Absolute Position ProgressBar Golang (With Colors)

absolutePositionProgressBar.go

package main

import (
	"fmt"
	"math"
	"strconv"
	"time"

	"github.com/gookit/color"
)

type barTheme struct {
	first        string
	progress     string
	progresshead string
	last         string
	mainColor    string
	midColor     string
	midheadColor string
}

//ProgressBar main type
type ProgressBar struct {
	theme           barTheme
	current         int
	max             int
	before          string
	beforeEveryLine string
}

//Default is the constructor
func (bar ProgressBar) Default(max int, before string) ProgressBar {

	var defaultBar barTheme = barTheme{
		first:        "[",
		progress:     "=",
		progresshead: ">",
		last:         "]",
		mainColor:    "#ffffff",
		midColor:     "#b5bd68",
		midheadColor: "#00fff3",
	}

	bar = ProgressBar{
		theme:           defaultBar,
		current:         0,
		max:             max,
		before:          before,
		beforeEveryLine: "",
	}

	return bar
}

func (bar *ProgressBar) render() {

	var percent = (float64(bar.current) / float64(bar.max)) * float64(100)
	// fmt.Println("current : " + strconv.Itoa(bar.current))
	var progress = (float64(bar.current) / float64(bar.max)) * float64(50)
	var passed = progress
	var passedInt = int(math.Floor(passed))
	var remaining = float64(50) - passed
	var remainingInt = int(math.Floor(remaining))

	fmt.Print("\033[2K\033[1G")
	if percent == 100 {
		bar.theme.progresshead = "="
	}

	if bar.beforeEveryLine != "" {
		fmt.Println(bar.beforeEveryLine)
	}

	fmt.Print(bar.before)

	color.HEX(bar.theme.mainColor).Print(bar.theme.first)

	for i := 0; i < passedInt; i++ {
		color.HEX(bar.theme.midColor).Print(bar.theme.progress)
	}

	if percent == 100 {
		color.HEX(bar.theme.midColor).Print(bar.theme.progress)
	} else {
		color.HEX(bar.theme.midheadColor).Print(bar.theme.progresshead)
	}

	for j := 0; j < remainingInt; j++ {
		fmt.Print(" ")
	}
	color.HEX(bar.theme.mainColor).Print(bar.theme.last)

}

//Add adds the input value to progress
func (bar *ProgressBar) Add(value int, beforeEveryLine string) {
	bar.beforeEveryLine = beforeEveryLine
	bar.current = bar.current + 1
	bar.render()
}

func main() {
  
  
	mybar := new(ProgressBar).Default(100, "Loading : ")
  
	for i := 0; i < 100; i++ {
    
		var beforLineText = "Line " + strconv.Itoa(i)
    
		time.Sleep(1 * time.Second)
    
		mybar.Add(1, beforLineText)
    
	}
  
  
}