package artpricingsystem; import java.io.*; import java.util.Date; import java.util.Scanner;

class Artist {

private String artistFirstName; private String artistLastName ; private int fashionabilityValue;

//Desc: constructor for Artist
//Post: allows class to set the value of the artistFirstName, artistLastName,
//		and fashionabilityValue field into this object
Artist(String f, String l, int v)
{
    artistFirstName=f;
    artistLastName=l;
    fashionabilityValue=v;
}

//Desc: no arg constructor for Artist
//Post: instentiates a blank Artist object
Artist() 
{
    artistFirstName="";
    artistLastName="";
    fashionabilityValue=0;
}

//Desc: allows class to access the artistFirstName field in a record
//Return: artistFirstName
public String getArtistFirstName()
{
    return artistFirstName;
}

//Desc:allows class to set  value of the artistFirstName field in a record
//Post: artistFirstName is set to f
public void setArtistFirstName(String f)
{
    artistFirstName=f;
}

//Desc: allows class to access the artistLastName field in a record
//Return: artistLastName	
public String getArtistLastName()
{
    return artistLastName;
}

//Desc:allows class to set the value of the artistLastName field in a record
//Post: dateOfPurchase is set to l
public void setArtistLastName(String l)
{
    artistLastName=l;
} 

//Desc: allows class to access the fashionabilityValue field in a record
//Return: fashionabilityValue	
public int getArtistFashionabilityValue()
{
    return fashionabilityValue;
}

//Desc:allows class to set  value of fashionabilityValue field in a record
//Post: dateOfPurchase is set to v
public void setArtistFashionabilityValue(int v) 
{
    fashionabilityValue=v;
}

//Desc: updates an artist's first name in a record from user's input
//Post: artistsFirstName field is updated 
public void updateArtistsFirstName()
{
    System.out.println("Old Artist First Name:" + artistFirstName);
    System.out.println("Please enter new Artist First Name and press <ENTER>: ");
    artistFirstName=UserInterface.getString();
    while(artistFirstName.length()>30) 
    {
        System.out.println("Artist First Name exceeds 30 characters. Please enter shortened name:");
        artistFirstName=UserInterface.getString();
    }      
}

//Desc: updates an artist's last name in a record from user's input
//Post: artistLastName field is updated
public void updateArtistLastName()
{
    System.out.println("Old Artist Last Name:" + artistLastName);
    System.out.println("Please enter new Artist Last Name and press <ENTER>: ");
    artistLastName=UserInterface.getString();
    while(artistLastName.length()>30) 
    {
        System.out.println("Artist Last Name exceeds 30 characters. Please enter shortened name:");
        artistLastName=UserInterface.getString();
    }      
}	

//Desc: updates an artist's fashionability value in a record from user's input
//Post: fashionabilityValue field is updated
public void updateFashionabilityValue()
{
    try 
    {
        System.out.println("Old Fashionability Value:" + fashionabilityValue);
        System.out.println("Please enter new Fashionability Value and press <ENTER>: ");
        if (fashionabilityValue>=0 && fashionabilityValue>10000)
        {
            System.out.println("Value out of range.  Please select integer value between 0 and 10,000: ");
            fashionabilityValue=UserInterface.getInt();
        }
    
        fashionabilityValue=UserInterface.getInt();
    }
    catch (NumberFormatException e)
    {
       System.out.println("Value entered is not an integer Value. Please select"
               + " an integer value between 0 and 10,000: "); 
       fashionabilityValue=Integer.parseInt(UserInterface.getString());
       return;
    }
}	

//Desc:uses the last and first name of an artist to find a record in the file
//Return: returns true if record is found or false if record is not found
public boolean find(String afirstname, String alastname)
{
    try
    {
        File artistFile = new File ("artist.dat");
        boolean found = false;
        if (artistFile.exists())
        {
            RandomAccessFile inFile = new RandomAccessFile (artistFile, "r");
            
            
            while (!found && (inFile.getFilePointer()!=inFile.length()))
            {
                read (inFile);
                if (artistLastName.equalsIgnoreCase(alastname) && 
                artistFirstName.equalsIgnoreCase(afirstname))
                    found = true;       
            }
            inFile.close();
        }
        return found;
    }
    catch (Exception e)
    {
        System.out.println ("***** Error: Artist.find () *****");
        System.out.println ("\t" + e);
        return false;
    }
}

//Desc: reads a single artist record into an object from the fileName
//Pre: RandomAccessFile must exist 
//Post: artistLastName, artistFirstName and fashionabilityValue are read into this object
public void read(RandomAccessFile fileName)
{
    try
    {
        String  inputString = new String ();	
        int	i = 0;		                
        inputString = fileName.readLine ();
        StringBuffer input = new StringBuffer ();	
        while (inputString.charAt (i) != '|')
        {
          input.append (inputString.charAt (i));
          i++;
        }
        artistFirstName = input.toString();
        i++;
        
        input = new StringBuffer ();
        while (inputString.charAt (i) != '|')
        {
          input.append (inputString.charAt (i));
          i++;
        }
        artistLastName = input.toString ();
        i++;
        
        input = new StringBuffer ();
        while (inputString.charAt (i) != '|')
        {
          input.append (inputString.charAt (i));
          i++;
        }
        Integer tempInt = new Integer (input.toString ());
        fashionabilityValue = tempInt;
        i++;
    }
    catch (Exception e)
    {
        System.out.println ("***** Error: Arist.read () *****");
        System.out.println ("\t" + e);
        return;
    }
}

//Desc: writes the variables artistFirstName, artistLastName,
//	and fashionabilityValue to a record line in the specified file
//Post: updates the specified file
public void write(RandomAccessFile fileName)
{
    try
    {
        fileName.writeBytes(artistFirstName + "|");
        fileName.writeBytes(artistLastName + "|");
        String fashValue="";
        fashValue=fashValue.valueOf(fashionabilityValue);
        fileName.writeBytes(fashValue+"|" + "\n");
    }
    catch (IOException e)
    {
        System.out.println ("***** Error: Artist.write () *****");
        System.out.println ("\t" + e);
    }
}

//Desc: saves an individual artist record into a file.  Will save over an
//      existing record if the last name and first name match or will add
//      a new record if no existing record matches this object.
//Pre:  all fields must be valid
//Post: the message informing the user has been printed and the artist.dat
//      file will be modified.
public void save()
{
    try
    {
        File artistFile = new File ("artist.dat");	
        File  tempArtistFile = new File ("artist.tmp");	
        Artist tempArtist = new Artist ();	
        boolean found = false;		
        RandomAccessFile newFile = new RandomAccessFile (tempArtistFile, "rw");

        if (!artistFile.exists ())
        {
          write(newFile);
        }
        else
        {
            RandomAccessFile oldFile = new RandomAccessFile (artistFile, "r");
            boolean compareArtist;
            while (oldFile.getFilePointer () != oldFile.length ()) 
            {
                tempArtist.read(oldFile);
                if (artistFirstName.equalsIgnoreCase(tempArtist.getArtistFirstName()) &&
                artistLastName.equalsIgnoreCase(tempArtist.getArtistLastName()))
                    compareArtist=true;
                else compareArtist=false;
                if(compareArtist) 
                {
                    write (newFile); 
                    found=true;
                } 
                else
                {
                  tempArtist.write(newFile); 
                }
            }  
            if (!found) write (newFile); 

          oldFile.close ();

        }

        newFile.close ();

        artistFile.delete ();
        tempArtistFile.renameTo (artistFile);
      }
      catch (Exception e)
      {
          System.out.println ("***** Error: Artist.putRecord () *****");
          System.out.println ("\t" + e);
      }
}

//Desc: reads in all fields into an Artist object from user input
//Post: artistFirstName, artistLastName, and fashionabilityValue are modified
public void readInRecord()
{
    try
    {     		
        System.out.println("Enter Artist First name: ");
        artistFirstName = UserInterface.getString();
        while(artistFirstName.length()>30) 
        {
            System.out.println("Artist First Name exceeds 30 characters. Please enter shortened name:");
            artistFirstName=UserInterface.getString();
        }       
        System.out.println("Enter Artist Last name: ");
        artistLastName= UserInterface.getString();
        while(artistLastName.length()>30) 
        {
            System.out.println("Artist Last Name exceeds 30 characters. Please enter shortened name:");
            artistLastName=UserInterface.getString();
        } 
        System.out.println("Enter Fashionability Value: ");
        fashionabilityValue=Integer.parseInt(UserInterface.getString());
        while (fashionabilityValue<0 || fashionabilityValue>10000)
        {
            System.out.println("Value out of range.  Please select integer value between 0 and 10,000: ");
            fashionabilityValue=UserInterface.getInt();
        }
        return;
    }
    catch (NumberFormatException e)
    {
       System.out.println("Value entered is not an integer Value. Please select"
               + " an integer value between 0 and 10,000: ");
       fashionabilityValue=Integer.parseInt(UserInterface.getString());
       return;
    }
    /*catch(Exception e)
    {
        System.out.println ("***** Error: Investment.readInvestmentData () *****");
        System.out.println ("\t" + e);
    }*/
}

//Desc: Deletes a single record in the artist.dat File if the artist last 
//      name and first name matches this object.
//Post: Modifies the artist.dat File
public void performDeletion () 
{
    try
    {
        File  artistFile = new File ("artist.dat");
        File  tempArtistFile = new File ("artist.tmp");
        Artist tempArtist = new Artist ();	
        if (!artistFile.exists ())
        {
            return;
        }
        RandomAccessFile inFile = new RandomAccessFile (artistFile, "r");
        RandomAccessFile outFile = new RandomAccessFile (tempArtistFile, "rw");
        while (inFile.getFilePointer () != inFile.length ())
        {
            tempArtist.read (inFile);
            if (!(artistFirstName.equalsIgnoreCase(tempArtist.getArtistFirstName()) &&
            artistLastName.equalsIgnoreCase(tempArtist.getArtistLastName())))	 
            {
                tempArtist.write (outFile);
            }
        }
        inFile.close ();
        outFile.close ();
        artistFile.delete ();
        tempArtistFile.renameTo (artistFile);
    }
    catch (Exception e)
    {
        System.out.println ("***** Error: BoughtPainting.performDeletion () *****");
        System.out.println ("\t" + e);
    }
}  

// Desc: Prints out a single record of an Artist
// Post: one line is printed to the screen.
 public void print ()
{
  System.out.print ("Artist First Name: " + artistFirstName);
  System.out.print ("\t Artist Last Name: " + artistLastName);
  System.out.println ("\t Fashionability Value: " + fashionabilityValue);
} 

public void add () { try { //obtainNewData (); /* updateFashionabilityValue(); updateArtistLastName(); updateArtistsFirstName();*/ readInRecord(); save (); System.out.println ("\nThe following record was inserted\n"); print (); //UserInterface.pressEnter();

    }
    catch (Exception e)
    {
        System.out.println ("***** Error: Artist.add () *****");
        System.out.println ("\t" + e);
    }
}

 //Desc: Deletes an Artist
public void delete ()
{
    try
    {
        String  input1;        // buffer for line of characters
        String  input2;
        boolean done = false;// tells when user is done entering information
        boolean  found = false;// tells when an investment has been found
        char choice;   // for storing user's response
        while (!found && !done)
        {
              System.out.println ("Please enter the artist's first name to be deleted: ");
              input1 =  UserInterface.getString();
              System.out.println ("Please enter the artist's last name to be deleted: ");
              input2 =  UserInterface.getString();
              found = find (input1, input2);
              if (found)
                  done=true;
              if (!found)
              {
                System.out.println ("Either "+input1.toString () + " or " + input2.toString() +
                                    " was not found.");
                System.out.println ("Would you like to enter another artist first name or last name (Y/N)?");
                choice = UserInterface.getChar();
                if (choice == 'N'|| choice == 'n')
                {
                  done = true;
                }
              }
        }
if (!found)
{
      return;
}
performDeletion ();
System.out.println ("\nThe record has been deleted.");
System.out.println("Press <ENTER> to return to menu");
    UserInterface.pressEnter();
    return;
}
catch (Exception e)
{
System.out.println ("***** Error: Artist.delete () *****");
System.out.println ("\t" + e);
}

} //Desc:uses the last name and the first name of an artist to find a record // in the file //Post: //Return: returns true if record is found or false if record is not found public int findFashionabilityValue(String afirstname, String alastname) { // find locates a given investment record if it exists. // Returns true if the investment is located, otherwise false. try { File artistFile = new File ("artist.dat"); boolean found = false; int fashionability=0; if (artistFile.exists()) { RandomAccessFile inFile = new RandomAccessFile (artistFile, "r");

            while (!found && (inFile.getFilePointer()!=inFile.length()))
            {
                read (inFile);
                if (alastname.equalsIgnoreCase(artistLastName) &&
                afirstname.equalsIgnoreCase(artistFirstName))
                {
                    found = true;
                fashionability=fashionabilityValue;
                }
            }
            inFile.close();
        }
        return fashionability;
    }
    catch (Exception e)
    {
        System.out.println ("***** Error: Artist.findFashionability () *****");
        System.out.println ("\t" + e);
        return 0;
    }

} }