private getDisabledDependantAmount (dependant: Dependant): number {
   if (dependant) {
     if (dependant.anyDisabledChildren) {
       return this.allowances.getDisabilityAllowance(DisabilityAllowanceType.DEPENDANT).monthly || 0
     }
     if (dependant.otherDependants) {
       if (dependant.otherDependants.anyDisabled) {
         return this.allowances.getDisabilityAllowance(DisabilityAllowanceType.DEPENDANT).monthly || 0
       }
     }
   }
 }

 getMonthlyPensionerAllowance (income: Income[], partner: Partner): number {
   if (!income) {
     return 0
   }
   const isDefendantPensioner = income.filter(incomeType => incomeType.type === IncomeType.PENSION).pop() !== undefined
   if (isDefendantPensioner) {
     if (partner && partner.pensioner) {
       return this.getMonthlyAmount(this.allowances.getPensionAllowance(PensionAllowanceType.DEFENDANT_AND_PARTNER))
     } else {
       return this.getMonthlyAmount(this.allowances.getPensionAllowance(PensionAllowanceType.DEFENDANT_ONLY))
     }
   }
   return 0
 }

  getDisabilityAllowance (defendantDisability: DisabilityStatus, partner: Partner): number {

    if (defendantDisability === DisabilityStatus.NO) {
      return 0
    }

    let disabledStatus: DisabilityAllowanceType = defendantDisability === DisabilityStatus.YES ?
      DisabilityAllowanceType.DEFENDANT_ONLY : DisabilityAllowanceType.DEFENDANT_ONLY_SEVERE

    if (partner && partner.disability) {
      switch (partner.disability) {
        case DisabilityStatus.YES:
          disabledStatus = defendantDisability === DisabilityStatus.YES ?
            DisabilityAllowanceType.DEFENDANT_AND_PARTNER : DisabilityAllowanceType.DEFENDANT_ONLY_SEVERE
          break
        case DisabilityStatus.SEVERE:
          disabledStatus = defendantDisability === DisabilityStatus.YES ?
            DisabilityAllowanceType.DEFENDANT_ONLY_SEVERE : DisabilityAllowanceType.DEFENDANT_AND_PARTNER_SEVERE
          break
        default:
          break
      }
    }
    return this.getMonthlyAmount(this.allowances.getDisabilityAllowance(disabledStatus))
  }

  getMonthlyDependantsAllowance (dependants: Dependant): number {
    if (!dependants) {
      return 0
    }
    let numberOfDependants = 0
    if (dependants.children) {
      const reducer = (total: number, children: Child) => {
        const numberOfDependants: number =
          children.ageGroupType !== AgeGroupType.BETWEEN_16_AND_19 ?
            children.numberOfChildren : children.numberOfChildrenLivingWithYou

        if (!numberOfDependants) {
          return total
        }
        return total + numberOfDependants
      }
      numberOfDependants = dependants.children.reduce(reducer, 0)
    }

    if (dependants.otherDependants) {
      numberOfDependants += dependants.otherDependants.numberOfPeople
    }
    const monthlyAmount: number = this.getMonthlyAmount(this.allowances.getDependantAllowance(DependantAllowanceType.PER_DEPENDANT))
    return (numberOfDependants * monthlyAmount)
  }

 getMonthlyLivingAllowance (defendantAge: number, partner: Partner): number {
   if (defendantAge < 18 || defendantAge === undefined) {
     return 0
   }
   let cohabitationStatus: LivingAllowanceType
   if (!partner) {
     cohabitationStatus = defendantAge < 25 ? LivingAllowanceType.SINGLE_18_TO_24 : LivingAllowanceType.SINGLE_OVER_25
   } else {
     if (partner.over18) {
       cohabitationStatus = LivingAllowanceType.DEFENDANT_AND_PARTNER_OVER_18
     } else {
       cohabitationStatus = defendantAge < 25 ? LivingAllowanceType.DEFENDANT_UNDER_25_PARTNER_UNDER_18 :
         LivingAllowanceType.DEFENDANT_OVER_25_PARTNER_UNDER_18
     }
   }
   return this.getMonthlyAmount(this.allowances.getLivingAllowance(cohabitationStatus))
 }

 private getCarerAmount (isCarer: boolean): number {
   return isCarer ? this.allowances.getDisabilityAllowance(DisabilityAllowanceType.CARER).monthly : 0
 }