Made progress on implementing some shops.

Performed some folder restructuring as well.

Props-Modules/Props.Shop/Framework/Filters.cs

@@ -0,0 +1,85 @@
+using System;
+
+namespace Props.Shop.Framework
+{
+    public class Filters
+    {
+        public Currency Currency { get; set; } = Currency.CAD;
+        public float MinRating { get; set; } = 0.8f;
+        public bool KeepUnrated { get; set; } = true;
+        public bool EnableUpperPrice { get; set; } = false;
+        private int upperPrice;
+
+        public int UpperPrice
+        {
+            get
+            {
+                return upperPrice;
+            }
+            set
+            {
+                if (EnableUpperPrice) upperPrice = value;
+            }
+        }
+        public int LowerPrice { get; set; }
+        public int MinPurchases { get; set; }
+        public bool KeepUnknownPurchaseCount { get; set; } = true;
+        public int MinReviews { get; set; }
+        public bool KeepUnknownRatingCount { get; set; } = true;
+        public bool EnableMaxShippingFee { get; set; }
+        private int maxShippingFee;
+
+        public int MaxShippingFee
+        {
+            get
+            {
+                return maxShippingFee;
+            }
+            set
+            {
+                if (EnableMaxShippingFee) maxShippingFee = value;
+            }
+        }
+        public bool KeepUnknownShipping { get; set; } = true;
+
+        public override bool Equals(object obj)
+        {
+            if (obj == null || GetType() != obj.GetType())
+            {
+                return false;
+            }
+            Filters other = (Filters)obj;
+            return
+                Currency == other.Currency &&
+                MinRating == other.MinRating &&
+                KeepUnrated == other.KeepUnrated &&
+                EnableUpperPrice == other.EnableUpperPrice &&
+                UpperPrice == other.UpperPrice &&
+                LowerPrice == other.LowerPrice &&
+                MinPurchases == other.MinPurchases &&
+                KeepUnknownPurchaseCount == other.KeepUnknownPurchaseCount &&
+                MinReviews == other.MinReviews &&
+                KeepUnknownRatingCount == other.KeepUnknownRatingCount &&
+                EnableMaxShippingFee == other.EnableMaxShippingFee &&
+                MaxShippingFee == other.MaxShippingFee &&
+                KeepUnknownShipping == other.KeepUnknownShipping;
+
+        }
+
+        public override int GetHashCode()
+        {
+            return HashCode.Combine(
+                Currency,
+                MinRating,
+                UpperPrice,
+                LowerPrice,
+                MinPurchases,
+                MinReviews,
+                MaxShippingFee);
+        }
+        public Filters Copy()
+        {
+            return (Filters)this.MemberwiseClone();
+        }
+    }
+}

Props-Modules/Props.Shop/Framework/IOption.cs

@@ -0,0 +1,14 @@
+using System;
+
+namespace Props.Shop.Framework
+{
+    public interface IOption
+    {
+        public string Name { get; }
+        public string Description { get; }
+        public bool Required { get; }
+        public string GetValue();
+        public bool SetValue(string value);
+        public Type Type { get; }
+    }
+}

Props-Modules/Props.Shop/Framework/IShop.cs

@@ -6,14 +6,16 @@ using System.Threading.Tasks;
 
 namespace Props.Shop.Framework
 {
-    public interface IShop : IAsyncEnumerable<ProductListing>, IDisposable
+    public interface IShop : IDisposable
     {
         string ShopName { get; }
         string ShopDescription { get; }
         string ShopModuleAuthor { get; }
 
-        public void SetupSession(string query, Currency currency);
+        public IAsyncEnumerable<ProductListing> Search(string query, Filters filters);
 
-        void Initialize();
+        IEnumerable<IOption> Initialize(byte[] data);
+        public SupportedFeatures SupportedFeatures { get; }
+        public byte[] GetDataForPersistence();
     }
 }

Props-Modules/Props.Shop/Framework/ProductListing.cs

@@ -12,5 +12,6 @@ namespace Props.Shop.Framework
         public int? PurchaseCount { get; set; }
         public int? ReviewCount { get; set; }
         public bool ConvertedPrices { get; set; }
+        public bool? InStock { get; set; }
     }
 }

Props-Modules/Props.Shop/Framework/SupportedFeatures.cs

@@ -0,0 +1,20 @@
+namespace Props.Shop.Framework
+{
+    public class SupportedFeatures
+    {
+        bool Shipping { get; }
+        bool Rating { get; }
+        bool ReviewCount { get; }
+        bool PurchaseCount { get; }
+        bool InStock { get; }
+
+        public SupportedFeatures(bool shipping, bool rating, bool reviewCount, bool purchaseCount, bool inStock)
+        {
+            this.Shipping = shipping;
+            this.Rating = rating;
+            this.ReviewCount = reviewCount;
+            this.PurchaseCount = purchaseCount;
+            this.InStock = inStock;
+        }
+    }
+}