;;; gnosis-algorithm.el --- Gnosis development tools  -*- lexical-binding: t; -*-

;; Copyright (C) 2023  Thanos Apollo

;; Author: Thanos Apollo <public@thanosapollo.org>
;; Keywords: extensions
;; URL: https://git.thanosapollo.org/gnosis
;; Version: 0.0.1

;; Package-Requires: ((emacs "27.2") (compat "29.1.4.2"))

;; 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/>.

;;; Commentary:

;; Development module for gnosis, to make development of gnosis.el
;; easier by creating a testing environment with random inputs.

;;; Code:

(require 'gnosis)

(defvar gnosis-dev-tags '("anatomy" "thoracic" "serratus-anterior"
			  "biochemistry" "informatics" "amino-acids"
			  "microbiology" "gram-positive" "gram-negative"
			  "fungi" "parasites"))

(defun gnosis-dev-random-items (list x)
  "Select X random items from LIST."
  (let ((shuffled-list (copy-sequence list))
        selected-items)
    (dotimes (_ x)
      (let* ((index (random (length shuffled-list)))
             (item (nth index shuffled-list)))
        (setq selected-items (cons item selected-items))
        (setq shuffled-list (append (butlast shuffled-list index) (nthcdr (1+ index) shuffled-list)))))
    selected-items))

(defun gnosis-dev-add-fields (&optional num deck)
  "Add random inputs to test.

NUM: Number of random inputs to add.
DECK: Deck to add the inputs to."
  (let ((num (or num (string-to-number (read-string "Number of random inputs: "))))
	(testing-deck (or deck "testing")))
    (unless (gnosis-get 'name 'decks `(= name ,testing-deck))
      (gnosis-add-deck testing-deck))
    (when (y-or-n-p "Add MCQ type?")
      (dotimes (_ num)
	(gnosis-add-note--mcq :deck testing-deck
			      :question "A 37-year-old man is admitted to the
emergency department after a severe car crash. After examining the
patient the emergency medicine physician concludes that the serratus
anterior muscle is damaged. Which of the following nerves innervates
the serratus anterior muscle?"
			      :choices '("Long thoracic" "Axillary" "Spinal accessory" "Dorsal scapular" "Thoracodorsal")
			      :correct-answer 1
			      :extra "The long thoracic is the only nerve that
innervates the serratus anterior. The axillary nerve innervates the
deltoid, the spinal accessory nerve innervates the sternocleidomastoid
and trapezius, the dorsal scapular nerve supplies the rhomboid muscles
and levator scapulae, and the latissimus dorsi is the muscle supplied
by the thoracodorsal nerve."
			      :tags (gnosis-dev-random-items gnosis-dev-tags 2))))
    (when (y-or-n-p "Add Basic type questions?")
      (dotimes (_ num)
	(gnosis-add-note--basic :deck testing-deck
				:question "A question"
				:hint "hint"
				:answer "answer"
				:extra "extra"
				:tags (gnosis-dev-random-items gnosis-dev-tags 2))))
    (when (y-or-n-p "Add single cloze type?")
      (dotimes (_ num)
	(gnosis-add-note--cloze :deck testing-deck
				:note "this is a {c1:note}"
				:hint "note"
				:tags (gnosis-dev-random-items gnosis-dev-tags 2)
				:extra "extra")))
    (when (y-or-n-p "Add note with multiple clozes?")
      (dotimes (_ num)
	(gnosis-add-note--cloze :deck testing-deck
				:note "this is a {c1:note} with multiple {c1:clozes}"
				:hint "note"
				:tags (gnosis-dev-random-items gnosis-dev-tags 2)
				:extra "extra")))
    (when (y-or-n-p "Add note type y-or-n?")
      (dotimes (_ num)
	(gnosis-add-note--y-or-n :deck testing-deck
				 :question "Is Codeine recommended in breastfeeding mothers?"
				 :hint "hint"
				 :answer 110
				 :extra "extra"
				 :tags (gnosis-dev-random-items gnosis-dev-tags 2))))))

(defun gnosis-dev-test ()
  "Begin/End testing env.

If ask nil, leave development env"
  (interactive)
  (let ((ask (y-or-n-p "Start development env (n for exit)?"))
	(testing-dir (concat gnosis-dir "testing")))
    (if ask
	(progn
	  (unless (file-exists-p testing-dir)
	    (make-directory testing-dir))
	  (setf gnosis-db (emacsql-sqlite-open (expand-file-name "testing.db" testing-dir)))
	  (setf gnosis-testing t)
	  (dolist (table '(notes decks review review-log extras))
	    (condition-case nil
		(gnosis--drop-table table)
	      (error (message "No %s table to drop." table))))
	  (gnosis-db-init)
	  (gnosis-dev-add-fields)
	  (message "Adding testing values...")
	  (message "Development env is ready for testing."))
      (setf gnosis-db (emacsql-sqlite-open (expand-file-name "gnosis.db" gnosis-dir)))
      (setf gnosis-testing nil)
      (message "Exited development env."))))


(provide 'gnosis-dev)
;;; gnosis-dev.el ends here