Move data and data loading to plugin libraries.

PkmnLib.Dynamic/Libraries/DataLoaders/NatureDataLoader.cs

@@ -0,0 +1,57 @@
+using PkmnLib.Static;
+using PkmnLib.Static.Libraries;
+
+namespace PkmnLib.Dynamic.Libraries.DataLoaders;
+
+public static class NatureDataLoader
+{
+    private static readonly char[] CommonCsvDelimiters = ['|', ','];
+
+    public static NatureLibrary LoadNatureLibrary(Stream stream)
+    {
+        var library = new NatureLibrary();
+
+        using var reader = new StreamReader(stream);
+        var header = reader.ReadLine();
+        if (header == null)
+            throw new InvalidDataException("Type data is empty.");
+        var delimiter = CommonCsvDelimiters.FirstOrDefault(header.Contains);
+        if (delimiter == default)
+            throw new InvalidDataException("No valid delimiter found in type data.");
+
+        while (!reader.EndOfStream)
+        {
+            var line = reader.ReadLine();
+            if (line == null)
+                break;
+            var values = line.Split(delimiter)!;
+            var nature = values[0];
+            var increasedStat = values[1];
+            var decreasedStat = values[2];
+
+            var increasedModifier = 1.1f;
+            var decreasedModifier = 0.9f;
+
+            if (increasedStat == string.Empty)
+            {
+                increasedStat = "Hp";
+                increasedModifier = 1.0f;
+            }
+
+            if (decreasedStat == string.Empty)
+            {
+                decreasedStat = "Hp";
+                decreasedModifier = 1.0f;
+            }
+
+            if (!Enum.TryParse<Statistic>(increasedStat, out var increasedStatEnum))
+                throw new InvalidDataException($"Increased stat {increasedStat} is not a valid stat.");
+            if (!Enum.TryParse<Statistic>(decreasedStat, out var decreasedStatEnum))
+                throw new InvalidDataException($"Decreased stat {decreasedStat} is not a valid stat.");
+
+            library.Add(new Nature(nature, increasedStatEnum, decreasedStatEnum, increasedModifier, decreasedModifier));
+        }
+
+        return library;
+    }
+}