chart data fixes

web/src/composables/useTradingViewDatafeed.ts

@@ -79,6 +79,19 @@ export class WebSocketDatafeed implements IBasicDataFeed {
   }
 
   private handleMessage(message: any): void {
+    // On reconnect the server sends a fresh 'connected' message.
+    // Any pending requests were sent on the old socket and will never be answered,
+    // so reject them immediately so TradingView can retry on the new connection.
+    if (message.type === 'connected' && this.pendingRequests.size > 0) {
+      console.warn('[TradingView Datafeed] WebSocket reconnected — rejecting', this.pendingRequests.size, 'stale pending request(s)')
+      for (const [requestId, pending] of this.pendingRequests) {
+        clearTimeout(pending.timeout)
+        pending.reject(new Error('WebSocket reconnected'))
+        this.pendingRequests.delete(requestId)
+      }
+      return
+    }
+
     // Handle responses to pending requests
     if (message.request_id && this.pendingRequests.has(message.request_id)) {
       console.log('[TradingView Datafeed] Found pending request for:', message.request_id)
@@ -186,10 +199,12 @@ export class WebSocketDatafeed implements IBasicDataFeed {
         if (response.symbol_info) {
           console.log('[TradingView Datafeed] Resolved symbol info:', response.symbol_info)
 
-          // Store the denominators for this symbol
+          // Derive scale denominators from Nautilus precision fields.
+          // price_precision=2 → tick divisor=100 (prices stored as integer cents)
+          // size_precision=6  → base divisor=1_000_000 (volumes stored as integer micro-units)
           const symbolKey = response.symbol_info.ticker || response.symbol_info.name
-          const tickDenom = response.symbol_info.tick_denominator || 1
-          const baseDenom = response.symbol_info.base_denominator || 1
+          const tickDenom = Math.pow(10, response.symbol_info.price_precision ?? 0)
+          const baseDenom = Math.pow(10, response.symbol_info.size_precision ?? 0)
 
           this.symbolDenominators.set(symbolKey, {
             tick: tickDenom,
@@ -232,7 +247,7 @@ export class WebSocketDatafeed implements IBasicDataFeed {
     this.sendRequest<any>({
       type: 'get_bars',
       symbol: symbolKey,
-      resolution: resolution,
+      period_seconds: intervalToSeconds(resolution),
       from_time: periodParams.from,
       to_time: periodParams.to,
       countback: periodParams.countBack