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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; |
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10 | use List::Util qw(reduce max); |
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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; |
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14 | use Hash::Merge qw(merge); |
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15 | use JSONY; |
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16 | |
17 | with 'App::SCS::Role::PageChildren'; |
18 | |
19 | { |
20 | my $j = JSON->new; |
21 | sub _json { $j } |
22 | } |
23 | |
24 | has top_dir => (is => 'ro', lazy => 1, builder => 'base_dir'); |
25 | has base_dir => (is => 'ro', required => 1); |
26 | has plugin_config => (is => 'ro', required => 1); |
27 | has max_depth => (is => 'ro', default => quote_sub q{ 0 }); |
28 | has min_depth => (is => 'ro', default => quote_sub q{ 1 }); |
29 | |
30 | has rel_path => (is => 'lazy'); |
31 | |
32 | sub _build_rel_path { |
33 | my ($self) = @_; |
34 | io->dir('/') |
35 | ->catdir(File::Spec->abs2rel($self->base_dir->name, $self->top_dir->name)) |
36 | } |
37 | |
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38 | sub _page_set { $_[0] } |
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39 | sub _page_set_class { ref($_[0]) } |
40 | sub _top_dir { shift->top_dir } |
41 | sub _my_path { shift->base_dir } |
42 | |
43 | sub get { |
44 | my ($self, $spec) = @_; |
45 | $spec->{path} or die "path is required to get"; |
46 | my ($dir, $file) = $spec->{path} =~ m{^(?:(.*)/)?([^/]+)$}; |
47 | my $type; |
48 | my @poss = io->dir($self->base_dir)->${\sub { |
49 | my $io = shift; |
50 | defined($dir) ? $io->catdir($dir) : $io |
51 | }}->filter(sub { |
52 | $_->filename =~ /^\Q${file}\E${\$self->_types_re}$/ and $type = $1 |
53 | }) |
54 | ->${\sub { -e "$_[0]" ? $_[0]->all_files : () }}; |
55 | die "multiple files found for ${\$spec->{path}}:\n".join "\n", @poss |
56 | if @poss > 1; |
57 | return undef unless @poss; |
58 | $self->_inflate( |
59 | $type, $self->rel_path->catdir($spec->{path}), $poss[0] |
60 | ); |
61 | } |
62 | |
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63 | sub _config_files_for { |
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64 | my ($self, $path) = @_; |
65 | |
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66 | my @dir_parts = io->dir($path)->splitdir; |
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67 | my @dirs = map io->dir('')->catdir(@dir_parts[1..$_]), 1..($#dir_parts - 1); |
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68 | |
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69 | return grep +(-f $_->name and not $_->empty), |
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70 | map $self->_top_dir->catfile("${_}.conf"), @dirs; |
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71 | } |
72 | |
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73 | sub _inflate { |
74 | my ($self, $type, $path, $io) = @_; |
75 | (my $cache_name = $io->name) =~ s/\/([^\/]+)$/\/.htcache.$1.json/; |
76 | my $cache = io($cache_name); |
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77 | my @config_files = $self->_config_files_for($path); |
78 | my $max_stat = max map $_->mtime, $io, @config_files; |
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79 | |
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80 | if (-f $cache_name) { |
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81 | if ($cache->mtime >= $max_stat) { |
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82 | return try { |
83 | $self->_new_page($path, $self->_json->decode($cache->all)); |
84 | } catch { |
85 | die "Error inflating ${path} from cache: $_\n"; |
86 | } |
87 | } |
88 | } |
89 | my $raw = $io->all; |
90 | try { |
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91 | |
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92 | my $extracted = $self->${\"_extract_from_${type}"}($raw); |
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93 | my $jsony = JSONY->new; |
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94 | my $config = reduce { merge($a, $jsony->load($b->all)) } [], @config_files; |
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95 | |
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96 | $extracted->{plugins} = $jsony->load($extracted->{plugins}); |
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97 | |
98 | my $setup = $extracted; |
99 | |
100 | $setup->{plugin_config} = merge($extracted->{plugins}, $config); |
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101 | |
102 | try { |
103 | my $tmp_cache = io($cache_name . ".tmp"); |
104 | $tmp_cache->print($self->_json->encode($setup)); |
105 | $tmp_cache->rename($cache_name); |
106 | }; |
107 | |
108 | $self->_new_page($path, $setup); |
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109 | } catch { |
110 | die "Error inflating ${path} as ${type}: $_\n"; |
111 | } |
112 | } |
113 | |
114 | sub map { |
115 | my ($self, $mapper) = @_; |
116 | [ map $mapper->($_), $self->flatten ] |
117 | } |
118 | |
119 | sub _depth_under_base { |
120 | my ($self, $path) = @_; |
121 | File::Spec->splitdir(File::Spec->abs2rel($path, $self->base_dir->name)) |
122 | } |
123 | |
124 | sub flatten { |
125 | my ($self) = @_; |
126 | my $slash = io->dir('/'); |
127 | map { |
128 | my ($path, $type) = $_->name =~ /^(.*)${\$self->_types_re}$/; |
129 | $self->_inflate( |
130 | $type, |
131 | $slash->catdir(File::Spec->abs2rel($path, $self->top_dir->name)), |
132 | $_ |
133 | ); |
134 | } $self->_all_files; |
135 | } |
136 | |
137 | sub all_paths { |
138 | my ($self) = @_; |
139 | my $slash = io->dir('/'); |
140 | map { |
141 | my ($path, $type) = $_->name =~ /^(.*)${\$self->_types_re}$/; |
142 | $slash->catdir(File::Spec->abs2rel($path, $self->top_dir->name))->name, |
143 | } $self->_all_files; |
144 | } |
145 | |
146 | sub _all_files { |
147 | my ($self) = @_; |
148 | return unless (my $base = $self->base_dir)->exists; |
149 | my %seen; |
150 | my $min = $self->min_depth; |
151 | map { |
152 | $_->filter(sub { $_->filename =~ /${\$self->_types_re}$/ }) |
153 | ->all_files($self->max_depth - ($min-1)) |
154 | } map |
155 | $min > 1 |
156 | ? do { |
157 | # can't use ->all_dirs($min-1) since we only want the final level |
158 | my @x = ($_); @x = map $_->all_dirs, @x for 1..$min-1; @x |
159 | } |
160 | : $_, |
161 | $base; |
162 | } |
163 | |
164 | sub latest { |
165 | my ($self, $max) = @_; |
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166 | use_module('App::SCS::LatestPageSet')->new( |
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167 | parent => $self, |
168 | max_entries => $max, |
169 | ); |
170 | } |
171 | |
172 | sub _new_page { |
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173 | use_module('App::SCS::Page')->new( |
174 | path => $_[1], page_set => $_[0], %{$_[2]} |
175 | ); |
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176 | } |
177 | |
178 | sub _types_re { qw/\.(html|md)/ } |
179 | |
180 | sub _extract_from_html { |
181 | my ($self, $html) = @_; |
182 | my %meta; |
183 | HTML::Zoom->from_html($html) |
184 | ->select('title')->collect_content({ into => \my @title }) |
185 | ->${\sub { |
186 | my $z = shift; |
187 | return reduce { |
188 | $a->collect("meta[name=${b}]", { into => ($meta{$b}=[]) }) |
189 | } $z, qw(subtitle description keywords created plugins) |
190 | }} |
191 | ->run; |
192 | +{ |
193 | title => $title[0]->{raw}||'', |
194 | (map +($_ => $meta{$_}[0]->{attrs}{content}||''), keys %meta), |
195 | html => $html, |
196 | } |
197 | } |
198 | |
199 | sub _extract_from_md { |
200 | my ($self, $md) = @_; |
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201 | $self->_extract_from_html(markdown($md, { document_format => 'complete' })); |
202 | } |
203 | |
204 | 1; |