The Milestone Commit (#48)

mctaylors:
- updated readme 7 times (and only adding new logo from /about)
-
[removed](https://github.com/TeamOctolings/Boyfriend/pull/48/commits/aeeb3d4399c31df70b47ccdf59f6963fdb68e9ec)
bot footer from created event embed on the second try
-
[changed](https://github.com/TeamOctolings/Boyfriend/pull/48/commits/4b9b91d9e4d2289d9aad4e600f5ca6a424638a6e)
cdn from discord to upload.systems

Octol1ttle:
- Guild settings code has been overhauled. Instead of instances of a
`GuildConfiguration` class being (de-)serialized when used with listing
and setting options provided by reflection, there are now multiple
`Option` classes responsible for the type of option they are storing.
The classes support getting a value, validating and setting values with
Results, and getting a user-friendly representation of these values.
This makes use of polymorphism, providing clean and easier to use and
refactor code.
- Gateway event responders have been split into their own separate
files, which should make it easier to find and modify responders when
needed.
- Warning suppressions regarding unused and never instantiated classes
have been replaced by `[ImplicitUse]` annotations provided by
`JetBrains.Annotations`. This avoids hiding real issues and provides a
better way to suppress false warnings while being explicit.
- It is no longer possible to execute some slash commands if they are
run without the correct permissions
- Dependencies are now more explicitly defined

neroduckale:
 - Made easter eggs case-insensitive

---------

Signed-off-by: Macintosh II <95250141+mctaylors@users.noreply.github.com>
Signed-off-by: Octol1ttle <l1ttleofficial@outlook.com>
Co-authored-by: Octol1ttle <l1ttleofficial@outlook.com>
Co-authored-by: nrdk <neroduck@vk.com>

src/Data/Options/LanguageOption.cs

@@ -0,0 +1,35 @@
+using System.Globalization;
+using System.Text.Json.Nodes;
+using Remora.Discord.Extensions.Formatting;
+using Remora.Results;
+
+namespace Boyfriend.Data.Options;
+
+/// <inheritdoc />
+public class LanguageOption : Option<CultureInfo> {
+    private static readonly Dictionary<string, CultureInfo> CultureInfoCache = new() {
+        { "en", new CultureInfo("en-US") },
+        { "ru", new CultureInfo("ru-RU") },
+        { "mctaylors-ru", new CultureInfo("tt-RU") }
+    };
+
+    public LanguageOption(string name, string defaultValue) : base(name, CultureInfoCache[defaultValue]) { }
+
+    public override string Display(JsonNode settings) {
+        return Markdown.InlineCode(settings[Name]?.GetValue<string>() ?? "en");
+    }
+
+    /// <inheritdoc />
+    public override CultureInfo Get(JsonNode settings) {
+        var property = settings[Name];
+        return property != null ? CultureInfoCache[property.GetValue<string>()] : DefaultValue;
+    }
+
+    /// <inheritdoc />
+    public override Result Set(JsonNode settings, string from) {
+        if (!CultureInfoCache.ContainsKey(from.ToLowerInvariant()))
+            return Result.FromError(new ArgumentInvalidError(nameof(from), Messages.LanguageNotSupported));
+
+        return base.Set(settings, from.ToLowerInvariant());
+    }
+}