;;; core-spacemacs.el --- Spacemacs Core File
;;
;; Copyright (c) 2012-2016 Sylvain Benner & Contributors
;;
;; Author: Sylvain Benner <sylvain.benner@gmail.com>
;; URL: https://github.com/syl20bnr/spacemacs
;;
;; This file is not part of GNU Emacs.
;;
;;; License: GPLv3
(setq message-log-max 16384)
(defconst emacs-start-time (current-time))

(require 'subr-x nil 'noerror)
(require 'page-break-lines)
(require 'core-debug)
(require 'core-command-line)
(require 'core-dotspacemacs)
(require 'core-release-management)
(require 'core-auto-completion)
(require 'core-jump)
(require 'core-display-init)
(require 'core-themes-support)
(require 'core-fonts-support)
(require 'core-spacemacs-buffer)
(require 'core-keybindings)
(require 'core-toggle)
(require 'core-funcs)
(require 'core-micro-state)
(require 'core-transient-state)
(require 'core-use-package-ext)

(defgroup spacemacs nil
  "Spacemacs customizations."
  :group 'starter-kit
  :prefix 'spacemacs-)

;; loading progress bar variables
(defvar spacemacs-loading-char ?█)
(defvar spacemacs-loading-string "")
(defvar spacemacs-loading-counter 0)
(defvar spacemacs-loading-value 0)
;; (defvar spacemacs-loading-text "Loading")
;; (defvar spacemacs-loading-done-text "Ready!")
(defvar spacemacs-loading-dots-chunk-count 3)
(defvar spacemacs-loading-dots-count (window-total-size nil 'width))
(defvar spacemacs-loading-dots-chunk-size
  (/ spacemacs-loading-dots-count spacemacs-loading-dots-chunk-count))
(defvar spacemacs-loading-dots-chunk-threshold 0)

(defvar spacemacs-post-user-config-hook nil
  "Hook run after dotspacemacs/user-config")
(defvar spacemacs-post-user-config-hook-run nil
  "Whether `spacemacs-post-user-config-hook' has been run")

(defvar spacemacs--default-mode-line mode-line-format
  "Backup of default mode line format.")
(defvar spacemacs-initialized nil
  "Whether or not spacemacs has finished initializing by completing
the final step of executing code in `emacs-startup-hook'.")

(defun spacemacs/init ()
  "Perform startup initialization."
  (when spacemacs-debugp (spacemacs/init-debug))
  ;; silence ad-handle-definition about advised functions getting redefined
  (setq ad-redefinition-action 'accept)
  ;; this is for a smoother UX at startup (i.e. less graphical glitches)
  (hidden-mode-line-mode)
  (spacemacs//removes-gui-elements)
  ;; explicitly set the prefered coding systems to avoid annoying prompt
  ;; from emacs (especially on Microsoft Windows)
  (prefer-coding-system 'utf-8)
  ;; TODO move these variables when evil is removed from the bootstrapped
  ;; packages.
  (setq-default evil-want-C-u-scroll t
                ;; `evil-want-C-i-jump' is set to nil to avoid `TAB' being
                ;; overlapped in terminal mode. The GUI specific `<C-i>' is used
                ;; instead.
                evil-want-C-i-jump nil)
  (dotspacemacs/load-file)
  (require 'core-configuration-layer)
  (dotspacemacs|call-func dotspacemacs/init "Calling dotfile init...")
  (dotspacemacs|call-func dotspacemacs/user-init "Calling dotfile user init...")
  (setq dotspacemacs-editing-style (dotspacemacs//read-editing-style-config
                                    dotspacemacs-editing-style))
  (configuration-layer/initialize)
  ;; default theme
  (let ((default-theme (car dotspacemacs-themes)))
    (spacemacs/load-theme default-theme)
    ;; protect used themes from deletion as orphans
    (setq configuration-layer--protected-packages
          (append
           (delq nil (mapcar 'spacemacs//get-theme-package
                             dotspacemacs-themes))
           configuration-layer--protected-packages))
    (setq-default spacemacs--cur-theme default-theme)
    (setq-default spacemacs--cycle-themes (cdr dotspacemacs-themes)))
  ;; font
  (spacemacs|do-after-display-system-init
   ;; If you are thinking to remove this call to `message', think twice. You'll
   ;; break the life of several Spacemacser using Emacs in daemon mode. Without
   ;; this, their chosen font will not be set on the *first* instance of
   ;; emacsclient, at least if different than their system font. You don't
   ;; believe me? Go ahead, try it. After you'll have notice that this was true,
   ;; increase the counter bellow so next people will give it more confidence.
   ;; Counter = 1
   (message "Setting the font...")
   (unless (spacemacs/set-default-font dotspacemacs-default-font)
     (spacemacs-buffer/warning
      "Cannot find any of the specified fonts (%s)! Font settings may not be correct."
      (if (listp (car dotspacemacs-default-font))
          (mapconcat 'car dotspacemacs-default-font ", ")
        (car dotspacemacs-default-font)))))
  ;; spacemacs init
  (setq inhibit-startup-screen t)
  (spacemacs-buffer/goto-buffer)
  (unless (display-graphic-p)
    ;; explicitly recreate the home buffer for the first GUI client
    ;; in order to correctly display the logo
    (spacemacs|do-after-display-system-init
     (kill-buffer (get-buffer spacemacs-buffer-name))
     (spacemacs-buffer/goto-buffer)))
  ;; This is set to nil during startup to allow Spacemacs to show buffers opened
  ;; as command line arguments.
  (setq initial-buffer-choice nil)
  (setq inhibit-startup-screen t)
  (require 'core-keybindings)
  ;; for convenience and user support
  (unless (fboundp 'tool-bar-mode)
    (spacemacs-buffer/message (concat "No graphical support detected, "
                                      "you won't be able to launch a "
                                      "graphical instance of Emacs"
                                      "with this build.")))
  ;; check for new version
  (if dotspacemacs-mode-line-unicode-symbols
      (setq-default spacemacs-version-check-lighter "[⇪]")))

(defun spacemacs//removes-gui-elements ()
  "Remove the menu bar, tool bar and scroll bars."
  ;; removes the GUI elements
  (unless (spacemacs/window-system-is-mac)
    (when (and (fboundp 'menu-bar-mode) (not (eq menu-bar-mode -1)))
      (menu-bar-mode -1)))
  (when (and (fboundp 'scroll-bar-mode) (not (eq scroll-bar-mode -1)))
    (scroll-bar-mode -1))
  (when (and (fboundp 'tool-bar-mode) (not (eq tool-bar-mode -1)))
    (tool-bar-mode -1))
  ;; tooltips in echo-aera
  (when (and (fboundp 'tooltip-mode) (not (eq tooltip-mode -1)))
    (tooltip-mode -1)))

(defun spacemacs/maybe-install-dotfile ()
  "Install the dotfile if it does not exist."
  (unless (file-exists-p dotspacemacs-filepath)
    (spacemacs-buffer/set-mode-line "Dotfile wizard installer")
    (spacemacs//redisplay)
    (when (dotspacemacs/install 'with-wizard)
      (configuration-layer/sync))))

(defun spacemacs/display-and-copy-version ()
  "Echo the current spacemacs version and copy it."
  (interactive)
  (let ((msg (format "Spacemacs v.%s" spacemacs-version)))
    (message msg) (kill-new msg)))

(defun display-startup-echo-area-message ()
  "Change the default welcome message of minibuffer to another one."
  (message "Spacemacs is ready."))

(defun spacemacs/defer-until-after-user-config (func)
  "Call FUNC if dotspacemacs/user-config has been called. Otherwise,
defer call using `spacemacs-post-user-config-hook'."
  (if spacemacs-post-user-config-hook-run
      (funcall func)
    (add-hook 'spacemacs-post-user-config-hook func)))

(defun spacemacs/setup-startup-hook ()
  "Add post init processing."
  (add-hook
   'emacs-startup-hook
   (lambda ()
     ;; This is set here so that emacsclient will show the startup buffer (and
     ;; so that it can be changed in user-config if necessary). It was set to
     ;; nil earlier in the startup process to properly handle command line
     ;; arguments.
     (setq initial-buffer-choice (lambda () (get-buffer spacemacs-buffer-name)))
     ;; Ultimate configuration decisions are given to the user who can defined
     ;; them in his/her ~/.spacemacs file
     (dotspacemacs|call-func dotspacemacs/user-config
                             "Calling dotfile user config...")
     (run-hooks 'spacemacs-post-user-config-hook)
     (setq spacemacs-post-user-config-hook-run t)
     (when (fboundp dotspacemacs-scratch-mode)
       (with-current-buffer "*scratch*"
         (funcall dotspacemacs-scratch-mode)))
     (configuration-layer/display-summary emacs-start-time)
     (spacemacs/check-for-new-version nil spacemacs-version-check-interval)
     (setq spacemacs-initialized t))))

(defun spacemacs//describe-system-info-string ()
  "Gathers info about your Spacemacs setup and returns it as a string."
  (format
   (concat "#### System Info :computer:\n"
           "- OS: %s\n"
           "- Emacs: %s\n"
           "- Spacemacs: %s\n"
           "- Spacemacs branch: %s (rev. %s)\n"
           "- Graphic display: %s\n"
           "- Distribution: %s\n"
           "- Editing style: %s\n"
           "- Completion: %s\n"
           "- Layers:\n```elisp\n%s```\n"
           (when (version<= "25.1" emacs-version)
             "- System configuration features: %s\n"))
   system-type
   emacs-version
   spacemacs-version
   (spacemacs//git-get-current-branch)
   (spacemacs/git-get-current-branch-rev)
   (display-graphic-p)
   dotspacemacs-distribution
   dotspacemacs-editing-style
   (cond ((configuration-layer/layer-usedp 'helm)
          'helm)
         ((configuration-layer/layer-usedp 'ivy)
          'ivy)
         (t 'helm))
   (pp-to-string dotspacemacs--configuration-layers-saved)
   (bound-and-true-p system-configuration-features)))

(defun spacemacs/describe-system-info ()
  "Gathers info about your Spacemacs setup and copies to clipboard."
  (interactive)
  (let ((sysinfo (spacemacs//describe-system-info-string)))
    (kill-new sysinfo)
    (message sysinfo)
    (message (concat "Information has been copied to clipboard.\n"
                     "You can paste it in the gitter chat.\n"
                     "Check the *Messages* buffer if you need to review it"))))

(defun spacemacs//describe-last-keys-string ()
  "Gathers info about your Emacs last keys and returns it as a string."
  (loop
   for key
   across (recent-keys)
   collect (if (or (integerp key) (symbolp key) (listp key))
               (single-key-description key)
             (prin1-to-string key))
   into keys
   finally (return
            (with-temp-buffer
              (set-fill-column 60)
              (insert (mapconcat 'identity keys " "))
              (fill-region (point-min) (point-max))
              (format "#### Emacs last keys :musical_keyboard: \n```text\n%s\n```\n" (buffer-string))))))

(defun spacemacs/describe-last-keys ()
  "Gathers info about your Emacs last keys and copies to clipboard."
  (interactive)
  (let ((lossage (spacemacs//describe-last-keys-string)))
    (kill-new lossage)
    (message lossage)
    (message (concat "Information has been copied to clipboard.\n"
                     (propertize
                      "PLEASE REVIEW THE DATA BEFORE GOING FURTHER AS IT CAN CONTAIN SENSITIVE DATA (PASSWORD, ...)\n"
                      'face 'font-lock-warning-face)
                     "You can paste it in the gitter chat.\n"
                     "Check the *Messages* buffer if you need to review it"))))

(defun spacemacs/report-issue (arg)
  "Open a spacemacs/report-issue-mode buffer prepopulated with
   issue report template and system information.

   With prefix arg,include the last keys pressed."
  (interactive "P")
  (let ((buf
         (generate-new-buffer "REPORT_SPACEMACS_ISSUE"))
        (system-info
         (spacemacs//describe-system-info-string))
        (backtrace
         (if (get-buffer "*Backtrace*")
             (with-current-buffer "*Backtrace*"
               (buffer-substring-no-properties
                (point-min)
                (min (point-max) 1000)))
           "<<BACKTRACE IF RELEVANT>>"))
        (last-keys
         (if (and arg (y-or-n-p (concat "Do you really want to "
                                        "include your last pressed keys? It "
                                        "may include some sensitive data.")))
             (concat (spacemacs//describe-last-keys-string) "\n")
           "")))
    (switch-to-buffer buf)
    (insert-file-contents-literally
     (concat configuration-layer-template-directory "REPORTING.template"))
    (loop
     for (placeholder replacement)
     in '(("%SYSTEM_INFO%" system-info)
          ("%BACKTRACE%" backtrace)
          ("(%LAST_KEYS%)\n" last-keys))
     do (save-excursion
          (goto-char (point-min))
          (search-forward placeholder)
          (replace-match (symbol-value replacement) [keep-case] [literal])))
    (spacemacs/report-issue-mode)))

(define-derived-mode spacemacs/report-issue-mode markdown-mode "Report-Issue"
  "Major mode for reporting issues with Spacemacs.

When done editing, you can type \\[spacemacs//report-issue-done] to create the
issue on Github. You must be logged in already for this to work. After you see
that the issue has been created successfully, you can close this buffer.

Markdown syntax is supported in this buffer.

\\{spacemacs/report-issue-mode-map}
"
  (font-lock-add-keywords 'spacemacs/report-issue-mode
                          '(("\\(<<.*?>>\\)" . 'font-lock-comment-face))))

(define-key spacemacs/report-issue-mode-map
  (kbd "C-c C-c") 'spacemacs//report-issue-done)
(define-key spacemacs/report-issue-mode-map
  (kbd "C-c C-k") 'kill-buffer)

(with-eval-after-load 'bind-map
  (spacemacs/set-leader-keys-for-major-mode 'spacemacs/report-issue-mode
    "," 'spacemacs//report-issue-done
    "c" 'spacemacs//report-issue-done
    "a" 'kill-buffer
    "k" 'kill-buffer))

(defun spacemacs//report-issue-done ()
  (interactive)
  (let ((url "http://github.com/syl20bnr/spacemacs/issues/new?body="))
    (setq url (url-encode-url (concat url (buffer-string))))
    ;; HACK: Needed because the first `#' is not encoded
    (setq url (replace-regexp-in-string "#" "%23" url))
    (browse-url url)))

(provide 'core-spacemacs)