From 4476246048abce80113e57decfa96360645939c5 Mon Sep 17 00:00:00 2001
From: Thomas Bloor <tom@tbsliver.me>
Date: Tue, 20 Mar 2018 19:24:48 +0000
Subject: [PATCH] Added initial Minion support and example test job

---
 .gitignore                                   |  2 ++
 README.md                                    | 36 +++++++++++++++++++
 cpanfile                                     |  4 +++
 lib/Pear/LocalLoop.pm                        |  7 ++++
 lib/Pear/LocalLoop/Plugin/Minion.pm          | 37 ++++++++++++++++++++
 lib/Pear/LocalLoop/Plugin/Minion/Job/test.pm | 15 ++++++++
 6 files changed, 101 insertions(+)
 create mode 100644 lib/Pear/LocalLoop/Plugin/Minion.pm
 create mode 100644 lib/Pear/LocalLoop/Plugin/Minion/Job/test.pm

diff --git a/.gitignore b/.gitignore
index 2ecdfe1..027fb18 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,6 +2,8 @@
 myapp.conf
 hypnotoad.pid
 *.db
+*.db-wal
+*.db-shm
 *~
 /images
 *.swp
diff --git a/README.md b/README.md
index 61360c8..fc470dc 100644
--- a/README.md
+++ b/README.md
@@ -22,3 +22,39 @@ cpanm --installdeps . --with-feature postgres
 PEAR_TEST_PG=1 prove -lr
 ```
 
+# Minion
+
+to set up minion support, you will need to create a database and user for
+minion to connect to. In production his should be a PostgreSQL database,
+however an SQLite db can be used in testing.
+
+To use the SQLite version, run the following commands:
+
+```
+cpanm --installdeps --with-feature sqlite .
+```
+
+And then add the following to your configuration file:
+
+```
+  minion => {
+    SQLite => 'sqlite:minion.db',
+  },
+```
+
+This will then use an SQLite db for the minion backend, at minion.db
+
+
+## Example PostgreSQL setup
+
+```
+# Example commands - probably not the best ones
+# TODO come back and improve these with proper ownership and DDL rights
+sudo -u postgres createuser minion
+sudo -u postgres createdb localloop_minion
+sudo -u postgres psql
+psql=# alter user minion with encrypted password 'abc123';
+psql=# grant all privileges on database localloop_minion to minion;
+```
+
+
diff --git a/cpanfile b/cpanfile
index 5ef4b1f..3d853b6 100644
--- a/cpanfile
+++ b/cpanfile
@@ -39,6 +39,10 @@ feature 'postgres', 'PostgreSQL Support' => sub {
   requires 'Test::PostgreSQL';
 };
 
+feature 'sqlite', 'SQLite Support' => sub {
+  requires 'Minion::Backend::SQLite';
+};
+
 feature 'codepoint-open', 'Code Point Open manipulation' => sub {
   requires 'Geo::UK::Postcode::CodePointOpen';
 };
diff --git a/lib/Pear/LocalLoop.pm b/lib/Pear/LocalLoop.pm
index 5bd5e26..be29224 100644
--- a/lib/Pear/LocalLoop.pm
+++ b/lib/Pear/LocalLoop.pm
@@ -42,6 +42,7 @@ sub startup {
   $self->plugin('Pear::LocalLoop::Plugin::Currency');
   $self->plugin('Pear::LocalLoop::Plugin::Postcodes');
   $self->plugin('Pear::LocalLoop::Plugin::TemplateHelpers');
+  $self->plugin('Pear::LocalLoop::Plugin::Minion');
 
   $self->plugin('Authentication' => {
     'load_user' => sub {
@@ -187,6 +188,12 @@ sub startup {
 
   my $admin_routes = $r->under('/admin')->to('admin#under');
 
+  if ( defined $config->{minion} ) {
+    $self->plugin( 'Minion::Admin' => {
+      return_to => '/admin/home',
+      route => $admin_routes->any('/minion'),
+    } );
+  }
   $admin_routes->get('/home')->to('admin#home');
 
   $admin_routes->get('/tokens')->to('admin-tokens#index');
diff --git a/lib/Pear/LocalLoop/Plugin/Minion.pm b/lib/Pear/LocalLoop/Plugin/Minion.pm
new file mode 100644
index 0000000..50f7abd
--- /dev/null
+++ b/lib/Pear/LocalLoop/Plugin/Minion.pm
@@ -0,0 +1,37 @@
+package Pear::LocalLoop::Plugin::Minion;
+use Mojo::Base 'Mojolicious::Plugin';
+
+use Mojo::Loader qw/ find_modules load_class /;
+
+sub register {
+  my ( $plugin, $app, $cong ) = @_;
+
+  if ( defined $app->config->{minion} ) {
+    $app->log->debug('Setting up Minion');
+    $app->plugin('Minion' => $app->config->{minion} );
+
+    my $job_namespace = __PACKAGE__ . '::Job';
+    my @modules = find_modules $job_namespace;
+    for my $package ( @modules ) {
+      my ( $job ) = $package =~ /${job_namespace}::(.*)$/;
+      $app->log->debug( $package );
+      $app->log->debug( $job );
+      load_class $package;
+      $app->minion->add_task(
+        $job => sub {
+          my ( $job, @args ) = @_;
+          my $job_runner = $package->new(
+            job => $job,
+          );
+          $job_runner->run( @args );
+        }
+      );
+    }
+    $app->minion->enqueue('test' => [ 'test arg 1', 'test_arg 2' ] );
+  } else {
+    $app->log->debug('No Minion Config');
+  }
+
+}
+
+1;
diff --git a/lib/Pear/LocalLoop/Plugin/Minion/Job/test.pm b/lib/Pear/LocalLoop/Plugin/Minion/Job/test.pm
new file mode 100644
index 0000000..c01dd3b
--- /dev/null
+++ b/lib/Pear/LocalLoop/Plugin/Minion/Job/test.pm
@@ -0,0 +1,15 @@
+package Pear::LocalLoop::Plugin::Minion::Job::test;
+use Mojo::Base -base;
+
+has [ qw/ job / ];
+
+sub run {
+  my ( $self, @args ) = @_;
+
+  $self->job->app->log->debug( 'Testing Job' );
+  for my $arg ( @args ) {
+    $self->job->app->log->debug( $arg );
+  }
+}
+
+1;