Add persist plugin

src/data/GuildPersistedData.ts

@@ -0,0 +1,53 @@
+import knex from "../knex";
+import PersistedData from "../models/PersistedData";
+
+export interface IPartialPersistData {
+  roles?: string[];
+  nickname?: string;
+  is_voice_muted?: boolean;
+}
+
+export class GuildPersistedData {
+  protected guildId: string;
+
+  constructor(guildId) {
+    this.guildId = guildId;
+  }
+
+  async find(userId: string) {
+    const result = await knex("persisted_data")
+      .where("guild_id", this.guildId)
+      .where("user_id", userId)
+      .first();
+
+    return result ? new PersistedData(result) : null;
+  }
+
+  async set(userId: string, data: IPartialPersistData = {}) {
+    const finalData: any = {};
+    if (data.roles) finalData.roles = data.roles.join(",");
+    if (data.nickname) finalData.nickname = data.nickname;
+    if (data.is_voice_muted) finalData.is_voice_muted = data.is_voice_muted ? 1 : 0;
+
+    const existing = await this.find(userId);
+    if (existing) {
+      await knex("persisted_data")
+        .where("guild_id", this.guildId)
+        .where("user_id", userId)
+        .update(finalData);
+    } else {
+      await knex("persisted_data").insert({
+        ...finalData,
+        guild_id: this.guildId,
+        user_id: userId
+      });
+    }
+  }
+
+  async clear(userId: string) {
+    await knex("persisted_data")
+      .where("guild_id", this.guildId)
+      .where("user_id", userId)
+      .delete();
+  }
+}