Only generate audio for items with content.

bin/lib/autovoice.js

@@ -9,6 +9,7 @@ const            constructRSS = require('./constructRSS');
 const formatContentForReading = require('./formatContentForReading');
 const            fetchContent = require('./fetchContent');
 const         individualUUIDs = require('./individualUUIDs');
+const         filterNullItems = require('./filter-null');
 
 function processItemToMp3(item, voiceId){
 	debug(`processItemToMp3: index=${item.processingIndex}, item.keys=${JSON.stringify(Object.keys(item))}, voiceId=${voiceId}`);
@@ -88,10 +89,16 @@ function generatePodcast(rssUrl, voiceId=tts.defaultVoiceId){
 		debug(`generatePodcast: items.length=${items.length}`);
 		const promises = items.map( (item, i) => {
 			item.processingIndex = i;
-			return processItemToMp3(item, voiceId);
+			return processItemToMp3(item, voiceId)
+				.catch(err => {
+					debug(`An error occurred trying to generate speech for item ${item.uuid}. Err:`, err);
+					return null;
+				})
+			;
 		} );
 		return Promise.all(promises);
 	})
+	.then( items => filterNullItems(items) )
 	.then( items => {
 		const feed = constructRSS(rssUrl, items);
 		return feed;
@@ -109,10 +116,16 @@ function generateFirstFtBasedPodcast(maxResults, requestedUrl, includeFirstFtUui
 		debug(`generateFirstFtBasedPodcast: items.length=${items.length}`);
 		const promises = items.map( (item, i) => {
 			item.processingIndex = i;
-			return processItemToMp3(item, voiceId);
+			return processItemToMp3(item, voiceId)
+				.catch(err => {
+					debug(`An error occurred trying to generate speech for item ${item.uuid}. Err:`, err);
+					return null;
+				})
+			;
 		} );
 		return Promise.all(promises);
 	})
+	.then( items => filterNullItems(items) )	
 	.then( items => constructRSS(requestedUrl, items) )
 	;
 }

bin/lib/filter-null.js

@@ -0,0 +1,9 @@
+const debug = require('debug')('bin:lib:filter-null');
+
+module.exports = function(listWithNulls){
+
+	return listWithNulls.filter(item => {
+		return item !== null;
+	});
+
+}

bin/lib/formatContentForReading.js

@@ -86,6 +86,10 @@ function wrap(itemData) {
 
 	let texts = [];
 
+	if(itemData.content === undefined){
+		throw 'itemData.content is undefined. There is nothing to read aloud.';
+	}
+
 	texts.push(`This article is narrated by Experimental ${itemData.voiceId}.`);
 	texts.push( itemData.content + '.' );