import { prisma } from "../db/prisma.js";
import type { FeatureGroupDto, FocusAreaPurpose } from "../types/api.js";

const toPublicId = (value: { slug: string | null; readableId: string | null; id: string }) =>
  value.slug ?? value.readableId ?? value.id;

const findProjectRecordBySlugOrId = (projectIdOrSlug: string) =>
  prisma.project.findFirst({
    where: {
      deletedAt: null,
      OR: [{ id: projectIdOrSlug }, { slug: projectIdOrSlug }],
    },
  });

export const listFeatureGroupsForProject = async (
  projectIdOrSlug: string,
): Promise<FeatureGroupDto[] | undefined> => {
  const project = await findProjectRecordBySlugOrId(projectIdOrSlug);
  if (!project) return undefined;

  const groups = await prisma.featureGroup.findMany({
    where: {
      projectId: project.id,
      deletedAt: null,
    },
    orderBy: [{ name: "asc" }],
    include: {
      features: {
        where: { deletedAt: null },
        orderBy: { name: "asc" },
      },
    },
  });

  return groups.map((group) => ({
    id: toPublicId(group),
    projectId: project.slug,
    name: group.name,
    description: group.description ?? undefined,
    focusArea: group.focusArea as FocusAreaPurpose | undefined,
    featureIds: group.features.map(toPublicId),
  }));
};