Add quick fix for connecting the endpoints of a line where tags suggest area if it won't create self-intersection

data/core.yaml

@@ -1234,7 +1234,7 @@ en:
       message: "{multipolygon} has misplaced tags."
       tip: Multipolygons should be tagged on their relation, not their outer way.
     tag_suggests_area:
-      message: 'Feature is a line, but the tag "{tag}" suggests it should be an area.'
+      message: '{feature} should be an area based on the tags: {tags}'
       tip: Areas must have connected endpoints.
     fix:
       add_connection_vertex:
@@ -1247,6 +1247,9 @@ en:
         title: Continue this feature
       delete_feature:
         title: Delete this feature
+      connect_endpoints:
+        title: Connect the ends
+        undo_redo: Connected the endpoints of a way.
       move_tags:
         title: Move the tags
         undo_redo: Moved tags.

dist/locales/en.json

@@ -1511,7 +1511,7 @@
                 "tip": "Multipolygons should be tagged on their relation, not their outer way."
             },
             "tag_suggests_area": {
-                "message": "Feature is a line, but the tag \"{tag}\" suggests it should be an area.",
+                "message": "{feature} should be an area based on the tags: {tags}",
                 "tip": "Areas must have connected endpoints."
             },
             "fix": {
@@ -1529,6 +1529,10 @@
                 "delete_feature": {
                     "title": "Delete this feature"
                 },
+                "connect_endpoints": {
+                    "title": "Connect the ends",
+                    "undo_redo": "Connected the endpoints of a way."
+                },
                 "move_tags": {
                     "title": "Move the tags",
                     "undo_redo": "Moved tags."

modules/validations/tag_suggests_area.js

@@ -2,6 +2,7 @@ import _isEmpty from 'lodash-es/isEmpty';
 import _clone from 'lodash-es/clone';
 import { t } from '../util/locale';
 import {
+    utilDisplayLabel,
     utilTagText
 } from '../util';
 import {
@@ -9,8 +10,10 @@ import {
     validationIssueFix
 } from '../core/validator';
 import {
+    actionAddVertex,
     actionChangeTags
 } from '../actions';
+import { geoHasSelfIntersections } from '../geo';
 
 
 // https://github.com/openstreetmap/josm/blob/mirror/src/org/
@@ -47,28 +50,45 @@ export function validationTagSuggestsArea() {
 
         if (suggestingTags) {
             var tagText = utilTagText({ tags: suggestingTags });
+            var fixes = [];
+            var nodes = _clone(graph.childNodes(entity));
+            nodes.push(nodes[0]);
+            if (!geoHasSelfIntersections(nodes, nodes[0].id)) {
+                fixes.push(new validationIssueFix({
+                    title: t('issues.fix.connect_endpoints.title'),
+                    onClick: function() {
+                        var way = this.issue.entities[0];
+                        var nodeId = way.nodes[0];
+                        var index = way.nodes.length;
+                        context.perform(
+                            actionAddVertex(way.id, nodeId, index),
+                            t('issues.fix.connect_endpoints.undo_redo')
+                        );
+                    }
+                }));
+            }
+            fixes.push(new validationIssueFix({
+                title: t('issues.fix.remove_tags.title'),
+                onClick: function() {
+                    var entity = this.issue.entities[0];
+                    var tags = _clone(entity.tags);
+                    for (var key in suggestingTags) {
+                        delete tags[key];
+                    }
+                    context.perform(
+                        actionChangeTags(entity.id, tags),
+                        t('issues.fix.remove_tags.undo_redo')
+                    );
+                }
+            }));
+            var featureLabel = utilDisplayLabel(entity, context);
             issues.push(new validationIssue({
                 type: type,
                 severity: 'warning',
-                message: t('issues.tag_suggests_area.message', { tag: tagText }),
+                message: t('issues.tag_suggests_area.message', { feature: featureLabel, tags: tagText }),
                 tooltip: t('issues.tag_suggests_area.tip'),
                 entities: [entity],
-                fixes: [
-                    new validationIssueFix({
-                        title: t('issues.fix.remove_tags.title'),
-                        onClick: function() {
-                            var entity = this.issue.entities[0];
-                            var tags = _clone(entity.tags);
-                            for (var key in suggestingTags) {
-                                delete tags[key];
-                            }
-                            context.perform(
-                                actionChangeTags(entity.id, tags),
-                                t('issues.fix.remove_tags.undo_redo')
-                            );
-                        }
-                    })
-                ]
+                fixes: fixes
             }));
         }