feat: add internal role manager plugin; add role buttons plugin

backend/src/data/GuildRoleQueue.ts

@@ -0,0 +1,48 @@
+import { getRepository, Repository } from "typeorm";
+import { Reminder } from "./entities/Reminder";
+import { BaseRepository } from "./BaseRepository";
+import moment from "moment-timezone";
+import { DBDateFormat } from "../utils";
+import { BaseGuildRepository } from "./BaseGuildRepository";
+import { RoleQueueItem } from "./entities/RoleQueueItem";
+import { connection } from "./db";
+
+export class GuildRoleQueue extends BaseGuildRepository {
+  private roleQueue: Repository<RoleQueueItem>;
+
+  constructor(guildId) {
+    super(guildId);
+    this.roleQueue = getRepository(RoleQueueItem);
+  }
+
+  consumeNextRoleAssignments(count: number): Promise<RoleQueueItem[]> {
+    return connection.transaction(async (entityManager) => {
+      const repository = entityManager.getRepository(RoleQueueItem);
+
+      const nextAssignments = await repository
+        .createQueryBuilder()
+        .where("guild_id = :guildId", { guildId: this.guildId })
+        .addOrderBy("priority", "DESC")
+        .addOrderBy("id", "ASC")
+        .take(count)
+        .getMany();
+
+      if (nextAssignments.length > 0) {
+        const ids = nextAssignments.map((assignment) => assignment.id);
+        await repository.createQueryBuilder().where("id IN (:ids)", { ids }).delete().execute();
+      }
+
+      return nextAssignments;
+    });
+  }
+
+  async addQueueItem(userId: string, roleId: string, shouldAdd: boolean, priority = 0) {
+    await this.roleQueue.insert({
+      guild_id: this.guildId,
+      user_id: userId,
+      role_id: roleId,
+      should_add: shouldAdd,
+      priority,
+    });
+  }
+}