redis stuff

bot/util/redis.js

@@ -0,0 +1,39 @@
+const redis = require('redis')
+const generators = require('redis-async-gen')
+
+class Redis {
+  constructor(client) {
+    // Create redis client
+    this.global = redis.createClient(this.client.config.redis)
+    this.server = this.global.duplicate({ db: 1 })
+    this.member = this.global.duplicate({ db: 2 })
+    this.user = this.global.duplicate({ db: 3 })
+
+    // Deletes specified guild entry
+    this.deleteGuild = async function (id) {
+        this.server.del(id)
+        var { keysMatching } = await generators.using(this.member)
+        // eslint-disable-next-line no-unused-vars
+        for await (const key of keysMatching(id + '-*')) {
+            this.member.del(key)
+        }
+    }
+
+    // Deletes specified user and their member entries in guilds
+    this.deleteUser = async function (id) {
+        this.user.del(id)
+        var { keysMatching } = await generators.using(this.member)
+        // eslint-disable-next-line no-unused-vars
+        for await (const key of keysMatching('*-' + id)) {
+            this.member.del(key)
+        }
+    }
+
+    // Deletes member of user in specified guild
+    this.deleteMember = async function (guildId, id) {
+        this.member.del(guildId + '-' + id)
+    }
+  }
+}
+
+module.exports = Redis