "PG";
break;
case 3:
movieClassification = "M15+";
break;
case 4:
movieClassification = "MA15+";
break;
}
addClassification = false;
break;
}
else
{
Console.WriteLine("Error: Invalid Classification.");
}
}
Console.Write("Duration (minutes): ");
movieDuration = Console.ReadLine();
Console.Write("Release Date (year): ");
movieReleaseDate = Console.ReadLine();
while (true)
{
Console.Write("Enter the number of copies available: ");
if (Int32.TryParse(Console.ReadLine(), out numCopies))
{
break;
}
Console.WriteLine("Error: Invalid number");
}
//Convert the list to an array
string[] myArray = movieStarring.ToArray();
myMovie = new Movie(movieTitle, myArray, movieDirector, movieDuration, movieGenre, movieClassification, movieReleaseDate, numCopies);
return(myMovie);
}