[FIX] survey: better datetime picker & fix date format issues

Issue

    - Install Surveys & Website
    - Create a survey with a datetime question
    - Install Spanish lang & set it up on website as the only language
    - Surveys > Your survey > Test

    Traceback

Cause

    There is a format mismatch because of field_utils.format.datetime
    but it's needed for timezone offsets.

Solution

    Format the field_utils.format.datetime result's into
    the datetimepicker format.

    I re-organized this part because it was a bit confusing and
    it handles error now.

OPW-2167397

closes odoo/odoo#43912

X-original-commit: b368b1db4a998a2369185218fe19fb84874f77ab
Signed-off-by: Jason Van Malder (jvm) <jvm@odoo.com>

addons/survey/i18n/survey.pot

@@ -2207,6 +2207,20 @@ msgstr ""
 msgid "The badge for each survey should be unique!"
 msgstr ""
 
+#. module: survey
+#. openerp-web
+#: code:addons/survey/static/src/js/survey.js:0
+#, python-format
+msgid "The date you selected is greater than the maximum date: "
+msgstr ""
+
+#. module: survey
+#. openerp-web
+#: code:addons/survey/static/src/js/survey.js:0
+#, python-format
+msgid "The date you selected is lower than the minimum date: "
+msgstr ""
+
 #. module: survey
 #: model:ir.model.fields,help:survey.field_survey_survey__description
 msgid ""

addons/survey/static/src/js/survey_form.js

@@ -5,9 +5,11 @@ var field_utils = require('web.field_utils');
 var publicWidget = require('web.public.widget');
 var time = require('web.time');
 var core = require('web.core');
-var _t = core._t;
+var Dialog = require('web.Dialog');
 var dom = require('web.dom');
 
+var _t = core._t;
+
 publicWidget.registry.SurveyFormWidget = publicWidget.Widget.extend({
     selector: '.o_survey_form',
     events: {
@@ -611,12 +613,9 @@ publicWidget.registry.SurveyFormWidget = publicWidget.Widget.extend({
     * Initialize datetimepicker in correct format and with constraints
     */
     _initDateTimePicker: function ($dateGroup) {
-        var disabledDates = [];
-
-        var minDateData = $dateGroup.data('mindate');
-        var minDate = minDateData ? this._formatDateTime(minDateData) : moment({ y: 1900 });
-        var maxDateData = $dateGroup.data('maxdate');
-        var maxDate = maxDateData ? this._formatDateTime(maxDateData) : moment().add(200, "y");
+        var disabledDates = []
+        var minDateData = $dateGroup.data('mindate')
+        var maxDateData = $dateGroup.data('maxdate')
 
         var datetimepickerFormat = time.getLangDateFormat();
         if ($dateGroup.find('input').data('questionType') === 'datetime') {
@@ -628,13 +627,20 @@ publicWidget.registry.SurveyFormWidget = publicWidget.Widget.extend({
             disabledDates = [minDate, maxDate];
         }
 
+        var minDate = minDateData
+                        ? this._formatDateTime(minDateData, datetimepickerFormat)
+                        : moment({ y: 1900 });
+        var maxDate = maxDateData
+                        ? this._formatDateTime(maxDateData, datetimepickerFormat)
+                        : moment().add(200, "y");
+
         $dateGroup.datetimepicker({
             format : datetimepickerFormat,
             minDate: minDate,
             maxDate: maxDate,
             disabledDates: disabledDates,
             useCurrent: false,
-            viewDate: moment(new Date()).hours(0).minutes(0).seconds(0).milliseconds(0),
+            viewDate: moment(new Date()).hours(minDate.hours()).minutes(minDate.minutes()).seconds(minDate.seconds()).milliseconds(minDate.milliseconds()),
             calendarWeeks: true,
             icons: {
                 time: 'fa fa-clock-o',
@@ -647,13 +653,22 @@ publicWidget.registry.SurveyFormWidget = publicWidget.Widget.extend({
             locale : moment.locale(),
             allowInputToggle: true,
         });
-        $dateGroup.on('error.datetimepicker', function () {
+        $dateGroup.on('error.datetimepicker', function (err) {
+            if (err.date) {
+                if (err.date < minDate) {
+                    Dialog.alert(this, _t('The date you selected is lower than the minimum date: ') + minDate.format(datetimepickerFormat));
+                }
+
+                if (err.date > maxDate) {
+                    Dialog.alert(this, _t('The date you selected is greater than the maximum date: ') + maxDate.format(datetimepickerFormat));
+                }
+            }
             return false;
         });
     },
 
-    _formatDateTime: function (datetimeValue) {
-        return field_utils.format.datetime(moment(datetimeValue), null, {timezone: true});
+    _formatDateTime: function (datetimeValue, format){
+        return moment(field_utils.format.datetime(moment(datetimeValue), null, {timezone: true}), format);
     },
 
     _initResultWidget: function () {