;; jump to the scratch buffer
(defun fc/switch-to-scratch ()
  "Switch to scratch, grab the region if it's active."
  (interactive)
  (let ((contents
         (and (region-active-p)
              (buffer-substring (region-beginning)
                                (region-end)))))
    (switch-to-buffer "*scratch*")
    (if contents
        (progn
          (goto-char (buffer-end 1))
          (insert contents)))))

(global-set-key (kbd "s-N") 'fc/switch-to-scratch)

;; rename a buffer
(defun fc/rename-this-buffer-and-file ()
  "Renames current buffer and file it is visiting."
  (interactive)
  (let ((name (buffer-name))
        (filename (buffer-file-name))
        (read-file-name-function 'read-file-name-default))
    (if (not (and filename (file-exists-p filename)))
        (error "Buffer '%s' is not visiting a file!" name)
      (let ((new-name (read-file-name "New name: " filename)))
        (cond ((get-buffer new-name)
               (error "A buffer named '%s' already exists!" new-name))
              (t
               (rename-file filename new-name 1)
               (rename-buffer new-name)
               (set-visited-file-name new-name)
               (set-buffer-modified-p nil)
               (message "File '%s' successfully renamed to '%s'" name (file-name-nondirectory new-name))))))))

;; find a wiki page
(defun fc/find-wiki-page ()
  "Finds wiki page."
  (interactive)
  (let ((collection
         (delete-dups
          (append (directory-files fc/wiki-dir-location)))))
    (ivy-read "wiki pages:" collection
              :action (lambda (x) (find-file (concat fc/wiki-dir-location x)))
              :caller 'fc/find-wiki-page)))

(global-set-key (kbd "C-c w") 'fc/find-wiki-page)

(provide 'my-functions)