From d93561742a698bd4b5d9df3e6d79ffe20c0f3168 Mon Sep 17 00:00:00 2001
From: Thomas Citharel <tcit@tcit.fr>
Date: Mon, 14 Oct 2019 19:29:18 +0200
Subject: [PATCH] Better handle datetime

Signed-off-by: Thomas Citharel <tcit@tcit.fr>
---
 js/src/components/Event/DateTimePicker.vue    | 59 ++++++++++---------
 js/src/components/Event/EventFullDate.vue     | 25 +++++++-
 js/src/filters/datetime.ts                    |  9 ++-
 js/src/graphql/event.ts                       |  2 +
 js/src/i18n/en_US.json                        | 12 ++++
 js/src/i18n/fr_FR.json                        | 12 ++++
 js/src/types/event.model.ts                   |  4 ++
 js/src/views/Event/Edit.vue                   | 46 +++++++++++++--
 js/src/views/Event/Event.vue                  |  2 +-
 lib/mobilizon/events/event_options.ex         | 10 +++-
 lib/mobilizon_web/schema/event.ex             |  6 ++
 .../templates/email/event_updated.html.eex    |  2 +-
 .../templates/email/event_updated.text.eex    |  2 +-
 lib/service/activity_pub/converter/event.ex   |  2 +-
 lib/service/activity_pub/utils.ex             |  2 +-
 schema.graphql                                | 14 ++++-
 .../resolvers/event_resolver_test.exs         |  7 ++-
 17 files changed, 168 insertions(+), 48 deletions(-)

diff --git a/js/src/components/Event/DateTimePicker.vue b/js/src/components/Event/DateTimePicker.vue
index 8fd28b1af..b9fac5814 100644
--- a/js/src/components/Event/DateTimePicker.vue
+++ b/js/src/components/Event/DateTimePicker.vue
@@ -19,11 +19,18 @@
                 expanded
                 :first-day-of-week="parseInt($t('firstDayOfWeek'), 10)"
                 :min-date="minDate"
-                v-model="date"
+                v-model="dateWithoutTime"
                 :placeholder="$t('Click to select')"
                 icon="calendar"
         />
-        <b-input expanded type="time" required v-model="time" />
+        <b-timepicker
+                placeholder="Type or select a time..."
+                icon="clock"
+                v-model="dateWithTime"
+                expanded
+                size="is-small"
+                inline>
+        </b-timepicker>
     </b-field>
 </template>
 <script lang="ts">
@@ -53,40 +60,26 @@ export default class DateTimePicker extends Vue {
      */
   @Prop({ required: false, type: Date, default: null }) minDate!: Date;
 
-  date: Date = this.value;
-  time: string = '00:00';
+  dateWithoutTime: Date = this.value;
+  dateWithTime: Date = this.dateWithoutTime;
 
   localeShortWeekDayNamesProxy = localeShortWeekDayNames();
   localeMonthNamesProxy = localeMonthNames();
 
-  mounted() {
-    this.convertTime();
+  @Watch('value')
+  updateValue() {
+    this.dateWithoutTime = this.value;
+    this.dateWithTime = this.dateWithoutTime;
   }
 
-  convertTime() {
-    let minutes = this.date.getHours() * 60 + this.date.getMinutes();
-    minutes = Math.ceil(minutes / this.step) * this.step;
-
-    this.time = [Math.floor(minutes / 60), minutes % 60].map((v) => { return v < 10 ? `0${v}` : v; }).join(':');
-  }
-
-  @Watch('time')
-  updateTime(time: string) {
-    const [hours, minutes] = time.split(':', 2);
-    this.date.setHours(parseInt(hours, 10));
-    this.date.setMinutes(parseInt(minutes, 10));
+  @Watch('dateWithoutTime')
+  updateDateWithoutTimeWatcher() {
     this.updateDateTime();
   }
 
-  @Watch('date')
-  updateDate() {
-    this.updateTime(this.time);
-  }
-
-  @Watch('value')
-  updateValue() {
-    this.date = this.value;
-    this.convertTime();
+  @Watch('dateWithTime')
+  updateDateWithTimeWatcher() {
+    this.updateDateTime();
   }
 
   updateDateTime() {
@@ -95,7 +88,17 @@ export default class DateTimePicker extends Vue {
      *
      * @type {Date}
      */
-    this.$emit('input', this.date);
+    this.dateWithoutTime.setHours(this.dateWithTime.getHours());
+    this.dateWithoutTime.setMinutes(this.dateWithTime.getMinutes());
+    this.$emit('input', this.dateWithoutTime);
   }
 }
 </script>
+
+<style lang="scss" scoped>
+    .timepicker {
+        /deep/ .dropdown-content {
+            padding: 0;
+        }
+    }
+</style>
\ No newline at end of file
diff --git a/js/src/components/Event/EventFullDate.vue b/js/src/components/Event/EventFullDate.vue
index 15bc0f47d..8d6e1bb33 100644
--- a/js/src/components/Event/EventFullDate.vue
+++ b/js/src/components/Event/EventFullDate.vue
@@ -18,14 +18,31 @@
 </docs>
 
 <template>
-    <span v-if="!endsOn">{{ beginsOn | formatDateTimeString }}</span>
-    <span v-else-if="isSameDay()">
+    <span v-if="!endsOn">{{ beginsOn | formatDateTimeString(showStartTime) }}</span>
+    <span v-else-if="isSameDay() && showStartTime && showEndTime">
         {{ $t('On {date} from {startTime} to {endTime}', {date: formatDate(beginsOn), startTime: formatTime(beginsOn), endTime: formatTime(endsOn)}) }}
     </span>
-    <span v-else-if="endsOn">
+    <span v-else-if="isSameDay() && !showStartTime && showEndTime">
+        {{ $t('On {date} ending at {endTime}', {date: formatDate(beginsOn), endTime: formatTime(endsOn)}) }}
+    </span>
+    <span v-else-if="isSameDay() && showStartTime && !showEndTime">
+        {{ $t('On {date} starting at {startTime}', {date: formatDate(beginsOn), startTime: formatTime(beginsOn)}) }}
+    </span>
+    <span v-else-if="isSameDay()">
+        {{ $t('On {date}', {date: formatDate(beginsOn)}) }}
+    </span>
+    <span v-else-if="endsOn && showStartTime && showEndTime">
         {{ $t('From the {startDate} at {startTime} to the {endDate} at {endTime}',
         {startDate: formatDate(beginsOn), startTime: formatTime(beginsOn), endDate: formatDate(endsOn), endTime: formatTime(endsOn)}) }}
     </span>
+    <span v-else-if="endsOn && showStartTime">
+        {{ $t('From the {startDate} at {startTime} to the {endDate}',
+        {startDate: formatDate(beginsOn), startTime: formatTime(beginsOn), endDate: formatDate(endsOn)}) }}
+    </span>
+    <span v-else-if="endsOn">
+        {{ $t('From the {startDate} to the {endDate}',
+        {startDate: formatDate(beginsOn), endDate: formatDate(endsOn)}) }}
+    </span>
 </template>
 <script lang="ts">
 import { Component, Prop, Vue } from 'vue-property-decorator';
@@ -34,6 +51,8 @@ import { Component, Prop, Vue } from 'vue-property-decorator';
 export default class EventFullDate extends Vue {
   @Prop({ required: true }) beginsOn!: string;
   @Prop({ required: false }) endsOn!: string;
+  @Prop({ required: false, default: true }) showStartTime!: boolean;
+  @Prop({ required: false, default: true }) showEndTime!: boolean;
 
   formatDate(value) {
     if (!this.$options.filters) return;
diff --git a/js/src/filters/datetime.ts b/js/src/filters/datetime.ts
index 89b149476..78f6cc8e4 100644
--- a/js/src/filters/datetime.ts
+++ b/js/src/filters/datetime.ts
@@ -10,8 +10,13 @@ function formatTimeString(value: string): string {
   return parseDateTime(value).toLocaleTimeString(undefined, { hour: 'numeric', minute: 'numeric' });
 }
 
-function formatDateTimeString(value: string): string {
-  return parseDateTime(value).toLocaleTimeString(undefined, { weekday: 'long', year: 'numeric', month: 'long', day: 'numeric', hour: 'numeric', minute: 'numeric' });
+function formatDateTimeString(value: string, showTime: boolean = true): string {
+  const options = { weekday: 'long', year: 'numeric', month: 'long', day: 'numeric', hour: 'numeric', minute: 'numeric' };
+  if (showTime) {
+    options.hour = 'numeric';
+    options.minute = 'numeric';
+  }
+  return parseDateTime(value).toLocaleTimeString(undefined, options);
 }
 
 
diff --git a/js/src/graphql/event.ts b/js/src/graphql/event.ts
index 92edeeb36..3dc947bea 100644
--- a/js/src/graphql/event.ts
+++ b/js/src/graphql/event.ts
@@ -38,6 +38,8 @@ const optionsQuery = `
   maximumAttendeeCapacity,
   remainingAttendeeCapacity,
   showRemainingAttendeeCapacity,
+  showStartTime,
+  showEndTime,
   offers {
     price,
     priceCurrency,
diff --git a/js/src/i18n/en_US.json b/js/src/i18n/en_US.json
index b97834166..6d3181787 100644
--- a/js/src/i18n/en_US.json
+++ b/js/src/i18n/en_US.json
@@ -59,6 +59,8 @@
 	"Create": "Create",
 	"Creator": "Creator",
 	"Current identity has been changed to {identityName} in order to manage this event.": "Current identity has been changed to {identityName} in order to manage this event.",
+	"Date and time settings": "Date and time settings",
+	"Date parameters": "Date parameters",
 	"Delete event": "Delete event",
 	"Delete this identity": "Delete this identity",
 	"Delete your identity": "Delete your identity",
@@ -88,6 +90,7 @@
 	"Event edition": "Event edition",
 	"Event list": "Event list",
 	"Event not found.": "Event not found.",
+	"Event page settings": "Event page settings",
 	"Event to be confirmed": "Event to be confirmed",
 	"Event {eventTitle} deleted": "Event {eventTitle} deleted",
 	"Event {eventTitle} reported": "Event {eventTitle} reported",
@@ -103,6 +106,8 @@
 	"Forgot your password ?": "Forgot your password ?",
 	"From a birthday party with friends and family to a march for climate change, right now, our gatherings are <b>trapped inside the tech giants’ platforms</b>. How can we organize, how can we click “Attend,” without <b>providing private data</b> to Facebook or <b>locking ourselves up</b> inside MeetUp?": "From a birthday party with friends and family to a march for climate change, right now, our gatherings are <b>trapped inside the tech giants’ platforms</b>. How can we organize, how can we click “Attend,” without <b>providing private data</b> to Facebook or <b>locking ourselves up</b> inside MeetUp?",
 	"From the {startDate} at {startTime} to the {endDate} at {endTime}": "From the {startDate} at {startTime} to the {endDate} at {endTime}",
+	"From the {startDate} at {startTime} to the {endDate}": "From the {startDate} at {startTime} to the {endDate}",
+	"From the {startDate} to the {endDate}": "From the {startDate} to the {endDate}",
 	"Gather ⋅ Organize ⋅ Mobilize": "Gather ⋅ Organize ⋅ Mobilize",
 	"General information": "General information",
 	"Going as {name}": "Going as {name}",
@@ -150,14 +155,19 @@
 	"Name": "Name",
 	"New password": "New password",
 	"No address defined": "No address defined",
+	"No end date": "No end date",
 	"No events found": "No events found",
 	"No group found": "No group found",
 	"No groups found": "No groups found",
 	"No participants yet": "No participants yet",
 	"No results for \"{queryText}\"": "No results for \"{queryText}\"",
 	"Number of places": "Number of places",
+	"OK": "OK",
 	"Old password": "Old password",
+	"On {date} ending at {endTime}": "On {date} ending at {endTime}",
 	"On {date} from {startTime} to {endTime}": "On {date} from {startTime} to {endTime}",
+	"On {date} starting at {startTime}": "On {date} starting at {startTime}",
+	"On {date}": "On {date}",
 	"One person is going": "No one is going | One person is going | {approved} persons are going",
 	"Only accessible through link and search (private)": "Only accessible through link and search (private)",
 	"Opened reports": "Opened reports",
@@ -222,6 +232,8 @@
 	"Share this event": "Share this event",
 	"Show map": "Show map",
 	"Show remaining number of places": "Show remaining number of places",
+	"Show the time when the event begins": "Show the time when the event begins",
+	"Show the time when the event ends": "Show the time when the event ends",
 	"Sign up": "Sign up",
 	"Software to the people": "Software to the people",
 	"Starts on…": "Starts on…",
diff --git a/js/src/i18n/fr_FR.json b/js/src/i18n/fr_FR.json
index c32cc06b8..a5a1f2784 100644
--- a/js/src/i18n/fr_FR.json
+++ b/js/src/i18n/fr_FR.json
@@ -59,6 +59,8 @@
     "Create": "Créer",
     "Creator": "Créateur",
     "Current identity has been changed to {identityName} in order to manage this event.": "L'identité actuelle a été changée à {identityName} pour pouvoir gérer cet événement.",
+    "Date and time settings": "Paramètres de date et d'heure",
+    "Date parameters": "Paramètres de date",
     "Delete event": "Supprimer un événement",
     "Delete this identity": "Supprimer cette identité",
     "Delete your identity": "Supprimer votre identité",
@@ -88,6 +90,7 @@
     "Event edition": "Édition d'événement",
     "Event list": "Liste d'événements",
     "Event not found.": "Événement non trouvé.",
+    "Event page settings": "Paramètres de la page de l'événement",
     "Event to be confirmed": "Événement à confirmer",
     "Event {eventTitle} deleted": "Événement {eventTitle} supprimé",
     "Event {eventTitle} reported": "Événement {eventTitle} signalé",
@@ -103,6 +106,8 @@
     "Forgot your password ?": "Mot de passe oublié ?",
     "From a birthday party with friends and family to a march for climate change, right now, our gatherings are <b>trapped inside the tech giants’ platforms</b>. How can we organize, how can we click “Attend,” without <b>providing private data</b> to Facebook or <b>locking ourselves up</b> inside MeetUp?": "De l’anniversaire entre ami·e·s à une marche pour le climat, aujourd’hui, les bonnes raisons de se rassembler sont <b>captées par les géants du web</b>. Comment s’organiser, comment cliquer sur « je participe » sans <b>livrer des données intimes</b> à Facebook ou<b> s’enfermer</b> dans MeetUp ?",
     "From the {startDate} at {startTime} to the {endDate} at {endTime}": "Du {startDate} à {startTime} au {endDate} à {endTime}",
+    "From the {startDate} at {startTime} to the {endDate}": "Du {startDate} à {startTime} jusqu'au {endDate}",
+    "From the {startDate} to the {endDate}": "Du {startDate} au {endDate}",
     "Gather ⋅ Organize ⋅ Mobilize": "Rassembler ⋅ Organiser ⋅ Mobiliser",
     "General information": "Information générales",
     "Going as {name}": "En tant que {name}",
@@ -150,14 +155,19 @@
     "Name": "Nom",
     "New password": "Nouveau mot de passe",
     "No address defined": "Aucune adresse définie",
+    "No end date": "Pas de date de fin",
     "No events found": "Aucun événement trouvé",
     "No group found": "Aucun groupe trouvé",
     "No groups found": "Aucun groupe trouvé",
     "No participants yet": "Aucun⋅e participant⋅e pour le moment",
     "No results for \"{queryText}\"": "Pas de résultats pour « {queryText} »",
     "Number of places": "Nombre de places",
+    "OK": "OK",
     "Old password": "Ancien mot de passe",
+    "On {date} ending at {endTime}": "Le {date}, se terminant à {endTime}",
     "On {date} from {startTime} to {endTime}": "Le {date} de {startTime} à {endTime}",
+    "On {date} starting at {startTime}": "Le {date} à partir de {startTime}",
+    "On {date}": "Le {date}",
     "One person is going": "Personne n'y va | Une personne y va | {approved} personnes y vont",
     "Only accessible through link and search (private)": "Uniquement accessibles par lien et la recherche (privé)",
     "Opened reports": "Signalements ouverts",
@@ -222,6 +232,8 @@
     "Share this event": "Partager l'événement",
     "Show map": "Afficher la carte",
     "Show remaining number of places": "Afficher le nombre de places restantes",
+    "Show the time when the event begins": "Afficher l'heure de début de l'événement",
+    "Show the time when the event ends": "Afficher l'heure de fin de l'événement",
     "Sign up": "S'enregistrer",
     "Software to the people": "Software to the people",
     "Starts on…": "Débute le…",
diff --git a/js/src/types/event.model.ts b/js/src/types/event.model.ts
index fe2c427a7..05bb1577f 100644
--- a/js/src/types/event.model.ts
+++ b/js/src/types/event.model.ts
@@ -147,6 +147,8 @@ export interface IEventOptions {
   program: string;
   commentModeration: CommentModeration;
   showParticipationPrice: boolean;
+  showStartTime: boolean;
+  showEndTime: boolean;
 }
 
 export class EventOptions implements IEventOptions {
@@ -159,6 +161,8 @@ export class EventOptions implements IEventOptions {
   program = '';
   commentModeration = CommentModeration.ALLOW_ALL;
   showParticipationPrice = false;
+  showStartTime = true;
+  showEndTime = true;
 }
 
 export class EventModel implements IEvent {
diff --git a/js/src/views/Event/Edit.vue b/js/src/views/Event/Edit.vue
index 88fdc8c55..b4bd60f77 100644
--- a/js/src/views/Event/Edit.vue
+++ b/js/src/views/Event/Edit.vue
@@ -21,8 +21,10 @@
 
           <tag-input v-model="event.tags" :data="tags" path="title" />
 
-          <date-time-picker v-model="event.beginsOn" :label="$t('Starts on…')" :step="15"/>
-          <date-time-picker :min-date="minDateForEndsOn" v-model="event.endsOn" :label="$t('Ends on…')" :step="15" />
+          <date-time-picker v-model="event.beginsOn" :label="$t('Starts on…')" />
+          <date-time-picker :min-date="minDateForEndsOn" v-model="event.endsOn" :label="$t('Ends on…')" />
+<!--          <b-switch v-model="endsOnNull">{{ $t('No end date') }}</b-switch>-->
+          <b-button type="is-text" @click="dateSettingsIsOpen = true">{{ $t('Date parameters')}}</b-button>
 
           <address-auto-complete v-model="event.physicalAddress" />
 
@@ -166,6 +168,31 @@
         </form>
       </div>
     </div>
+    <b-modal :active.sync="dateSettingsIsOpen" has-modal-card trap-focus>
+      <form action="">
+        <div class="modal-card" style="width: auto">
+          <header class="modal-card-head">
+            <p class="modal-card-title">{{ $t('Date and time settings') }}</p>
+          </header>
+          <section class="modal-card-body">
+            <b-field :label="$t('Event page settings')">
+              <b-switch v-model="event.options.showStartTime">
+                {{ $t('Show the time when the event begins') }}
+              </b-switch>
+            </b-field>
+            <b-field>
+              <b-switch v-model="event.options.showEndTime">
+                {{ $t('Show the time when the event ends') }}
+              </b-switch>
+            </b-field>
+
+          </section>
+          <footer class="modal-card-foot">
+            <button class="button" type="button" @click="dateSettingsIsOpen = false">{{ $t('OK') }}</button>
+          </footer>
+        </div>
+      </form>
+    </b-modal>
     <span ref="bottomObserver"></span>
     <nav role="navigation" aria-label="main navigation" class="navbar" :class="{'is-fixed-bottom': showFixedNavbar }">
       <div class="container">
@@ -302,6 +329,8 @@ export default class EditEvent extends Vue {
   CommentModeration = CommentModeration;
   showFixedNavbar: boolean = true;
   observer!: IntersectionObserver;
+  dateSettingsIsOpen: boolean = false;
+  endsOnNull: boolean = false;
 
   // categories: string[] = Object.keys(Category);
 
@@ -505,6 +534,10 @@ export default class EditEvent extends Vue {
       delete this.event.physicalAddress['__typename'];
     }
 
+    if (this.endsOnNull) {
+      res.endsOn = null;
+    }
+
     const pictureObj = buildFileVariable(this.pictureFile, 'picture');
     res = Object.assign({}, res, pictureObj);
 
@@ -527,6 +560,9 @@ export default class EditEvent extends Vue {
       },
     });
 
+    if (result.data.event.endsOn === null) {
+      this.endsOnNull = true;
+    }
     return new EventModel(result.data.event);
   }
 
@@ -588,17 +624,17 @@ export default class EditEvent extends Vue {
 
   get beginsOn() { return this.event.beginsOn; }
 
-  @Watch('beginsOn')
+  @Watch('beginsOn', { deep: true })
   onBeginsOnChanged(beginsOn) {
     if (!this.event.endsOn) return;
     const dateBeginsOn = new Date(beginsOn);
     const dateEndsOn = new Date(this.event.endsOn);
     if (dateEndsOn < dateBeginsOn) {
       this.event.endsOn = dateBeginsOn;
-      this.event.endsOn.setUTCHours(dateEndsOn.getUTCHours());
+      this.event.endsOn.setHours(dateEndsOn.getHours());
     }
     if (dateEndsOn === dateBeginsOn) {
-      this.event.endsOn.setUTCHours(dateEndsOn.getUTCHours() + 1);
+      this.event.endsOn.setHours(dateEndsOn.getHours() + 1);
     }
   }
 
diff --git a/js/src/views/Event/Event.vue b/js/src/views/Event/Event.vue
index 828d2061e..703c443e5 100644
--- a/js/src/views/Event/Event.vue
+++ b/js/src/views/Event/Event.vue
@@ -64,7 +64,7 @@ import {ParticipantRole} from "@/types/event.model";
                 <div class="date-and-add-to-calendar">
                   <div class="date-and-privacy" v-if="event.beginsOn">
                     <b-icon icon="calendar-clock" />
-                    <event-full-date :beginsOn="event.beginsOn" :endsOn="event.endsOn" />
+                    <event-full-date :beginsOn="event.beginsOn" :show-start-time="event.options.showStartTime" :show-end-time="event.options.showEndTime" :endsOn="event.endsOn" />
                   </div>
                   <a class="add-to-calendar" @click="downloadIcsEvent()" v-if="!event.draft">
                     <b-icon icon="calendar-plus" />
diff --git a/lib/mobilizon/events/event_options.ex b/lib/mobilizon/events/event_options.ex
index e68a026ff..422a5a381 100644
--- a/lib/mobilizon/events/event_options.ex
+++ b/lib/mobilizon/events/event_options.ex
@@ -22,7 +22,9 @@ defmodule Mobilizon.Events.EventOptions do
           comment_moderation: CommentModeration.t(),
           show_participation_price: boolean,
           offers: [EventOffer.t()],
-          participation_condition: [EventParticipationCondition.t()]
+          participation_condition: [EventParticipationCondition.t()],
+          show_start_time: boolean,
+          show_end_time: boolean
         }
 
   @attrs [
@@ -32,7 +34,9 @@ defmodule Mobilizon.Events.EventOptions do
     :attendees,
     :program,
     :comment_moderation,
-    :show_participation_price
+    :show_participation_price,
+    :show_start_time,
+    :show_end_time
   ]
 
   @primary_key false
@@ -45,6 +49,8 @@ defmodule Mobilizon.Events.EventOptions do
     field(:program, :string)
     field(:comment_moderation, CommentModeration)
     field(:show_participation_price, :boolean)
+    field(:show_start_time, :boolean)
+    field(:show_end_time, :boolean)
 
     embeds_many(:offers, EventOffer)
     embeds_many(:participation_condition, EventParticipationCondition)
diff --git a/lib/mobilizon_web/schema/event.ex b/lib/mobilizon_web/schema/event.ex
index 53fe860e9..aeb934387 100644
--- a/lib/mobilizon_web/schema/event.ex
+++ b/lib/mobilizon_web/schema/event.ex
@@ -181,6 +181,9 @@ defmodule MobilizonWeb.Schema.EventType do
     field(:show_participation_price, :boolean,
       description: "Whether or not to show the participation price"
     )
+
+    field(:show_start_time, :boolean, description: "Show event start time")
+    field(:show_end_time, :boolean, description: "Show event end time")
   end
 
   input_object :event_options_input do
@@ -214,6 +217,9 @@ defmodule MobilizonWeb.Schema.EventType do
     field(:show_participation_price, :boolean,
       description: "Whether or not to show the participation price"
     )
+
+    field(:show_start_time, :boolean, description: "Show event start time")
+    field(:show_end_time, :boolean, description: "Show event end time")
   end
 
   object :event_queries do
diff --git a/lib/mobilizon_web/templates/email/event_updated.html.eex b/lib/mobilizon_web/templates/email/event_updated.html.eex
index 369e86e1e..ce5d9b2da 100644
--- a/lib/mobilizon_web/templates/email/event_updated.html.eex
+++ b/lib/mobilizon_web/templates/email/event_updated.html.eex
@@ -76,7 +76,7 @@
                         </td>
                       </tr>
                     <% end %>
-                    <%= if MapSet.member?(@changes, :ends_on) do %>
+                    <%= if MapSet.member?(@changes, :ends_on) && !is_nil(@event.ends_on) do %>
                       <tr>
                         <td bgcolor="#ffffff" align="left">
                           <%= gettext "Ending of event" %>
diff --git a/lib/mobilizon_web/templates/email/event_updated.text.eex b/lib/mobilizon_web/templates/email/event_updated.text.eex
index 31a64c918..8a2128de1 100644
--- a/lib/mobilizon_web/templates/email/event_updated.text.eex
+++ b/lib/mobilizon_web/templates/email/event_updated.text.eex
@@ -12,7 +12,7 @@
     <%= gettext "New date and time for start of event: %{begins_on}", begins_on: datetime_to_string(@event.begins_on, @locale) %>
 <% end %>
 
-<%= if MapSet.member?(@changes, :ends_on) do %>
+<%= if MapSet.member?(@changes, :ends_on) && !is_nil(@event.ends_on) do %>
     <%= gettext "New date and time for ending of event: %{ends_on}", ends_on: datetime_to_string(@event.ends_on, @locale) %>
 <% end %>
 
diff --git a/lib/service/activity_pub/converter/event.ex b/lib/service/activity_pub/converter/event.ex
index 97ebe344c..cfc990f94 100644
--- a/lib/service/activity_pub/converter/event.ex
+++ b/lib/service/activity_pub/converter/event.ex
@@ -138,7 +138,7 @@ defmodule Mobilizon.Service.ActivityPub.Converter.Event do
       |> Enum.map(&Utils.camelize/1)
 
     Enum.reduce(object, %{}, fn {key, value}, acc ->
-      (value && key in keys && Map.put(acc, Utils.underscore(key), value)) ||
+      (!is_nil(value) && key in keys && Map.put(acc, Utils.underscore(key), value)) ||
         acc
     end)
   end
diff --git a/lib/service/activity_pub/utils.ex b/lib/service/activity_pub/utils.ex
index 5b87eafa0..8f4818d8f 100644
--- a/lib/service/activity_pub/utils.ex
+++ b/lib/service/activity_pub/utils.ex
@@ -346,7 +346,7 @@ defmodule Mobilizon.Service.ActivityPub.Utils do
       options = Events.EventOptions |> struct(metadata.options) |> Map.from_struct()
 
       Enum.reduce(options, res, fn {key, value}, acc ->
-        (value && Map.put(acc, camelize(key), value)) ||
+        (!is_nil(value) && Map.put(acc, camelize(key), value)) ||
           acc
       end)
     end
diff --git a/schema.graphql b/schema.graphql
index cb28dcb8b..9e139a44a 100644
--- a/schema.graphql
+++ b/schema.graphql
@@ -1,5 +1,5 @@
 # source: http://localhost:4000/api
-# timestamp: Mon Oct 14 2019 10:27:57 GMT+0200 (Central European Summer Time)
+# timestamp: Mon Oct 14 2019 19:26:36 GMT+0200 (Central European Summer Time)
 
 schema {
   query: RootQueryType
@@ -400,11 +400,17 @@ type EventOptions {
   """The number of remaining seats for this event"""
   remainingAttendeeCapacity: Int
 
+  """Show event end time"""
+  showEndTime: Boolean
+
   """Whether or not to show the participation price"""
   showParticipationPrice: Boolean
 
   """Whether or not to show the number of remaining seats for this event"""
   showRemainingAttendeeCapacity: Boolean
+
+  """Show event start time"""
+  showStartTime: Boolean
 }
 
 input EventOptionsInput {
@@ -429,11 +435,17 @@ input EventOptionsInput {
   """The number of remaining seats for this event"""
   remainingAttendeeCapacity: Int
 
+  """Show event end time"""
+  showEndTime: Boolean
+
   """Whether or not to show the participation price"""
   showParticipationPrice: Boolean
 
   """Whether or not to show the number of remaining seats for this event"""
   showRemainingAttendeeCapacity: Boolean
+
+  """Show event start time"""
+  showStartTime: Boolean
 }
 
 type EventParticipationCondition {
diff --git a/test/mobilizon_web/resolvers/event_resolver_test.exs b/test/mobilizon_web/resolvers/event_resolver_test.exs
index 92ef26fce..53f77b971 100644
--- a/test/mobilizon_web/resolvers/event_resolver_test.exs
+++ b/test/mobilizon_web/resolvers/event_resolver_test.exs
@@ -229,7 +229,8 @@ defmodule MobilizonWeb.Resolvers.EventResolverTest do
                   category: "super_category",
                   options: {
                     maximumAttendeeCapacity: 30,
-                    showRemainingAttendeeCapacity: true
+                    showRemainingAttendeeCapacity: true,
+                    showEndTime: false
                   }
               ) {
                 title,
@@ -246,7 +247,8 @@ defmodule MobilizonWeb.Resolvers.EventResolverTest do
                 category,
                 options {
                   maximumAttendeeCapacity,
-                  showRemainingAttendeeCapacity
+                  showRemainingAttendeeCapacity,
+                  showEndTime
                 }
               }
             }
@@ -273,6 +275,7 @@ defmodule MobilizonWeb.Resolvers.EventResolverTest do
       assert event["category"] == "super_category"
       assert event["options"]["maximumAttendeeCapacity"] == 30
       assert event["options"]["showRemainingAttendeeCapacity"] == true
+      assert event["options"]["showEndTime"] == false
     end
 
     test "create_event/3 creates an event with tags", %{conn: conn, actor: actor, user: user} do