(defvar auctex-packages
  '(
    auctex
    ))

(when (member 'company-mode dotspacemacs-configuration-layers)
  (add-to-list 'auctex-packages 'company-auctex))

(defun auctex/init-auctex ()
  (defun load-auctex-on-demand ()
    (interactive)
    (use-package tex
      :config
      (progn
        (when (member 'company-mode dotspacemacs-configuration-layers)
          (use-package company-auctex
            :init (company-auctex-init)))

        (defun auctex/build-view ()
          (interactive)
          (if (buffer-modified-p)
              (progn
                (let ((TeX-save-query nil))
                  (TeX-save-document (TeX-master-file)))
                (setq build-proc (TeX-command "LaTeX" 'TeX-master-file -1))
                (set-process-sentinel  build-proc  'auctex/build-sentinel))
            (TeX-view)))

        (defun auctex/build-sentinel (process event)
          (if (string= event "finished\n")
              (TeX-view)
            (message "Errors! Check with C-`")))

        (add-hook 'LaTeX-mode-hook '(lambda () (local-set-key (kbd "H-r") 'auctex/build-view)))
        (add-hook 'LaTeX-mode-hook 'flyspell-mode)
        (add-hook 'LaTeX-mode-hook 'LaTeX-math-mode)
        (add-hook 'LaTeX-mode-hook 'spacemacs/load-yasnippet)

        (evil-leader/set-key-for-mode 'latex-mode
          "mb" 'auctex/build-view
          "me" 'LaTeX-environment
          "mc" 'LaTeX-close-environment)

        (setq-default TeX-auto-save t)
        (setq-default TeX-parse-self t)
        (setq-default TeX-master nil)
        (setq-default TeX-PDF-mode t))))
  (evil-leader/set-key
    "el" 'load-auctex-on-demand))