package main

import (
	"fmt"
	"log"
	"os"
	"strings"
)

type outputStruct struct {
	RootHistory []rootHistoryCommand `json:"root_history_command"`
}

type rootHistoryCommand struct {
	Id            int    `json:"id"`
	ExecutionTime string `json:"excution_time"`
	Command       string `json:"command"`
}

func main() {
	var o outputStruct
	var err error
	o.RootHistory, err = getRootHistory()
	if err != nil {
		log.Fatalln(err)
	}
	for _, rh := range o.RootHistory {
		fmt.Printf("%d %s %s\n", rh.Id, rh.ExecutionTime, rh.Command)
	}
}

func getRootHistory() ([]rootHistoryCommand, error) {
	var rootHistoryCommands []rootHistoryCommand
	rawHistory, err := os.ReadFile("/home/kbn/.bash_history")
	if err != nil {
		err = fmt.Errorf("Ошибка при открытии файла /home/kbn/.bash_history : %s", err.Error())
		return nil, err
	}
	i := 0
	execTime := ""
	for _, line := range strings.Split(string(rawHistory), "\n") {
		var c rootHistoryCommand
		if strings.HasPrefix(line, "#") {
			execTime = strings.TrimLeft(line, "#")
		} else {
			c.Id = i
			i += 1
			c.ExecutionTime = execTime
			c.Command = line
			execTime = ""
			rootHistoryCommands = append(rootHistoryCommands, c)
		}

	}
	return rootHistoryCommands, err
}