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