import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.util.Scanner;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class taskBckg {
	
	
	
	// Returns true if file exists
		public static boolean checkForFile() throws IOException {
			File f = new File("tasks.txt");
			if (!f.exists()) {
				// Create the file
				createTasksFile();
			} else {
				return true;
			}
			return false;
		}
		
		public void openWebpage(String address) {
			try
			{
			Process p=Runtime.getRuntime().exec("cmd /c start "+ address);
			}
			catch(IOException e1) { 
				System.out.println(e1);
				}
		}
		
		
		
		
		
		
		
		
		
		
		// Returns true if errors still exist
		@SuppressWarnings("null")
		public static String[] runDiagnostics() throws IOException {
			
			gui gui1 = new gui();
			gui1.setCurStatus("Now running diagnostics... Please wait!");
			
			int i = 0;
			int errorsI = 0;
			File f = new File("tasks.txt");
			String[] errors = { "", "", "", "", "" };

			// try to create the file three times
			do {
				f.createNewFile();
				i++;
			} while (!f.exists() && i < 3);

			// if the file creating was still unsuccessful, give out an error
			if (!f.exists()) {
				errors[errorsI] = "Error creating the file!";
				errorsI++;
			}
			if (!f.canRead()) {
				errors[errorsI] = "Error reading the file!";
				errorsI++;
			}
			if (!f.canWrite()) {
				errors[errorsI] = "Error writing to the file!";
				errorsI++;
			}
			return errors;
		}
	}