mojolicious perl server

diff --git a/angular-server.pl b/angular-server.pl
new file mode 100755 (executable)
index 0000000..1daf2ef
--- /dev/null
+++ b/angular-server.pl
@@ -0,0 +1,235 @@
+#!/usr/bin/env perl
+
+use lib 'common/mojo/lib';
+
+use Mojolicious::Lite;
+use Data::Dump qw(dump);
+use Time::HiRes;
+use Clone qw(clone);
+use Mojo::UserAgent;
+
+sub new_uuid { Time::HiRes::time * 100000 }
+
+# based on
+# http://docs.getangular.com/REST.Basic
+# http://angular.getangular.com/data
+
+push @{app->static->paths}, 'app';
+
+
+my $couchdb = $ENV{COUCHDB} || 'http://localhost:5984';
+my $client = Mojo::UserAgent->new;
+
+sub _couchdb_put {
+       my ( $url, $data ) = @_;
+
+       $data->{'$entity'} = $1 if $url =~ m{/(\w+)\.\d+/$/};
+
+       my $json = Mojo::JSON->new->encode( $data );
+
+       my $rev;
+
+       warn "# _couchdb_put $url = $json";
+       return $client->put( "$couchdb/$url" => $json)->res->json;
+}
+
+sub _couchdb_get {
+       my ( $url ) = @_;
+       my $return = $client->get( "$couchdb/$url" )->res->json;
+       warn "# _couchdb_get $url = ",dump($return);
+       return $return;
+}
+
+
+our $id2nr;
+
+
+sub _render_jsonp {
+       my ( $self, $json ) = @_;
+#warn "## _render_json ",dump($json);
+       my $data = $self->render( json => $json, partial => 1 );
+warn "## _render_json $data";
+       if ( my $callback = $self->param('callback') ) {
+               $data = "$callback($data)";
+       }
+       $self->render( data => $data, format => 'js' );
+}
+
+#get '/' => 'index';
+
+
+get '/data/' => sub {
+       my $self = shift;
+       _render_jsonp( $self, _couchdb_get('/_all_dbs') );
+};
+
+get '/data/:database' => sub {
+       my $self = shift;
+       my $database = $self->param('database');
+
+       my $list_databases = { name => $database };
+
+       my $counts = _couchdb_get("/$database/_design/entity/_view/counts?group=true");
+       if ( exists $counts->{error} ) {
+               warn "creating CouchDB view because of ", dump($counts);
+               _couchdb_put "/$database/_design/entity", {
+                       _id => '_design/entity',
+                       language => 'javascript',
+                       views => {
+                               counts => {
+                                       map    => q| function(doc) { emit(doc._id.split('.')[0],1); } |,
+                                       reduce => q| function(keys,values,rereduce) { return sum(values); } |,
+                               }
+                       }
+               };
+               $counts = _couchdb_get("/$database/_design/entity/_view/counts?group=true")
+               || die "give up!";
+       }
+
+       warn "# counts ",dump($counts);
+
+       foreach my $row ( @{ $counts->{rows} } ) {
+               my $n = $row->{value};
+               $list_databases->{entities}->{ $row->{key} } = $n;
+               $list_databases->{document_counts} += $n;
+       }
+       warn dump($list_databases);
+       _render_jsonp( $self,  $list_databases );
+};
+
+get '/data/:database/:entity' => sub {
+       my $self = shift;
+
+       my $database = $self->param('database');
+       my $entity   = $self->param('entity');
+
+       my $endkey = $entity;
+       $endkey++;
+
+       my $counts = _couchdb_get qq|/$database/_all_docs?startkey="$entity";endkey="$endkey";include_docs=true|;
+       warn "# counts ",dump($counts);
+
+       _render_jsonp( $self, [ map { $_->{doc} } @{ $counts->{rows} } ] )
+};
+
+get '/data/:database/:entity/:id' => sub {
+    my $self = shift;
+
+       my $database = $self->param('database');
+       my $entity   = $self->param('entity');
+       my $id       = $self->param('id');
+
+       _render_jsonp( $self, _couchdb_get( "/$database/$entity.$id" ) );
+};
+
+any [ 'post' ] => '/data/:database/:entity' => sub {
+       my $self = shift;
+       my $database = $self->param('database');
+       my $entity   = $self->param('entity');
+       my $json = $self->req->json;
+       my $id = $json->{'$id'} # XXX we don't get it back from angular.js
+               || new_uuid;
+       warn "## $database $entity $id body ",dump($self->req->body, $json);
+
+       $json->{'$id'} ||= $id; # make sure $id is in there
+
+       my $new = _couchdb_put "/$database/$entity.$id" => $json;
+       warn "new: ",dump($new);
+       if ( $new->{ok} ) {
+               $json->{'_'.$_} = $new->{$_} foreach ( 'rev','id' );
+       } else {
+               warn "ERROR: ",dump($new);
+               $json->{error} = $new;
+       }
+
+       _render_jsonp( $self,  $json );
+};
+
+
+#get '/' => sub { shift->redirect_to('/app/') };
+
+# CouchDB proxy for _design _view
+
+get '/:database/_design/:design/_view/:view' => sub {
+       my $self = shift;
+       my $url = join('/', $self->param('database'),'_design',$self->param('design'),'_view',$self->param('view') );
+       my $param = $self->req->url->query->clone->remove('callback')->to_string;
+       $url .= '?' . $param if $param;
+       warn "CouchDB proxy $url";
+       _render_jsonp( $self, _couchdb_get($url));
+};
+
+# static JSON files from public/json/database/entity/json
+
+get '/json' => sub {
+       _render_jsonp( shift, [ map { s{public/json/}{}; $_ } glob 'public/json/*' ] );
+};
+
+get '/json/:database' => sub {
+       my $self = shift;
+       my $database = $self->param('database');
+
+       my $status = {
+               document_counts => 0,
+               name => $database,
+       };
+
+       foreach my $path ( glob "public/json/$database/*" ) {
+               my @entities = glob "$path/*";
+               $path =~ s{public/json/$database/}{};
+               $status->{entities}->{$path} = scalar @entities;
+               $status->{document_counts}++;
+       }
+
+       _render_jsonp( $self, $status );
+};
+
+get '/json/:database/:entity' => sub {
+       my $self = shift;
+
+       my $database = $self->param('database');
+       my $entity   = $self->param('entity');
+
+       my $path = "public/json/$database/$entity";
+       die "$path: $!" unless -d $path;
+
+       my $docs;
+       foreach my $path ( sort glob "$path/*" ) {
+               open(my $fh, '<', $path) || die $!;
+               local $/ = undef;
+               my $str = <$fh>;
+               warn "# $path $str";
+               my $data = Mojo::JSON->new->decode( $str );
+               $data->{_key} = $1 if $path =~ m{/([^/]+$)};
+               push @$docs, $data;
+       }
+
+       _render_jsonp( $self, $docs )
+};
+
+get '/_utils/script/(*url)' => sub { $_[0]->proxy_to( "$couchdb/_utils/script/" . $_[0]->param('url') , with_query_params => 1 ) };
+
+app->start;
+__DATA__
+
+@@ index.html.ep
+% layout 'funky';
+Yea baby!
+
+@@ layouts/funky.html.ep
+<!doctype html><html>
+    <head><title>Funky!</title></head>
+    <body><%== content %></body>
+</html>
+
+@@ layouts/angular.html.ep
+<!DOCTYPE HTML>
+<html xmlns:ng="http://angularjs.org">
+  <head>
+   <meta charset="utf-8">
+% my $ANGULAR_JS = $ENV{ANGULAR_JS} || ( -e 'public/angular/build/angular.js' ? '/angular/build/angular.js' : '/angular/src/angular-bootstrap.js' );
+    <script type="text/javascript"
+         src="<%== $ANGULAR_JS %>" ng:autobind></script>
+  </head>
+  <body><%== content %></body>
+</html>