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package crono
import (
"fmt"
"os"
"time"
"github.com/jedib0t/go-pretty/v6/table"
)
type Timing struct {
Msg string
Elapsed time.Duration
}
type Crono struct {
Begin time.Time
Cursor time.Time
Timings []Timing
}
// new cronograph with autostart.
func New() *Crono {
c := new(Crono)
c.Timings = make([]Timing, 0)
c.Begin = time.Now()
c.Cursor = c.Begin
return c
}
// restart the crono
// keeps the begin time.
func (c *Crono) Restart() {
c.Cursor = time.Now()
}
// push a mark.
func (c *Crono) Mark(msg string) {
c.Timings = append(c.Timings, Timing{msg, c.GetElapsed()})
}
// push a mark and restart the cursor time.
func (c *Crono) MarkAndRestart(msg string) {
c.Mark(msg)
c.Restart()
}
// time in seconds since last start
// it doesn't restart the crono.
func (c *Crono) GetElapsed() time.Duration {
return time.Since(c.Cursor)
}
// total time sice start.
func (c *Crono) Total() time.Duration {
return time.Since(c.Begin)
}
func (c *Crono) Table() {
t := table.NewWriter()
t.SetOutputMirror(os.Stdout)
t.AppendHeader(table.Row{"#", "Description", "Elapsed"})
for i, e := range c.Timings {
t.AppendRow([]interface{}{i, e.Msg, durationToString(e.Elapsed)})
}
t.AppendSeparator()
t.AppendFooter(table.Row{"", "Total", durationToString(c.Total())})
t.Render()
}
func durationToString(t time.Duration) string {
timeString := fmt.Sprintf("%dms", t.Milliseconds())
if t.Seconds() > 3 {
timeString += " !!!"
} else if t.Seconds() > 2 {
timeString += " .!!"
} else if t.Seconds() > 1 {
timeString += " ..!"
} else {
timeString += " ..."
}
return timeString
}