From b18bcaa5fa7e755fc557a6b468f6166a28d443c0 Mon Sep 17 00:00:00 2001
From: Michal Kubec <michal.kubec@gmail.com>
Date: Fri, 28 May 2021 21:48:58 +0200
Subject: [PATCH] fix for zero-values

---
 README.md            |  3 +++
 chia-log-analyzer.go | 34 ++++++++++++++++++++++++++++++----
 2 files changed, 33 insertions(+), 4 deletions(-)

diff --git a/README.md b/README.md
index 81b9690..b6381e4 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,6 @@
+[![rcard](https://goreportcard.com/badge/github.com/kubec/chia-log-analyzer)](https://goreportcard.com/report/github.com/kubec/chia-log-analyzer)
+[![License](https://img.shields.io/badge/license-mit-blue.svg?style=flat-square)](https://raw.githubusercontent.com/kubec/chia-log-analyzer/master/LICENSE)
+
 # Chia log analyzer
 Simply realtime chia log analyzer
 
diff --git a/chia-log-analyzer.go b/chia-log-analyzer.go
index 4ba67bc..f6d5492 100644
--- a/chia-log-analyzer.go
+++ b/chia-log-analyzer.go
@@ -32,7 +32,9 @@ var widgetLog *widgets.Paragraph
 var widgetMinFarmingTime *widgets.Paragraph
 var widgetMaxFarmingTime *widgets.Paragraph
 var widgetBarChart *widgets.BarChart
+var widgetBarChartParagraph *widgets.Paragraph
 var widgetBarChart2 *widgets.Plot
+var widgetBarChart2Paragraph *widgets.Paragraph
 var lastRow string = ""
 var lastParsedLines []string
 
@@ -139,6 +141,11 @@ func main() {
 	widgetBarChart.LabelStyles = []ui.Style{ui.NewStyle(ui.ColorBlue)}
 	widgetBarChart.NumStyles = []ui.Style{ui.NewStyle(ui.ColorWhite)}
 
+	//widget for "not enough data"
+	widgetBarChartParagraph = widgets.NewParagraph()
+	widgetBarChartParagraph.SetRect(0, 10, 119, 25) //same as above
+	widgetBarChartParagraph.Title = "Not engough data or zero values"
+
 	widgetBarChart2 = widgets.NewPlot()
 	widgetBarChart2.Title = "Farming times (axis Y in seconds) - last 110 values"
 	widgetBarChart2.Data = make([][]float64, 1)
@@ -147,6 +154,11 @@ func main() {
 	widgetBarChart2.LineColors[0] = ui.ColorRed
 	widgetBarChart2.Marker = widgets.MarkerBraille
 
+	//widget for "not enough data"
+	widgetBarChart2Paragraph = widgets.NewParagraph()
+	widgetBarChart2Paragraph.SetRect(0, 25, 119, 40) //same as above
+	widgetBarChart2Paragraph.Title = "Not engough data or zero values"
+
 	go loopReadFile()
 
 	uiEvents := ui.PollEvents()
@@ -384,11 +396,25 @@ func renderMaxFarmingTime() {
 }
 
 func renderLastFarmBarChart() {
-	widgetBarChart.Data = lastFarmStack.values
-	ui.Render(widgetBarChart)
+	for _, x := range lastFarmStack.values {
+		if x > 0 { //at least one positive value
+			widgetBarChart.Data = lastFarmStack.values
+			ui.Render(widgetBarChart)
+			return
+		}
+	}
+
+	ui.Render(widgetBarChartParagraph)
 }
 
 func renderLastFarmBarChart2() {
-	widgetBarChart2.Data[0] = lastFarmingTimesStack.values
-	ui.Render(widgetBarChart2)
+	for _, x := range lastFarmingTimesStack.values {
+		if x > 0 { //at least one positive value
+			widgetBarChart2.Data[0] = lastFarmingTimesStack.values
+			ui.Render(widgetBarChart2)
+			return
+		}
+	}
+
+	ui.Render(widgetBarChart2Paragraph)
 }