1 files changed, 51 insertions, 0 deletions
diff --git a/src/SMAPI.Web/Framework/ModRepositories/BaseRepository.cs b/src/SMAPI.Web/Framework/ModRepositories/BaseRepository.cs
new file mode 100644
index 00000000..d98acd89
--- /dev/null
+++ b/src/SMAPI.Web/Framework/ModRepositories/BaseRepository.cs
@@ -0,0 +1,51 @@
+using System.Text.RegularExpressions;
+using System.Threading.Tasks;
+using StardewModdingAPI.Models;
+
+namespace StardewModdingAPI.Web.Framework.ModRepositories
+{
+    internal abstract class RepositoryBase : IModRepository
+    {
+        /*********
+        ** Accessors
+        *********/
+        /// <summary>The unique key for this vendor.</summary>
+        public string VendorKey { get; }
+
+
+        /*********
+        ** Public methods
+        *********/
+        /// <summary>Performs application-defined tasks associated with freeing, releasing, or resetting unmanaged resources.</summary>
+        public abstract void Dispose();
+
+        /// <summary>Get metadata about a mod in the repository.</summary>
+        /// <param name="id">The mod ID in this repository.</param>
+        public abstract Task<ModInfoModel> GetModInfoAsync(string id);
+
+
+        /*********
+        ** Protected methods
+        *********/
+        /// <summary>Construct an instance.</summary>
+        /// <param name="vendorKey">The unique key for this vendor.</param>
+        protected RepositoryBase(string vendorKey)
+        {
+            this.VendorKey = vendorKey;
+        }
+
+        /// <summary>Normalise a version string.</summary>
+        /// <param name="version">The version to normalise.</param>
+        protected string NormaliseVersion(string version)
+        {
+            if (string.IsNullOrWhiteSpace(version))
+                return null;
+
+            version = version.Trim();
+            if (Regex.IsMatch(version, @"^v\d", RegexOptions.CultureInvariant | RegexOptions.IgnoreCase)) // common version prefix
+                version = version.Substring(1);
+
+            return version;
+        }
+    }
+}