Merge branch '139-next-period-reminder' into 'master'

Resolve "next period reminder"

Closes #139

See merge request bloodyhealth/drip!87

components/labels.js

@@ -57,6 +57,11 @@ export const settings = {
     timeSet: time => `Daily reminder set for ${time}`,
     notification: 'Record your morning temperature'
   },
+  periodReminder: {
+    title: 'Next period reminder',
+    reminderText: 'Get a notification 3 days before your next period is likely to start.',
+    notification: daysToEndOfPrediction => `Your next period is likely to start in 3 to ${daysToEndOfPrediction} days.`
+  },
   passwordSettings: {
     title: 'App password',
     explainerDisabled: "Encrypt the app's database with a password. You need to enter the password every time the app is started.",

components/settings/index.js

@@ -8,6 +8,7 @@ import styles from '../../styles/index'
 import { settings as labels } from '../labels'
 import { AppText } from '../app-text'
 import TempReminderPicker from './temp-reminder-picker'
+import PeriodReminderPicker from './period-reminder'
 import TempSlider from './temp-slider'
 import openImportDialogAndImport from './import-dialog'
 import openShareDialogAndExport from './export-dialog'
@@ -30,6 +31,7 @@ export default class Settings extends Component {
           <AppText>{labels.tempScale.segmentExplainer}</AppText>
           <TempSlider/>
         </View>
+        <PeriodReminderPicker/>
         <PasswordSetting />
         <View style={styles.settingsSegment}>
           <AppText style={styles.settingsSegmentTitle}>

components/settings/period-reminder.js

@@ -0,0 +1,41 @@
+import React, { Component } from 'react'
+import {
+  View,
+  Switch
+} from 'react-native'
+import { AppText } from '../app-text'
+import {
+  periodReminderObservable,
+  savePeriodReminder
+} from '../../local-storage'
+import styles from '../../styles/index'
+import { settings as labels } from '../labels'
+
+export default class PeriodReminderPicker extends Component {
+  constructor(props) {
+    super(props)
+    this.state = periodReminderObservable.value
+  }
+
+  render() {
+    return (
+      <View style={styles.settingsSegment}>
+        <AppText style={styles.settingsSegmentTitle}>
+          {labels.periodReminder.title}
+        </AppText>
+        <View style={{ flexDirection: 'row', alignItems: 'center' }}>
+          <View style={{ flex: 1 }}>
+            <AppText>{labels.periodReminder.reminderText}</AppText>
+          </View>
+          <Switch
+            value={this.state.enabled}
+            onValueChange={switchOn => {
+              this.setState({ enabled: switchOn })
+              savePeriodReminder({enabled: switchOn})
+            }}
+          />
+        </View>
+      </View>
+    )
+  }
+}

lib/notifications.js

@@ -1,21 +1,26 @@
-import {tempReminderObservable} from '../local-storage'
+import {tempReminderObservable, periodReminderObservable} from '../local-storage'
 import Notification from 'react-native-push-notification'
 import { LocalDate } from 'js-joda'
 import Moment from 'moment'
 import { settings as labels } from '../components/labels'
-import { getOrCreateCycleDay } from '../db'
+import { getOrCreateCycleDay, getBleedingDaysSortedByDate } from '../db'
+import cycleModule from './cycle'
 
 export default function setupNotifications(navigate) {
   Notification.configure({
-    onNotification: () => {
-      const todayDateString = LocalDate.now().toString()
-      const cycleDay = getOrCreateCycleDay(todayDateString)
-      navigate('TemperatureEditView', { cycleDay })
+    onNotification: (notification) => {
+      if (notification.id === '1') {
+        const todayDateString = LocalDate.now().toString()
+        const cycleDay = getOrCreateCycleDay(todayDateString)
+        navigate('TemperatureEditView', { cycleDay })
+      } else {
+        navigate('Home')
+      }
     }
   })
 
   tempReminderObservable(reminder => {
-    Notification.cancelAllLocalNotifications()
+    Notification.cancelLocalNotifications({id: '1'})
     if (reminder.enabled) {
       const [hours, minutes] = reminder.time.split(':')
       let target = new Moment()
@@ -28,6 +33,7 @@ export default function setupNotifications(navigate) {
       }
 
       Notification.localNotificationSchedule({
+        id: '1',
         message: labels.tempReminder.notification,
         date: target.toDate(),
         vibrate: false,
@@ -35,4 +41,37 @@ export default function setupNotifications(navigate) {
       })
     }
   })
+
+  periodReminderObservable(reminder => {
+    Notification.cancelLocalNotifications({id: '2'})
+    if (reminder.enabled) setupPeriodReminder()
+  })
+
+  getBleedingDaysSortedByDate().addListener(() => {
+    Notification.cancelLocalNotifications({id: '2'})
+    if (periodReminderObservable.value.enabled) setupPeriodReminder()
+  })
+
+}
+
+function setupPeriodReminder() {
+  const bleedingPrediction = cycleModule().getPredictedMenses()
+  if (bleedingPrediction.length > 0) {
+    const bleedingStart = Moment(bleedingPrediction[0][0], "YYYY-MM-DD")
+    // 3 days before and at 6 am
+    const reminderDate = bleedingStart
+      .subtract(3, 'days')
+      .hours(6)
+      .minutes(0)
+      .seconds(0)
+    // period is likely to start in 3 to 3 + (length of prediction - 1) days
+    const daysToEndOfPrediction = bleedingPrediction[0].length + 2
+
+    Notification.localNotificationSchedule({
+      id: '2',
+      message: labels.periodReminder.notification(daysToEndOfPrediction),
+      date: reminderDate.toDate(),
+      vibrate: false
+    })
+  }
 }

local-storage/index.js

@@ -34,6 +34,16 @@ export async function saveTempReminder(reminder) {
   tempReminderObservable.set(reminder)
 }
 
+export const periodReminderObservable = Observable()
+setObvWithInitValue('periodReminder', periodReminderObservable, {
+  enabled: false
+})
+
+export async function savePeriodReminder(reminder) {
+  await AsyncStorage.setItem('periodReminder', JSON.stringify(reminder))
+  periodReminderObservable.set(reminder)
+}
+
 export const hasEncryptionObservable = Observable()
 setObvWithInitValue('hasEncryption', hasEncryptionObservable, false)