From 204a3f0eeaa0c68781b60651bf27c4b27eac44e6 Mon Sep 17 00:00:00 2001
From: Ariel Leyva <msomnium.info@gmail.com>
Date: Sat, 6 Dec 2025 05:08:50 -0500
Subject: [PATCH] fix: added column separator select (comma, semicolon and
 both) in CSV viewer (#5604)

Co-authored-by: Henrique Dias <mail@hacdias.com>
---
 frontend/src/components/files/CsvViewer.vue | 59 +++++++++++++++++++--
 frontend/src/i18n/en.json                   |  5 ++
 frontend/src/utils/csv.ts                   |  7 ++-
 3 files changed, 64 insertions(+), 7 deletions(-)

diff --git a/frontend/src/components/files/CsvViewer.vue b/frontend/src/components/files/CsvViewer.vue
index 180cf7e2..4f66fff0 100644
--- a/frontend/src/components/files/CsvViewer.vue
+++ b/frontend/src/components/files/CsvViewer.vue
@@ -25,9 +25,29 @@
           </tr>
         </tbody>
       </table>
-      <div v-if="data.rows.length > 100" class="csv-info">
-        <i class="material-icons">info</i>
-        <span>Showing {{ data.rows.length }} rows</span>
+      <div class="csv-footer">
+        <div class="csv-info" v-if="data.rows.length > 100">
+          <i class="material-icons">info</i>
+          <span>Showing {{ data.rows.length }} rows</span>
+        </div>
+        <div class="column-separator">
+          <label for="columnSeparator">Column Separator</label>
+          <select
+            id="columnSeparator"
+            class="input input--block"
+            v-model="columnSeparator"
+          >
+            <option :value="[',']">
+              {{ $t("available_csv_separators.comma") }}
+            </option>
+            <option :value="[';']">
+              {{ $t("available_csv_separators.semicolon") }}
+            </option>
+            <option :value="[',', ';']">
+              {{ $t("available_csv_separators.both") }}
+            </option>
+          </select>
+        </div>
       </div>
     </div>
   </div>
@@ -35,7 +55,7 @@
 
 <script setup lang="ts">
 import { parseCSV, type CsvData } from "@/utils/csv";
-import { computed } from "vue";
+import { computed, ref } from "vue";
 
 interface Props {
   content: string;
@@ -46,9 +66,11 @@ const props = withDefaults(defineProps<Props>(), {
   error: "",
 });
 
+const columnSeparator = ref([","]);
+
 const data = computed<CsvData>(() => {
   try {
-    return parseCSV(props.content);
+    return parseCSV(props.content, columnSeparator.value);
   } catch (e) {
     console.error("Failed to parse CSV:", e);
     return { headers: [], rows: [] };
@@ -181,6 +203,18 @@ const displayError = computed(() => {
   transition: background-color 0.15s ease;
 }
 
+.csv-footer {
+  display: flex;
+  justify-content: space-between;
+  align-items: center;
+  gap: 1rem;
+  padding: 0.5rem;
+}
+
+.csv-footer > :only-child {
+  margin-left: auto;
+}
+
 .csv-info {
   display: flex;
   align-items: center;
@@ -194,6 +228,21 @@ const displayError = computed(() => {
   font-size: 0.875rem;
 }
 
+.column-separator {
+  display: flex;
+  align-items: center;
+  gap: 0.5rem;
+}
+
+.column-separator > label {
+  font-size: small;
+  text-align: end;
+}
+
+.column-separator > select {
+  margin-bottom: 0;
+}
+
 .csv-info i {
   font-size: 1.2rem;
   color: var(--blue);
diff --git a/frontend/src/i18n/en.json b/frontend/src/i18n/en.json
index 869991fa..39b09bb8 100644
--- a/frontend/src/i18n/en.json
+++ b/frontend/src/i18n/en.json
@@ -272,5 +272,10 @@
     "minutes": "Minutes",
     "seconds": "Seconds",
     "unit": "Time Unit"
+  },
+  "available_csv_separators": {
+    "comma": "Comma (,)",
+    "semicolon": "Semicolon (;)",
+    "both": "Both (,) and (;)"
   }
 }
diff --git a/frontend/src/utils/csv.ts b/frontend/src/utils/csv.ts
index 5a55e501..c03731e7 100644
--- a/frontend/src/utils/csv.ts
+++ b/frontend/src/utils/csv.ts
@@ -7,7 +7,10 @@ export interface CsvData {
  * Parse CSV content into headers and rows
  * Supports quoted fields and handles commas within quotes
  */
-export function parseCSV(content: string): CsvData {
+export function parseCSV(
+  content: string,
+  columnSeparator: Array<string>
+): CsvData {
   if (!content || content.trim().length === 0) {
     return { headers: [], rows: [] };
   }
@@ -35,7 +38,7 @@ export function parseCSV(content: string): CsvData {
           // Toggle quote state
           inQuotes = !inQuotes;
         }
-      } else if (char === "," && !inQuotes) {
+      } else if (columnSeparator.includes(char) && !inQuotes) {
         // Field separator
         row.push(currentField);
         currentField = "";