From 49c838fee551aa8b7d564d59a2a367613624f20b Mon Sep 17 00:00:00 2001
From: Kyle Hensel <k.y.l.e@outlook.co.nz>
Date: Mon, 30 Dec 2024 22:55:50 +1300
Subject: [PATCH] allow duplicate values in semiCombo for some fields

---
 config/id.js               |  2 +-
 modules/ui/fields/combo.js | 38 +++++++++++++++++++++++++++-----------
 2 files changed, 28 insertions(+), 12 deletions(-)

diff --git a/config/id.js b/config/id.js
index 2a30cd3957..efa41477a9 100644
--- a/config/id.js
+++ b/config/id.js
@@ -2,7 +2,7 @@
 
 // cdns for external data packages
 const presetsCdnUrl = ENV__ID_PRESETS_CDN_URL
-  || 'https://cdn.jsdelivr.net/npm/@openstreetmap/id-tagging-schema@{presets_version}/';
+  || 'https://raw.githubusercontent.com/k-yle/id-tagging-schema/kyle-deploy/'; // FIXME: TEMPORARY
 const ociCdnUrl = ENV__ID_OCI_CDN_URL
   || 'https://cdn.jsdelivr.net/npm/osm-community-index@{version}/';
 const wmfSitematrixCdnUrl = ENV__ID_WMF_SITEMATRIX_CDN_URL
diff --git a/modules/ui/fields/combo.js b/modules/ui/fields/combo.js
index caacf33a7a..5c750ddf89 100644
--- a/modules/ui/fields/combo.js
+++ b/modules/ui/fields/combo.js
@@ -206,7 +206,9 @@ export function uiFieldCombo(field, context) {
             _comboData = _comboData.filter(filter);
         }
 
-        _comboData = objectDifference(_comboData, _multiData);
+        if (!field.allowDuplicates) {
+            _comboData = objectDifference(_comboData, _multiData);
+        }
         _combobox.data(_comboData);
         if (callback) callback(_comboData);
     }
@@ -289,7 +291,9 @@ export function uiFieldCombo(field, context) {
 
             _comboData = _comboData.filter(queryFilter);
 
-            _comboData = objectDifference(_comboData, _multiData);
+            if (!field.allowDuplicates) {
+                _comboData = objectDifference(_comboData, _multiData);
+            }
             if (callback) callback(_comboData, hasStaticValues());
         });
     }
@@ -384,7 +388,10 @@ export function uiFieldCombo(field, context) {
             } else if (_isSemi) {
                 var arr = _multiData.map(function(d) { return d.key; });
                 arr = arr.concat(vals);
-                t[field.key] = context.cleanTagValue(utilArrayUniq(arr).filter(Boolean).join(';'));
+                if (!field.allowDuplicates) {
+                    arr = utilArrayUniq(arr);
+                }
+                t[field.key] = context.cleanTagValue(arr.filter(Boolean).join(';'));
             }
 
             window.setTimeout(function() { _input.node().focus(); }, 10);
@@ -410,11 +417,15 @@ export function uiFieldCombo(field, context) {
         if (_isMulti) {
             t[d.key] = undefined;
         } else if (_isSemi) {
-            var arr = _multiData.map(function(md) {
-                return md.key === d.key ? null : md.key;
-            }).filter(Boolean);
+            let arr = _multiData.map(item => item.key);
+
+            // delete the value using the index, since a value
+            // may exist multiple times in the array.
+            arr.splice(d.index, 1);
 
-            arr = utilArrayUniq(arr);
+            if (!field.allowDuplicates) {
+                arr = utilArrayUniq(arr);
+            }
             t[field.key] = arr.length ? arr.join(';') : undefined;
 
             _lengthIndicator.update(t[field.key]);
@@ -620,7 +631,7 @@ export function uiFieldCombo(field, context) {
                 if (Array.isArray(tags[field.key])) {
 
                     tags[field.key].forEach(function(tagVal) {
-                        var thisVals = utilArrayUniq((tagVal || '').split(';')).filter(Boolean);
+                        var thisVals = (tagVal || '').split(';').filter(Boolean);
                         allValues = allValues.concat(thisVals);
                         if (!commonValues) {
                             commonValues = thisVals;
@@ -628,13 +639,18 @@ export function uiFieldCombo(field, context) {
                             commonValues = commonValues.filter(value => thisVals.includes(value));
                         }
                     });
-                    allValues = utilArrayUniq(allValues).filter(Boolean);
+                    allValues = allValues.filter(Boolean);
 
                 } else {
-                    allValues =  utilArrayUniq((tags[field.key] || '').split(';')).filter(Boolean);
+                    allValues =  (tags[field.key] || '').split(';').filter(Boolean);
                     commonValues = allValues;
                 }
 
+                if (!field.allowDuplicates) {
+                    commonValues = utilArrayUniq(commonValues);
+                    allValues = utilArrayUniq(allValues);
+                }
+
                 _multiData = allValues.map(function(v) {
                     return {
                         key: v,
@@ -667,7 +683,7 @@ export function uiFieldCombo(field, context) {
 
             // Render chips
             var chips = _container.selectAll('.chip')
-                .data(_multiData);
+                .data(_multiData.map((item, index) => ({ ...item, index })));
 
             chips.exit()
                 .remove();