;;;; oneliner.lisp -- holds a local representation of onelienrs.

;; Copyright (C) 2022  Colin Okay

;; This program is free software: you can redistribute it and/or modify
;; it under the terms of the GNU Affero 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 Affero General Public License for more details.

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


(in-package :oneliners.cli)

(defstruct oneliner
  id
  name
  oneliner
  tags
  brief
  explanation
  runstyle
  createdat
  editedat
  createdby
  isflagged
  islocked)


(defun collect-positional-arguments (ol)
  "Collects the names of all positional arguments in the oneliner, prefix included."
  (remove-duplicates 
   (sort 
    (ppcre:all-matches-as-strings "#[1-9][0-9]*" (oneliner-oneliner ol))
    #'string<)
   :test #'equal))

(defun collect-named-arguments (ol)
  "Collects the names of all named arguments in the oneliner, prefix included"
  (remove-duplicates 
   (ppcre:all-matches-as-strings "#[A-Za-z][A-Za-z0-9_]*" (oneliner-oneliner ol))
   :test #'equal))

(defun tags-from-oneliner (string)
  "Splits a string using consequitive whitespace as a separator,
returning a set of tags"
  (remove-duplicates
   (remove-if-not #'executable-on-system-p (ppcre:split " +" string))
   :test #'equal))




;;; VALIDATION OF ONELINER SLOT VALUES

(defun valid-oneliner-string-p (string)
  (and (not (find #\newline string))
       (tags-from-oneliner string)))

(defun valid-brief-description-p (string)
  (<= (length string) 72))

(defun valid-runstyle-p (string)
  (member string '("auto" "manual") :test 'equalp))

(defun valid-oneliner-name-p (string)
  (or (equal string "")
      (and (< 2 (length string)) 
           (ppcre:scan "^[a-zA-Z][a-zA-Z0-9_\-]+$" string))))