package DocLife::Markdown;

use strict;
use warnings;
use parent 'DocLife';
use Plack::Util::Accessor qw(tm);
use Text::Markdown;

sub prepare_app {
    my ($self, $env) = @_;
    $self->SUPER::prepare_app($env);
    my $tm = Text::Markdown->new;
    $self->tm($tm);
}

sub format {
    my ($self, $req, $res, $file) = @_;
    my $text = $file->slurp;
    my ($title) = $text=~m|^#\s(.*)|;
    unless ($title) {
        $title = $file->basename;
        my $suffix = $self->suffix;
        $title=~s|\Q$suffix\E$||;
    }
    my $body = $self->html_header($title,$req);
    $body.= $self->tm->markdown($text);
    $body.= $self->html_footer;
    $res->body($body);
}

sub script {
    my ($self,$req) = @_;
    return unless $req;

    my $int = $req->param('refresh');
    return '' unless $int;
<<"EOF"
window.setInterval( function() {
    window.location.reload();
}, $int );
EOF
}

sub style {
<<"EOF"
    *{ margin:0; padding:0; font-family: arial,sans-serif; }
    body{ margin: 0 auto; width: 920px; padding: 0 0 30px; font-size: 14px; line-height: 23px; overflow-y: scroll; }
    a{ color: #4183C4; text-decoration: none; }
    header {margin: 15px 0 15px;}
    header nav{text-align: center;}
    article{padding: .7em;border: 1px solid #E9E9E9;background-color: #F8F8F8;}
    article h1,article h2,article h3,article h4,article h5,article h6{border:0!important;}
    article h1{font-size:170%!important;border-top:4px solid #aaa!important;padding-top:.5em!important;margin-top:1.5em!important;}
    article h1:first-child{margin-top:0!important;padding-top:.25em!important;border-top:none!important;}
    article h2{font-size:150%!important;margin-top:1.5em!important;border-top:4px solid #e0e0e0!important;padding-top:.5em!important;}
    article h3{margin-top:1em!important;}
    article hr{border:1px solid #ddd;}
    article p{margin:1em 0!important;line-height:1.5em!important;}
    article a.absent{color:#a00;}
    article ul{margin:1em 0 1em 2em!important;}
    article ol{margin:1em 0 1em 2em!important;}
    article ul li{margin-top:.5em;margin-bottom:.5em;}
    article ul ul,article ul ol,article ol ol,article ol ul{margin-top:0!important;margin-bottom:0!important;}
    article blockquote{margin:1em 0!important;border-left:5px solid #ddd!important;padding-left:.6em!important;color:#555!important;}
    article dt{font-weight:bold!important;margin-left:1em!important;}
    article dd{margin-left:2em!important;margin-bottom:1em!important;}
    article table{margin:1em 0!important;}
    article table th{border-bottom:1px solid #bbb!important;padding:.2em 1em!important;}
    article table td{border-bottom:1px solid #ddd!important;padding:.2em 1em!important;}
    article pre{margin:1em 0;font-size:12px;background-color:#eee;border:1px solid #ddd;padding:5px;line-height:1.5em;color:#444;overflow:auto;-webkit-box-shadow:rgba(0,0,0,0.07) 0 1px 2px inset;-webkit-border-radius:3px;-moz-border-radius:3px;border-radius:3px;}
    article pre::-webkit-scrollbar{height:8px;width:8px;}
    article pre::-webkit-scrollbar-track-piece{margin-bottom:10px;background-color:#e5e5e5;border-bottom-left-radius:4px 4px;border-bottom-right-radius:4px 4px;border-top-left-radius:4px 4px;border-top-right-radius:4px 4px;}
    article pre::-webkit-scrollbar-thumb:vertical{height:25px;background-color:#ccc;-webkit-border-radius:4px;-webkit-box-shadow:0 1px 1px rgba(255,255,255,1);}
    article pre::-webkit-scrollbar-thumb:horizontal{width:25px;background-color:#ccc;-webkit-border-radius:4px;}
    article pre code{
        font-family: Monaco, Monospace;
        padding:0!important;font-size:12px!important;background-color:#eee!important;border:none!important;
    }
    article code{   
        font-size:12px!important;background-color:#f8f8ff!important;color:#444!important;padding:0 .2em!important;border:1px solid #dedede!important; 
    }
    article a code,article a:link code,article a:visited code{color:#4183c4!important;}
    article img{max-width:100%;}
EOF
}

sub html_header {
    my ($self, $title, $req) = @_;
    $title ||= 'Index';
    
    my $style = $self->style;
    my $script = $self->script( $req );

my $top = $self->base_url;
<<"EOF"
<!DOCTYPE html>
<html>
<head>
<title>$title</title>
<style>$style</style>
<script>$script</script>
</head>
<body>
<header><nav>
    <a href="$top">TOP</a>
    <a href="?refresh=800">Auto Refresh</a>
</nav></header>
<article>
EOF
}

sub html_footer {
<<"EOF"
</article>
</body>
</html>
EOF
}

=head1 NAME

DocLife::Markdown - Markdown Viewer.

=head1 SYNOPSIS

    # app.psgi
    use DocLife::Markdown;
    DocLife::Markdown->new( root => "./doc", suffix => ".md" );

    # one-liner
    plackup -MDocLife::Markdown -e 'DocLife::Markdown->new( root => "./doc" )->to_app'

=head1 SEE ALSO

L<DocLife>, L<Text::Markdown>

=cut

1;