add a quick order bar

README.md

@@ -41,7 +41,18 @@ See the `Makefile` for all commands.
 1. Install npm packages: `npm i`
 2. Initialize and migrate the db: `bundle exec rails db:migrate`
 3. Seed the db: `bundle exec rails db:seed`
-5. Start Tap: `./bin/dev`
+5. Start Tap: `./bin/dev` (or run `npm run build:js`, then `bundle exec rails s`)
+
+#### Tests
+
+Run `bundle exec rake`\
+or if that doesn't work try `bundle exec rspec`?
+
+#### Linter (rubocop)
+- Run `bundle exec rubocop` to lint
+- To autocorrect most offences
+  - safely : `bundle exec rubocop -a`
+  - unsafely : `bundle exec rubocop -A`
 
 ## Deploy to production
 

app/controllers/users_controller.rb

@@ -101,6 +101,51 @@ def order_dagschotel
     end
   end
 
+  # quickly order a single product
+  # POST /users/{username}/quickorder
+  # takes the product_id as payload
+  def quick_order
+    product = Product.find_by(id: params[:product_id])
+
+    unless product
+      flash.now[:error] = "Product not found!"
+      respond_to do |format|
+        format.html { redirect_back_or_to(root_path) }
+        format.json do
+          render json: { message: "Quick order failed for #{@user.name}. Product not found." }, status: :bad_request
+        end
+      end
+      return
+    end
+
+    order = @user.orders.build
+    order.order_items.build(count: 1, product: product)
+    authorize! :create, order
+
+    if order.save
+      flash[:success] = "#{product.name} has been ordered!"
+
+      flash[:successful_order_items] = order.order_items.map do |oi|
+        { product: oi.product, count: oi.count }
+      end
+
+      respond_to do |format|
+        format.html { redirect_back_or_to(root_path) }
+        format.json { render json: { message: "Quick order succeeded for #{@user.name}." }, status: :ok }
+      end
+    else
+      flash[:error] = order.valid? ? "Something went wrong! Please try again." : order.errors.full_messages.join(". ")
+      respond_to do |format|
+        format.html { redirect_back_or_to(root_path) }
+        format.json do
+          render json: {
+            message: order.errors.full_messages.join(". ")
+          }, status: :unprocessable_content
+        end
+      end
+    end
+  end
+
   def reset_key
     @user.generate_key!
     redirect_to @user

app/models/user.rb

@@ -107,6 +107,15 @@ def balance
     bal - total_pending
   end
 
+  def last_ordered_products(amount = 5)
+    orders.includes(:products)
+          .order(created_at: :desc)
+          .limit(amount)
+          .flat_map(&:products)
+          .uniq
+          .first(amount)
+  end
+
   # Static Users
 
   def self.guest

app/views/users/_quick_order.html.erb

@@ -0,0 +1,19 @@
+<div class="columns is-multiline is-justify-content-space-between">
+    <div class="column">
+        <div class="card">
+            <div class="card-content">
+                <h1 class="title is-size-4">Quick orders</h1>
+                <div style="display: flex; justify-content: space-evenly">
+                    <% products.each do |product| %>
+                        <%= button_to quick_user_path(@user), 
+                                        method: :post, 
+                                        params: { product_id: product.id },
+                                        class: "button button-flex is-fullwidth is-primary is-light" do %>
+                            <%= image_tag product.avatar.url, title: product.name %>
+                        <% end %>
+                    <% end %>
+                </div>
+            </div>
+        </div>
+    </div>
+</div>

app/views/users/show.html.erb

@@ -8,6 +8,12 @@
   <div class="column is-12-mobile is-7-tablet is-8-desktop is-9-widescreen">
     <!-- Statistics -->
     <%= render "stats_cards" %>
+
+    <!-- Quick orders -->
+    <% recent_products = @user.last_ordered_products %>
+    <% if recent_products.any? %>
+      <%= render "quick_order", products: recent_products %>
+    <% end %>
 
     <!-- Orders -->
     <%= render "orders" %>

config/routes.rb

@@ -42,6 +42,8 @@
       # Legacy endpoints, required for Tappb
       get "quickpay" => "users#order_dagschotel"
 
+      post "quick" => "users#quick_order"
+
       # Change the user's API key.
       post :reset_key
     end

spec/controllers/users_controller_spec.rb

@@ -187,4 +187,47 @@
     #   end
     # end
   end
+
+  # quick order
+  describe "POST quick_order" do
+    let(:product) { create(:product, stock: 20) }
+
+    before do
+      # Mock the balance check (Tab API)
+      balance = 12_345
+      stub_request(:get, /.*/).to_return(status: 200, body: JSON.dump({ balance: balance }))
+    end
+
+    context "with a valid product_id" do
+      it "creates a new order" do
+        expect do
+          post :quick_order, params: { id: user.id, product_id: product.id }
+        end.to change { user.reload.orders_count }.by(1)
+      end
+
+      describe "the created order" do
+        before do
+          post :quick_order, params: { id: user.id, product_id: product.id }
+        end
+
+        let(:order) { user.orders.last }
+
+        it "contains exactly 1 order item" do
+          expect(order.order_items.size).to eq 1
+        end
+
+        it "contains the correct product" do
+          expect(order.order_items.first.product).to eq product
+        end
+      end
+    end
+
+    context "with an invalid product_id" do
+      it "does not create an order" do
+        expect do
+          post :quick_order, params: { id: user.id, product_id: 99_999 }
+        end.not_to change(Order, :count)
+      end
+    end
+  end
 end