function decimalToString(value: unknown): string | null {
  if (value === null || value === undefined) {
    return null;
  }

  return String(value);
}

function isoDate(value: unknown): string | null {
  if (!value) {
    return null;
  }

  const date = value instanceof Date ? value : new Date(String(value));
  return Number.isNaN(date.getTime()) ? null : date.toISOString();
}

export function mapEquipment(record: any) {
  return {
    id: record.id,
    name: record.name,
    serialNumber: record.serialNumber,
    inventoryNumber: record.inventoryNumber,
    equipmentType: record.equipmentType,
    dateOfInspection: isoDate(record.dateOfInspection),
    periodicityTO: record.periodicityTO,
    location: record.location ?? null,
    status: record.status,
    commissionedAt: isoDate(record.commissionedAt),
    totalEngineHours: decimalToString(record.totalEngineHours),
    engineHoursSinceLastRepair: decimalToString(record.engineHoursSinceLastRepair),
    lastRepairAt: isoDate(record.lastRepairAt),
    notes: record.notes ?? null,
    workAsPartOf: record.workAsPartOf ?? null,
    fuelConsumed: record.fuelConsumed ?? null,
  };
}

export function mapEmployee(record: any, shallow = false): any {
  return {
    id: record.code,
    code: record.code,
    fullName: record.fullName,
    role: record.role,
    position: record.position,
    bossCode: record.bossCode ?? record.boss?.code ?? null,
    boss: shallow || !record.boss ? null : mapEmployee(record.boss, true),
    subordinates: shallow
      ? []
      : Array.isArray(record.subordinates)
        ? record.subordinates.map((item: any) => mapEmployee(item, true))
        : [],
    price: record.price ?? null,
    phoneNumber: record.phoneNumber ?? null,
  };
}

export function mapPart(record: any) {
  return {
    id: record.id,
    name: record.name,
    categories: record.categories ?? null,
    price: record.price ?? null,
    description: record.description ?? null,
    serialNumber: record.serialNumber ?? null,
  };
}

export function mapCategoryResource(record: any) {
  return {
    id: record.id,
    partId: record.partId ?? record.part?.id ?? null,
    employeeCode: record.employeeCode ?? record.employee?.code ?? null,
    part: record.part ? mapPart(record.part) : null,
    employee: record.employee ? mapEmployee(record.employee, true) : null,
  };
}

export function mapPriceList(costOfWorkingHours: number | null | undefined, partPrice: number | null | undefined) {
  return {
    id: 'price-list',
    costOfWorkingHours: costOfWorkingHours ?? 0,
    partPrice: partPrice ?? 0,
  };
}