import { getPayload } from "payload";
import config from "@payload-config";

// Usage: `bun run src/tools/seed/backfillProfiles.ts`.
// Creates a profile for every user that doesn't have one yet. Idempotent.
export const backfillProfiles = async () => {
  const payload = await getPayload({ config });

  payload.logger.info("Backfilling missing profiles...");

  // Resolve the Recruit rank the same way the Users.ts afterChange hook does.
  const ranks = await payload.find({
    collection: "ranks",
    where: {
      name: {
        like: "Recruit",
      },
    },
    limit: 1,
    depth: 0,
    overrideAccess: true,
  });
  const recruitRankId = (ranks as { docs: Array<{ id: number }> }).docs[0]?.id ?? null;
  payload.logger.info(
    `Resolved Recruit rank: ${recruitRankId === null ? "none found (will use null)" : `id=${recruitRankId}`}`,
  );

  // Enumerate all users.
  const usersResult = await payload.find({
    collection: "users",
    limit: 500,
    depth: 0,
    overrideAccess: true,
  });
  const users = usersResult.docs as Array<{ id: number; username: string }>;
  payload.logger.info(`Found ${users.length} users.`);

  // Count existing profiles before we start.
  const profilesBefore = await payload.find({
    collection: "profiles",
    limit: 1,
    depth: 0,
    overrideAccess: true,
  });
  const profilesBeforeCount = profilesBefore.totalDocs;
  payload.logger.info(`Profiles before: ${profilesBeforeCount}`);

  let created = 0;
  for (const user of users) {
    // Check if this user already has a profile.
    const existing = await payload.find({
      collection: "profiles",
      where: {
        user: {
          equals: user.id,
        },
      },
      limit: 1,
      depth: 0,
      overrideAccess: true,
    });

    if (existing.totalDocs > 0) {
      continue;
    }

    try {
      await payload.create({
        collection: "profiles",
        data: {
          user: user.id,
          rank: recruitRankId,
          progression: {
            qualifications: [],
            experience: 0,
            awards: [],
          } as any,
        },
        overrideAccess: true,
      });
      created++;
      payload.logger.info(`Created profile for user id=${user.id} username="${user.username}"`);
    } catch (e) {
      payload.logger.error(
        `Failed to create profile for user id=${user.id} username="${user.username}": ${e}`,
      );
    }
  }

  // Count profiles after.
  const profilesAfter = await payload.find({
    collection: "profiles",
    limit: 1,
    depth: 0,
    overrideAccess: true,
  });
  const profilesAfterCount = profilesAfter.totalDocs;

  payload.logger.info("--- backfill summary ---");
  payload.logger.info(`Users: ${users.length}`);
  payload.logger.info(`Profiles before: ${profilesBeforeCount}`);
  payload.logger.info(`Profiles created: ${created}`);
  payload.logger.info(`Profiles after: ${profilesAfterCount}`);
};

await backfillProfiles();