auto accept quests

import type { Quest } from "@spt-aki/models/eft/common/IPmcData";
import type { IAkiProfile } from "@spt-aki/models/eft/profile/IAkiProfile";

/**
 * Some generic utils
 */
const indexBy =
  <T>(getId: (q: T) => string) =>
  (quests: T[]) => {
    const indexedQuests: Record<string, T> = {};

    quests.forEach((q) => {
      indexedQuests[getId(q)] = q;
    });

    return indexedQuests;
  };

const indexQuestsById = indexBy<Quest>((q) => q.qid);
const indexIds = indexBy<string>((id) => id);

/**
 * A helper (curried) function that create a started quest status
 */
const createStartedQuestStatus = (startTime: number) => (qid: string) => {
  return {
    qid,
    startTime,
    status: "Started",
    completeConditions: [],
  };
};

/**
 * This should work fine but I suggest to avoid applying this systematically on all profiles (on the delayedLoad).
 * Prefer hack the gameStart method on GameCallbacks instance to only apply this on the concerned profile.
 */
const autoAcceptQuests = (
  profile: IAkiProfile,
  questIdsToAccept: string[]
): void => {
  const pmc = profile.characters.pmc;

  if (pmc && pmc.Quests) {
    const indexedProfileQuests = indexQuestsById(pmc.Quests);
    const indexedIdsToAccept = indexIds(questIdsToAccept);
    const timeInSeconds = Math.floor(Date.now() / 1000);

    // when not found: create new quests status
    const newQuestsStatus = questIdsToAccept
      .filter((qid) => !indexedProfileQuests[qid])
      .map(createStartedQuestStatus(timeInSeconds));

    // all quests we want to auto-accept may have the `AvailableForStart` status, so we replace it by a new `Started` quest status
    const updatedQuestsStatus = pmc.Quests.map((q) => {
      if (indexedIdsToAccept[q.qid] && q.status === "AvailableForStart") {
        return createStartedQuestStatus(timeInSeconds)(q.qid);
      }

      return q;
    });

    pmc.Quests = [...updatedQuestsStatus, ...newQuestsStatus];
  }
};