Speed up journal save with AJAX and async K-line charts.

Defer exchange chart generation to a background thread and save via XHR so fill-from-trade no longer blocks on full page reload.

Co-authored-by: Cursor <cursoragent@cursor.com>

crypto_monitor_binance/app.py

@@ -9352,29 +9352,28 @@ def del_order(id):
 @app.route("/add_journal", methods=["POST"])
 @login_required
 def add_journal():
+    from lib.instance.journal_chart_async_lib import journal_ajax_or_flash_error
+
     d = request.form
     order_type_norm = normalize_journal_order_type(d.get("order_type"))
     if not order_type_norm:
-        flash("请选择下单类型")
-        return _redirect_records()
+        return journal_ajax_or_flash_error(request, "请选择下单类型", redirect_fn=_redirect_records)
     direction_norm = normalize_journal_direction(d.get("direction") or d.get("direction_hint"))
     if not direction_norm:
-        flash("请选择方向")
-        return _redirect_records()
+        return journal_ajax_or_flash_error(request, "请选择方向", redirect_fn=_redirect_records)
     entry_reason_norm = normalize_journal_entry_reason(
         d.get("entry_reason"), ENTRY_REASON_OPTIONS, allow_legacy=False
     )
     if not entry_reason_norm:
-        flash("请选择开仓类型")
-        return _redirect_records()
+        return journal_ajax_or_flash_error(request, "请选择开仓类型", redirect_fn=_redirect_records)
     early_exit_trigger = normalize_early_exit_trigger(d.get("early_exit_trigger"))
     early_exit_note = str(d.get("early_exit_note") or "").strip()
     if not early_exit_trigger:
-        flash("请选择离场触发")
-        return _redirect_records()
+        return journal_ajax_or_flash_error(request, "请选择离场触发", redirect_fn=_redirect_records)
     if early_exit_trigger == "手动平仓" and not early_exit_note:
-        flash("手工平仓必须填写补充说明")
-        return _redirect_records()
+        return journal_ajax_or_flash_error(
+            request, "手工平仓必须填写补充说明", redirect_fn=_redirect_records
+        )
     if early_exit_trigger != "手动平仓":
         early_exit_note = ""
     # 兼容字段:仅「手工平仓」记为「主观提前」语义下的「是」
@@ -9407,14 +9406,14 @@ def add_journal():
 
     want_exchange_chart = (
         not has_manual_uploads
+        and ORDER_CHART_ENABLED
         and d.get("journal_exchange_chart", "").lower() in ("1", "true", "on", "yes")
     )
-    chart_msg = None
-    if want_exchange_chart and ORDER_CHART_ENABLED:
+    chart_job = None
+    if want_exchange_chart:
         coin = (d.get("coin") or "").strip().upper()
         symbol_guess = normalize_symbol_input(coin) or coin
         exchange_symbol = normalize_exchange_symbol(symbol_guess)
-        title_prefix = f"{symbol_guess} journal {entry_id[:8]}"
         journal_tfs = parse_journal_chart_timeframes(
             d.get("journal_chart_tf1"),
             d.get("journal_chart_tf2"),
@@ -9422,36 +9421,21 @@ def add_journal():
         )
         journal_limit = parse_journal_chart_limit(d.get("journal_chart_limit"), ORDER_CHART_LIMIT)
         chart_anchor = parse_journal_chart_anchor(d.get("journal_chart_anchor"))
-        marker_payload = {
-            "entry_ts_ms": _local_input_datetime_to_ms(d.get("open_datetime")),
-            "exit_ts_ms": _local_input_datetime_to_ms(d.get("close_datetime")),
-            "entry_price": d.get("entry_price_hint"),
-            "exit_price": d.get("exit_price_hint"),
-            "stop_loss_price": d.get("stop_loss_hint"),
-            "chart_anchor": chart_anchor,
-            "now_ts_ms": int(app_now().timestamp() * 1000),
+        chart_job = {
+            "exchange_symbol": exchange_symbol,
+            "title_prefix": f"{symbol_guess} journal {entry_id[:8]}",
+            "journal_tfs": journal_tfs,
+            "journal_limit": journal_limit,
+            "marker_payload": {
+                "entry_ts_ms": _local_input_datetime_to_ms(d.get("open_datetime")),
+                "exit_ts_ms": _local_input_datetime_to_ms(d.get("close_datetime")),
+                "entry_price": d.get("entry_price_hint"),
+                "exit_price": d.get("exit_price_hint"),
+                "stop_loss_price": d.get("stop_loss_hint"),
+                "chart_anchor": chart_anchor,
+                "now_ts_ms": int(app_now().timestamp() * 1000),
+            },
         }
-        try:
-            chart_fname = f"journal_{entry_id}.png"
-            saved = generate_multi_timeframe_chart_png(
-                exchange_symbol,
-                title_prefix,
-                timeframes=journal_tfs,
-                limit=journal_limit,
-                out_dir=app.config["UPLOAD_FOLDER"],
-                filename=chart_fname,
-                filename_prefix="journal",
-                marker_payload=marker_payload,
-                marker_timeframes={x.strip().lower() for x in journal_tfs},
-                layout="vertical",
-            )
-            if saved:
-                image_filename = saved
-                chart_msg = f"已生成复盘K线图({'/'.join(journal_tfs)} 各{journal_limit}根):/static/images/{saved}"
-            else:
-                chart_msg = "已勾选自动生成K线图,但生成失败(返回空).请检查 Pillow 是否安装,Binance 网络/代理是否正常."
-        except Exception as e:
-            chart_msg = f"自动生成K线图失败:{str(e)}"
 
     conn = get_db()
     conn.execute(
@@ -9488,10 +9472,38 @@ def add_journal():
     )
     conn.commit()
     conn.close()
-    if chart_msg:
-        flash(f"交易复盘记录已保存.{chart_msg}")
+    if chart_job:
+        from lib.instance.journal_chart_async_lib import schedule_journal_exchange_chart
+
+        schedule_journal_exchange_chart(
+            entry_id=entry_id,
+            exchange_symbol=chart_job["exchange_symbol"],
+            title_prefix=chart_job["title_prefix"],
+            journal_tfs=chart_job["journal_tfs"],
+            journal_limit=chart_job["journal_limit"],
+            marker_payload=chart_job["marker_payload"],
+            upload_folder=app.config["UPLOAD_FOLDER"],
+            generate_chart_fn=generate_multi_timeframe_chart_png,
+            get_db_fn=get_db,
+        )
+        msg = (
+            "交易复盘记录已保存.K 线图后台生成中"
+            f"({'/'.join(chart_job['journal_tfs'])} 各{chart_job['journal_limit']}根),稍后刷新列表可见."
+        )
     else:
-        flash("交易复盘记录已保存")
+        msg = "交易复盘记录已保存"
+    from lib.instance.journal_chart_async_lib import request_wants_journal_ajax
+
+    if request_wants_journal_ajax(request):
+        return jsonify(
+            {
+                "ok": True,
+                "id": entry_id,
+                "msg": msg,
+                "chart_pending": bool(chart_job),
+            }
+        )
+    flash(msg)
     return _redirect_records()