data fixes; indicator=>workspace sync

web/src/utils.ts

@@ -0,0 +1,23 @@
+/**
+ * Convert a TradingView interval string to seconds.
+ * Plain numbers are minutes (TradingView convention), suffixed forms use the suffix.
+ * Examples: "15" → 900, "1D" → 86400, "1W" → 604800
+ */
+export function intervalToSeconds(interval: string): number {
+  const numericInterval = parseInt(interval)
+  if (!isNaN(numericInterval) && interval === numericInterval.toString()) {
+    return numericInterval * 60 // plain number = minutes
+  }
+  const match = interval.match(/^(\d+)([SMHDW])$/)
+  if (match) {
+    const value = parseInt(match[1])
+    switch (match[2]) {
+      case 'S': return value
+      case 'M': return value * 60
+      case 'H': return value * 3600
+      case 'D': return value * 86400
+      case 'W': return value * 604800
+    }
+  }
+  return 60 // fallback: 1 minute
+}