#!/usr/bin/perl

use v5.14;
use strict;
use warnings;

use JSON;
use Clone 'clone';
use IO::Handle;

# Send the header so that i3bar knows we want to use JSON:
printf "%s", '{"version":1}';

# Begin the endless array.
printf "%s", '[';

# We send an empty first array of blocks to make the loop simpler:
printf "%s",'[],';

open my $conky, "-|:encoding(utf8)", "conky -c $ENV{HOME}/.i3/conkyrc-perl";
STDOUT->autoflush();

my @data;
my %in_progress;
my $json = JSON->new;
$json->ascii([1]);

my %simple_mappings = (
	"SHORTTEXT" => "shorttext",
);

while (<$conky>) {
	chomp($_);

	next if m/^\s+$/;

	if (m/^END_BLOCK$/) {
		STDOUT->printf("%s,\n", $json->encode(\@data));
		undef @data;
		next;
	}

	if (m/^COLOR: (#[a-zA-Z0-9]+)$/) {
		$in_progress{color} = $1;
		next;
	}

	for my $key (keys %simple_mappings) {
		if (m/^$key: (.*)$/) {
			$in_progress{$simple_mappings{$key}} = $1;
			next;
		}
	}

	if (m/^FULLTEXT: (.*)$/) {
		my $fulltext = $1;
		$in_progress{full_text} = $fulltext;
		push @data, clone \%in_progress;
		undef %in_progress;
		next;
	}

	printf STDERR "Got unexpected data: %s\n", $_;
}