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packages/backend/src/modules/repositories/Community.ts

@@ -0,0 +1,66 @@
+import { EntityRepository } from "@mikro-orm/postgresql";
+import { ErrorBase } from "@/errors";
+import z from "zod/v3";
+import { UserRepository } from "@/modules/repositories/User";
+import type { CommunityEntity } from "@/modules/entities/Community";
+
+export class CommunityRepository extends EntityRepository<CommunityEntity> {
+  public static schema = z.object({
+    name: z.string().trim().min(1).max(20),
+    description: z.string().trim().min(1).max(4096),
+    userid: UserRepository.schema.shape.userid,
+    icon: z.string().url(),
+  });
+
+  async listCommunity(limit: number = 20, sinceData?: string) {
+    let since = sinceData ?? new Date();
+
+    if (
+      sinceData &&
+      !isNaN(new Date(sinceData).getTime())
+    ) {
+      const itCommunity = await this.findOne({ id: sinceData });
+
+      if (!itCommunity) {
+        return ErrorBase({
+          bad: "client",
+          code: "community_not_found",
+          message: "対象のコミュニティが見つかりませんでした。",
+        });
+      }
+
+      since = itCommunity.createdAt;
+    }
+
+    const findResult = await this.find({
+      createdAt: {
+        $lt: since,
+      },
+    }, {
+      orderBy: {
+        createdAt: "DESC",
+      },
+      limit: limit,
+    });
+
+    return findResult ?? [];
+  }
+
+  async createCommunity(data: Omit<z.infer<typeof CommunityRepository.schema>, "icon">) {
+    const community = this.create({
+      ...data,
+      createdBy: data.userid,
+    });
+
+    await this.em.persist(community).flush();
+    return community.id;
+  }
+
+  async editCommunity(
+    target: CommunityEntity,
+    data: Partial<Omit<z.infer<typeof CommunityRepository.schema>, "userid">>
+  ) {
+    await this.nativeUpdate(target, data);
+    return target.id;
+  }
+}