package formatter

import (
	"fmt"
	"os"
	"strings"
	"time"

	"github.com/docker/cli/cli/command/formatter"
	"github.com/docker/go-units"
	"github.com/olekukonko/tablewriter"
)

func ShortenID(str string) string {
	return str[:12]
}

func Truncate(str string) string {
	return fmt.Sprintf(`"%s"`, formatter.Ellipsis(str, 19))
}

// RemoveSha remove image sha from a string that are added in some docker outputs
func RemoveSha(str string) string {
	return strings.Split(str, "@")[0]
}

// HumanDuration from docker/cli RunningFor() to be accessible outside of the class
func HumanDuration(timestamp int64) string {
	date := time.Unix(timestamp, 0)
	now := time.Now().UTC()
	return units.HumanDuration(now.Sub(date)) + " ago"
}

// CreateTable prepares a table layout for output.
func CreateTable(columns []string) *tablewriter.Table {
	table := tablewriter.NewWriter(os.Stdout)
	table.SetHeader(columns)
	return table
}