Figure out how to do histograms

[zefhemel]

One of the useful features of Kibana is the graph with number of hits for a given query over time, we need something like this in Ax. Maybe using something like: https://github.com/gizak/termui

[zefhemel]

I think this is not going to be worth the effort, nevertheless, here's some concept code I wrote to build a basic UI with bar charts.

package main

import (
	"fmt"

	ui "github.com/zefhemel/termui"
)

var debugLog *ui.List = nil

func main() {
	err := ui.Init()
	if err != nil {
		panic(err)
	}
	defer ui.Close()

	p := ui.NewList()
	p.Items = []string{"[Data](fg-blue) Sup", "[Data](fg-blue) Sup", "[Data](fg-blue) Sup [Data](fg-blue) Sup [Data](fg-blue) Sup [Data](fg-blue) Sup [Data](fg-blue) Sup [Data](fg-blue) Sup [Data](fg-blue) Sup [Data](fg-blue) Sup [Data](fg-blue) Sup [Data](fg-blue) Sup [Data](fg-blue) Sup [Data](fg-blue) Sup [Data](fg-blue) Sup[Data](fg-blue) Sup[Data](fg-blue) Sup[Data](fg-blue) Sup[Data](fg-blue) Sup[Data](fg-blue) Sup[Data](fg-blue) Sup"}
	p.BorderLabel = "Logs"
	p.Overflow = "wrap"
	p.Height = ui.TermHeight() - 15
	p.Width = ui.TermWidth()

	data := []int{1, 10, 5, 7}
	histogram := ui.NewBarChart()
	histogram.Height = 10
	histogram.BorderLabel = "Histogram"
	histogram.Data = data
	histogram.DataLabels = []string{"20:00", "21:00", "22:00", "23:00"}
	histogram.BarWidth = 5
	histogram.BarColor = ui.ColorYellow
	histogram.Width = ui.TermWidth()

	debugLog = ui.NewList()
	debugLog.Items = []string{"Sup"}
	debugLog.Height = 5
	debugLog.Width = ui.TermWidth()

	ui.Body.AddRows(
		ui.NewRow(
			ui.NewCol(12, 0, histogram)),
		ui.NewRow(
			ui.NewCol(12, 0, p)),
		ui.NewRow(
			ui.NewCol(12, 0, debugLog)))

	// calculate layout
	ui.Body.Align()

	ui.Render(ui.Body)

	ui.Handle("/sys/kbd/q", func(ui.Event) {
		// press q to quit
		ui.StopLoop()
	})

	ui.Handle("/sys/wnd/resize", func(ui.Event) {
		histogram.Width = ui.TermWidth()
		debugLog.Width = ui.TermWidth()
		p.Height = ui.TermHeight() - 15
		p.Width = ui.TermWidth()
		debug("Resized")
		ui.Render(ui.Body)
	})

	ui.Handle("/sys/kbd", func(e ui.Event) {
		debug(fmt.Sprintf("%+v", e))
	})

	ui.Loop() // block until StopLoop is called
}

func debug(s string) {
	debugLog.Items = append(debugLog.Items, s)
	ui.Render(ui.Body)
}