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package tui
import (
"fmt"
"strings"
"time"
)
type ProgressBar struct {
title string
width int
steps int
n int
start time.Time
}
func NewProgressBar(title string, width, steps int, start time.Time) *ProgressBar {
pb := &ProgressBar{
title: title,
width: width,
steps: steps,
start: start,
}
pb.Print()
return pb
}
func (pb *ProgressBar) Increment() {
pb.n++
}
func (pb *ProgressBar) Update(steps int) {
pb.n = steps
}
func (pb *ProgressBar) Print() {
fmt.Print(pb.String())
}
func (pb *ProgressBar) Finish() {
fmt.Println()
}
func (pb *ProgressBar) String() string {
progress := int(float64(pb.n) / float64(pb.steps) * float64(pb.width))
percentage := int(float64(pb.n) / float64(pb.steps) * 100)
lap := time.Since(pb.start)
duration := fmt.Sprintf("%02d:%02d:%02d", int(lap.Hours()), int(lap.Minutes())%60, int(lap.Seconds())%60)
return fmt.Sprintf(
"\r[%s] %-20s %3d%% [%s%s] %d/%d",
duration,
pb.title,
percentage,
strings.Repeat("=", min(progress, pb.width)),
strings.Repeat("-", max(0, pb.width-progress)),
pb.n,
pb.steps,
)
}
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