;;; funcs.el --- ocaml Layer functions File for Spacemacs
;;
;; Copyright (c) 2012-2022 Sylvain Benner & Contributors
;;
;; Author: Sylvain Benner <sylvain.benner@gmail.com>
;; URL: https://github.com/syl20bnr/spacemacs
;;
;; This file is not part of GNU Emacs.
;;
;; 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 <http://www.gnu.org/licenses/>.


(defun spacemacs//init-ocaml-opam ()
  (if (executable-find "opam")
        (let* ((share-dir-from-command (lambda (command)
                (string-trim-right
                 (with-output-to-string
                   (with-current-buffer standard-output
                                        (process-file shell-file-name nil
                                        '(t nil)
                                        nil
                                        shell-command-switch
                                        command))))))
               (share-new (funcall share-dir-from-command "opam var share"))
               (share (if (string= "" share-new)
                          (funcall share-dir-from-command "opam config var share")
                          share-new)))
          (cond
           ((string= "" share)
            (spacemacs-buffer/warning "\"opam config var share\" and \"opam var share\" both output empty string."))
           ((not (file-directory-p share))
            (spacemacs-buffer/warning "opam share directory does not exist."))
           (t (setq opam-share share
                    opam-load-path
                    (concat share "/emacs/site-lisp"))
              (add-to-list 'load-path opam-load-path))))
    (unless (executable-find "ocamlmerlin")
      (spacemacs-buffer/warning (concat "Cannot find \"opam\" or \"merlin\" executable. "
                                        "The ocaml layer won't work properly.")))))

(defun spacemacs/merlin-locate ()
  (interactive)
  (let ((merlin-locate-in-new-window 'never))
    (merlin-locate)))

(defun spacemacs/merlin-locate-other-window ()
  (interactive)
  (let ((merlin-locate-in-new-window 'always))
    (merlin-locate)))
