fixed #closed #435

src/screens/editor/container/editorContainer.js

@@ -291,7 +291,19 @@ class EditorContainer extends Component {
       const meta = extractMetadata(fields.body);
       const jsonMeta = makeJsonMetadata(meta, fields.tags);
       // TODO: check if permlink is available github: #314 https://github.com/esteemapp/esteem-mobile/pull/314
-      const permlink = generatePermlink(fields.title);
+      let permlink = generatePermlink(fields.title);
+
+      let dublicatePost;
+      try {
+        dublicatePost = await getPurePost(currentAccount.name, permlink);
+      } catch (e) {
+        dublicatePost = null;
+      }
+
+      if (dublicatePost && dublicatePost.id) {
+        permlink = generatePermlink(fields.title, true);
+      }
+
       const author = currentAccount.name;
       const options = makeOptions(author, permlink);
       const parentPermlink = fields.tags[0];

src/utils/editor.js

@@ -3,11 +3,13 @@ import { diff_match_patch } from 'diff-match-patch';
 
 export const getWordsCount = text => (text && typeof text === 'string' ? text.replace(/^\s+|\s+$/g, '').split(/\s+/).length : 0);
 
-export const generatePermlink = (title, random = false) => {
-  if (title) {
-    const slug = getSlug(title);
-    let perm = slug.toString();
+const permlinkRnd = () => (Math.random() + 1).toString(16).substring(2);
 
+export const generatePermlink = (title, random = false) => {
+  const slug = getSlug(title);
+  let perm = slug.toString();
+
+  if (title) {
     if (random) {
       const rnd = (Math.random() + 1).toString(16).substring(2);
       perm = `${slug.toString()}-${rnd}est`;
@@ -20,9 +22,13 @@ export const generatePermlink = (title, random = false) => {
 
     // only letters numbers and dashes
     perm = perm.toLowerCase().replace(/[^a-z0-9-]+/g, '');
-    return perm;
+
+    if (perm.length === 0) {
+      return permlinkRnd();
+    }
   }
-  return null;
+
+  return perm;
 };
 
 export const generateReplyPermlink = (toAuthor) => {