Track all requests to OpenAI in a database

this will be in future used to limit access to the bot

src/index.ts

@@ -1,5 +1,6 @@
 import DiscordApi from "discord.js";
 import { Configuration as OpenAIApiConfiguration, OpenAIApi } from "openai";
+import { PrismaClient } from "@prisma/client";
 
 import config from "./config";
 import toOpenAIMessages from "./toOpenAIMessages";
@@ -17,6 +18,8 @@ export const openai = new OpenAIApi(new OpenAIApiConfiguration({
   apiKey: config.tokens.OpenAI
 }));
 
+export const database = new PrismaClient();
+
 discord.on("ready", async event => {
   console.log(`Connected to Discord as ${event.user.tag} (${event.user.id})`);
 });
@@ -55,6 +58,20 @@ async function onMessage(channel: string) {
     if (usage != undefined) {
       const channelName: string = message.inGuild() ? `${message.channel.name} (${message.guild.name})` : `@${message.author.tag}`;
       console.log(`Used ${usage.total_tokens} (${usage.prompt_tokens} + ${usage.completion_tokens}) tokens for ${message.author.tag} (${message.author.id}) in #${channelName}`);
+
+      database.usage.create({
+        data: {
+          timestamp: message.createdAt,
+          user: BigInt(message.author.id),
+          channel: BigInt(message.channelId),
+          guild: message.guildId ? BigInt(message.guildId) : null,
+          usageReguest: usage.prompt_tokens,
+          usageResponse: usage.completion_tokens
+        }
+      }).catch((e => {
+        console.error("Failed to push to a database");
+        console.error(e);
+      }));
     }
 
     const answerContent = answer.data.choices[0].message?.content;