Add practice for lesson 9 (fs#92)

* add practice

* remove bang

app/interactors/projects/destroy.rb

@@ -4,8 +4,18 @@ class Destroy
 
     delegate :project, to: :context
 
+    before do
+      context.users = project.users
+    end
+
     def call
       project.destroy
     end
+
+    after do
+      context.users.each do |user|
+        ProjectMailer.project_destroyed(user).deliver_later
+      end
+    end
   end
 end

app/interactors/projects/update.rb

@@ -7,5 +7,11 @@ class Update
     def call
       context.fail!(error: "Invalid data") unless project.update(project_params)
     end
+
+    after do
+      project.users.each do |user|
+        ProjectMailer.project_updated(project, user).deliver_later
+      end
+    end
   end
 end

app/interactors/tasks/create_default.rb

@@ -0,0 +1,30 @@
+module Tasks
+  class CreateDefault
+    include Interactor
+
+    delegate :project_id, to: :context
+
+    def call
+      context.fail!(error: "Invalid data") unless Task.create(task_params)
+    end
+
+    private
+
+    def task_params
+      [
+        {
+          project_id: project_id,
+          name: "АНЖУМАНИЯ",
+          status: :unstarted,
+          deadline_at: 1.week.from_now
+        },
+        {
+          project_id: project_id,
+          name: "БЕГИТ",
+          status: :unstarted,
+          deadline_at: 1.week.from_now
+        }
+      ]
+    end
+  end
+end

app/jobs/projects/create_default_tasks_job.rb

@@ -5,13 +5,7 @@ class CreateDefaultTasksJob
     sidekiq_options queue: :default, retry: 3
 
     def perform(project_id)
-      project = Project.find(project_id)
-
-      project.tasks.create(
-        [
-          { name: "Your first task", status: :unstarted, deadline_at: 1.week.from_now }
-        ]
-      )
+      Tasks::CreateDefault.call!(project_id: project_id)
     end
   end
 end

app/mailers/project_mailer.rb

@@ -4,4 +4,14 @@ def project_created(project, user)
 
     mail(to: user.email)
   end
+
+  def project_updated(project, user)
+    @project = project
+
+    mail(to: user.email)
+  end
+
+  def project_destroyed(user)
+    mail(to: user.email)
+  end
 end

app/views/project_mailer/project_destroyed.html.erb

@@ -0,0 +1 @@
+<h1>Your project destroyed</h1>

app/views/project_mailer/project_destroyed.txt.erb

@@ -0,0 +1 @@
+Your project destroyed

app/views/project_mailer/project_updated.html.erb

@@ -0,0 +1,6 @@
+<h1>Your project updated</h1>
+<% @project.attributes.each do |attr| %>
+  <ul>
+    <li><%= attr.join(': ') %></li>
+  </ul>
+<% end %>

app/views/project_mailer/project_updated.txt.erb

@@ -0,0 +1,4 @@
+Your project updated
+<% @project.attributes.each |attr| do %>
+  <%= attr.join(': ') %>
+<% end %>