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;; Time-stamp: <2021-09-27 08h48 EDT (hobbies)>

(use-package elpher
  :ensure t
  :defer)

(use-package visual-fill-column
  :ensure t
  :defer)

(defvar gemlog-directory (expand-file-name "~/hobbies/l-3.space/"))
(defvar gemlog-file-name "%y%02m%02d")
(defvar gemlog-time-string "%Y-%02m-%02d %02Hh%02M %Z")
(defvar gemlog-time-zone "UTC")

(defun gemlog-new-entry ()
  (interactive)
  (let* ((title (read-string "Title: "))
	 (number 1)
	 (file (format "%s/log-%s-%d.gmi"
		       gemlog-directory
		       (format-time-string gemlog-file-name nil t)
		       number)))
    (while (file-exists-p file)
      (setq number (+ 1 number))
      (setq file (format "%s/log-%s-%d.gmi"
			 gemlog-directory
			 (format-time-string gemlog-file-name nil t)
			 number)))
    (find-file file)
    (setq-local time-stamp-time-zone gemlog-time-zone
		time-stamp-format gemlog-time-string)
    (insert "Time-stamp: <>") (newline) (newline)
    (insert "# " title) (newline) (newline)
    (time-stamp)))

(defvar gemini-footnote-symbols '("⁰" "¹" "²" "³" "⁴" "⁵" "⁶" "⁷" "⁸" "⁹" "ᵃ" "ᵇ" "ᶜ" "ᵈ" "ᵉ" "ᶠ"))

(defun gemini-insert-footnote ()
  (interactive)
  (let ((symb (car gemini-footnote-symbols))
	(n 0))
    (while (and symb (save-excursion (beginning-of-buffer) (search-forward symb nil t)))
      (setq n (1+ n)
	    symb (nth n gemini-footnote-symbols)))
    (if (not symb) (message "Ran out of footnote symbols. Customise `gemini-footnote-symbols'.")
      (insert symb)
      (end-of-buffer)
      (unless (= (point) (point-at-bol)) (newline))
      (insert symb " "))))

(use-package gemini-mode
  :ensure t
  :bind (:map gemini-mode-map
	      ("C-c C-f" . gemini-insert-footnote))
  :hook (gemini-mode . (lambda ()
			 (setq time-stamp-time-zone gemlog-time-zone
			       time-stamp-format gemlog-time-string)
			 (setq-local indent-tabs-mode nil)
			 (auto-fill-mode -1)
			 (set-fill-column 80))))