Toggles yank/unyank button

Author: thiagoarrais

app/controllers/crate/version.js

@@ -156,4 +156,8 @@ export default Controller.extend({
   yankVersionTask: task(function* (version) {
     return version.yank.perform();
   }),
+
+  unyankVersionTask: task(function* (version) {
+    return version.unyank.perform();
+  }),
 });

app/models/version.js

@@ -70,4 +70,14 @@ export default class Version extends Model {
     return yield response.text();
   }).keepLatest())
   yank;
+
+  @(task(function* () {
+    let response = yield fetch(`/api/v1/crates/${this.crate.id}/${this.num}/unyank`, { method: 'PUT' });
+    if (!response.ok) {
+      throw new Error(`Yank request for ${this.crateName} v${this.num} failed`);
+    }
+
+    return yield response.text();
+  }).keepLatest())
+  unyank;
 }

app/templates/crate/version.hbs

@@ -168,11 +168,16 @@
                   {{ version.num }}
                 </LinkTo>
                 {{moment-format version.created_at 'll'}}
-                {{#if version.yanked}}
-                  <span local-class='yanked'>yanked</span>
-                {{/if}}
                 {{#if isOwner}}
-                  <button type="button" local-class="remove-button" {{on "click" (perform this.yankVersionTask version)}}>Yank</button>
+                  {{#if version.yanked}}
+                    <button type="button" local-class="remove-button" {{on "click" (perform this.unyankVersionTask version)}}>Unyank</button>
+                  {{else}}
+                    <button type="button" local-class="remove-button" {{on "click" (perform this.yankVersionTask version)}}>Yank</button>
+                  {{/if}}
+                {{else}}
+                  {{#if version.yanked}}
+                    <span local-class='yanked'>yanked</span>
+                  {{/if}}
                 {{/if}}
               </li>
             {{/each}}