feat: add member cache; handle all role changes with RoleManagerPlugin; exit gracefully

backend/src/migrations/1682788165866-CreateMemberCacheTable.ts

@@ -0,0 +1,69 @@
+import { MigrationInterface, QueryRunner, Table } from "typeorm";
+
+export class CreateMemberCacheTable1682788165866 implements MigrationInterface {
+  public async up(queryRunner: QueryRunner): Promise<void> {
+    await queryRunner.createTable(
+      new Table({
+        name: "member_cache",
+        columns: [
+          {
+            name: "id",
+            type: "int",
+            isPrimary: true,
+            isGenerated: true,
+            generationStrategy: "increment",
+          },
+          {
+            name: "guild_id",
+            type: "bigint",
+          },
+          {
+            name: "user_id",
+            type: "bigint",
+          },
+          {
+            name: "username",
+            type: "varchar",
+            length: "255",
+          },
+          {
+            name: "nickname",
+            type: "varchar",
+            length: "255",
+            isNullable: true,
+          },
+          {
+            name: "roles",
+            type: "text",
+          },
+          {
+            name: "last_seen",
+            type: "date",
+          },
+          {
+            name: "delete_at",
+            type: "datetime",
+            isNullable: true,
+            default: null,
+          },
+        ],
+        indices: [
+          {
+            columnNames: ["guild_id", "user_id"],
+            isUnique: true,
+          },
+          {
+            columnNames: ["last_seen"],
+          },
+          {
+            columnNames: ["delete_at"],
+          },
+        ],
+      }),
+    );
+  }
+
+  public async down(queryRunner: QueryRunner): Promise<void> {
+    await queryRunner.dropTable("member_cache");
+  }
+}