Adds some more polish

source/Events/Handlers/LeaderChanged.ts

@@ -0,0 +1,81 @@
+import {ElementChangedEvent} from "../EventClasses/ElementChangedEvent";
+import {GroupModel} from "../../Database/Models/GroupModel";
+import Groups from "../../Database/tables/Groups";
+import {Container} from "../../Container/Container";
+import {GroupRepository} from "../../Database/Repositories/GroupRepository";
+import {ConfigurationHandler} from "../../Configuration/ConfigurationHandler";
+import {GroupConfigurationModel} from "../../Database/Models/GroupConfigurationModel";
+import {
+  GroupConfigurationProvider,
+  RuntimeGroupConfiguration
+} from "../../Configuration/Groups/GroupConfigurationProvider";
+import {GroupConfigurationRepository} from "../../Database/Repositories/GroupConfigurationRepository";
+import {DiscordClient} from "../../Discord/DiscordClient";
+import {EmbedLibrary} from "../../Discord/EmbedLibrary";
+import {roleMention, userMention} from "discord.js";
+import * as util from "node:util";
+import {ArrayUtils} from "../../Utilities/ArrayUtils";
+
+const CHANGED_LINES = [
+  "Look who now manages your group, its %s. He will do a fantastic job!",
+  "Oh the 14th god changed... again, now its %s",
+  "This group was given to %s",
+  "This world was given over to %s, lets hope you survive the next adventure :smiling_imp:"
+]
+
+export async function sendLeaderChangeNotificationEventHandler(event: ElementChangedEvent<GroupModel>) {
+  if (event.tableName !== Groups.name) {
+    return;
+  }
+  
+  if (!event.changes.leader?.memberid) {
+    return;
+  }
+  
+  const group = Container.get<GroupRepository>(GroupRepository.name).getById(event.changes.id);
+  if (!group) {
+    return;
+  }
+  
+  const groupConfig = new ConfigurationHandler<GroupConfigurationModel, RuntimeGroupConfiguration>(
+    new GroupConfigurationProvider(
+      Container.get<GroupConfigurationRepository>(GroupConfigurationRepository.name),
+      group
+    )
+  );
+
+  const targetChannel = groupConfig.getConfigurationByPath('channels.notifications').value;
+  if (!targetChannel) {
+    return;
+  }
+
+
+  const channel = await Container.get<DiscordClient>(DiscordClient.name).Client.channels.fetch(<string>targetChannel)
+  if (!channel) {
+    return;
+  }
+
+  if (!channel.isTextBased()) {
+    return;
+  }
+
+  if (!channel.isSendable()) {
+    return;
+  }
+
+  const embed = EmbedLibrary.withGroup(
+    group,
+    "You have a new leader",
+    util.format(ArrayUtils.chooseRandom(CHANGED_LINES), userMention(group.leader.memberid))
+  )
+
+  channel.send({
+    content: roleMention(group.role.roleid),
+    embeds: [
+      embed
+    ],
+    allowedMentions: {
+      roles: [group.role.roleid]
+    }
+  })
+}