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632f0e07 |
1 | package App::SCS::PageSet; |
2 | |
3 | use Text::MultiMarkdown 'markdown'; |
4 | use HTML::Zoom; |
5 | use Sub::Quote; |
6 | use Syntax::Keyword::Gather; |
7 | use App::SCS::Page; |
8 | use IO::All; |
9 | use Try::Tiny; |
10 | use List::Util qw(reduce); |
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11 | use Module::Runtime qw(use_module); |
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12 | use JSON::MaybeXS; |
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13 | use Moo; |
14 | |
15 | with 'App::SCS::Role::PageChildren'; |
16 | |
17 | { |
18 | my $j = JSON->new; |
19 | sub _json { $j } |
20 | } |
21 | |
22 | has top_dir => (is => 'ro', lazy => 1, builder => 'base_dir'); |
23 | has base_dir => (is => 'ro', required => 1); |
24 | has plugin_config => (is => 'ro', required => 1); |
25 | has max_depth => (is => 'ro', default => quote_sub q{ 0 }); |
26 | has min_depth => (is => 'ro', default => quote_sub q{ 1 }); |
27 | |
28 | has rel_path => (is => 'lazy'); |
29 | |
30 | sub _build_rel_path { |
31 | my ($self) = @_; |
32 | io->dir('/') |
33 | ->catdir(File::Spec->abs2rel($self->base_dir->name, $self->top_dir->name)) |
34 | } |
35 | |
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36 | sub _page_set { $_[0] } |
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37 | sub _page_set_class { ref($_[0]) } |
38 | sub _top_dir { shift->top_dir } |
39 | sub _my_path { shift->base_dir } |
40 | |
41 | sub get { |
42 | my ($self, $spec) = @_; |
43 | $spec->{path} or die "path is required to get"; |
44 | my ($dir, $file) = $spec->{path} =~ m{^(?:(.*)/)?([^/]+)$}; |
45 | my $type; |
46 | my @poss = io->dir($self->base_dir)->${\sub { |
47 | my $io = shift; |
48 | defined($dir) ? $io->catdir($dir) : $io |
49 | }}->filter(sub { |
50 | $_->filename =~ /^\Q${file}\E${\$self->_types_re}$/ and $type = $1 |
51 | }) |
52 | ->${\sub { -e "$_[0]" ? $_[0]->all_files : () }}; |
53 | die "multiple files found for ${\$spec->{path}}:\n".join "\n", @poss |
54 | if @poss > 1; |
55 | return undef unless @poss; |
56 | $self->_inflate( |
57 | $type, $self->rel_path->catdir($spec->{path}), $poss[0] |
58 | ); |
59 | } |
60 | |
61 | sub _inflate { |
62 | my ($self, $type, $path, $io) = @_; |
63 | (my $cache_name = $io->name) =~ s/\/([^\/]+)$/\/.htcache.$1.json/; |
64 | my $cache = io($cache_name); |
65 | if (-f $cache_name) { |
66 | if ($cache->mtime >= $io->mtime) { |
67 | return try { |
68 | $self->_new_page($path, $self->_json->decode($cache->all)); |
69 | } catch { |
70 | die "Error inflating ${path} from cache: $_\n"; |
71 | } |
72 | } |
73 | } |
74 | my $raw = $io->all; |
75 | try { |
76 | my $extracted = $self->${\"_extract_from_${type}"}($raw); |
77 | try { $cache->print($self->_json->encode($extracted)); }; |
78 | $self->_new_page($path, $extracted); |
79 | } catch { |
80 | die "Error inflating ${path} as ${type}: $_\n"; |
81 | } |
82 | } |
83 | |
84 | sub map { |
85 | my ($self, $mapper) = @_; |
86 | [ map $mapper->($_), $self->flatten ] |
87 | } |
88 | |
89 | sub _depth_under_base { |
90 | my ($self, $path) = @_; |
91 | File::Spec->splitdir(File::Spec->abs2rel($path, $self->base_dir->name)) |
92 | } |
93 | |
94 | sub flatten { |
95 | my ($self) = @_; |
96 | my $slash = io->dir('/'); |
97 | map { |
98 | my ($path, $type) = $_->name =~ /^(.*)${\$self->_types_re}$/; |
99 | $self->_inflate( |
100 | $type, |
101 | $slash->catdir(File::Spec->abs2rel($path, $self->top_dir->name)), |
102 | $_ |
103 | ); |
104 | } $self->_all_files; |
105 | } |
106 | |
107 | sub all_paths { |
108 | my ($self) = @_; |
109 | my $slash = io->dir('/'); |
110 | map { |
111 | my ($path, $type) = $_->name =~ /^(.*)${\$self->_types_re}$/; |
112 | $slash->catdir(File::Spec->abs2rel($path, $self->top_dir->name))->name, |
113 | } $self->_all_files; |
114 | } |
115 | |
116 | sub _all_files { |
117 | my ($self) = @_; |
118 | return unless (my $base = $self->base_dir)->exists; |
119 | my %seen; |
120 | my $min = $self->min_depth; |
121 | map { |
122 | $_->filter(sub { $_->filename =~ /${\$self->_types_re}$/ }) |
123 | ->all_files($self->max_depth - ($min-1)) |
124 | } map |
125 | $min > 1 |
126 | ? do { |
127 | # can't use ->all_dirs($min-1) since we only want the final level |
128 | my @x = ($_); @x = map $_->all_dirs, @x for 1..$min-1; @x |
129 | } |
130 | : $_, |
131 | $base; |
132 | } |
133 | |
134 | sub latest { |
135 | my ($self, $max) = @_; |
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136 | use_module('App::SCS::LatestPageSet')->new( |
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137 | parent => $self, |
138 | max_entries => $max, |
139 | ); |
140 | } |
141 | |
142 | sub _new_page { |
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143 | use_module('App::SCS::Page')->new( |
144 | path => $_[1], page_set => $_[0], %{$_[2]} |
145 | ); |
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146 | } |
147 | |
148 | sub _types_re { qw/\.(html|md)/ } |
149 | |
150 | sub _extract_from_html { |
151 | my ($self, $html) = @_; |
152 | my %meta; |
153 | HTML::Zoom->from_html($html) |
154 | ->select('title')->collect_content({ into => \my @title }) |
155 | ->${\sub { |
156 | my $z = shift; |
157 | return reduce { |
158 | $a->collect("meta[name=${b}]", { into => ($meta{$b}=[]) }) |
159 | } $z, qw(subtitle description keywords created plugins) |
160 | }} |
161 | ->run; |
162 | +{ |
163 | title => $title[0]->{raw}||'', |
164 | (map +($_ => $meta{$_}[0]->{attrs}{content}||''), keys %meta), |
165 | html => $html, |
166 | } |
167 | } |
168 | |
169 | sub _extract_from_md { |
170 | my ($self, $md) = @_; |
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171 | $self->_extract_from_html(markdown($md, { document_format => 'complete' })); |
172 | } |
173 | |
174 | 1; |