Add service for task creating

app/services/create_my_module.rb

@@ -0,0 +1,119 @@
+# frozen_string_literal: true
+
+class CreateMyModule
+  include Canaid::Helpers::PermissionsHelper
+
+  # config example: {project_id: 5, experiment_name: 'New Experiment', my_module_name: 'New Task'}
+
+  def initialize(user, team, config)
+    @config = config
+    @user = user
+    @team = team
+  end
+
+  def call
+    ActiveRecord::Base.transaction do
+      @project = load_project
+      @experiment = load_experiment
+      raise ActiveRecord::Rollback unless @project && @experiment && can_manage_experiment?(@user, @experiment)
+
+      my_module_params = {
+        x: 0,
+        y: 0,
+        name: @config[:my_module_name] || 'New Task'
+      }
+
+      my_module = @experiment.my_modules.new(my_module_params)
+      new_pos = my_module.get_new_position
+      my_module.x = new_pos[:x]
+      my_module.y = new_pos[:y]
+
+      if my_module.save
+        create_my_module_activity(my_module)
+        return my_module
+      end
+
+      raise ActiveRecord::Rollback
+    end
+  end
+
+  private
+
+  def load_project
+    if @config[:project_id]
+      @team.projects.find_by(id: @config[:project_id])
+    elsif @config[:project_name]
+      return false unless can_create_projects?(@user, @team)
+
+      project_params = {
+        name: @config[:project_name],
+        team: @team,
+        visibility: 'hidden',
+        created_by: @user,
+        last_modified_by: @user
+      }
+
+      project = @team.projects.new(project_params)
+
+      if project.save
+        UserProject.create(role: :owner, user: @user, project: project)
+        create_project_activity(project)
+        project
+      end
+    end
+  end
+
+  def load_experiment
+    return false unless @project
+
+    if @config[:experiment_id]
+      @project.experiments.find_by(id: @config[:experiment_id])
+    elsif @config[:experiment_name]
+      return false unless can_create_experiments?(@user, @project)
+
+      experiment_params = {
+        name: @config[:experiment_name],
+        project: @project,
+        created_by: @user,
+        last_modified_by: @user
+      }
+
+      experiment = @project.experiments.new(experiment_params)
+
+      if experiment.save
+        create_experiment_activity(experiment)
+        experiment
+      end
+    end
+  end
+
+  def create_project_activity(project)
+    Activities::CreateActivityService
+      .call(activity_type: :create_project,
+            owner: @user,
+            subject: project,
+            team: @team,
+            project: project,
+            message_items: { project: project.id })
+  end
+
+  def create_experiment_activity(experiment)
+    Activities::CreateActivityService
+      .call(activity_type: :create_experiment,
+            owner: @user,
+            subject: experiment,
+            team: @team,
+            project: experiment.project,
+            message_items: { experiment: experiment.id })
+  end
+
+  def create_my_module_activity(my_module)
+    Activities::CreateActivityService
+      .call(activity_type: :create_module,
+            owner: @user,
+            team: @team,
+            project: @project,
+            subject: my_module,
+            message_items: { my_module: my_module.id })
+  end
+end