#!/usr/bin/perl -w

use strict;

# Declare yon variables
my $ent;
my $line;
my @entry;
my @lname;
my @fname;
my @email;
my $addfname;
my $addlname;
my $addemail;
my $addstring;
my @addtemp;
my $t_entry;
my $option;
my $x;

$x = 1;
while ($x == 1) {
	system "cls";
    print "\nAddress Book\n------------\n";
	print "Options:\nL for list\nA for add entry\nR for remove entry\nS for search\nQ to quit\n";
    chomp ($option = <STDIN>);
    if ($option eq "l") {
	    &entrylist;
    } elsif ($option eq "a") {
	    &addentry;
    } elsif ($option eq "r") {
	    &unavailable; #&removeentry;
    } elsif ($option eq "s") {
	    &unavailable; #&search;
    } elsif ($option eq "q") {
		$x = 2;
	} else {
	    print "Invalid Entry!";
    }
}

sub entrylist {
system "cls";
### Open the filehandle for the address database, sort it.
open ADDYBASE, "addybase.adb"
   or die "\nRequired source database file does not exist!";
foreach (<ADDYBASE>) {
	$ent++;
	chomp ($line = $_);
	@entry = split /:/, $line;
    
	# Now that they're separated, store them into individual arrays
	$t_entry = pop @entry;
    push (@email, $t_entry);
	$t_entry = pop @entry;
	push (@fname, $t_entry);
	$t_entry = pop @entry;
	push (@lname, $t_entry);
    }
close ADDYBASE;
### Ensure you start at 0
$ent -=1;
for (0..$ent) {
    print "\n", $lname[$_],", ", $fname[$_], " -- ", $email[$_];
   }
&orquit;
}

sub orquit {
	print "\n\nPress enter to continue, enter Q to quit\n";
	chomp ($option = <STDIN>);
	$x = 2 if ($option eq "q");
}

sub unavailable {
    print "This function is not yet available.  Sorry.";
	&orquit;
}

sub addentry {
	open ADDYBASE, ">>addybase.adb";
@addtemp = undef;
system "cls";
print "First name?\n";
chomp ($addfname = <STDIN>);
push (@addtemp, $addfname);
print "\nLast name?\n";
chomp ($addlname = <STDIN>);
push (@addtemp, $addlname);
print "\nEmail address?\n";
chomp ($addemail = <STDIN>);
push (@addtemp, $addemail);
$addstring = (join ":", @addtemp);
print ADDYBASE ("\n", $addstring);
close ADDYBASE;
}