Track steps the user has completed, nag them to finish it.

lib/wizard.rb

@@ -1,12 +1,14 @@
 require_dependency 'wizard/step'
 require_dependency 'wizard/field'
+require_dependency 'wizard/step_updater'
 
 class Wizard
-  attr_reader :start, :steps, :user
+  attr_reader :steps, :user
 
   def initialize(user)
     @steps = []
     @user = user
+    @first_step = nil
   end
 
   def create_step(step_name)
@@ -24,7 +26,7 @@ class Wizard
 
     # If it's the first step
     if @steps.size == 1
-      @start = step
+      @first_step = step
       step.index = 0
     elsif last_step.present?
       last_step.next = step
@@ -33,9 +35,55 @@ class Wizard
     end
   end
 
+  def steps_with_fields
+    @steps_with_fields ||= @steps.select {|s| s.has_fields? }
+  end
+
+  def start
+    completed = UserHistory.where(
+      action: UserHistory.actions[:wizard_step],
+      context: steps_with_fields.map(&:id)
+    ).uniq.pluck(:context)
+
+    # First uncompleted step
+    steps_with_fields.each do |s|
+      return s unless completed.include?(s.id)
+    end
+
+    @first_step
+  end
+
   def create_updater(step_id, fields)
     step = @steps.find {|s| s.id == step_id.dasherize}
     Wizard::StepUpdater.new(@user, step, fields)
   end
 
+  def completed?
+    completed_steps?(steps_with_fields.map(&:id))
+  end
+
+  def completed_steps?(steps)
+    steps = [steps].flatten.uniq
+
+    completed = UserHistory.where(
+      action: UserHistory.actions[:wizard_step],
+      context: steps
+    ).distinct.order(:context).pluck(:context)
+
+    steps.sort == completed
+  end
+
+  def requires_completion?
+    return false unless SiteSetting.wizard_enabled?
+
+    admins = User.where("admin = true and id <> ?", Discourse.system_user.id).order(:created_at)
+
+    # In development mode all admins are developers, so the logic is a bit screwy:
+    unless Rails.env.development?
+      admins = admins.select {|a| !Guardian.new(a).is_developer? }
+    end
+
+    admins.present? && admins.first == @user && !completed? && (Topic.count < 15)
+  end
+
 end