(custom-set-variables
 ;; custom-set-variables was added by Custom.
 ;; If you edit it by hand, you could mess it up, so be careful.
 ;; Your init file should contain only one such instance.
 ;; If there is more than one, they won't work right.
 '(package-selected-packages
   (quote
    (helm-flyspell flycheck which-key helm-swoop evil-leader helm spaceline evil use-package))))
(custom-set-faces
 ;; custom-set-faces was added by Custom.
 ;; If you edit it by hand, you could mess it up, so be careful.
 ;; Your init file should contain only one such instance.
 ;; If there is more than one, they won't work right.
 )

;; Bootstrap `use-package'
(require 'package)
(add-to-list 'package-archives '("melpa" . "http://melpa.org/packages/"))
(package-initialize)
(unless (package-installed-p 'use-package)
 (package-refresh-contents)
 (package-install 'use-package))

;; packages ---------------------------------------------------------------------------------------

;; evil
(use-package evil-leader
  :ensure t
  :config
  (global-evil-leader-mode)
  )
(use-package evil
  :config
  (evil-mode 1)
  (modify-syntax-entry ?_ "w")
  )

;; flycheck
(use-package flycheck
  :ensure t
  :init (global-flycheck-mode))

;; helm
(use-package helm
  :ensure t
  :config
  (define-key helm-map (kbd "TAB") #'helm-execute-persistent-action)
  (define-key helm-map (kbd "<tab>") #'helm-execute-persistent-action)
  (define-key helm-map (kbd "C-z") #'helm-select-action)
  )
(use-package helm-flyspell
  :ensure t
  :init (flyspell-mode)
  )
(use-package helm-swoop
  :ensure t
  )

;; org
(use-package org
  :ensure t
  )
(use-package org-brain 
  :ensure t
  :init
  (setq org-brain-path "~/brain")
  ;; For Evil users
  (with-eval-after-load 'evil
    (evil-set-initial-state 'org-brain-visualize-mode 'emacs))
  :config
  (setq org-id-track-globally t)
  (setq org-id-locations-file "~/.emacs.d/.org-id-locations")
  (setq org-brain-visualize-default-choices 'all)
  (setq org-brain-title-max-length 12))

;; spaceline
(use-package spaceline :ensure t)
(setq powerline-default-separator 'bar)
(spaceline-emacs-theme)

;; which-key
(use-package which-key
  :ensure t
  :config
  (setq which-key-popup-type 'minibuffer)
  (setq which-key-allow-evil-operators t)
  )
(which-key-mode)

;; theme ------------------------------------------------------------------------------------------

(menu-bar-mode -1)
(tool-bar-mode -1)
(toggle-scroll-bar -1)
;; TODO: color theme

(setq-default left-margin-width 0 right-margin-width 0)

(load-file "~/source/dotfiles/emacs/color-theme-tomorrow.el")
(color-theme-tomorrow-night)
(set-face-attribute 'helm-selection nil 
                    :background "#373b41"
                    :foreground "#c5c8c6")

;;; functions -------------------------------------------------------------------------------------

(defun flyspell-goto-previous-error (arg)
  "Go to arg previous spelling error."
  (interactive "p")
  (while (not (= 0 arg))
    (let ((pos (point))
          (min (point-min)))
      (if (and (eq (current-buffer) flyspell-old-buffer-error)
               (eq pos flyspell-old-pos-error))
          (progn
            (if (= flyspell-old-pos-error min)
                ;; goto beginning of buffer
                (progn
                  (message "Restarting from end of buffer")
                  (goto-char (point-max)))
              (backward-word 1))
            (setq pos (point))))
      ;; seek the next error
      (while (and (> pos min)
                  (let ((ovs (overlays-at pos))
                        (r '()))
                    (while (and (not r) (consp ovs))
                      (if (flyspell-overlay-p (car ovs))
                          (setq r t)
                        (setq ovs (cdr ovs))))
                    (not r)))
        (backward-word 1)
        (setq pos (point)))
      ;; save the current location for next invocation
      (setq arg (1- arg))
      (setq flyspell-old-pos-error pos)
      (setq flyspell-old-buffer-error (current-buffer))
      (goto-char pos)
      (if (= pos min)
          (progn
            (message "No more miss-spelled word!")
            (setq arg 0))))))

(defun check-previous-spelling-error ()
  "Jump to previous spelling error and correct it"
  (interactive)
  (push-mark-no-activate)
  (flyspell-goto-previous-error 1)
  (call-interactively 'helm-flyspell-correct))

(defun check-next-spelling-error ()
  "Jump to next spelling error and correct it"
  (interactive)
  (push-mark-no-activate)
  (flyspell-buffer)
  (flyspell-goto-next-error)
  (call-interactively 'helm-flyspell-correct))

(defun push-mark-no-activate ()
  "Pushes `point' to `mark-ring' and does not activate the region
 Equivalent to \\[set-mark-command] when \\[transient-mark-mode] is disabled"
  (interactive)
  (push-mark (point) t nil)
  (message "Pushed mark to ring"))

;;; hooks -----------------------------------------------------------------------------------------

(add-hook 'text-mode-hook 'flyspell-mode)

;; keybindings ------------------------------------------------------------------------------------

(evil-leader/set-key "b" 'org-brain-visualize)
(evil-leader/set-key "f" 'helm-find-files)
(evil-leader/set-key "j" 'dired-jump)
(evil-leader/set-key "k" 'kill-buffer)
(evil-leader/set-key "m" 'helm-mini)
(evil-leader/set-key "q" 'save-buffers-kill-terminal)
(evil-leader/set-key "s" 'check-next-spelling-error)
(evil-leader/set-key "t" 'color-theme-tomorrow-night)
(evil-leader/set-key "T" 'color-theme-tomorrow)
(evil-leader/set-key "x" 'helm-M-x)
(evil-leader/set-key "," 'other-window)