/**
 * @dataElement All Doses Administered to Patient
 */
define "Doses Administered to Patient":
  [Immunization] I
    where I.status = 'completed'
    and I.isSubpotent is not true

define "Measles and Rubella Doses Administered to Patient":
  Elements."Doses Administered to Patient" I 
    where I.vaccineCode in Concepts."Measles and rubella-containing vaccines"

define "Measles and Rubella Doses Administered to Patient During Measurement Period":
  "Measles and Rubella Doses Administered to Patient" I
    where I.occurrence.toInterval() starts during "Measurement Period"

/*
@numerator: Number of measles and rubella-containing vaccine doses (1st dose) administered through routine services during the reporting period
@pseudocode: COUNT of immunization events WHERE "Vaccine type" = "Measles and rubella-containing vaccines" for the 1st dose in the primary series AND "Date and time of vaccination" is during the reporting period
*/
define "Numerator":
  exists( Elements."Measles and Rubella Doses Administered to Patient During Measurement Period".getDose('1') )

/* 
@stratifier: Toddler By Age Stratifiers
*/
define "Toddler By Age Stratifier":
    case 
        when AgeInYearsAt(end of "Measurement Period") < 1 then Age."P0Y--P1Y"
        when AgeInYearsAt(end of "Measurement Period") < 2 then Age."P1Y--P2Y"
        when AgeInYearsAt(end of "Measurement Period") >= 2 then Age."P2Y--P9999Y"
        else null
    end

define "Stratification 4":
	Elements."Toddler By Age Stratifier"

/*
@stratifier: Age in Years
*/
define "Age Stratifier":
  case
    when AgeInYearsAt(end of "Measurement Period") < 1 then Age."P0Y--P1Y"
    when AgeInYearsAt(end of "Measurement Period") < 2 then Age."P1Y--P2Y"
    when AgeInYearsAt(end of "Measurement Period") < 3 then Age."P2Y--P3Y"
    when AgeInYearsAt(end of "Measurement Period") < 4 then Age."P3Y--P4Y"
    when AgeInYearsAt(end of "Measurement Period") < 5 then Age."P4Y--P5Y"
    when AgeInYearsAt(end of "Measurement Period") < 6 then Age."P5Y--P6Y"
    when AgeInYearsAt(end of "Measurement Period") < 7 then Age."P6Y--P7Y"
    when AgeInYearsAt(end of "Measurement Period") < 8 then Age."P7Y--P8Y"
    when AgeInYearsAt(end of "Measurement Period") < 9 then Age."P8Y--P9Y"
    when AgeInYearsAt(end of "Measurement Period") < 10 then Age."P9Y--P10Y"
    when AgeInYearsAt(end of "Measurement Period") < 11 then Age."P10Y--P11Y"
    when AgeInYearsAt(end of "Measurement Period") < 12 then Age."P11Y--P12Y"
    when AgeInYearsAt(end of "Measurement Period") < 13 then Age."P12Y--P13Y"
    when AgeInYearsAt(end of "Measurement Period") < 14 then Age."P13Y--P14Y"
    when AgeInYearsAt(end of "Measurement Period") < 15 then Age."P14Y--P15Y"
    when AgeInYearsAt(end of "Measurement Period") < 16 then Age."P15Y--P16Y"
    when AgeInYearsAt(end of "Measurement Period") < 17 then Age."P16Y--P17Y"
    when AgeInYearsAt(end of "Measurement Period") < 18 then Age."P17Y--P18Y"
    when AgeInYearsAt(end of "Measurement Period") < 19 then Age."P18Y--P19Y"
    when AgeInYearsAt(end of "Measurement Period") < 20 then Age."P19Y--P20Y"
    when AgeInYearsAt(end of "Measurement Period") < 21 then Age."P20Y--P21Y"
    when AgeInYearsAt(end of "Measurement Period") < 22 then Age."P21Y--P22Y"
    when AgeInYearsAt(end of "Measurement Period") < 23 then Age."P22Y--P23Y"
    when AgeInYearsAt(end of "Measurement Period") < 24 then Age."P23Y--P24Y"
    when AgeInYearsAt(end of "Measurement Period") < 25 then Age."P24Y--P25Y"
    when AgeInYearsAt(end of "Measurement Period") < 26 then Age."P25Y--P26Y"
    when AgeInYearsAt(end of "Measurement Period") < 27 then Age."P26Y--P27Y"
    when AgeInYearsAt(end of "Measurement Period") < 28 then Age."P27Y--P28Y"
    when AgeInYearsAt(end of "Measurement Period") < 29 then Age."P28Y--P29Y"
    when AgeInYearsAt(end of "Measurement Period") < 30 then Age."P29Y--P30Y"
    when AgeInYearsAt(end of "Measurement Period") < 31 then Age."P30Y--P31Y"
    when AgeInYearsAt(end of "Measurement Period") < 32 then Age."P31Y--P32Y"
    when AgeInYearsAt(end of "Measurement Period") < 33 then Age."P32Y--P33Y"
    when AgeInYearsAt(end of "Measurement Period") < 34 then Age."P33Y--P34Y"
    when AgeInYearsAt(end of "Measurement Period") < 35 then Age."P34Y--P35Y"
    when AgeInYearsAt(end of "Measurement Period") < 36 then Age."P35Y--P36Y"
    when AgeInYearsAt(end of "Measurement Period") < 37 then Age."P36Y--P37Y"
    when AgeInYearsAt(end of "Measurement Period") < 38 then Age."P37Y--P38Y"
    when AgeInYearsAt(end of "Measurement Period") < 39 then Age."P38Y--P39Y"
    when AgeInYearsAt(end of "Measurement Period") < 40 then Age."P39Y--P40Y"
    when AgeInYearsAt(end of "Measurement Period") < 41 then Age."P40Y--P41Y"
    when AgeInYearsAt(end of "Measurement Period") < 42 then Age."P41Y--P42Y"
    when AgeInYearsAt(end of "Measurement Period") < 43 then Age."P42Y--P43Y"
    when AgeInYearsAt(end of "Measurement Period") < 44 then Age."P43Y--P44Y"
    when AgeInYearsAt(end of "Measurement Period") < 45 then Age."P44Y--P45Y"
    when AgeInYearsAt(end of "Measurement Period") < 46 then Age."P45Y--P46Y"
    when AgeInYearsAt(end of "Measurement Period") < 47 then Age."P46Y--P47Y"
    when AgeInYearsAt(end of "Measurement Period") < 48 then Age."P47Y--P48Y"
    when AgeInYearsAt(end of "Measurement Period") < 49 then Age."P48Y--P49Y"
    when AgeInYearsAt(end of "Measurement Period") < 50 then Age."P49Y--P50Y"
    when AgeInYearsAt(end of "Measurement Period") < 51 then Age."P50Y--P51Y"
    when AgeInYearsAt(end of "Measurement Period") < 52 then Age."P51Y--P52Y"
    when AgeInYearsAt(end of "Measurement Period") < 53 then Age."P52Y--P53Y"
    when AgeInYearsAt(end of "Measurement Period") < 54 then Age."P53Y--P54Y"
    when AgeInYearsAt(end of "Measurement Period") < 55 then Age."P54Y--P55Y"
    when AgeInYearsAt(end of "Measurement Period") < 56 then Age."P55Y--P56Y"
    when AgeInYearsAt(end of "Measurement Period") < 57 then Age."P56Y--P57Y"
    when AgeInYearsAt(end of "Measurement Period") < 58 then Age."P57Y--P58Y"
    when AgeInYearsAt(end of "Measurement Period") < 59 then Age."P58Y--P59Y"
    when AgeInYearsAt(end of "Measurement Period") < 60 then Age."P59Y--P60Y"
    when AgeInYearsAt(end of "Measurement Period") < 61 then Age."P60Y--P61Y"
    when AgeInYearsAt(end of "Measurement Period") < 62 then Age."P61Y--P62Y"
    when AgeInYearsAt(end of "Measurement Period") < 63 then Age."P62Y--P63Y"
    when AgeInYearsAt(end of "Measurement Period") < 64 then Age."P63Y--P64Y"
    when AgeInYearsAt(end of "Measurement Period") < 65 then Age."P64Y--P65Y"
    when AgeInYearsAt(end of "Measurement Period") < 66 then Age."P65Y--P66Y"
    when AgeInYearsAt(end of "Measurement Period") < 67 then Age."P66Y--P67Y"
    when AgeInYearsAt(end of "Measurement Period") < 68 then Age."P67Y--P68Y"
    when AgeInYearsAt(end of "Measurement Period") < 69 then Age."P68Y--P69Y"
    when AgeInYearsAt(end of "Measurement Period") < 70 then Age."P69Y--P70Y"
    when AgeInYearsAt(end of "Measurement Period") < 71 then Age."P70Y--P71Y"
    when AgeInYearsAt(end of "Measurement Period") < 72 then Age."P71Y--P72Y"
    when AgeInYearsAt(end of "Measurement Period") < 73 then Age."P72Y--P73Y"
    when AgeInYearsAt(end of "Measurement Period") < 74 then Age."P73Y--P74Y"
    when AgeInYearsAt(end of "Measurement Period") < 75 then Age."P74Y--P75Y"
    when AgeInYearsAt(end of "Measurement Period") < 76 then Age."P75Y--P76Y"
    when AgeInYearsAt(end of "Measurement Period") < 77 then Age."P76Y--P77Y"
    when AgeInYearsAt(end of "Measurement Period") < 78 then Age."P77Y--P78Y"
    when AgeInYearsAt(end of "Measurement Period") < 79 then Age."P78Y--P79Y"
    when AgeInYearsAt(end of "Measurement Period") < 80 then Age."P79Y--P80Y"
    when AgeInYearsAt(end of "Measurement Period") < 81 then Age."P80Y--P81Y"
    when AgeInYearsAt(end of "Measurement Period") < 82 then Age."P81Y--P82Y"
    when AgeInYearsAt(end of "Measurement Period") < 83 then Age."P82Y--P83Y"
    when AgeInYearsAt(end of "Measurement Period") < 84 then Age."P83Y--P84Y"
    when AgeInYearsAt(end of "Measurement Period") < 85 then Age."P84Y--P85Y"
    when AgeInYearsAt(end of "Measurement Period") < 86 then Age."P85Y--P86Y"
    when AgeInYearsAt(end of "Measurement Period") < 87 then Age."P86Y--P87Y"
    when AgeInYearsAt(end of "Measurement Period") < 88 then Age."P87Y--P88Y"
    when AgeInYearsAt(end of "Measurement Period") < 89 then Age."P88Y--P89Y"
    when AgeInYearsAt(end of "Measurement Period") < 90 then Age."P89Y--P90Y"
    when AgeInYearsAt(end of "Measurement Period") < 91 then Age."P90Y--P91Y"
    when AgeInYearsAt(end of "Measurement Period") < 92 then Age."P91Y--P92Y"
    when AgeInYearsAt(end of "Measurement Period") < 93 then Age."P92Y--P93Y"
    when AgeInYearsAt(end of "Measurement Period") < 94 then Age."P93Y--P94Y"
    when AgeInYearsAt(end of "Measurement Period") < 95 then Age."P94Y--P95Y"
    when AgeInYearsAt(end of "Measurement Period") < 96 then Age."P95Y--P96Y"
    when AgeInYearsAt(end of "Measurement Period") < 97 then Age."P96Y--P97Y"
    when AgeInYearsAt(end of "Measurement Period") < 98 then Age."P97Y--P98Y"
    when AgeInYearsAt(end of "Measurement Period") < 99 then Age."P98Y--P99Y"
    when AgeInYearsAt(end of "Measurement Period") < 100 then Age."P99Y--P100Y"
    when AgeInYearsAt(end of "Measurement Period") >= 100 then Age."P100Y--P9999Y"
    else null
  end

define "Stratification 3":
	Elements."Age Stratifier"

/*
@stratifier: By Administrative Gender of Patient Stratifier
*/
define "By Administrative Gender Stratifier":
    case 
        when Patient.gender = 'male' then "Males"
        when Patient.gender = 'female' then "Females"
        else "Other"
    end

define "Stratification 2":
	Elements."By Administrative Gender Stratifier"

/*
@stratifier: By Geographic Region of Patient Stratifier
*/
define "By Geographic Region Stratifier":
    First(Patient.address A where A.use in { 'home' }).state

/*
@disaggregation: Administrative area
                 Sex
                 Age in years
                 Age group (depending on schedule)
*/
define "Stratification 1":
	Elements."By Geographic Region Stratifier"

/*
@denominator: Number in target group
@pseudocode: As defined by the Member States
*/
define "Denominator":
  true

/*
 * As defined by Member State
 */
define "Initial Population":
  true

/**
 * @description: Gets a given immunization from a list that matches the dose number
 */
define fluent function getDose(immunizations List<Immunization>, doseNumber String):
  immunizations I where
    exists( I.protocolApplied pa where pa.doseNumber = doseNumber )

define function ToString(value string): value.value

define function ToString(value ImmunizationStatus): value.value

define function ToBoolean(value boolean): value.value

define function ToConcept(concept FHIR.CodeableConcept):
    if concept is null then
        null
    else
        System.Concept {
            codes: concept.coding C return ToCode(C),
            display: concept.text.value
        }

define function ToCode(coding FHIR.Coding):
    if coding is null then
        null
    else
        System.Code {
          code: coding.code.value,
          system: coding.system.value,
          version: coding.version.value,
          display: coding.display.value
        }

define function ToString(value AdministrativeGender): value.value

define function ToString(value AddressUse): value.value