package main

//
//import "slurm/submitjob"
//import "slurm"
//import "os/user"
//import "os"
//import "strconv"
//import "fmt"
//import "os/exec"
//import "path/filepath"
//import "slurm/jobinfo"
//import "time"
//
//
//func fileExists(filename string) bool {
//    info, err := os.Stat(filename)
//    if os.IsNotExist(err) {
//	return false
//    }
//    return !info.IsDir()
//}
//func build_container(file_name,container_name string){
//
//	cmd := exec.Command("sudo","/usr/local/bin/singularity", "build",container_name, file_name)
//	fmt.Print("Now build new container")
//	fmt.Printf("%s\n", cmd.String())
//	stdoutStderr, err := cmd.CombinedOutput()
//	if err != nil {
//			fmt.Printf("error in creating container %s \n", err)
//
//			fmt.Printf("%s\n", stdoutStderr)
////		return
//	}
//	fmt.Printf("%s\n", stdoutStderr)
//}
//
//func main(){
//	job_desc :=  submit_job.Job_descriptor{}
//
//	dir, _ := os.Getwd()
//		container := filepath.Join(dir, "mpi_container.img")
//	definition := filepath.Join(dir, "mpi_container.def")
//	if !fileExists(container){
//		build_container(definition,container)
//	}
//
//	if !fileExists(container){
//		return
//	}
//	/* use Cmd to create our script */
//
//	job_desc.Script = "#!/bin/bash\n export PATH=$PATH:/usr/local/bin\n hostname \n"
//	cmd := exec.Command( "/home0/opt/openmpi/bin/mpirun", "-mca  btl_tcp_if_include eth1", "/usr/local/bin/singularity", "exec",container, "/opt/mpi_pingpong" )
//	job_desc.Script+= cmd.String()
//	fmt.Printf("cmd %s\n", 	job_desc.Script)
//	user, _:= user.Current()
//	userid , _ := strconv.Atoi(user.Uid)
//	job_desc.User_id= uint32(userid)
//	groupid , _ := strconv.Atoi(user.Gid)
//
//	job_desc.Group_id= uint32(groupid)
//	job_desc.Name = "mpi_job"
//	job_desc.Partition="long"
//	job_desc.Time_limit = uint32(60)
//	job_desc.Min_nodes =uint32(2)
//	job_desc.Num_tasks = uint32(2)
//	job_desc.Std_out = ("./%j-out.txt")
//	job_desc.Std_err = ("./%j-err.txt")
//	job_desc.Work_dir = dir
//
//	answer := submit_job.Submit_job(&job_desc)
//	if(answer.Error_code != 0) {
//		msg := slurm.GetErrorString(answer.Error_code)
//		fmt.Printf("Error: %s\n" ,msg)
//		return
//	}
//	fmt.Printf("Submitted Job %d\n", answer.Job_id)
//
//
//	job_list := job_info.Get_job(answer.Job_id)
//	if job_list.Error_code != 0 {
//		msg := slurm.GetErrorString(job_list.Error_code)
//		fmt.Printf("Error: %s\n" ,msg)
//		return
//
//	}
//	job := job_list.Job_list[0]
//
//	fmt.Printf("job %d is %s\n",answer.Job_id, job.Job_stateS)
//	state := job.Job_stateS
//	for state == "Pending" || state == "Running" {
//		time.Sleep(2 * time.Second)
//		job_list = job_info.Get_job(answer.Job_id)
//		if job_list.Error_code != 0 {
//			msg := slurm.GetErrorString(job_list.Error_code)
//			fmt.Printf("Error: %s\n" ,msg)
//			return
//
//		}
//		job = job_list.Job_list[0]
//
//		state = job.Job_stateS
//
//		fmt.Printf("job %d is %s\n",answer.Job_id, job.Job_stateS)
//
//
//	}
//
//	fmt.Printf("Total runtime Job %d:  %s\n",job.Job_id, job_info.Get_job_runtime(job).String() )
//
//}