feat: add logging for say command (closes #166)

src/commands/say.ts

@@ -0,0 +1,37 @@
+import {
+  CacheType,
+  ChatInputCommandInteraction,
+  EmbedBuilder,
+} from 'discord.js';
+
+export const sayCommand = async (
+  interaction: ChatInputCommandInteraction<CacheType>
+) => {
+  if (!interaction.guild || !interaction.channel) return;
+
+  const content = interaction.options.getString('content', true);
+  await interaction.deferReply({ ephemeral: true });
+  const message = await interaction.channel.send(content);
+  await interaction.editReply('I said what you said!');
+
+  if (typeof process.env.SAY_LOGS_CHANNEL === 'string') {
+    const logsChannel = await interaction.guild.channels.fetch(
+      process.env.SAY_LOGS_CHANNEL
+    );
+
+    if (!logsChannel?.isTextBased()) return;
+
+    await logsChannel.send({
+      embeds: [
+        new EmbedBuilder()
+          .setTitle('Say command used')
+          .setDescription(content)
+          .setAuthor({
+            name: interaction.user.tag,
+            iconURL: interaction.user.avatarURL() ?? undefined,
+          })
+          .setURL(message.url),
+      ],
+    });
+  }
+};