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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 JSONY; |
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15 | |
16 | with 'App::SCS::Role::PageChildren'; |
17 | |
18 | { |
19 | my $j = JSON->new; |
20 | sub _json { $j } |
21 | } |
22 | |
23 | has top_dir => (is => 'ro', lazy => 1, builder => 'base_dir'); |
24 | has base_dir => (is => 'ro', required => 1); |
25 | has plugin_config => (is => 'ro', required => 1); |
26 | has max_depth => (is => 'ro', default => quote_sub q{ 0 }); |
27 | has min_depth => (is => 'ro', default => quote_sub q{ 1 }); |
28 | |
29 | has rel_path => (is => 'lazy'); |
30 | |
31 | sub _build_rel_path { |
32 | my ($self) = @_; |
33 | io->dir('/') |
34 | ->catdir(File::Spec->abs2rel($self->base_dir->name, $self->top_dir->name)) |
35 | } |
36 | |
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37 | sub _page_set { $_[0] } |
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38 | sub _page_set_class { ref($_[0]) } |
39 | sub _top_dir { shift->top_dir } |
40 | sub _my_path { shift->base_dir } |
41 | |
42 | sub get { |
43 | my ($self, $spec) = @_; |
44 | $spec->{path} or die "path is required to get"; |
45 | my ($dir, $file) = $spec->{path} =~ m{^(?:(.*)/)?([^/]+)$}; |
46 | my $type; |
47 | my @poss = io->dir($self->base_dir)->${\sub { |
48 | my $io = shift; |
49 | defined($dir) ? $io->catdir($dir) : $io |
50 | }}->filter(sub { |
51 | $_->filename =~ /^\Q${file}\E${\$self->_types_re}$/ and $type = $1 |
52 | }) |
53 | ->${\sub { -e "$_[0]" ? $_[0]->all_files : () }}; |
54 | die "multiple files found for ${\$spec->{path}}:\n".join "\n", @poss |
55 | if @poss > 1; |
56 | return undef unless @poss; |
57 | $self->_inflate( |
58 | $type, $self->rel_path->catdir($spec->{path}), $poss[0] |
59 | ); |
60 | } |
61 | |
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62 | sub _config_files_for { |
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63 | my ($self, $path) = @_; |
64 | |
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65 | my @dir_parts = io->dir($path)->splitdir; |
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66 | my @dirs = map io->dir('')->catdir(@dir_parts[1..$_]), 1..($#dir_parts - 1); |
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67 | |
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68 | return grep +(-f $_->name and not $_->empty), |
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69 | map $self->_top_dir->catfile("${_}.conf"), @dirs; |
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70 | } |
71 | |
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72 | sub _inflate { |
73 | my ($self, $type, $path, $io) = @_; |
74 | (my $cache_name = $io->name) =~ s/\/([^\/]+)$/\/.htcache.$1.json/; |
75 | my $cache = io($cache_name); |
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76 | my @config_files = $self->_config_files_for($path); |
77 | my $max_stat = max map $_->mtime, $io, @config_files; |
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78 | |
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79 | if (-f $cache_name) { |
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80 | if ($cache->mtime >= $max_stat) { |
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81 | return try { |
82 | $self->_new_page($path, $self->_json->decode($cache->all)); |
83 | } catch { |
84 | die "Error inflating ${path} from cache: $_\n"; |
85 | } |
86 | } |
87 | } |
88 | my $raw = $io->all; |
89 | try { |
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90 | |
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91 | my $extracted = $self->${\"_extract_from_${type}"}($raw); |
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92 | my $jsony = JSONY->new; |
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93 | |
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94 | my $setup = { |
95 | %$extracted, |
96 | plugin_config => [ |
97 | map @{$jsony->load($_)}, ( |
98 | $extracted->{plugins}, |
99 | (map $_->all, reverse @config_files), # apply config deepest first |
100 | ) |
101 | ] |
102 | }; |
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103 | |
104 | try { |
105 | my $tmp_cache = io($cache_name . ".tmp"); |
106 | $tmp_cache->print($self->_json->encode($setup)); |
107 | $tmp_cache->rename($cache_name); |
108 | }; |
109 | |
110 | $self->_new_page($path, $setup); |
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111 | } catch { |
112 | die "Error inflating ${path} as ${type}: $_\n"; |
113 | } |
114 | } |
115 | |
116 | sub map { |
117 | my ($self, $mapper) = @_; |
118 | [ map $mapper->($_), $self->flatten ] |
119 | } |
120 | |
121 | sub _depth_under_base { |
122 | my ($self, $path) = @_; |
123 | File::Spec->splitdir(File::Spec->abs2rel($path, $self->base_dir->name)) |
124 | } |
125 | |
126 | sub flatten { |
127 | my ($self) = @_; |
128 | my $slash = io->dir('/'); |
129 | map { |
130 | my ($path, $type) = $_->name =~ /^(.*)${\$self->_types_re}$/; |
131 | $self->_inflate( |
132 | $type, |
133 | $slash->catdir(File::Spec->abs2rel($path, $self->top_dir->name)), |
134 | $_ |
135 | ); |
136 | } $self->_all_files; |
137 | } |
138 | |
139 | sub all_paths { |
140 | my ($self) = @_; |
141 | my $slash = io->dir('/'); |
142 | map { |
143 | my ($path, $type) = $_->name =~ /^(.*)${\$self->_types_re}$/; |
144 | $slash->catdir(File::Spec->abs2rel($path, $self->top_dir->name))->name, |
145 | } $self->_all_files; |
146 | } |
147 | |
148 | sub _all_files { |
149 | my ($self) = @_; |
150 | return unless (my $base = $self->base_dir)->exists; |
151 | my %seen; |
152 | my $min = $self->min_depth; |
153 | map { |
154 | $_->filter(sub { $_->filename =~ /${\$self->_types_re}$/ }) |
155 | ->all_files($self->max_depth - ($min-1)) |
156 | } map |
157 | $min > 1 |
158 | ? do { |
159 | # can't use ->all_dirs($min-1) since we only want the final level |
160 | my @x = ($_); @x = map $_->all_dirs, @x for 1..$min-1; @x |
161 | } |
162 | : $_, |
163 | $base; |
164 | } |
165 | |
166 | sub latest { |
167 | my ($self, $max) = @_; |
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168 | use_module('App::SCS::LatestPageSet')->new( |
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169 | parent => $self, |
170 | max_entries => $max, |
171 | ); |
172 | } |
173 | |
174 | sub _new_page { |
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175 | use_module('App::SCS::Page')->new( |
176 | path => $_[1], page_set => $_[0], %{$_[2]} |
177 | ); |
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178 | } |
179 | |
180 | sub _types_re { qw/\.(html|md)/ } |
181 | |
182 | sub _extract_from_html { |
183 | my ($self, $html) = @_; |
184 | my %meta; |
185 | HTML::Zoom->from_html($html) |
186 | ->select('title')->collect_content({ into => \my @title }) |
187 | ->${\sub { |
188 | my $z = shift; |
189 | return reduce { |
190 | $a->collect("meta[name=${b}]", { into => ($meta{$b}=[]) }) |
191 | } $z, qw(subtitle description keywords created plugins) |
192 | }} |
193 | ->run; |
194 | +{ |
195 | title => $title[0]->{raw}||'', |
196 | (map +($_ => $meta{$_}[0]->{attrs}{content}||''), keys %meta), |
197 | html => $html, |
198 | } |
199 | } |
200 | |
201 | sub _extract_from_md { |
202 | my ($self, $md) = @_; |
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203 | $self->_extract_from_html(markdown($md, { document_format => 'complete' })); |
204 | } |
205 | |
206 | 1; |