Create services for busting pages, tags, events, and podcasts (#11812)

* Create bust_page service and spec

* Specify spec with .once

* Create bust_tag service and spec

* Create bust_event service and spec

* Create bust_podcast service and spec

app/services/edge_cache/bust_events.rb

@@ -0,0 +1,8 @@
+module EdgeCache
+  class BustEvents < Bust
+    def self.call
+      bust("/events")
+      bust("/events?i=i")
+    end
+  end
+end

app/services/edge_cache/bust_page.rb

@@ -0,0 +1,12 @@
+module EdgeCache
+  class BustPage < Bust
+    def self.call(slug)
+      return unless slug
+
+      bust("/page/#{slug}")
+      bust("/page/#{slug}?i=i")
+      bust("/#{slug}")
+      bust("/#{slug}?i=i")
+    end
+  end
+end

app/services/edge_cache/bust_podcast.rb

@@ -0,0 +1,9 @@
+module EdgeCache
+  class BustPodcast < Bust
+    def self.call(path)
+      return unless path
+
+      bust("/#{path}")
+    end
+  end
+end

app/services/edge_cache/bust_tag.rb

@@ -0,0 +1,15 @@
+module EdgeCache
+  class BustTag < Bust
+    def self.call(tag)
+      return unless tag
+
+      tag.purge
+
+      bust("/t/#{tag.name}")
+      bust("/t/#{tag.name}?i=i")
+      bust("/t/#{tag.name}/?i=i")
+      bust("/t/#{tag.name}/")
+      bust("/tags")
+    end
+  end
+end

spec/services/edge_cache/bust_events_spec.rb

@@ -0,0 +1,24 @@
+require "rails_helper"
+
+RSpec.describe EdgeCache::BustEvents, type: :service do
+  let(:paths) do
+    [
+      "/events",
+      "/events?i=i",
+    ]
+  end
+
+  before do
+    paths.each do |path|
+      allow(described_class).to receive(:bust).with(path).once
+    end
+  end
+
+  it "busts the cache" do
+    described_class.call
+
+    paths.each do |path|
+      expect(described_class).to have_received(:bust).with(path).once
+    end
+  end
+end

spec/services/edge_cache/bust_page_spec.rb

@@ -0,0 +1,27 @@
+require "rails_helper"
+
+RSpec.describe EdgeCache::BustPage, type: :service do
+  let(:slug) { "slug" }
+  let(:paths) do
+    [
+      "/page/#{slug}",
+      "/page/#{slug}?i=i",
+      "/#{slug}",
+      "/#{slug}?i=i",
+    ]
+  end
+
+  before do
+    paths.each do |path|
+      allow(described_class).to receive(:bust).with(path).once
+    end
+  end
+
+  it "busts the cache" do
+    described_class.call(slug)
+
+    paths.each do |path|
+      expect(described_class).to have_received(:bust).with(path).once
+    end
+  end
+end

spec/services/edge_cache/bust_podcast_spec.rb

@@ -0,0 +1,24 @@
+require "rails_helper"
+
+RSpec.describe EdgeCache::BustPodcast, type: :service do
+  let(:podcast_path) { "podcast_path" }
+  let(:paths) do
+    [
+      "/#{podcast_path}",
+    ]
+  end
+
+  before do
+    paths.each do |path|
+      allow(described_class).to receive(:bust).with(path).once
+    end
+  end
+
+  it "busts the cache" do
+    described_class.call(podcast_path)
+
+    paths.each do |path|
+      expect(described_class).to have_received(:bust).with(path).once
+    end
+  end
+end

spec/services/edge_cache/bust_tag_spec.rb

@@ -0,0 +1,32 @@
+require "rails_helper"
+
+RSpec.describe EdgeCache::BustTag, type: :service do
+  let(:tag) { create(:tag) }
+  let(:paths) do
+    [
+      "/t/#{tag.name}",
+      "/t/#{tag.name}?i=i",
+      "/t/#{tag.name}/?i=i",
+      "/t/#{tag.name}/",
+      "/tags",
+    ]
+  end
+
+  before do
+    paths.each do |path|
+      allow(described_class).to receive(:bust).with(path).once
+    end
+
+    allow(tag).to receive(:purge).once
+  end
+
+  it "busts the cache" do
+    described_class.call(tag)
+
+    paths.each do |path|
+      expect(described_class).to have_received(:bust).with(path).once
+    end
+
+    expect(tag).to have_received(:purge).once
+  end
+end