#!/usr/bin/perl

use strict;
use warnings;
use autodie;
use List::Util qw(pairs);
use Config::Tiny;
use Path::Tiny;
use Text::Hogan::Compiler;

=head1 NAME

mkdocs-prep - mkdocs preprocessor expanding mustache tokens

=head1 VERSION

Version 0.01

=head1 SYNOPSIS

=head1 DESCRIPTION

B<mkdocs-prep> prepares a markdown document for B<mkdocs> processing.

The document is treated as a mustache template
and resolved using an external set of single-word tokens.

Template tokens are gathered from external config file F<site.mk>,
where each line lists a token, an equals sign, and replacement string.

Each token in the document,
wrapped with double curly brackets {{like_this}},
is replaced (including brackets) with corresponding string.

=cut

my ( $infile, $outfile ) = @ARGV;

my $config = Config::Tiny->new;
$config = Config::Tiny->read( 'site.mk', 'utf8' );

my $content = path($infile)->slurp_utf8;

my $compiler = Text::Hogan::Compiler->new;
my $template = $compiler->compile($content);

path($outfile)->spew_utf8( $template->render( $config->{_} ) );

1;