import { Result } from "@repo/rdx-utils";

import { AssetCatalogError } from "../domain/asset-definition";
import { canAssignAsset } from "../domain/asset-state";
import { WorkstationValues } from "../domain/value-objects/workstation-values.vo";
import type { Workstation } from "../domain/workstation.aggregate";
import type { WorkstationInput } from "../domain/workstation-values";

import type { InventoryContext } from "./asset.repository";

export function mapWorkstationInput(
  input: WorkstationInput,
  context: InventoryContext,
  previous?: Workstation
) {
  const mapped = WorkstationValues.create(input);

  if (!mapped.isSuccess) {
    return mapped;
  }
  const values = mapped.data.toPrimitive();

  if (
    values.siteId &&
    !context.sites.some(
      (site) =>
        site.id.toPrimitive() === values.siteId &&
        (site.active || previous?.values.toPrimitive().siteId === values.siteId)
    )
  ) {
    return Result.fail(new AssetCatalogError("SITE_NOT_FOUND"));
  }
  const person = context.people.find((item) => item.id.toPrimitive() === values.personId);

  if (
    values.personId &&
    (!person || (!person.active && previous?.values.toPrimitive().personId !== values.personId))
  ) {
    return Result.fail(new AssetCatalogError("PERSON_UNAVAILABLE"));
  }
  for (const id of values.assetIds) {
    const error = memberError(id, values, context, previous);

    if (error) {
      return Result.fail(new AssetCatalogError(error));
    }
  }

  return mapped;
}

function memberError(
  id: string,
  values: WorkstationInput,
  context: InventoryContext,
  previous: Workstation | undefined
) {
  const asset = context.assets.find((item) => item.id.toPrimitive() === id);

  if (!asset) {
    return "ASSET_NOT_FOUND";
  }
  if (!values.active) {
    return undefined;
  }
  const previousMembers = previous?.values.assetIds;
  const retained =
    previous?.values.active && previousMembers?.some((item) => item.toPrimitive() === id);

  if (!(retained || canAssignAsset(asset.values.technicalStatus, false))) {
    return "ASSET_NOT_OPERATIONAL";
  }
  const others = context.workstations.filter(
    (item) => item.values.active && item.id.toPrimitive() !== previous?.id.toPrimitive()
  );
  const exclusiveElsewhere = others.some((item) =>
    item.values.assetIds.some((assetId) => assetId.toPrimitive() === id)
  );

  if (exclusiveElsewhere) {
    return "ASSET_IN_WORKSTATION";
  }

  return undefined;
}