show feed errors

assets/graphicarts/alert-circle.svg

@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="feather feather-alert-circle"><circle cx="12" cy="12" r="10"></circle><line x1="12" y1="8" x2="12" y2="12"></line><line x1="12" y1="16" x2="12.01" y2="16"></line></svg>

assets/index.html

@@ -337,6 +337,11 @@
                             <span class="icon mr-2" v-else><img v-lazy="'/api/feeds/'+feed.id+'/icon'" alt=""></span>
                             {{ feed.title }}
                         </div>
+                        <span class="icon flex-shrink-0 mx-2"
+                              v-b-tooltip.hover.top="feed_errors[feed.id]"
+                              v-if="feed_errors[feed.id]">
+                            {% inline "alert-circle.svg" %}
+                        </span>
                         <div class="flex-shrink-0">
                             <b-dropdown right no-caret lazy variant="link" class="settings-dropdown" toggle-class="text-decoration-none">
                                 <template v-slot:button-content>

assets/javascripts/api.js

@@ -43,6 +43,9 @@
       refresh: function() {
         return api('post', '/api/feeds/refresh')
       },
+      list_errors: function() {
+        return api('get', '/api/feeds/errors').then(json)
+      },
     },
     folders: {
       list: function() {

assets/javascripts/app.js

@@ -177,6 +177,7 @@ var vm = new Vue({
       },
       'refreshRate': undefined,
       'authenticated': authenticated(),
+      'feed_errors': {},
     }
   },
   computed: {
@@ -529,6 +530,12 @@ var vm = new Vue({
     showSettings: function(settings) {
       this.settings = settings
       this.$bvModal.show('settings-modal')
+
+      if (settings === 'manage') {
+        api.feeds.list_errors().then(function(errors) {
+          vm.feed_errors = errors
+        })
+      }
     },
     resizeFeedList: function(width) {
       this.feedListWidth = Math.min(Math.max(200, width), 700)

server/handlers.go

@@ -31,6 +31,7 @@ var routes []Route = []Route{
 	p("/api/feeds", FeedListHandler),
 	p("/api/feeds/find", FeedHandler),
 	p("/api/feeds/refresh", FeedRefreshHandler),
+	p("/api/feeds/errors", FeedErrorsHandler),
 	p("/api/feeds/:id/icon", FeedIconHandler),
 	p("/api/feeds/:id", FeedHandler),
 	p("/api/items", ItemListHandler),
@@ -229,6 +230,11 @@ func FeedRefreshHandler(rw http.ResponseWriter, req *http.Request) {
 	}
 }
 
+func FeedErrorsHandler(rw http.ResponseWriter, req *http.Request) {
+	errors := db(req).GetFeedErrors()
+	writeJSON(rw, errors)
+}
+
 func FeedIconHandler(rw http.ResponseWriter, req *http.Request) {
 	id, err := strconv.ParseInt(Vars(req)["id"], 10, 64)
 	if err != nil {

storage/feed.go

@@ -150,3 +150,23 @@ func (s *Storage) SetFeedError(feedID int64, lastError error) {
 		s.log.Print(err)
 	}
 }
+
+func (s *Storage) GetFeedErrors() map[int64]string {
+	errors := make(map[int64]string)
+
+	rows, err := s.db.Query(`select feed_id, error from feed_errors`)
+	if err != nil {
+		s.log.Print(err)
+		return errors
+	}
+
+	for rows.Next() {
+		var id int64
+		var error string
+		if err = rows.Scan(&id, &error); err != nil {
+			s.log.Print(err)
+		}
+		errors[id] = error
+	}
+	return errors
+}