1 files changed, 147 insertions, 0 deletions
diff --git a/src/SMAPI.Toolkit/Framework/ModData/ModDataRecord.cs b/src/SMAPI.Toolkit/Framework/ModData/ModDataRecord.cs
new file mode 100644
index 00000000..794ad2e4
--- /dev/null
+++ b/src/SMAPI.Toolkit/Framework/ModData/ModDataRecord.cs
@@ -0,0 +1,147 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+
+namespace StardewModdingAPI.Toolkit.Framework.ModData
+{
+    /// <summary>The parsed mod metadata from SMAPI's internal mod list.</summary>
+    public class ModDataRecord
+    {
+        /*********
+        ** Accessors
+        *********/
+        /// <summary>The mod's default display name.</summary>
+        public string DisplayName { get; }
+
+        /// <summary>The mod's current unique ID.</summary>
+        public string ID { get; }
+
+        /// <summary>The former mod IDs (if any).</summary>
+        public string[] FormerIDs { get; }
+
+        /// <summary>The mod warnings to suppress, even if they'd normally be shown.</summary>
+        public ModWarning SuppressWarnings { get; set; }
+
+        /// <summary>Maps local versions to a semantic version for update checks.</summary>
+        public IDictionary<string, string> MapLocalVersions { get; }
+
+        /// <summary>Maps remote versions to a semantic version for update checks.</summary>
+        public IDictionary<string, string> MapRemoteVersions { get; }
+
+        /// <summary>The versioned field data.</summary>
+        public ModDataField[] Fields { get; }
+
+
+        /*********
+        ** Public methods
+        *********/
+        /// <summary>Construct an instance.</summary>
+        /// <param name="displayName">The mod's default display name.</param>
+        /// <param name="model">The raw data model.</param>
+        internal ModDataRecord(string displayName, ModDataModel model)
+        {
+            this.DisplayName = displayName;
+            this.ID = model.ID;
+            this.FormerIDs = model.GetFormerIDs().ToArray();
+            this.SuppressWarnings = model.SuppressWarnings;
+            this.MapLocalVersions = new Dictionary<string, string>(model.MapLocalVersions, StringComparer.InvariantCultureIgnoreCase);
+            this.MapRemoteVersions = new Dictionary<string, string>(model.MapRemoteVersions, StringComparer.InvariantCultureIgnoreCase);
+            this.Fields = model.GetFields().ToArray();
+        }
+
+        /// <summary>Get whether the mod has (or previously had) the given ID.</summary>
+        /// <param name="id">The mod ID.</param>
+        public bool HasID(string id)
+        {
+            // try main ID
+            if (this.ID.Equals(id, StringComparison.InvariantCultureIgnoreCase))
+                return true;
+
+            // try former IDs
+            foreach (string formerID in this.FormerIDs)
+            {
+                if (formerID.Equals(id, StringComparison.InvariantCultureIgnoreCase))
+                    return true;
+            }
+
+            return false;
+        }
+
+        /// <summary>Get a semantic local version for update checks.</summary>
+        /// <param name="version">The remote version to normalise.</param>
+        public ISemanticVersion GetLocalVersionForUpdateChecks(ISemanticVersion version)
+        {
+            return this.MapLocalVersions != null && this.MapLocalVersions.TryGetValue(version.ToString(), out string newVersion)
+                ? new SemanticVersion(newVersion)
+                : version;
+        }
+
+        /// <summary>Get a semantic remote version for update checks.</summary>
+        /// <param name="version">The remote version to normalise.</param>
+        public string GetRemoteVersionForUpdateChecks(string version)
+        {
+            // normalise version if possible
+            if (SemanticVersion.TryParse(version, out ISemanticVersion parsed))
+                version = parsed.ToString();
+
+            // fetch remote version
+            return this.MapRemoteVersions != null && this.MapRemoteVersions.TryGetValue(version, out string newVersion)
+                ? newVersion
+                : version;
+        }
+
+        /// <summary>Get the possible mod IDs.</summary>
+        public IEnumerable<string> GetIDs()
+        {
+            return this.FormerIDs
+                .Concat(new[] { this.ID })
+                .Where(p => !string.IsNullOrWhiteSpace(p))
+                .Select(p => p.Trim())
+                .Distinct();
+        }
+
+        /// <summary>Get the default update key for this mod, if any.</summary>
+        public string GetDefaultUpdateKey()
+        {
+            string updateKey = this.Fields.FirstOrDefault(p => p.Key == ModDataFieldKey.UpdateKey && p.IsDefault)?.Value;
+            return !string.IsNullOrWhiteSpace(updateKey)
+                ? updateKey
+                : null;
+        }
+
+        /// <summary>Get a parsed representation of the <see cref="ModDataRecord.Fields"/> which match a given manifest.</summary>
+        /// <param name="manifest">The manifest to match.</param>
+        public ModDataRecordVersionedFields GetVersionedFields(IManifest manifest)
+        {
+            ModDataRecordVersionedFields parsed = new ModDataRecordVersionedFields { DisplayName = this.DisplayName, DataRecord = this };
+            foreach (ModDataField field in this.Fields.Where(field => field.IsMatch(manifest)))
+            {
+                switch (field.Key)
+                {
+                    // update key
+                    case ModDataFieldKey.UpdateKey:
+                        parsed.UpdateKey = field.Value;
+                        break;
+
+                    // alternative URL
+                    case ModDataFieldKey.AlternativeUrl:
+                        parsed.AlternativeUrl = field.Value;
+                        break;
+
+                    // status
+                    case ModDataFieldKey.Status:
+                        parsed.Status = (ModStatus)Enum.Parse(typeof(ModStatus), field.Value, ignoreCase: true);
+                        parsed.StatusUpperVersion = field.UpperVersion;
+                        break;
+
+                    // status reason phrase
+                    case ModDataFieldKey.StatusReasonPhrase:
+                        parsed.StatusReasonPhrase = field.Value;
+                        break;
+                }
+            }
+
+            return parsed;
+        }
+    }
+}