95 lines
3.4 KiB
Racket
Executable File
95 lines
3.4 KiB
Racket
Executable File
#! /usr/bin/env racket
|
|
#lang racket/base
|
|
|
|
(require json racket/vector)
|
|
|
|
(define program-name "rodo")
|
|
(define program-file ".rodo")
|
|
(define program-path "~/")
|
|
|
|
(define (d-hash-ref hash-list key)
|
|
(displayln (hash-ref hash-list key)))
|
|
|
|
;;(define (add-to-list)
|
|
;; (let ([args (vector-ref (current-command-line-arguments) 1)])
|
|
;; (string-append "> Added " args " to list")))
|
|
|
|
;;(define (remove-from-list)
|
|
;; (let ([args (vector-ref (current-command-line-arguments) 1)])
|
|
;; (string-append "> Removed " args " from list")))
|
|
|
|
;; define all messages for quick access
|
|
|
|
(define messages
|
|
(hash
|
|
'incorrect-usage (string-append "> For usage type `" program-name " -h` or `" program-name " --help`")
|
|
|
|
'file-not-found (string-append "> " program-file " has not been setup in your " program-path " directory\n> Would you like to set it up now? [y/n]")
|
|
'file-exists-already (string-append "> " program-file " file already exists in " program-path)
|
|
|
|
'creating-file (string-append "> Creating a " program-file " file in your " program-path " directory...")
|
|
'file-exists-now (string-append "> " program-path program-file " have been successfully created")
|
|
'error-creating-file (string-append "> Error: Could not create " program-file " in your " program-path " directory.\n> This may be due to directory permissions")
|
|
|
|
'item-added "> Added item to list"
|
|
'item-removed "> Added item to list"
|
|
|
|
'terminating (string-append "> Exiting " program-name "...")
|
|
'choose-y/n "> Error: Please choose y or n"))
|
|
|
|
;; some possible user-input related "mistakes" that will be accepted for input
|
|
(define y/n
|
|
(hash
|
|
'yes '("yes" "Yes" "y" "Y")
|
|
'no '("no" "No" "n" "N")))
|
|
|
|
;; yet again, less typing for opening a file
|
|
(define (open/create-file path)
|
|
(let ([path (expand-user-path path)])
|
|
(let ([opened-file (open-output-file path
|
|
#:mode 'text
|
|
#:exists 'can-update)])
|
|
(close-output-port opened-file))))
|
|
|
|
;; talk with user if something goes wrong/right
|
|
(define (prompt-initialize prompt-message)
|
|
(d-hash-ref messages prompt-message)
|
|
(display "> ")
|
|
(let ([user-input (read-line)])
|
|
(cond
|
|
[(member user-input (hash-ref y/n 'yes))
|
|
(d-hash-ref messages 'creating-file)
|
|
(open/create-file (string-append program-path program-file))
|
|
(if (file-exists? (expand-user-path (string-append program-path program-file)))
|
|
(d-hash-ref messages 'file-exists-now)
|
|
(d-hash-ref messages 'error-creating-file))]
|
|
[(member user-input (hash-ref y/n 'no))
|
|
(d-hash-ref messages 'terminating)]
|
|
[else
|
|
(prompt-initialize 'choose-y/n)])))
|
|
|
|
(define (check-args args)
|
|
(let ([args-length (vector-length args)])
|
|
(cond
|
|
[(or (equal? args-length 0) (> args-length 2))
|
|
(d-hash-ref messages 'incorrect-usage)]
|
|
|
|
[(and (equal? args-length 2) (equal? (vector-member "add" args) 0))
|
|
(d-hash-ref messages 'item-added)]
|
|
|
|
[(and (equal? args-length 2) (equal? (vector-member "remove" args) 0))
|
|
(d-hash-ref messages 'item-removed)]
|
|
|
|
[(and (equal? args-length 1) (equal? (vector-member "init" args) 0))
|
|
(todo-list-exist?)])))
|
|
|
|
(define (todo-list-exist?)
|
|
(if (file-exists? (expand-user-path (string-append program-path program-file)))
|
|
(d-hash-ref messages 'file-exists-already)
|
|
(prompt-initialize 'file-not-found)))
|
|
|
|
(define (main)
|
|
(check-args (current-command-line-arguments)))
|
|
|
|
(main)
|