123 lines
3.0 KiB
Racket
123 lines
3.0 KiB
Racket
#lang racket/base
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(require racket/list
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racket/file
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racket/string
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"config.rkt"
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"io.rkt"
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"messages.rkt")
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(provide (all-defined-out))
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(define (d-hash-ref hash-list key)
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(display (hash-ref hash-list 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 (quote-item-in-list lst args)
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(display
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(string-append
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"\""
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(list-ref lst
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(string->number args))
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"\"")))
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(define (make-numbered lst)
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(map
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string-append
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(map
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number->string
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(range (length lst)))
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lst))
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(define (add-spaces)
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(lambda (lst)
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(string-append ". " lst)))
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(define (show-list-from-file)
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(let
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([todo-list
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(file->lines path
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#:mode 'text
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#:line-mode 'linefeed)])
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(display
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(string-join
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(make-numbered (map (add-spaces) todo-list))
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"\n"
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#:after-last "\n"))))
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(define (show-list)
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(if
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(and
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(check-for-folder)
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(check-for-file))
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(show-list-from-file)
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(begin
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(d-hash-ref messages 'file-not-found)
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(d-hash-ref messages 'try-init))))
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(define (add-item-to-file args)
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(let ([args (string-append args "\n")])
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(display-to-file args
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path
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#:mode 'text
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#:exists 'append)))
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(define (add-item args)
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(if
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(and
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(check-for-folder)
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(check-for-file))
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(begin
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(add-item-to-file (vector-ref args 1))
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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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(begin
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(d-hash-ref messages 'file-not-found)
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(d-hash-ref messages 'try-init))))
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(define (remove-item-from-file args)
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(let ([todo-list
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(file->lines path
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#:mode 'text
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#:line-mode 'linefeed)])
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(d-hash-ref messages 'item-removed-prefix)
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(quote-item-in-list todo-list args)
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(d-hash-ref messages 'item-removed-suffix)
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(let ([new-list
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(remove
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(list-ref
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todo-list
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(string->number
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args))
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todo-list)])
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(display-to-file
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(string-append (string-join new-list "\n") "\n")
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path
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#:mode 'text
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#:exists 'replace))))
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(define (remove-item args)
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(let ([todo-list
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(file->lines
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path
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#:mode 'text
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#:line-mode 'linefeed)])
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(cond
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[(< (length todo-list) 1)
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(d-hash-ref messages 'empty-todo-list)]
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[(and
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(number? (string->number (vector-ref args 1)))
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(< (string->number (vector-ref args 1)) (vector-length args))
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(check-for-folder)
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(check-for-file))
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(remove-item-from-file (vector-ref args 1))]
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[(and (not (check-for-folder)) (not (check-for-file)))
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(begin
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(d-hash-ref messages 'file-not-found)
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(d-hash-ref messages 'try-init))]
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[(>= (string->number (vector-ref args 1)) (vector-length args))
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(d-hash-ref messages 'not-in-list)])))
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