/// <summary>
/// This method runs the looped user interaction process that the user chooses what to sort and search for.
/// </summary>
/// <param name="media">The list of media objects pulled from the datafile</param>
private static void Run(List <Media> media)
{
int userInput = 0; // initialize the user input variable to zero
int counter = 0; // initialize the counter to zero used trigger the display initializer when app starts
bool running = true; // boolean flag for the main program running loop
// the main app running loop
while (running)
{
// Initializer
if (counter == 0)
{
displayTitle(); // displays the main title
displayChoices(); // displays the users options
}
// Loop the user input until a number is entered
while (!int.TryParse(Console.ReadLine(), out userInput))
{
displayTitle(); // displays the main title
displayChoices(); // displays the users options
}
if (userInput == 6) // end main loop if user inputs 6
{
running = false; // trigger the boolean flag to exit the main program loop
}
else
{
displayTitle(); // displays the main title
// switch class that displays different media types or the search field depending on user input
switch (userInput)
{
// info is displayed for all books in the file
case 1:
sortTitle("Book Search"); // executes the sort title method
// runs through the media list and displays any book data without summary in the file
foreach (Media item in media)
{
if (item is Book) // if the item is a book display the book info w/o summary
{
itemSearch(item); // call the itemsearch method and pass item as argument
}
}
break; // break out of the switch case
// info is displayed for all movies in the file
case 2:
sortTitle("Movie Search"); // executes the sort title method
// runs through the media list and displays any movie data without summary in the file
foreach (Media item in media)
{
if (item is Movie) // if the item is a movie display the movie info w/o summary
{
itemSearch(item); // call the itemsearch method and pass item as argument
}
}
break; // break out of the switch case
// info is displayed for all songs in the file
case 3:
sortTitle("Song Search"); // executes the sort title method
// runs through the media list and displays any song data in the file
foreach (Media item in media)
{
if (item is Song) // if the item is a song display the song info
{
itemSearch(item); // call the itemsearch method and pass item as argument
}
}
break; // break out of the switch case
// info is displayed for all media types in the file
case 4:
sortTitle("Media Search"); // executes the sort title method
foreach (Media item in media) // loop all items in the Media List
{
if (item != null) // tue if the item is not empty
{
if (item is Book) // if the item is a book display the book info w/o summary
{
itemSearch(item); // call the itemsearch method and pass item as argument
}
if (item is Movie) // if the item is a movie display the movie info w/o summary
{
itemSearch(item); // call the itemsearch method and pass item as argument
}
if (item is Song) // if the item is a song display the song info
{
itemSearch(item); // call the itemsearch method and pass item as argument
}
}
}
break; // break out of the switch case
// info is displayed for all items that have the user inputed string in the title
case 5:
sortTitle("Search all media by title"); // executes the sort title method
foreach (Media item in media) // loop all items in the Media List
{
// prompt user
Console.WriteLine("Please enter a search term:\n ");
string query = Console.ReadLine(); // store user input
Console.WriteLine(""); // create extra space
if (query == "0" || query == "") // true if user input is not empty or 0
{
break; // break out of the switch case
}
foreach (Media m in media) // loop all items in the Media List
{
if (m.Search(query)) // true if the query is in the title of an item in the Media List
{
Console.ForegroundColor = ConsoleColor.Green; // make console text green
Console.WriteLine(m); // display the item info not including summary for movie/book
Console.ForegroundColor = ConsoleColor.White; // make console text white
if (m is Book) // if item is book displays the decrypted summary of the book
{
Book temp = m as Book;
Console.WriteLine("");
Console.WriteLine(temp.Decrypt());
Console.WriteLine("--------------------");
}
if (m is Movie) // if item is movie displays the decrypted summary of the movie
{
Movie temp = m as Movie;
Console.WriteLine("");
Console.WriteLine(temp.Decrypt());
Console.WriteLine("--------------------");
}
}
}
break;
}
break;
}
displayChoices(); // displays the users options
// change output to remind user 1 - 6 are only valid numbers
if (userInput != 1 && userInput != 2 && userInput != 3 && userInput != 4 && userInput != 5)
{
Console.Write("Please Enter a number from 1 - 6: ");
}
else
{
Console.Write("Enter choice:");
}
counter++; // increase the counter used to initialize the first output
}
}
}
/// <summary>
/// this method is about Choosing options in the menu
/// </summary>
/// <param name="mediaArray">array of Media</param>
/// <returns>true</returns>
private static bool Choice(Media[] mediaArray)
{
//create Books list
List <Book> Books = new List <Book>();
//create Movies list
List <Movie> Movies = new List <Movie>();
//create Songs list
List <Song> Songs = new List <Song>();
//store the object data in the assigned list according to the type of object
foreach (Media element in mediaArray)
{
if (element is Book)
{
Books.Add((Book)element);
}
else if (element is Movie)
{
Movies.Add((Movie)element);
}
else if (element is Song)
{
Songs.Add((Song)element);
}
}
//diplay the menu option
DisplayMenu();
while (true)
{
//get the input from the user
string input = Console.ReadLine();
Console.WriteLine();
//show the error if the user's input is wrong
if ((int.TryParse(input, out int userSelection) == false) ||
userSelection < 1 || userSelection > 6)
{
Console.WriteLine("\n*** Invalid Choice - Try Again ***\n");
Console.WriteLine("\nPress any key to continue . . .");
input = Console.ReadLine();
Console.Clear();
DisplayMenu();
continue;
}
//display the output according to the user's input
if (userSelection == 1)
{
//foreach statement of the Books list
foreach (Book element in Books)
{
//display the information
Console.WriteLine(element.ToString());
Console.WriteLine("-----------------------");
}
}
else if (userSelection == 2)
{
foreach (Movie element in Movies)
{
Console.WriteLine(element.ToString());
Console.WriteLine("-----------------------");
}
}
else if (userSelection == 3)
{
foreach (Song element in Songs)
{
Console.WriteLine(element.ToString());
Console.WriteLine("-----------------------");
}
}
else if (userSelection == 4)
{
foreach (Media element in mediaArray)
{
Console.WriteLine(element.ToString());
Console.WriteLine("-----------------------");
}
}
else if (userSelection == 5)
{
Console.Write("\nEnter a search string: ");
//get the keyword from the user
string keyword = Console.ReadLine();
Console.WriteLine();
//foreach statement of the mediaArray array
int keywordResultCount = 0;
foreach (Media element in mediaArray)
{
//check the keyword is found or not
if (element.Search(keyword))
{
//check the keyword is Book object
if (Books.Contains(element))
{
Book book = (Book)element;
Console.WriteLine(element.ToString());
//decrpt the Summary and display on the screen
Console.WriteLine("Summary: " + book.Decrypt());
Console.WriteLine("-----------------------");
book.Encrypt();
keywordResultCount++;
}
//check the keyword is Movies object
else if (Movies.Contains(element))
{
Movie movie = (Movie)element;
Console.WriteLine(element.ToString());
//decrpt the Summary and display on the screen
Console.WriteLine("Summary: " + movie.Decrypt());
Console.WriteLine("-----------------------");
movie.Encrypt();
keywordResultCount++;
}
//keyword is Song object
else
{
Console.WriteLine(element.ToString());
Console.WriteLine("-----------------------");
keywordResultCount++;
}
}
else
{
if (keywordResultCount > 0)
{
Console.WriteLine(keywordResultCount + " results are found");
}
else
{
Console.WriteLine("No search result");
}
break;
}
if (keywordResultCount == mediaArray.Length)
{
Console.WriteLine(keywordResultCount + " results are found");
}
}
}
else
{
// if userSelection is 6, then exit
break;
}
Console.WriteLine("\nPress any key to continue . . .");
string continueInput = Console.ReadLine();
if (continueInput != null)
{
//clear the screen and show the display menu
Console.Clear();
DisplayMenu();
}
}
return(true);
}