;; Copyright (C) 2022

;; This program is free software: you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.

;; This program is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
;; GNU General Public License for more details.

;; You should have received a copy of the GNU General Public License
;; along with this program.  If not, see <https://www.gnu.org/licenses/>.

(define-module (advent-of-code)
  #:export (read-file
            read-file-lines
            should-equal))

(use-modules (ice-9 textual-ports))

(define (read-file file)
  (with-input-from-file file
    (lambda ()      
      (get-string-all (current-input-port)))
    #:encoding "utf-8"))

(define (read-file-lines file)
  (string-split (read-file file) #\newline))

(define (should-equal a b)
  (unless (equal? a b)
    (error (format #f "Expected ~A\nActual ~A\n" a b))))