delete button working (#274)

Fixes #274.

src/backends/github/API.js

@@ -314,6 +314,14 @@ export default class API {
     .then(updatedMetadata => this.storeMetadata(contentKey, updatedMetadata));
   }
 
+  deleteUnpublishedEntry(collection, slug) {
+    const contentKey = slug;
+    let prNumber; 
+    return this.retrieveMetadata(contentKey)
+    .then(metadata => this.closePR(metadata.pr, metadata.objects))
+    .then(() => this.deleteBranch(`cms/${ contentKey }`));
+  }
+
   publishUnpublishedEntry(collection, slug) {
     const contentKey = slug;
     let prNumber;
@@ -367,6 +375,18 @@ export default class API {
     });
   }
 
+  closePR(pullrequest, objects) {
+    const headSha = pullrequest.head;
+    const prNumber = pullrequest.number;
+    console.log("%c Deleting PR", "line-height: 30px;text-align: center;font-weight: bold"); // eslint-disable-line
+    return this.request(`${ this.repoURL }/pulls/${ prNumber }`, {
+      method: "PATCH",
+      body: JSON.stringify({
+        state: closed,
+      }),
+    });
+  }
+
   mergePR(pullrequest, objects) {
     const headSha = pullrequest.head;
     const prNumber = pullrequest.number;

src/backends/github/implementation.js

@@ -135,6 +135,9 @@ export default class GitHub {
     return this.api.updateUnpublishedEntryStatus(collection, slug, newStatus);
   }
 
+  deleteUnpublishedEntry(collection, slug) {
+    return this.api.deleteUnpublishedEntry(collection, slug);
+  }
   publishUnpublishedEntry(collection, slug) {
     return this.api.publishUnpublishedEntry(collection, slug);
   }