private static Media[] ReadData(int choice)
{
List <Media> result = new List <Media>(); // The final result that will be returned
// Validate if there is a valid textfile in the specific directory and checks if the content of the file is valid
try
{
// Initialize variables
string file = @"Data.txt"; // The path and name of the file string line;
// the current line of the stream
StreamReader reader = new StreamReader(file); // Used for reading the file
// Reads file until the end of the stream
while (!reader.EndOfStream)
{
// Initialize variables that will be used for reading data, and will reset every time a new line is read
List <string> summary = new List <string>();
string line = reader.ReadLine();
string[] splitLine = line.Split('|');
// Makes sure the data being read is actually data, not a separator
if (!line.Equals("-----"))
{
// Check the type of media, and if it is the selected option by the user, then add it to the list of media that will be displayed
if (splitLine[0].ToUpper() == "BOOK" && (choice == 4 || choice == 1))
{
// Reads multiple lines of summary, until the next separator
while (!(line = reader.ReadLine()).Equals("-----"))
{
summary.Add(line);
}
result.Add(new Book(splitLine[3], Convert.ToInt32(splitLine[2]), splitLine[1], String.Join(' ', summary)));
foreach (var Book in result)
{
Console.WriteLine(Book.ToString());
}
}
else if (splitLine[0].ToUpper() == "SONG" && (choice == 4 || choice == 3))
{
// Reads multiple lines of summary, until the next separator
while (!(line = reader.ReadLine()).Equals("-----"))
{
summary.Add(line);
}
result.Add(new Song(splitLine[3], Convert.ToInt32(splitLine[2]), splitLine[1], String.Join(' ', summary)));
foreach (var Song in result)
{
Console.WriteLine(Song.ToString());
}
}
else if (splitLine[0].ToUpper() == "MOVIE" && (choice == 4 || choice == 2))
{
// Reads multiple lines of summary, until the next separator
while (!(line = reader.ReadLine()).Equals("-----"))
{
summary.Add(line);
}
result.Add(new Movie(splitLine[3], Convert.ToInt32(splitLine[2]), splitLine[1], String.Join(' ', summary)));
foreach (var Movie in result)
{
Console.WriteLine(Movie.ToString());
}
}
else if (choice == 6)
{
}
}
}
// Make the search case insensitive by treating strings as lowercase
// Didn't find it
}
catch (Exception ex)
{
}
return(result.ToArray());
}
/// <summary>
/// This method is for create the specific media object
/// </summary>
/// <param name="info">List of string</param>
///
private static Media CreateMedia(List <string> info)
{
//neMedia for the return value
Media newMedia;
//values string array for the splitting the value based on '|'
string[] values = info[0].Split('|');
//category string to store the value of index 0 of array
string category = values[0];
//check the category
if (category == "BOOK" || category == "MOVIE")
{
//title string to store the value of index 1 of array
string title = values[1];
//year string to store the value of index 2 of array
string year = values[2];
//arthor string to store the value of index 3 of array
string arthor = values[3];
//yearInt for the Parsing the string year
int yearInt = short.Parse(year);
//summary string for the storing the remaining data
string summary = "";
for (int i = 1; i < info.Count; i++)
{
summary += info[i] + Environment.NewLine;
}
if (category == "BOOK")
{
//create the Book object and return
newMedia = new Book(title, yearInt, arthor, summary);
return(newMedia);
}
else
{
//create the Movie object and return
newMedia = new Movie(title, yearInt, arthor, summary);
return(newMedia);
}
}
else if (category == "SONG")
{
//title string to store the value of index 1 of array
string title = values[1];
//year string to store the value of index 2 of array
string year = values[2];
//album string to store the value of index 3 of array
string album = values[3];
//director string to store the value of index 3 of array
string director = values[4];
//yearInt for the Parsing the string year
int yearInt = short.Parse(year);
//create the Song object and return
newMedia = new Song(title, yearInt, album, director);
return(newMedia);
}
return(null);
}
