// package is like namespace. Every file has one
package main

// HINT: To import just file you can the format import "<package-name">
import (
	"github.com/spf13/cobra"
  "io/ioutil"
  "log"
  "fmt"
)

// Like in C/C++/Java there is a main function
func main() {
  var listExer = &cobra.Command {
    Use: "leetcode",
    Short: "list all exercises",
    Long: "leetcode ls",
    Run: func(cmd *cobra.Command, args []string) {
      leet_code_dir := "/home/aerex/.nb/leetcode/exercises"
      files, err := ioutil.ReadDir(leet_code_dir)
      if err != nil {
        log.Fatal(err)
      }

      for _, file := range files {
        fmt.Println(file.Name())
      }
    },
  }

  var rootCmd = &cobra.Command{
    Use: "leetcode <command>",
  }
  rootCmd.AddCommand(listExer)

}