func generateTerminalLineChart()

in action/prometheus/metrics.go [123:153]

• 23 lines of code
• 7 McCabe index (conditional complexity)

func generateTerminalLineChart(response *PromResponse, metricName string) error {
	var yValues []float64

	// Iterate over the results and extract the values for the specified metric
	for _, result := range response.Data.Result {
		if name, ok := result.Metric["__name__"]; ok && name == metricName {
			// Parse the metric value
			if valueStr, ok := result.Value[1].(string); ok {
				value, err := strconv.ParseFloat(valueStr, 64)
				if err != nil {
					return fmt.Errorf("error converting value to float: %v", err)
				} else {
					yValues = append(yValues, value)
				}
			} else {
				return fmt.Errorf("error converting value to float: %v", result.Value[1])
			}
		}
	}

	// Check if any values were found
	if len(yValues) == 0 {
		return fmt.Errorf("no data found for metric: %s", metricName)
	}

	// Generate and display the ASCII line chart
	graph := asciigraph.Plot(yValues, asciigraph.Width(50), asciigraph.Height(10), asciigraph.Caption(metricName))

	tool.Logger.Infof(graph)
	return nil
}