Commit iniziale di eminuxCRM: CRM Rails con pipeline, campagne email e Docker.

Include autenticazione, progetti isolati, mail marketing HTML con SMTP, test A/B e editor WYSIWYG.

Co-authored-by: Cursor <cursoragent@cursor.com>

app/controllers/activities_controller.rb

@@ -0,0 +1,55 @@
+class ActivitiesController < ApplicationController
+  before_action :set_organization, only: %i[create]
+
+  def create
+    @activity = @organization.activities.build(activity_params)
+    @activity.user = current_user
+    @activity.happened_at ||= Time.current
+
+    if @activity.save
+      maybe_update_pipeline_from_activity!
+      redirect_to @organization, notice: "Attività registrata."
+    else
+      redirect_to @organization, alert: @activity.errors.full_messages.to_sentence
+    end
+  end
+
+  private
+
+  def set_organization
+    @organization = Organization.find(params[:organization_id])
+  end
+
+  def activity_params
+    params.require(:activity).permit(
+      :activity_type, :subject, :description, :happened_at, :contact_id, :opportunity_id
+    )
+  end
+
+  def maybe_update_pipeline_from_activity!
+    opportunity = @activity.opportunity || @organization.opportunities.open_stage.order(updated_at: :desc).first
+    return unless opportunity
+
+    stage_map = {
+      "email_sent" => "contacted",
+      "email_received" => "replied",
+      "call" => "contacted",
+      "demo" => "demo_trial",
+      "trial_started" => "demo_trial",
+      "first_use" => "first_use",
+      "proposal_sent" => "proposal",
+      "won" => "won",
+      "lost" => "lost"
+    }
+    target = stage_map[@activity.activity_type]
+    return unless target
+    return if opportunity.won? || opportunity.lost?
+    return if Catalog::PIPELINE_ORDER.index(opportunity.pipeline_stage).to_i >= Catalog::PIPELINE_ORDER.index(target).to_i
+
+    attrs = { pipeline_stage: target }
+    if target == "lost"
+      attrs[:lost_reason] = params[:lost_reason].presence || "other"
+    end
+    opportunity.move_to_stage!(target, lost_reason: attrs[:lost_reason], user: current_user)
+  end
+end