IIRR-31(puzzles): Add clone action for puzzles

Implement a clone action in Puzzles::ClonesController to duplicate
existing puzzles. Add a "Clone" button to the archived puzzles table.
Include tests for cloning functionality and authentication checks.

Ref: https://ombulabs.atlassian.net/browse/IIRR-31

Author: fbuys

app/controllers/puzzles/clones_controller.rb

@@ -0,0 +1,13 @@
+class Puzzles::ClonesController < ApplicationController
+  def create
+    original_puzzle = Puzzle.find(params[:puzzle_id])
+    attributes = original_puzzle.attributes.slice("question", "answer", "explanation", "link", "suggested_by")
+    cloned_puzzle = Puzzle.new(attributes.merge(state: params.fetch(:state, "pending")))
+
+    if cloned_puzzle.save
+      redirect_to puzzles_path, notice: "Puzzle cloned. You can now edit the new puzzle."
+    else
+      redirect_to puzzles_path, alert: "Failed to clone puzzle."
+    end
+  end
+end

app/views/puzzles/_puzzles_table.html.erb

@@ -42,6 +42,7 @@
             <%= button_to 'Pending', puzzle_state_path(puzzle, state: :pending), method: :patch, form_class: 'inline-form', class: 'btn pending-btn' %>
           <% elsif actions == :archived %>
             <%= button_to 'Un-Archive', puzzle_state_path(puzzle, state: :pending), method: :patch, form_class: 'inline-form', class: 'btn pending-btn' %>
+            <%= button_to 'Clone', puzzle_clone_path(puzzle, state: :pending), method: :post, form_class: 'inline-form', class: 'btn pending-btn' %>
           <% end %>
         </td>
       </tr>

config/routes.rb

@@ -1,6 +1,7 @@
 Rails.application.routes.draw do
   resources :puzzles, only: [ :index, :edit, :update ] do
     resource :state, only: [ :update ], module: :puzzles
+    resource :clone, only: [ :create ], module: :puzzles
   end
   resources :sessions, only: [ :create, :destroy ]
 

test/controllers/puzzles/clones_controller_test.rb

@@ -0,0 +1,33 @@
+require "test_helper"
+
+class Puzzles::ClonesControllerTest < ActionDispatch::IntegrationTest
+  test "creates a cloned puzzle and redirects to index" do
+    original = puzzles(:one)
+
+    sign_in
+    assert_difference("Puzzle.count", 1) do
+      post puzzle_clone_path(original)
+    end
+
+    cloned = Puzzle.order(:id).last
+    assert_redirected_to puzzles_path
+
+    assert_equal original.question, cloned.question
+    assert_equal original.answer, cloned.answer
+    assert_equal original.explanation, cloned.explanation
+    assert_equal original.link, cloned.link
+    assert_equal original.suggested_by, cloned.suggested_by
+    assert_nil cloned.sent_at
+    assert_equal "pending", cloned.state
+  end
+
+  test "does not allow unauthenticated users to create a clone" do
+    original = puzzles(:one)
+
+    assert_no_difference("Puzzle.count") do
+      post puzzle_clone_path(original)
+    end
+
+    assert_dom "p", "Log in to access the Ruby or Rails admin panel."
+  end
+end