From 553c713a991ef2eaa38320dded283bf9adb093fa Mon Sep 17 00:00:00 2001
From: Rodrigo Souto <rodrigo@colivre.coop.br>
Date: Sat, 23 Apr 2011 02:15:57 -0300
Subject: [PATCH] Controller and fixes

---
 plugins/shopping_cart/controllers/shopping_cart_plugin_profile_controller.rb | 162 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 162 insertions(+), 0 deletions(-)
 create mode 100644 plugins/shopping_cart/controllers/shopping_cart_plugin_profile_controller.rb

diff --git a/plugins/shopping_cart/controllers/shopping_cart_plugin_profile_controller.rb b/plugins/shopping_cart/controllers/shopping_cart_plugin_profile_controller.rb
new file mode 100644
index 0000000..7615491
--- /dev/null
+++ b/plugins/shopping_cart/controllers/shopping_cart_plugin_profile_controller.rb
@@ -0,0 +1,162 @@
+include ActionView::Helpers::NumberHelper
+
+class ShoppingCartPluginProfileController < ProfileController
+
+  def add
+    session[:cart] = { :enterprise_id => profile.id, :items => {} } if session[:cart].nil?
+    if validate_same_enterprise && product = validate_enterprise_has_product(params[:id])
+      session[:cart][:items][product.id] = 0 if session[:cart][:items][product.id].nil?
+      session[:cart][:items][product.id] += 1
+      render :text => {
+        :ok => true,
+        :error => {:code => 0},
+        :products => [{
+          :id => product.id,
+          :name => product.name,
+          :price => get_price(product),
+          :description => product.description,
+          :picture => product.default_image(:minor),
+          :quantity => session[:cart][:items][product.id]
+        }]
+      }.to_json
+    end
+  end
+
+  def remove
+    id = params[:id].to_i
+    if validate_cart_has_product(id)
+      session[:cart][:items].delete(id)
+      session[:cart] = nil if session[:cart][:items].empty?
+      render :text => {
+        :ok => true,
+        :error => {:code => 0},
+        :product_id => id
+      }.to_json
+    end
+  end
+
+  def list
+    if validate_cart_presence
+      products = session[:cart][:items].collect do |id, quantity|
+        product = Product.find(id)
+        { :id => product.id,
+          :name => product.name,
+          :price => get_price(product),
+          :description => product.description,
+          :picture => product.default_image(:minor),
+          :quantity => quantity
+        }
+      end
+      render :text => {
+        :ok => true,
+        :error => {:code => 0},
+        :enterprise => Enterprise.find(session[:cart][:enterprise_id]).identifier,
+        :products => products
+      }.to_json
+    end
+  end
+
+  def update_quantity
+    quantity = params[:quantity].to_i
+    id = params[:id].to_i
+    if validate_cart_presence && validate_cart_has_product(id) && validate_item_quantity(quantity)
+      product = Product.find(id)
+      session[:cart][:items][product.id] = quantity
+      render :text => {
+        :ok => true,
+        :error => {:code => 0},
+        :product_id => id,
+        :quantity => quantity
+      }.to_json
+    end
+  end
+
+  def clean
+    session[:cart] = nil
+    render :text => {
+      :ok => true,
+      :error => {:code => 0}
+    }.to_json
+  end
+
+  private
+
+  def validate_same_enterprise
+    if profile.id != session[:cart][:enterprise_id]
+      render :text => {
+        :ok => false,
+        :error => {
+          :code => 1,
+          :message => _("Can't join items from different enterprises.")
+        }
+      }.to_json
+      return false
+    end
+    true
+  end
+
+  def validate_cart_presence
+    if session[:cart].nil?
+      render :text => {
+        :ok => false,
+        :error => {
+          :code => 2,
+          :message => _("There is no cart.")
+        }
+      }.to_json
+      return false
+    end
+    true
+  end
+
+  def validate_enterprise_has_product(id)
+    begin
+      product = profile.products.find(id)
+    rescue
+      render :text => {
+        :ok => false,
+        :error => {
+          :code => 3,
+          :message => _("This enterprise doesn't have this product.")
+        }
+      }.to_json
+      return nil
+    end
+    product
+  end
+
+  def validate_cart_has_product(id)
+    if !session[:cart][:items].has_key?(id)
+      render :text => {
+        :ok => false,
+        :error => {
+          :code => 4,
+          :message => _("The cart doesn't have this product.")
+        }
+      }.to_json
+      return false
+    end
+    true
+  end
+
+  def validate_item_quantity(quantity)
+    if quantity.to_i < 1
+      render :text => {
+        :ok => false,
+        :error => {
+          :code => 5,
+          :message => _("Invalid quantity.")
+        }
+      }.to_json
+      return false
+    end
+    true
+  end
+
+  def get_price(product)
+    float_to_currency( product.discount ? product.price_with_discount : product.price )
+  end
+
+
+end
+
--
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