import type { PrismaClient } from '@generated/prisma/client';
import type { BillingType, GroupDto, WeekDay } from '@gruperly/shared';

export type GroupDb = Pick<PrismaClient, 'group' | 'groupMember'>;

type PriceLike = { toString(): string };

export type GroupRecord = {
  id: string;
  name: string;
  description: string | null;
  createdById: string;
  createdAt: Date;
  updatedAt: Date;
  days: WeekDay[] | null;
  time: string | null;
  capacity: number | null;
  price: PriceLike | number | null;
  billingType: BillingType | null;
  dueDay: number | null;
  inviteToken?: string | null;
};

export function toGroupDto(record: GroupRecord): GroupDto {
  return {
    id: record.id,
    name: record.name,
    description: record.description,
    createdById: record.createdById,
    createdAt: record.createdAt.toISOString(),
    updatedAt: record.updatedAt.toISOString(),
    days: record.days,
    time: record.time,
    capacity: record.capacity,
    price: record.price == null ? null : Number(record.price.toString()),
    billingType: record.billingType,
    dueDay: record.dueDay,
    inviteToken: record.inviteToken ?? null,
  };
}

export function buildGroupWhereForUser(userId: string) {
  return {
    OR: [
      { createdById: userId },
      { members: { some: { userId } } },
    ],
  };
}