feat: initial prototype (#3)

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- [x] I have pinned the dependencies to a specific patch version.

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- [x] I have run the linter and resolved any errors.
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### Tests

- [ ] My contribution adds new code, and I have added tests to cover it.
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Reviewed-on: #3
Co-authored-by: Naomi Carrigan <commits@nhcarrigan.com>
Co-committed-by: Naomi Carrigan <commits@nhcarrigan.com>

src/events/interactionCreate.ts

@@ -0,0 +1,37 @@
+/**
+ * @copyright nhcarrigan
+ * @license Naomi's Public License
+ * @author Naomi Carrigan
+ */
+import { about } from "../commands/about.js";
+import { config } from "../commands/config.js";
+import type { Command } from "../interfaces/command.js";
+import type { Sorielle } from "../interfaces/sorielle.js";
+import type { ChatInputCommandInteraction } from "discord.js";
+
+const handlers: { _default: Command } & Record<string, Command> = {
+  _default: async(_, interaction): Promise<void> => {
+    await interaction.reply({
+      content: `Unknown command: ${interaction.commandName}`,
+    });
+  },
+  about:  about,
+  config: config,
+};
+
+/**
+ * Processes a slash command.
+ * @param sorielle - Sorielle's Discord instance.
+ * @param interaction - The command interaction payload from Discord.
+ */
+const chatInputInteractionCreate = async(
+  sorielle: Sorielle,
+  interaction: ChatInputCommandInteraction<"cached">,
+): Promise<void> => {
+  const name = interaction.commandName;
+  // eslint-disable-next-line no-underscore-dangle -- We use _default as a fallback handler.
+  const handler = handlers[name] ?? handlers._default;
+  await handler(sorielle, interaction);
+};
+
+export { chatInputInteractionCreate };

src/events/messageCreate.ts

@@ -0,0 +1,41 @@
+/**
+ * @copyright nhcarrigan
+ * @license Naomi's Public License
+ * @author Naomi Carrigan
+ */
+import { checkGuildEntitlement } from "../utils/checkEntitlement.js";
+import type { Sorielle } from "../interfaces/sorielle.js";
+import type { Message } from "discord.js";
+
+/**
+ * Processes a slash command.
+ * @param sorielle - Sorielle's Discord instance.
+ * @param message - The message payload from Discord.
+ */
+const messageCreate = async(
+  sorielle: Sorielle,
+  message: Message<true>,
+): Promise<void> => {
+  const isEntitled = await checkGuildEntitlement(sorielle, message.guild);
+  if (!isEntitled) {
+    return;
+  }
+  const serverRecord = await sorielle.database.vents.findUnique({
+    where: {
+      serverId: message.guild.id,
+    },
+  });
+  if (!serverRecord) {
+    return;
+  }
+  if (serverRecord.channelId !== message.channel.id) {
+    return;
+  }
+  setTimeout(() => {
+    void message.delete().catch(() => {
+      return null;
+    });
+  }, serverRecord.ttl * 1000);
+};
+
+export { messageCreate };