Updated publish complete step copy

refs https://github.com/TryGhost/Team/issues/1598

- pre-fetch post count when reaching the confirm step so it's available once save is complete
- updated copy on complete step to reflect the action that occurred, including the number of published posts when a post was published
- added `{{is-moment-today someDate}}` helper so we can switch between "today" and another date format

ghost/admin/app/components/editor-labs/modals/publish-flow.hbs

@@ -17,6 +17,7 @@
         {{else if this.isComplete}}
             <EditorLabs::Modals::PublishFlow::Complete
                 @publishOptions={{@data.publishOptions}}
+                @postCount={{this.postCount}}
                 @close={{@close}}
             />
         {{else}}

ghost/admin/app/components/editor-labs/modals/publish-flow.js

@@ -1,5 +1,6 @@
 import Component from '@glimmer/component';
 import {action} from '@ember/object';
+import {inject as service} from '@ember/service';
 import {task} from 'ember-concurrency';
 import {tracked} from '@glimmer/tracking';
 
@@ -10,8 +11,11 @@ export default class PublishModalComponent extends Component {
         ignoreBackdropClick: true
     };
 
+    @service store;
+
     @tracked isConfirming = false;
     @tracked isComplete = false;
+    @tracked postCount = null;
 
     get recipientType() {
         const filter = this.args.data.publishOptions.recipientFilter;
@@ -37,8 +41,11 @@ export default class PublishModalComponent extends Component {
 
     @action
     toggleConfirm() {
-        // TODO: validate?
         this.isConfirming = !this.isConfirming;
+
+        if (this.isConfirming) {
+            this.fetchPostCountTask.perform();
+        }
     }
 
     @task
@@ -48,4 +55,23 @@ export default class PublishModalComponent extends Component {
         this.isConfirming = false;
         this.isComplete = true;
     }
+
+    // we fetch the new post count in advance when reaching the confirm step
+    // to avoid a copy flash when reaching the complete step
+    @task
+    *fetchPostCountTask() {
+        const publishOptions = this.args.data.publishOptions;
+
+        // no count is shown for pages, scheduled posts, or email-only posts
+        if (publishOptions.post.isPage || publishOptions.isScheduled || !publishOptions.willPublish) {
+            return;
+        }
+
+        const result = yield this.store.query('post', {limit: 1});
+        let count = result.meta.pagination.total;
+
+        count += 1; // account for the new post
+
+        this.postCount = count;
+    }
 }

ghost/admin/app/components/editor-labs/modals/publish-flow/complete.hbs

@@ -1,6 +1,37 @@
 {{#let @publishOptions.post as |post|}}
     <div class="gh-publish-title">
-        <span class="green">Boom. It’s out there.</span> That’s 391 posts published, keep going!
+        {{#if post.isScheduled}}
+            <span class="green">All set!</span>
+
+            Your {{if post.emailOnly "email" post.displayName}} will be
+
+            {{#if post.emailOnly}}
+                sent
+            {{else if post.willEmail}}
+                published and sent
+            {{else}}
+                published
+            {{/if}}
+
+            {{#let (moment-site-tz post.publishedAtUTC) as |scheduledAt|}}
+                {{#if (is-moment-today scheduledAt)}}
+                    today
+                {{else}}
+                    on {{moment-format scheduledAt "MMMM Do"}}
+                {{/if}}
+                at {{moment-format scheduledAt "HH:mm"}}
+            {{/let}}
+        {{else}}
+            <span class="green">Boom. It’s out there.</span>
+
+            {{#if post.emailOnly}}
+                Your email has been sent.
+            {{else if (and post.isPost @postCount)}}
+                That’s {{@postCount}} posts published, keep going!
+            {{else}}
+                Your {{post.displayName}} has been published.
+            {{/if}}
+        {{/if}}
     </div>
 
     <div class="gh-publish-cta">

ghost/admin/app/helpers/is-moment-today.js

@@ -0,0 +1,14 @@
+import Helper from '@ember/component/helper';
+import moment from 'moment';
+import {inject as service} from '@ember/service';
+
+export default class MomentSiteTz extends Helper {
+    @service settings;
+
+    compute([date]) {
+        const today = moment().tz(this.settings.get('timezone'));
+        const dateMoment = moment.tz(date, this.settings.get('timezone'));
+
+        return dateMoment.isSame(today, 'day');
+    }
+}