/// <summary>
 /// Gets the lowest total price from all the available strategies.
 /// </summary>
 /// <param name="sale"></param>
 /// <returns></returns>
 public override decimal GetTotal(Sale sale)
 {
     return(PricingStrategies.Select(strategy => strategy.GetTotal(sale)).Concat(new[] { decimal.MaxValue }).Min());
 }
        private void LoadOnlineStrategy(StorageFile listsSourceFile)
        {
            SlideHeaders.Clear();
            Websites.Clear();
            Strengths.Clear();
            Categories.Clear();
            ProductSources.Clear();
            if (!listsSourceFile.ExistsLocal())
            {
                return;
            }
            var document = new XmlDocument();

            document.Load(listsSourceFile.LocalPath);

            var node = document.SelectSingleNode(@"/OnlineStrategy");

            if (node == null)
            {
                return;
            }
            foreach (XmlNode childeNode in node.ChildNodes)
            {
                switch (childeNode.Name)
                {
                case "Header":
                    foreach (XmlAttribute attribute in childeNode.Attributes)
                    {
                        switch (attribute.Name)
                        {
                        case "Value":
                            if (!string.IsNullOrEmpty(attribute.Value) && !SlideHeaders.Contains(attribute.Value))
                            {
                                SlideHeaders.Add(attribute.Value);
                            }
                            break;
                        }
                    }
                    break;

                case "Site":
                    foreach (XmlAttribute attribute in childeNode.Attributes)
                    {
                        switch (attribute.Name)
                        {
                        case "Value":
                            if (!string.IsNullOrEmpty(attribute.Value) && !Websites.Contains(attribute.Value))
                            {
                                Websites.Add(attribute.Value);
                            }
                            break;
                        }
                    }
                    break;

                case "Strength":
                    foreach (XmlAttribute attribute in childeNode.Attributes)
                    {
                        switch (attribute.Name)
                        {
                        case "Value":
                            if (!string.IsNullOrEmpty(attribute.Value) && !Strengths.Contains(attribute.Value))
                            {
                                Strengths.Add(attribute.Value);
                            }
                            break;
                        }
                    }
                    break;

                case "PricingStrategy":
                    foreach (XmlAttribute attribute in childeNode.Attributes)
                    {
                        switch (attribute.Name)
                        {
                        case "Value":
                            if (!string.IsNullOrEmpty(attribute.Value) && !PricingStrategies.Contains(attribute.Value))
                            {
                                PricingStrategies.Add(attribute.Value);
                            }
                            break;
                        }
                    }
                    break;

                case "PositionColumn":
                    foreach (XmlAttribute attribute in childeNode.Attributes)
                    {
                        switch (attribute.Name)
                        {
                        case "Value":
                            if (!string.IsNullOrEmpty(attribute.Value) && !ColumnPositions.Contains(attribute.Value))
                            {
                                ColumnPositions.Add(attribute.Value);
                            }
                            break;
                        }
                    }
                    break;

                case "DefaultFormula":
                    switch (childeNode.InnerText.ToLower().Trim())
                    {
                    case "cpm":
                        DefaultFormula = FormulaType.CPM;
                        break;

                    case "investment":
                        DefaultFormula = FormulaType.Investment;
                        break;

                    case "impressions":
                        DefaultFormula = FormulaType.Impressions;
                        break;
                    }
                    break;

                case "LockedMode":
                {
                    bool temp;
                    if (Boolean.TryParse(childeNode.InnerText, out temp))
                    {
                        LockedMode = temp;
                    }
                }
                break;

                case "SpecialLinksEnable":
                {
                    bool temp;
                    if (Boolean.TryParse(childeNode.InnerText, out temp))
                    {
                        SpecialLinksEnable = temp;
                    }
                }
                break;

                case "SpecialButtonsGroupName":
                    SpecialLinksGroupName = childeNode.InnerText;
                    break;

                case "SpecialButtonsGroupLogo":
                    if (string.IsNullOrEmpty(childeNode.InnerText))
                    {
                        SpecialLinksGroupLogo = null;
                    }
                    else
                    {
                        SpecialLinksGroupLogo = new Bitmap(new MemoryStream(Convert.FromBase64String(childeNode.InnerText)));
                    }
                    break;

                case "Browser":
                    SpecialLinkBrowsers.Add(childeNode.InnerText);
                    break;

                case "SpecialButton":
                    var specialLinkButton = new SpecialLinkButton();
                    GetSpecialButton(childeNode, ref specialLinkButton);
                    if (!String.IsNullOrEmpty(specialLinkButton.Name) && !String.IsNullOrEmpty(specialLinkButton.Type) && specialLinkButton.Paths.Any())
                    {
                        SpecialLinkButtons.Add(specialLinkButton);
                    }
                    break;

                case "Targeting":
                {
                    var productInfo = new ProductInfo {
                        Type = ProductInfoType.Targeting
                    };
                    productInfo.Deserialize(childeNode);
                    TargetingRecods.Add(productInfo);
                }
                break;

                case "RichMedia":
                {
                    var productInfo = new ProductInfo {
                        Type = ProductInfoType.RichMedia
                    };
                    productInfo.Deserialize(childeNode);
                    RichMediaRecods.Add(productInfo);
                }
                break;

                case "Category":
                    var category = new Category();
                    GetCategories(childeNode, ref category);
                    if (!string.IsNullOrEmpty(category.Name))
                    {
                        Categories.Add(category);
                    }
                    break;

                case "Product":
                    var productSource = new ProductSource();
                    GetProductProperties(childeNode, ref productSource);
                    if (!string.IsNullOrEmpty(productSource.Name))
                    {
                        ProductSources.Add(productSource);
                    }
                    break;

                case "Status":
                    foreach (XmlAttribute attribute in childeNode.Attributes)
                    {
                        switch (attribute.Name)
                        {
                        case "Value":
                            if (!Statuses.Contains(attribute.Value))
                            {
                                Statuses.Add(attribute.Value);
                            }
                            break;
                        }
                    }
                    break;

                case "DefaultHomeViewSettings":
                    DefaultHomeViewSettings.Deserialize(childeNode);
                    break;

                case "DefaultDigitalProductSettings":
                    DefaultDigitalProductSettings.Deserialize(childeNode);
                    break;

                case "DefaultDigitalProductPackageSettings":
                    DefaultDigitalProductPackageSettings.Deserialize(childeNode);
                    break;

                case "DefaultDigitalStandalonePackageSettings":
                    DefaultDigitalStandalonePackageSettings.Deserialize(childeNode);
                    break;

                case "DigitalControlsConfiguration":
                    DefaultControlsConfiguration =
                        JsonConvert.DeserializeObject <DigitalControlsConfiguration>(Encoding.Unicode.GetString(Convert.FromBase64String(childeNode.InnerText)), new JsonImageConverter());
                    break;
                }
            }
        }