feat: implement interactive Best Moving Averages panel based on 1D timeframe

src/api/dashboard/static/js/ui/chart.js

@@ -23,10 +23,62 @@ constructor() {
         this.lastCandleTimestamp = null;
         this.simulationMarkers = [];
         this.avgPriceSeries = null;
+        this.dailyMAData = new Map(); // timestamp -> { ma44, ma125, price }
+        this.currentMouseTime = null;
         
         this.init();
     }
 
+    async loadDailyMAData() {
+        try {
+            // Use 1d interval for this calculation
+            const interval = '1d';
+            let candles = this.allData.get(interval);
+            
+            if (!candles || candles.length < 125) {
+                const response = await fetch(`/api/v1/candles?symbol=BTC&interval=${interval}&limit=1000`);
+                const data = await response.json();
+                if (data.candles && data.candles.length > 0) {
+                    candles = data.candles.reverse().map(c => ({
+                        time: Math.floor(new Date(c.time).getTime() / 1000),
+                        open: parseFloat(c.open),
+                        high: parseFloat(c.high),
+                        low: parseFloat(c.low),
+                        close: parseFloat(c.close)
+                    }));
+                    this.allData.set(interval, candles);
+                }
+            }
+
+            if (candles && candles.length >= 44) {
+                const ma44 = this.calculateSimpleSMA(candles, 44);
+                const ma125 = this.calculateSimpleSMA(candles, 125);
+                
+                this.dailyMAData.clear();
+                candles.forEach((c, i) => {
+                    this.dailyMAData.set(c.time, {
+                        price: c.close,
+                        ma44: ma44[i],
+                        ma125: ma125[i]
+                    });
+                });
+            }
+        } catch (error) {
+            console.error('[DailyMA] Error:', error);
+        }
+    }
+
+    calculateSimpleSMA(candles, period) {
+        const results = new Array(candles.length).fill(null);
+        let sum = 0;
+        for (let i = 0; i < candles.length; i++) {
+            sum += candles[i].close;
+            if (i >= period) sum -= candles[i - period].close;
+            if (i >= period - 1) results[i] = sum / period;
+        }
+        return results;
+    }
+
     setSimulationMarkers(markers) {
         this.simulationMarkers = markers || [];
         this.updateSignalMarkers();
@@ -166,6 +218,17 @@ constructor() {
         
         this.chart.timeScale().subscribeVisibleLogicalRangeChange(this.onVisibleRangeChange.bind(this));
         
+        // Subscribe to crosshair movement for Best Moving Averages updates
+        this.chart.subscribeCrosshairMove(param => {
+            if (param.time) {
+                this.currentMouseTime = param.time;
+                this.renderTA();
+            } else {
+                this.currentMouseTime = null;
+                this.renderTA();
+            }
+        });
+
         window.addEventListener('resize', () => {
             this.chart.applyOptions({
                 width: chartContainer.clientWidth,
@@ -357,7 +420,8 @@ constructor() {
     async loadInitialData() {
         await Promise.all([
             this.loadData(2000, true),
-            this.loadStats()
+            this.loadStats(),
+            this.loadDailyMAData()
         ]);
         this.hasInitialLoad = true;
         this.loadTA();
@@ -465,6 +529,7 @@ async loadNewData() {
                 window.drawIndicatorsOnChart?.();
                 window.updateIndicatorCandles?.();
                 
+                this.loadDailyMAData();
                 await this.loadSignals();
             }
         } catch (error) {
@@ -719,9 +784,6 @@ async loadSignals() {
         const trendClass = data.trend.direction.toLowerCase();
         const signalClass = data.trend.signal.toLowerCase();
         
-        const ma44Change = data.moving_averages.price_vs_ma44;
-        const ma125Change = data.moving_averages.price_vs_ma125;
-        
         document.getElementById('taInterval').textContent = this.currentInterval.toUpperCase();
         document.getElementById('taLastUpdate').textContent = new Date().toLocaleTimeString();
         
@@ -752,6 +814,34 @@ async loadSignals() {
         
         const summaryBadge = '';
         
+        // Best Moving Averages Logic (1D based)
+        let displayMA = { ma44: null, ma125: null, price: null, time: null };
+        
+        if (this.currentMouseTime && this.dailyMAData.size > 0) {
+            // Find the 1D candle that includes this mouse time
+            const dayTimestamp = Math.floor(this.currentMouseTime / 86400) * 86400;
+            if (this.dailyMAData.has(dayTimestamp)) {
+                displayMA = { ...this.dailyMAData.get(dayTimestamp), time: dayTimestamp };
+            } else {
+                // Fallback to latest if specific day not found
+                const keys = Array.from(this.dailyMAData.keys()).sort((a, b) => b - a);
+                const latestKey = keys[0];
+                displayMA = { ...this.dailyMAData.get(latestKey), time: latestKey };
+            }
+        } else if (this.dailyMAData.size > 0) {
+            const keys = Array.from(this.dailyMAData.keys()).sort((a, b) => b - a);
+            const latestKey = keys[0];
+            displayMA = { ...this.dailyMAData.get(latestKey), time: latestKey };
+        }
+
+        const ma44Value = displayMA.ma44;
+        const ma125Value = displayMA.ma125;
+        const currentPrice = displayMA.price;
+        
+        const ma44Change = (ma44Value && currentPrice) ? ((currentPrice - ma44Value) / ma44Value * 100) : null;
+        const ma125Change = (ma125Value && currentPrice) ? ((currentPrice - ma125Value) / ma125Value * 100) : null;
+        const maDateStr = displayMA.time ? TimezoneConfig.formatDate(displayMA.time * 1000).split(' ')[0] : 'Latest';
+
         document.getElementById('taContent').innerHTML = `
             <div class="ta-section">
                 <div class="ta-section-title">
@@ -762,18 +852,21 @@ async loadSignals() {
             </div>
             
             <div class="ta-section">
-                <div class="ta-section-title">Moving Averages</div>
+                <div class="ta-section-title" style="display: flex; justify-content: space-between;">
+                    <span>Best Moving Averages</span>
+                    <span style="font-size: 10px; font-weight: normal; color: var(--tv-blue);">${maDateStr} (1D)</span>
+                </div>
                 <div class="ta-ma-row">
                     <span class="ta-ma-label">MA 44</span>
                     <span class="ta-ma-value">
-                        ${data.moving_averages.ma_44 ? data.moving_averages.ma_44.toFixed(2) : 'N/A'}
+                        ${ma44Value ? ma44Value.toFixed(2) : 'N/A'}
                         ${ma44Change !== null ? `<span class="ta-ma-change ${ma44Change >= 0 ? 'positive' : 'negative'}">${ma44Change >= 0 ? '+' : ''}${ma44Change.toFixed(1)}%</span>` : ''}
                     </span>
                 </div>
                 <div class="ta-ma-row">
                     <span class="ta-ma-label">MA 125</span>
                     <span class="ta-ma-value">
-                        ${data.moving_averages.ma_125 ? data.moving_averages.ma_125.toFixed(2) : 'N/A'}
+                        ${ma125Value ? ma125Value.toFixed(2) : 'N/A'}
                         ${ma125Change !== null ? `<span class="ta-ma-change ${ma125Change >= 0 ? 'positive' : 'negative'}">${ma125Change >= 0 ? '+' : ''}${ma125Change.toFixed(1)}%</span>` : ''}
                     </span>
                 </div>