#!/usr/bin/perl

use strict;
use warnings;

my $tlUrl = "https://the-eye.eu/public/";
my %currentPageRef;
my $pageNest;
my $curl = `which curl`;
chomp $curl;

if ( $curl eq "" || ! defined $curl ) {
	print "No curl, exiting...\n";
	exit 1;
}

sub dumpPage {
	my $page = shift;
	my @pageContent = split("\n", `$curl -s $page`);
	if ($page =~ m/public\/(.*)$/) {
		$pageNest = $1;
	}
	if ( $pageNest =~ m/\.\.\/$/ ) {
		# Need to lop off old nested dir
		$pageNest =~ s/\/([^\/]*\/\.\.\/)$//g;
	}
	if ( $pageNest !~ m/\/$/ ) {
		$pageNest .= "/";
	}
	my $count = 0;
	foreach my $line (@pageContent) {
		if ($line =~ m/text\/javascript/ || $line =~ m/\/div/ || $line =~ m/\/i/ || $line =~ m/img\ src/ || $line =~ m/\/script/) {
			next;
		}
		#if ($line =~ m/\"(.*\/)\"\>(.*)\</) {
		if ($line =~ m/\"(.*)\"\>(.*)\</) {
			my $link = $1;
			$link = $pageNest . $link;
			my $name = $2;
			if ($name =~ m/>/) {
				$name =~ s/>/>/g;
			}
			print "$count : $name\n";
			$currentPageRef{$count} = $link;
			$count++;
		}
	}
}

sub pageReturn {
	my $choice = shift;
	my $newPage = $tlUrl . $currentPageRef{$choice};
	return $newPage;
}

sub download {
	my $link = shift;
	system("wget $link");
}

sub printHelp {

	my $help = <<EOF
* Basic usage:
Type the number that corresponds with the link you'd like to browse to to browse there.
( Beware selecting a binary file will dump the output to your term )

* Commands:

** top
Return to the docroot of browseable files ( /public/ )

** download
Type 'download' followed by the selection number to download the file

** search
Type 'search' followed by a term to search the current dir tree
If doing a multiword search, wrap the query in quotes like "search terms here"

** file
Type file followed by the selection number to get the full link path
EOF
;
	print "$help";

}

if ( defined $ARGV[0] && $ARGV[0] =~ /h/ ) {
	printHelp();
	exit 0;
}

print "The Eye CLI Browser\n";
dumpPage($tlUrl);
while () {
	print "Enter a selection: ";
	my $input = <STDIN>;
	chomp $input;
	if ($input =~ m/download/) {
		my @inputs = split(" ", $input);
		my $dlLink = $currentPageRef{$inputs[1]};
		$dlLink = $tlUrl . $dlLink;
		download($dlLink);
		next;
	}
	if ($input =~ m/file/) {
		my @inputs = split(" ", $input);
		my $queryLink = $currentPageRef{$inputs[1]};
		$queryLink = $tlUrl . $queryLink;
		print "File is: $queryLink\n";
		next;
	}
	if ($input =~ m/quit/||$input =~ /exit/) {
		print "Exiting..\n";
		exit 0;
	}
	if ($input =~ m/search/) {
		my @inputs = split(" ", $input);
		shift(@inputs);
		my $searchTerm = join(" ", @inputs);
		#my $searchTerm = $inputs[1];
		if ( $searchTerm =~ m/\"(.*)\"/ ) {
			$searchTerm = $1;
			$searchTerm =~ s/\ /%20/g;
		}
		foreach my $key ( keys %currentPageRef ) {
			if ( $currentPageRef{$key} =~ m/$searchTerm/i ) {
				my $printLine = $currentPageRef{$key};
				$printLine =~ s/%20/\ /g;
				$printLine =~ s/%2C/,/g;
				$printLine =~ s/%26/&/g;
				print "$key : $printLine\n";
			}
		}
		next;
	}
	my $newPage;
	if ($input eq "top") {
		$newPage = $tlUrl;
	} else {
		$newPage = pageReturn($input);
		#print "Your next request is: $newPage\n";

	}
	%currentPageRef = ();
	dumpPage($newPage);
}