;;;; .emacs --- Emacs init file
;;;; Commentary:



;;;; Code:
;;  ______   ______ _____ _____ __  __   ___ _   _ _____ ___  ____
;; / ___\ \ / / ___|_   _| ____|  \/  | |_ _| \ | |  ___/ _ \/ ___|
;; \___ \\ V /\___ \ | | |  _| | |\/| |  | ||  \| | |_ | | | \___ \
;;  ___) || |  ___) || | | |___| |  | |  | || |\  |  _|| |_| |___) |
;; |____/ |_| |____/ |_| |_____|_|  |_| |___|_| \_|_|   \___/|____/
;;
;; Check if system is Darwin/Mac OS X
(setq is-mac (equal system-type 'darwin))
;; Check if system is GNU/Linux
(setq is-gnu (equal system-type 'gnu/linux))
;; Check if system is desktop "saitama"
(setq is-saitama (equal (system-name) "saitama"))
;; Check if system is laptop "genos"
(setq is-genos (equal (system-name) "genos.local"))
;; Check if there's we are connected to an host given as optional parameter
(defun is-connected-to (&optional host)
  "Return if we are or not connected to an HOST."
  (= 0 (call-process "ping" nil nil nil "-c" "1" "-W" "1"
                     (if host host "www.google.fr"))))



;;   ____ _     ___  ____    _    _
;;  / ___| |   / _ \| __ )  / \  | |
;; | |  _| |  | | | |  _ \ / _ \ | |
;; | |_| | |__| |_| | |_) / ___ \| |___
;;  \____|_____\___/|____/_/   \_\_____|
;;
;; User details
(setq user-full-name "Jeff LANCE"
      user-mail-address "jeff.lance@mala.fr")

;; My directory Location
(defconst jeff/emacsd (concat (getenv "HOME") "/.emacs.d/"))
(defun my-emacssubd (d)
  "Define a subdirectory named D from the ~/.emacs.d location."
  (expand-file-name d jeff/emacsd))

;; Directory structure
(let* ((subdirs '("elisp" "backups"))
       (fulldirs (mapcar (lambda (d) (my-emacssubd d)) subdirs)))
  (dolist (dir fulldirs)
    (when (not (file-exists-p dir))
      (message "Make directory: %s" dir)
      (make-directory dir))))

;; Setting up the Load Path
;; Packages not available in the package manager are stored in the
;; personal directory: $HOME/.emacs.d/elisp
(add-to-list 'load-path (my-emacssubd "elisp"))
;;(let ((default-directory "~/.emacs.d/elisp" ))
;;  (normal-top-level-add-subdirs-to-load-path))

;; Redirect custom system config to another file
(setq custom-file (concat jeff/emacsd "custom.el"))
(if (file-exists-p custom-file)
  (load custom-file))

;; Force locale environment setting as it cause an error when compile
;; LaTeX file with LuaLaTeX.
(setenv "LC_ALL" "fr_FR.UTF-8")



;;  ____ _____  _    ____ _____     _   _ ____
;; / ___|_   _|/ \  |  _ \_   _|   | | | |  _ \
;; \___ \ | | / _ \ | |_) || |_____| | | | |_) |
;;  ___) || |/ ___ \|  _ < | |_____| |_| |  __/
;; |____/ |_/_/   \_\_| \_\|_|      \___/|_|
;;
;; Splash screen
(setq inhibit-splash-screen t
      initial-scratch-message nil
      initial-major-mode 'org-mode)

;; Scroll bar, menu bar, tool bar
(scroll-bar-mode -1)
(tool-bar-mode -1)
(menu-bar-mode -1)

;; Marking text
(delete-selection-mode t)
(transient-mark-mode t)
(setq select-enable-clipboard t)

;; UTF-8
(set-terminal-coding-system 'utf-8)
(set-keyboard-coding-system 'utf-8)
(set-selection-coding-system 'utf-8)
(setq current-language-environment "UTF-8")
(prefer-coding-system 'utf-8)
(setenv "LC_CTYPE" "UTF-8")

;; Column and line numbers
(setq column-number-mode t
      line-number-mode t)

;; Indentation
; tabs for indentation.
(setq-default indent-tabs-mode nil)
; tab width is 2 spaces.
(setq tab-width 2)
; make tab key do indent first then completion.
(setq-default tab-always-indent 'complete)

;; Paren-mode
(show-paren-mode t)



;;  ____   _    ____ _  __    _    ____ _____ ____
;; |  _ \ / \  / ___| |/ /   / \  / ___| ____/ ___|
;; | |_) / _ \| |   | ' /   / _ \| |  _|  _| \___ \
;; |  __/ ___ \ |___| . \  / ___ \ |_| | |___ ___) |
;; |_| /_/   \_\____|_|\_\/_/   \_\____|_____|____/
;;
;; Package Manager
(require 'package)
(setq package-archives '(("org"       . "http://orgmode.org/elpa/")
                         ("gnu"       . "http://elpa.gnu.org/packages/")
                         ("melpa"     . "http://melpa.org/packages/")
                         ("marmalade" . "http://marmalade-repo.org/packages/")))
(package-initialize)
(if (is-connected-to) (package-refresh-contents)) ; package refresh if we are connected.

;; Use-package
(unless (package-installed-p 'use-package)
  (package-refresh-contents)
  (package-install 'use-package))
(require 'use-package)

;; AucTeX
(use-package auctex
  :ensure t
  :mode ("\\.tex\\'" . latex-mode)
  :commands (latex-mode LaTeX-mode plain-tex-mode)
  :init
    (progn
          (eval-after-load "tex"
            '(add-to-list 'TeX-command-list
            '("LatexMk Clean" "latexmk -lualatex %t && latexmk -c %t" TeX-run-command)))
    ;; (add-hook 'LaTeX-mode-hook #'LaTeX-preview-setup)
    (add-hook 'LaTeX-mode-hook 'visual-line-mode)
    (add-hook 'LaTeX-mode-hook 'flyspell-mode)
    (add-hook 'LaTeX-mode-hook 'LaTeX-math-mode)
    ;; (add-hook 'LaTeX-mode-hook #'turn-on-reftex)
    (setq TeX-auto-save t)
    (setq TeX-parse-self t)
    (setq TeX-save-query nil)
    (setq TeX-PDF-mode t)
    (setq-default TeX-master nil)))

;; AucTeX-LaTeXmk
(use-package auctex-latexmk
  :ensure t
  :config
    (auctex-latexmk-setup))

;; Yasnippet
;; Needed to load yasnippet before auto-complete to make them work together.
(use-package yasnippet
  :ensure t
  :init
    (unless (package-installed-p 'yasnippet-snippets)
    (package-refresh-contents)
    (package-install 'yasnippet-snippets))
  :config
    (yas-global-mode 1))

;; Auto-complete
(use-package auto-complete
  :ensure t
  :config
    (add-to-list 'ac-dictionary-directories (concat jeff/emacsd "ac-dict"))
    (setq ac-comphist-file (concat jeff/emacsd "ac-comphist.dat"))
    (ac-config-default)
    (ac-set-trigger-key "TAB")
    (ac-set-trigger-key "<tab>")
    (global-auto-complete-mode t)
    (auto-complete-mode))

;; Auto-insert
(use-package autoinsert
  :init
    (setq auto-insert-query nil)
    (setq auto-insert-directory (concat jeff/emacsd "my-templates/"))
    (add-hook 'find-file-hook 'auto-insert)
    (auto-insert-mode 1)
        :config
    (define-auto-insert "\\.py" ["python.py" my-autoinsert-yas-expand])
    (define-auto-insert "\\.sh" ["shellscript.sh" my-autoinsert-yas-expand])
    (define-auto-insert "\\.yml" ["yaml.yml" my-autoinsert-yas-expand]))

;; Better-defaults
(use-package better-defaults
  :ensure t)

;; Darkroom-mode
(use-package darkroom-mode
  :load-path "elisp/darkroom-mode"
  :config
    (setq darkroom-mode-face-foreground "Inconsolata 15")
    (setq darkroom-mode-face-size 150)
    (setq darkroom-mode-center-margin 150))

;; Deft
(use-package deft
  :ensure t)

;; Dired-open
(use-package dired-open
  :ensure t)

;; Ditaa
(setq org-ditaa-jar-path "/usr/bin/ditaa")

;; EditorConfig
(use-package editorconfig
  :ensure t
  :config
    (editorconfig-mode 1))

;; Elpy
(use-package elpy
  :ensure t
  :config
    (elpy-enable))

;; Exec-path-from-shell
(use-package exec-path-from-shell
;  :if (memq window-system '(mac ns))
  :ensure t
  :config
    (exec-path-from-shell-copy-env "TEXPATH")
    (setq exec-path-from-shell-check-startup-files nil)
    (exec-path-from-shell-initialize))

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

;; Iso-transl
;; Support deadkeys
(use-package iso-transl)

;; Linum
(use-package hlinum
  :ensure t
  :pin melpa
  :config
    (hlinum-activate)
    (setq linum-format "%4d \u2502")
    (setq linum-highlight-face "#bc0744")
    (global-linum-mode 1))

;; Lua-mode
(use-package lua-mode
  :ensure t
  :pin melpa
  :mode ("\\.lua\\'")
  :config
    (setq lua-indent-level 2))

;; Magit
(use-package magit
  :ensure t)

;; Markdown-mode
(use-package markdown-mode
  :ensure t
  :commands (markdown-mode gfm-mode)
  :mode (("README\\.md\\'" . gfm-mode)
         ("\\.md\\'"       . markdown-mode)
         ("\\.markdown\\'" . markdown-mode))
  :init
    (setq markdown-command "multimarkdown")
    (unless (package-installed-p 'markdown-preview-mode)
      (package-refresh-contents)
      (package-install 'markdown-preview-mode)))
(eval-after-load "markdown-mode"
  '(defalias 'markdown-add-xhtml-header-and-footer 'my-markdown-add-xhtml-header-and-footer))

;; Neotree
(use-package neotree
  :ensure t
  :init
    (unless (package-installed-p 'all-the-icons)
      (package-refresh-contents)
      (package-install 'all-the-icons)
      (all-the-icons-install-fonts))
  :config
    (setq neo-theme (if (display-graphic-p) 'icons 'arrow)))

;; Org
(use-package org
  :ensure t
  :pin org
  :mode ("\\.org\\'" . org-mode)
  :init
    (unless (package-installed-p 'org-plus-contrib)
      (package-refresh-contents)
      (package-install 'org-plus-contrib))
    (unless (package-installed-p 'org-bullets)
      (package-refresh-contents)
      (package-install 'org-bullets))
    (unless (package-installed-p 'org-ac)
      (package-refresh-contents)
      (package-install 'org-ac))
  :config
    (require 'ox-latex)
    (require 'ob-ditaa)
    (add-hook 'org-mode-hook (lambda () (org-bullets-mode 1)))
    (setq org-log-done t)
    (setq org-list-allow-alphabetical t)
    (setq org-agenda-files (file-expand-wildcards "~/Notes/*.org"))
    (setq org-tag-alist
          '((:startgroup . nil)
            ("@TRAVAIL" . ?t)
            ("@MAISON" . ?m)
	          (:endgroup . nil)
            (:startgroup . nil)
            ("ADMINISTRATIF" . ?a)
            ("COURS" . ?c)
            ("RECHERCHE" . ?r)
            ("DEV" . ?d)
            ("OS" . ?o)
            ("WWW" . ?w)
            (:endgroup . nil)
            (:startgroup . nil)
            ("EASY" . ?1)
            ("MEDIUM" . ?2)
            ("HARD" . ?3)
            (:endgroup . nil)
            ("URGENT" . ?u)
            )
          )
    (setq org-tags-column 80)
    (setq org-startup-indented t)
    (setq org-hide-leading-stars nil)
    (org-babel-do-load-languages
     'org-babel-load-languages
     '((ditaa . t))) ; this line activates ditaa
    (setq org-support-shift-select 'always)
    (setq org-latex-compiler "lualatex")
    (setq org-latex-pdf-process
          '("lualatex -shell-escape -synctex=1 -interaction nonstopmode %f"
            "lualatex -shell-escape -synctex=1 -interaction nonstopmode %f"))
    ;(setq org-latex-pdf-process '("latexmk -f %f"))
    (setq org-export-with-toc nil)
    (add-to-list 'org-latex-classes
                 '("devoir"
                   "\\documentclass{cours_devoir}"
                   ("\\section{%s}"       . "\\section*{%s}")
  	               ("\\subsection{%s}"	  . "\\subsection*{%s}")
                   ("\\subsubsection{%s}" . "\\subsubsection*{%s}")
                   ("\\paragraph{%s}" 	  . "\\paragraph*{%s}")
                   ("\\subparagraph{%s}"  . "\\subparagraph*{%s}")))
    (add-to-list 'org-latex-classes
                 '("cours_prof"
                   "\\documentclass{cours_prof}"))
    (add-to-list 'org-latex-classes
                 '("cours_beamer"
                   "\\documentclass{cours_beamer}")))

;; Pc-bufsw
(use-package pc-bufsw
  :ensure t
  :config
    (pc-bufsw-default-keybindings))

;; Powerline
(use-package powerline
  :ensure t
  :config
    (powerline-default-theme))

;; Rainbow-mode
(use-package rainbow-mode
  :ensure t
  :config
    (rainbow-mode))

;; Rigid-tabs
(use-package rigid-tabs
  :ensure t
  :config
    (rigid-tabs-mode))

;;; Rings
(use-package rings
  :ensure t)

;; Smart-mode-line
(use-package smart-mode-line
  :ensure t
  :pin melpa
  :config
    (setq sml/theme 'dark)
    (sml/setup))

;; Smart-tabs-mode
(use-package smart-tabs-mode
  :ensure t
  :config
    (smart-tabs-add-language-support lua lua-mode-hook
        ((lua-indent-line . lua-basic-offset)
         (lua-indent-region . lua-basic-offset)))
    (smart-tabs-insinuate 'c 'c++ 'javascript 'lua 'python 'ruby))

;; Smartparens
(use-package smartparens
  :ensure t
  :pin melpa
  :config
    (smartparens-global-mode 1)
    (sp-pair "$" "$")  ;; latex math inline mode
    (sp-pair "\[" "\]")) ;; latex math display mode

;; Smooth-scroll
(use-package smooth-scrolling
  :ensure t
  :pin melpa
  :config
    (smooth-scrolling-mode 1))

;; Tabbar-ruler
(use-package tabbar-ruler
  :ensure t
  :pin melpa
  :config
    (setq tabbar-ruler-global-tabbar t)
    (setq tabbar-ruler-popup-menu t)
    (setq tabbar-ruler-popup-scrollbar t))

;; Undo/Redo
(use-package undo-tree
  :ensure t
  :diminish undo-tree-mode
  :init
    (global-undo-tree-mode))

;; Which-key
(use-package which-key
  :ensure t
  :config
    (which-key-mode))



;;  _____ _   _ _   _  ____ _____ ___ ___  _   _ ____
;; |  ___| | | | \ | |/ ___|_   _|_ _/ _ \| \ | / ___|
;; | |_  | | | |  \| | |     | |  | | | | |  \| \___ \
;; |  _| | |_| | |\  | |___  | |  | | |_| | |\  |___) |
;; |_|    \___/|_| \_|\____| |_| |___\___/|_| \_|____/
;;
;; Generates a HTML 5 header instead of an XHTML header adds a UTF-8 charset declaration,
;; ignores markdown-content-type, markdown-coding-system and markdown-xhtml-header-content.
(defun my-markdown-add-xhtml-header-and-footer (title)
  "Wrap XHTML header and footer with given TITLE around current buffer."
  (goto-char (point-min))
  (insert "<!DOCTYPE html5>\n"
    "<html>\n"
    "<head>\n<title>")
  (insert title)
  (insert "</title>\n")
  (insert "<meta charset=\"utf-8\" />\n")
  (when (> (length markdown-css-paths) 0)
    (insert (mapconcat 'markdown-stylesheet-link-string markdown-css-paths "\n")))
  (insert "\n</head>\n\n"
    "<body>\n\n")
  (goto-char (point-max))
  (insert "\n"
    "</body>\n"
    "</html>\n"))

;; Clone current buffer to a file and switch to it.
(defun my-save-as-and-switch (filename)
  "Clone the current buffer to FILENAME and switch to the clone."
  (interactive "FCopy and switch to file: ")
  (save-restriction
    (widen)
    (write-region (point-min) (point-max) filename nil nil nil 'confirm))
  (find-file filename))

;; Clone current buffer to a file and don't switch to it.
(defun my-save-as-but-do-not-switch (filename)
  "Clone the current buffer to FILENAME but don't switch to the clone."
  (interactive "FCopy (without switching) to file:")
  (write-region (point-min) (point-max) filename)
  (find-file-noselect filename))

;; Clone current buffer to a file and switch or not to.
(defun my-save-as (filename)
  "Prompt user whether to switch to the clone named FILENAME."
  (interactive "FCopy to file: ")
  (if (y-or-n-p "Switch to new file ? ")
    (my-save-as-and-switch filename)
    (my-save-as-but-do-not-switch filename)))

;; Insert a litteral tab when pressing TAB key.
(defun my-insert-tab-char ()
  "Insert a tab char. (ASCII 9, \\t)."
  (interactive)
  (insert "\t"))

;; Mode-line
(defun my-add-mode-line-dirtrack ()
  "Show the current directory in the mode line."
  (add-to-list 'mode-line-buffer-identification
                  '(:propertize (" " default-directory " ") face dired-directory)))

;; Enable some minor modes
(defun my-enable-minor-modes ()
  "Enables several minor modes."
  (interactive "")
  (define-globalized-minor-mode real-global-auto-complete-mode
    auto-complete-mode (lambda ()
                         (if (not (minibufferp (current-buffer)))
                             (auto-complete-mode 1))))
  (real-global-auto-complete-mode t)
  (font-lock-mode 1)
  (my-add-mode-line-dirtrack)
  (rainbow-mode 1))

;; Insert date
(defun my-insert-date (prefix)
  "Insert the current date.
With prefix-argument, use ISO format.
With two PREFIX arguments,  write out the day and month name."
    (interactive "P")
    (let ((format (cond
                   ((not prefix) "%d/%m/%Y")
                   ((equal prefix '(4)) "%Y-%m-%d")
                   ((equal prefix '(16)) "%A, %d. %B %Y")))
          (system-time-locale "fr_FR"))
      (insert (format-time-string format))))

;; Insert comment title for LaTeX source
(defun my-insert-comment-title (string)
  "Insert STRING as a comment title for LaTeX sources."
  (interactive "sComment title: ")
  (insert (format "%%\n%%\n%% %s\n%%\n%%\n" string)))

;; Combining YAs and auto-insert
(defun my-autoinsert-yas-expand()
  "Replace text in yasnippet template."
  (yas-expand-snippet (buffer-string) (point-min) (point-max)))



;;  _  _________   ______ ___ _   _ ____ ___ _   _  ____ ____
;; | |/ / ____\ \ / / __ )_ _| \ | |  _ \_ _| \ | |/ ___/ ___|
;; | ' /|  _|  \ V /|  _ \| ||  \| | | | | ||  \| | |  _\___ \
;; | . \| |___  | | | |_) | || |\  | |_| | || |\  | |_| |___) |
;; |_|\_\_____| |_| |____/___|_| \_|____/___|_| \_|\____|____/
;; CUA-Mode : ctrl-v, ctrl-z, ctrl-x
(cua-mode)
;; Reload-buffer
(global-set-key (kbd "<C-f5>") 'eval-buffer)
;; Distraction-free mode
(global-set-key (kbd "<C-f11>") 'darkroom-mode)
;; Save-as and switch or not to cloned buffer
(global-set-key (kbd "C-x c") 'my-save-as)
;; Magit status
(global-set-key (kbd "C-x g") 'magit-status)
;; Neotree
(global-set-key (kbd "<f8>") 'neotree-toggle)
;; Org-mode
(global-set-key "\C-cl" 'org-store-link)
(global-set-key "\C-ca" 'org-agenda)
(global-set-key "\C-cc" 'org-capture)
(global-set-key "\C-cs" 'org-iswitchb)
(global-set-key "\C-ct" 'org-set-tags-command)
;; Pc-bufsw
(global-set-key (kbd "<C-next>") 'pc-bufsw-mru)
(global-set-key (kbd "<C-prior>") 'pc-bufsw-lru)
;; Rings
(global-set-key (kbd "<f2>")   (rings-generate-cycler 2))
(global-set-key (kbd "C-<f2>") (rings-generate-setter 2))
(global-set-key (kbd "<f3>")   (rings-generate-cycler 3))
(global-set-key (kbd "C-<f3>") (rings-generate-setter 3))
(global-set-key (kbd "<f4>")   (rings-generate-cycler 4))
(global-set-key (kbd "C-<f4>") (rings-generate-setter 4))
;; Tab
(global-set-key (kbd "TAB") 'my-insert-tab-char) ; same as Ctrl+i
;; Tabbar-ruler
(global-set-key (kbd "C-<prior>") 'tabbar-ruler-backward)
(global-set-key (kbd "C-<next>") 'tabbar-ruler-forward)
;; Insert date
(global-set-key (kbd "C-c d") 'insert-date)



;;  ___ _   _ _____ _____ ____  _____ _    ____ _____
;; |_ _| \ | |_   _| ____|  _ \|  ___/ \  / ___| ____|
;;  | ||  \| | | | |  _| | |_) | |_ / _ \| |   |  _|
;;  | || |\  | | | | |___|  _ <|  _/ ___ \ |___| |___
;; |___|_| \_| |_| |_____|_| \_\_|/_/   \_\____|_____|
;;
;; Theme
(use-package dracula-theme
  :ensure t)
(use-package melancholy-theme
  :ensure t)
(use-package org-beautify-theme
  :ensure t)
(use-package sourcerer-theme
  :ensure t)
(use-package sublime-themes
  :ensure t)
(load-theme 'dracula t)

;; Set minor modes
(add-hook 'c-mode-hook 'my-enable-minor-modes)
(add-hook 'emacs-lisp-mode-hook 'my-enable-minor-modes)
(add-hook 'latex-mode-hook 'my-enable-minor-modes)
(add-hook 'lua-mode-hook 'my-enable-minor-modes)
(add-hook 'org-mode-hook 'my-enable-minor-modes)
(add-hook 'org-mode-hook (lambda() (load-theme 'org-beautify)))
(add-hook 'shell-mode-hook 'my-enable-minor-modes)
(add-hook 'text-mode-hook 'my-enable-minor-modes)

;; Depends on host
(set-frame-font "Inconsolata 12") ;default font if not customized for host
(cond
 (is-saitama (set-frame-font "Inconsolata 11"))
 (is-genos (set-frame-font "Inconsolata 14") ;change font size on laptop
           (display-battery-mode 1) ;battery status
           ))


(provide '.emacs)
;;; .emacs ends here