import { Injectable } from "@nestjs/common";
import { PrismaService } from "../prisma/prisma.service.js";

// Q-3 裝置推播 token 註冊：同一個 token 重複註冊（例如 APP 重新啟動）視為更新，不會產生重複紀錄。
@Injectable()
export class PushTokenService {
  constructor(private readonly prisma: PrismaService) {}

  async register(userId: string, token: string, platform: string) {
    return this.prisma.client.pushToken.upsert({
      where: { token },
      update: { userId, platform },
      create: { userId, token, platform },
    });
  }

  async listForUser(userId: string) {
    return this.prisma.client.pushToken.findMany({ where: { userId } });
  }
}