#!/usr/bin/perl

use strict;
use warnings;

# Try and find .mp3 links in archive.org pages

if ( ! defined $ARGV[0] ) {
	print "Need to pass archive.org URL\n";
	exit 1;
}

my $page_url = shift(@ARGV);
my $page_content = `curl -s $page_url`;
my @names;
my @links;

my $counter = 1;
foreach my $line ( split("\n",$page_content) ) {
	chomp $line;
	if ( $line =~ m/<meta itemprop="name" content="(.*)"/ ) {
		my $name = $counter . "_" . $1;
		push(@names,$name);
		$counter++;
	} elsif ( $line =~ m/<link itemprop="associatedMedia" href="(.*\.mp3)"/ ) {
		push(@links,$1);
	}
}

my %link_map;
@link_map{@names} = @links;

sub make_filename($) {
	my $name = shift;
	my $filename;
	open(my $fh, ">>", \$filename);
	foreach my $char ( split("",$name) ) {
		if ( $char =~ m/[\s->'\/\!\&\:]/ ) {
			print $fh "";
		} else {
			print $fh "$char";
		}
	}

	return $filename;
}

foreach my $key ( keys %link_map ) {
	#print "$key : $link_map{$key}\n";
	my $filename = make_filename($key) . ".mp3";
	#print "wget -q $link_map{$key} -O $filename\n";
	print "Downloading $key\n";
	system("wget -q $link_map{$key} -O $filename");
}