Hook up fertility temp status to app

lib/cycle.js

@@ -1,16 +1,21 @@
 import * as joda from 'js-joda'
-
 const LocalDate = joda.LocalDate
 
-export default function config(opts = {}) {
+export default function config(opts) {
   let bleedingDaysSortedByDate
-  if (!opts.bleedingDaysSortedByDate) {
+  let temperatureDaysSortedByDate
+  let maxBreakInBleeding
+
+  if (!opts) {
     // we only want to require (and run) the db module when not running the tests
     bleedingDaysSortedByDate = require('../db').bleedingDaysSortedByDate
+    temperatureDaysSortedByDate = require('../db').temperatureDaysSortedByDate
+    maxBreakInBleeding = 1
   } else {
-    bleedingDaysSortedByDate = opts.bleedingDaysSortedByDate
+    bleedingDaysSortedByDate = opts.bleedingDaysSortedByDate || []
+    temperatureDaysSortedByDate = opts.temperatureDaysSortedByDate || []
+    maxBreakInBleeding = opts.maxBreakInBleeding || 1
   }
-  const maxBreakInBleeding = opts.maxBreakInBleeding || 1
 
   function getLastMensesStart(targetDateString) {
     const targetDate = LocalDate.parse(targetDateString)
@@ -53,13 +58,18 @@ export default function config(opts = {}) {
     return diffInDays + 1
   }
 
-  function getPreviousDaysInCycle() {
-    return []
+  function getPreviousTemperaturesInCycle(targetDateString, lastMensesStart) {
+    const startIndex = temperatureDaysSortedByDate.findIndex(day => day.date <= targetDateString)
+    const previousTemperaturesInCycle = temperatureDaysSortedByDate.slice(startIndex)
+    const endIndex = previousTemperaturesInCycle.findIndex(day => day.date < lastMensesStart.date)
+    return previousTemperaturesInCycle
+      .slice(0, endIndex)
+      .map(day => day.temperature.value)
   }
 
   return {
     getCycleDayNumber,
     getLastMensesStart,
-    getPreviousDaysInCycle
+    getPreviousTemperaturesInCycle
   }
 }

lib/sensiplan-adapter.js

@@ -0,0 +1,29 @@
+import { detectTemperatureShift } from './sensiplan'
+import cycleModule from './cycle'
+
+const getLastMensesStart = cycleModule().getLastMensesStart
+const getPreviousTemperaturesInCycle = cycleModule().getPreviousTemperaturesInCycle
+
+function getTemperatureFertilityStatus(targetDateString) {
+  const lastMensesStart = getLastMensesStart(targetDateString)
+  if (!lastMensesStart) return formatStatusForApp({ detected: false })
+  const previousTemperaturesInCycle = getPreviousTemperaturesInCycle(targetDateString, lastMensesStart)
+  // we get temps with latest first, but sensiplan module expects latest last
+  previousTemperaturesInCycle.reverse()
+  const status = detectTemperatureShift(previousTemperaturesInCycle)
+  return formatStatusForApp(status)
+}
+
+function formatStatusForApp(status) {
+  if (!status.detected) return 'fertile'
+  const dict = [
+    "regular temperature",
+    "first exception",
+    "second exception"
+  ]
+  return `infertile according to the ${dict[status.rule]} rule`
+}
+
+export {
+  getTemperatureFertilityStatus
+}

lib/sensiplan.js

@@ -31,7 +31,7 @@ function detectTemperatureShift(temperaturesOfCycle) {
     // if we do, remember the details and start collecting the high level temps
     acc.detected = true
     acc.high = [temp]
-    acc.rules = checkResult.rules
+    acc.rule = checkResult.rule
     acc.ltl = ltl
     acc.low = getSixTempsBefore(i)
 
@@ -57,9 +57,7 @@ function checkIfFirstHighMeasurement(temp, i, temps, ltl) {
   if (regularRuleApplies(temp, nextTemps, ltl)) {
     return {
       isFirstHighMeasurement: true,
-      rules: {
-        regular: true,
-      },
+      rule: 0,
       ltl
     }
   }
@@ -67,9 +65,7 @@ function checkIfFirstHighMeasurement(temp, i, temps, ltl) {
   if (firstExceptionRuleApplies(temp, nextTemps, ltl)) {
     return {
       isFirstHighMeasurement: true,
-      rules: {
-        firstException: true,
-      },
+      rule: 1,
       ltl
     }
   }
@@ -77,9 +73,7 @@ function checkIfFirstHighMeasurement(temp, i, temps, ltl) {
   if (secondExceptionRuleApplies(temp, nextTemps, ltl)) {
     return {
       isFirstHighMeasurement: true,
-      rules: {
-        secondException: true,
-      },
+      rule: 2,
       ltl
     }
   }