Add accessors

src/Nyanbyte.Countries/Country.cs

@@ -14,6 +14,46 @@ public readonly partial struct Country
         CcTld = tld;
     }
 
+    public static Country GetFromCode(CountryCode code)
+    {
+        return _countries[code];
+    }
+
+    public static Country? GetFromName(string name)
+    {
+        name = name.Trim();
+        return _countries.SingleOrDefault(s => s.Value.OfficialName.Equals(name, StringComparison.OrdinalIgnoreCase) || s.Value.CustomaryName.Equals(name, StringComparison.OrdinalIgnoreCase)).Value;
+    }
+
+    public static IEnumerable<Country> GetByCurrency(string code)
+    {
+        code = code.ToUpperInvariant();
+        return _countries.Where(s => s.Value.CurrencyCode == code).Select(s => s.Value).AsEnumerable();
+    }
+
+    public static IEnumerable<Country> GetByCurrency(int code)
+    {
+        return _countries.Where(s => s.Value.CurrencyCodeNumeric == code).Select(s => s.Value).AsEnumerable();
+    }
+
+    public static Country? GetFromCallingCode(int code)
+    {
+        return _countries.SingleOrDefault(s => s.Value.CallingCode == code).Value;
+    }
+
+    public static Country? GetFromTld(string ccTld)
+    {
+        ccTld = ccTld.Trim();
+        if (ccTld.Length != 2)
+        {
+            throw new ArgumentException($"Invalid ccTLD: {ccTld}");
+        }
+
+        return _countries.SingleOrDefault(s => s.Value.CcTld == ccTld).Value;
+    }
+
+    public static ICollection<Country> GetAll() => _countries.Select(c => c.Value).ToArray();
+
     public readonly CountryCode Code { get; private init; }
     public readonly int IsoNumeric => (int)Code;
     public readonly string OfficialName { get; private init; }