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main.go
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main.go
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package main
import (
"flag"
"fmt"
"os"
"strconv"
"time"
"github.com/pkg/errors"
"github.com/rmanzoku/ethutils/utils"
"golang.org/x/net/context"
)
var (
rpc = os.Getenv("RPC")
)
func run(args []string) (err error) {
ctx := context.TODO()
target, err := strconv.ParseInt(args[0], 10, 64)
if err != nil {
return
}
cli, err := utils.NewEthClient(rpc)
if err != nil {
return
}
latestBlock, err := cli.BlockByNumber(ctx, nil)
if err != nil {
return err
}
latest := latestBlock.Number().Int64()
now := time.Now().Unix()
diff := target - latest
if diff < 0 {
return errors.New("past block target")
}
fmt.Printf("target: %d, current: %d, left: %d\n", target, latest, diff)
time19 := time.Unix((diff*19)+now, 0)
time17 := time.Unix((diff*17)+now, 0)
time15 := time.Unix((diff*15)+now, 0)
time13 := time.Unix((diff*13)+now, 0)
time11 := time.Unix((diff*11)+now, 0)
fmt.Printf("time19: " + time19.Format(time.RFC1123Z) + "\n")
fmt.Printf("time17: " + time17.Format(time.RFC1123Z) + "\n")
fmt.Printf("time15: " + time15.Format(time.RFC1123Z) + "\n")
fmt.Printf("time13: " + time13.Format(time.RFC1123Z) + "\n")
fmt.Printf("time11: " + time11.Format(time.RFC1123Z) + "\n")
return
}
func main() {
flag.Parse()
if err := run(flag.Args()); err != nil {
panic(err)
}
}