goldenChat base source add

backend/src/main/java/com/goldenchart/controller/LiveTradingController.java

@@ -0,0 +1,47 @@
+package com.goldenchart.controller;
+
+import com.goldenchart.dto.LiveOrderRequest;
+import com.goldenchart.dto.LiveOrderRequest;
+import com.goldenchart.dto.LiveSummaryDto;
+import com.goldenchart.dto.LiveTradeDto;
+import com.goldenchart.service.LiveTradingService;
+import lombok.RequiredArgsConstructor;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.List;
+import java.util.Map;
+
+@RestController
+@RequestMapping("/live")
+@RequiredArgsConstructor
+public class LiveTradingController {
+
+    private final LiveTradingService liveTradingService;
+
+    @GetMapping("/summary")
+    public ResponseEntity<LiveSummaryDto> summary(@RequestHeader Map<String, String> h) {
+        return ResponseEntity.ok(liveTradingService.getSummary(userId(h), deviceId(h)));
+    }
+
+    @GetMapping("/trades")
+    public ResponseEntity<List<LiveTradeDto>> trades(@RequestHeader Map<String, String> h) {
+        return ResponseEntity.ok(liveTradingService.listTrades(userId(h), deviceId(h)));
+    }
+
+    @PostMapping("/orders")
+    public ResponseEntity<LiveTradeDto> placeOrder(@RequestHeader Map<String, String> h,
+                                                   @RequestBody LiveOrderRequest body) {
+        return ResponseEntity.ok(liveTradingService.placeManualOrder(userId(h), deviceId(h), body));
+    }
+
+    private Long userId(Map<String, String> h) {
+        String v = h.get("x-user-id");
+        if (v == null || v.isBlank()) return null;
+        try { return Long.parseLong(v); } catch (NumberFormatException e) { return null; }
+    }
+
+    private String deviceId(Map<String, String> h) {
+        return h.getOrDefault("x-device-id", "anonymous");
+    }
+}