;; Persist command history
(savehist-mode 1)

;; Enable C-r in evil
(use-package undo-tree
    :ensure t)

;;;; TAGS configuration.
;; Goto tag with M-.
(global-set-key "\M-." 'etags-select-find-tag)
;; Automatically load TAGS file (if exists) when opening emacs.
(let ((my-tags-file (locate-dominating-file default-directory "TAGS")))
  (when my-tags-file
    (message "Loading tags file: %s" my-tags-file)
    (visit-tags-table my-tags-file)))

;; Resize windows
(global-set-key (kbd "S-C-h") 'shrink-window-horizontally)
(global-set-key (kbd "S-C-l") 'enlarge-window-horizontally)
(global-set-key (kbd "S-C-j") 'shrink-window)
(global-set-key (kbd "S-C-k") 'enlarge-window)

;;;; Company configuration.
(use-package company
  :ensure t
  :defer t
  :init (global-company-mode)
  :config
  (progn
    (add-to-list 'completion-styles 'initials t)
    (bind-key "M-<tab>" #'company-complete company-mode-map)
    (setq company-tooltip-align-annotations t
          tab-always-indent 'complete)
    (setq company-dabbrev-downcase nil))
  :diminish company-mode)

;;;; Evil mode configuration.
(use-package evil
    :ensure t
    :init ;; tweak evil's configuration before loading it
    (setq evil-search-module 'evil-search
          evil-ex-complete-emacs-commands nil
          evil-vsplit-window-right t
          evil-split-window-below t
          evil-shift-round nil
          evil-want-C-u-scroll t)
    :config ;; tweak evil after loading it
    (evil-mode)
    (setq evil-want-C-u-scroll t)
    (eval-after-load "evil-maps"
      ;; Unset Evil's "M-." keymap so that TAGS definitions can be followed.
      (define-key evil-normal-state-map "\M-." nil)))

(use-package undo-tree
    :ensure t)

;;;; Heml mode configuration.
(use-package helm
    :diminish
    :init (helm-mode t)
    :bind
        ("M-x"     . helm-M-x)
        ("C-x C-f" . helm-find-files)
        ("C-x b"   . helm-mini)     ;; See buffers & recent files; more useful.
        ("C-x r b" . helm-filtered-bookmarks)
        ("C-x C-r" . helm-recentf)  ;; Search for recently edited files
        ("C-c i"   . helm-imenu)
        ("C-c h"   . helm-command-prefix)
        ("C-h a"   . helm-apropos)
    :config
    (setq helm-autoresize-max-height 0
          helm-autoresize-min-height 20
          helm-split-window-in-side-p           t
          helm-move-to-line-cycle-in-source     t
          helm-ff-search-library-in-sexp        t
          helm-scroll-amount                    8
          helm-ff-file-name-history-use-recentf t
          helm-echo-input-in-header-line t)
    (when (executable-find "firefox")
      (setq helm-google-suggest-use-curl-p t)))

(provide 'jenga-init)