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path: root/conf/user.go
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package main

import (
	"os"
	"fmt"
	"log"
	"strings"
	"bufio"
	"syscall"
	"golang.org/x/term"
	db "sanine.net/git/phlox/db"
)


func GetUsername(prompt string) (string, error) {
	reader := bufio.NewReader(os.Stdin)

	fmt.Print(prompt)
	username, err := reader.ReadString('\n')
	if err != nil {
		return "", err
	}

	return strings.TrimSpace(username), nil
}


func GetPassword(prompt string) (string, error) {
	fmt.Print(prompt)
	bytes, err := term.ReadPassword(int(syscall.Stdin))
	if err != nil {
		return "", err
	}

	password := strings.TrimSpace(string(bytes))
	return password, nil
}


func ConfirmPassword() string {
	password, err := GetPassword("Enter Password: ")
	if err != nil { log.Fatal(err) }
	fmt.Println()
	password1, err := GetPassword("Confirm Password: ")
	if err != nil { log.Fatal(err) }
	fmt.Println()
	if password != password1 { log.Fatal("passwords do not match!") }
	return password
}


func GetUser() db.User {
	OpenDb()
	username, err := GetUsername("Username: ")
	if err != nil { log.Fatal(err) }
	user, err := p.GetByUsername(username)
	if err != nil { log.Fatal(err) }
	return user
}


func CreateUser() *Command {
	return &Command{
		Flag: "create-user",
		Usage: "create a new user",
		Invoke: func() {
			OpenDb()

			username, err := GetUsername("Enter Username: ")
			if err != nil { log.Fatal(err) }
			password := ConfirmPassword()

			_, err = p.CreateUser(username, password)
			if err != nil { log.Fatal(err) }
			fmt.Printf("created user %v\n", username)
		},
	}
}


func DeleteUser() *Command {
	return &Command{
		Flag: "delete-user",
		Usage: "delete an existing user",
		Invoke: func() {
			user := GetUser()
			err := p.DeleteUser(user)
			if err != nil { log.Fatal(err) }
			fmt.Printf("deleted user %v\n", user.Name)
		},
	}
}


func UpdatePassword() *Command {
	return &Command{
		Flag: "update-password",
		Usage: "update a user's password",
		Invoke: func() {
			user := GetUser()
			password := ConfirmPassword()
			err := p.SetPassword(user, password)
			if err != nil { log.Fatal(err) }
			fmt.Printf("updated password for user %v\n", user.Name)
		},
	}
}


func ListUsers() *Command {
	return &Command{
		Flag: "list-users",
		Usage: "list all users",
		Invoke: func() {
			OpenDb()
			users, err := p.AllUsers()
			if err != nil { log.Fatal(err) }
			fmt.Println("id\t\tname")
			fmt.Println("========================================")
			for _, user := range users {
				fmt.Printf(
					"%v\t\t%v\n", user.Id, user.Name,
				)
			}
		},
	}
}