;;; core.el --- The heart of the beast

;;; Naming conventions:
;;
;;   doom-...   public variables or functions (non-interactive)
;;   doom--...  private anything (non-interactive), not safe for direct use
;;   doom/...   an interactive function
;;   doom:...   an evil operator, motion or command
;;   doom|...   hook function
;;   doom*...   advising functions
;;   doom!...   interaction commands exclusively for installing external dependencies
;;   ...!       a macro or function that configures DOOM
;;   %...       functions used for in-snippet logic
;;   +...       Any of the above, but part of a module, e.g. +emacs-lisp|init-hook
;;
;; Autoloaded functions are in core/autoload/*.el and modules/*/*/autoload.el or
;; modules/*/*/autoload/*.el.

(defvar doom-version "2.0.0"
  "Current version of DOOM emacs.")

(defvar doom-debug-mode (or (getenv "DEBUG") init-file-debug)
  "If non-nil, all doom functions will be verbose. Set DEBUG=1 in the command
line or use --debug-init to enable this.")

(defvar doom-emacs-dir user-emacs-directory
  "The path to this emacs.d directory.")

(defvar doom-core-dir (concat doom-emacs-dir "core/")
  "Where essential files are stored.")

(defvar doom-modules-dir (concat doom-emacs-dir "modules/")
  "Where configuration modules are stored.")


;; Multi-host directories: I namespace `doom-etc-dir' and `doom-cache-dir' with
;; host names because I use the same (often symlinked) emacs.d across several
;; computers -- often simultaneously. Cache or other temporary files would
;; conflict otherwise.

(defvar doom-local-dir (concat doom-emacs-dir ".local/")
  "Root directory for local Emacs files.")

(defvar doom-packages-dir (concat doom-local-dir "packages/")
  "Where package.el and quelpa plugins (and their caches) are kept.")

(defvar doom-etc-dir
  (concat doom-local-dir "etc/" (system-name) "/")
  "Hostname-based directory for non-volatile temporary files. These are not
deleted or tampored with by DOOM functions. It should not be used for transient
or unstable files.")

(defvar doom-cache-dir
  (concat doom-local-dir "cache/" (system-name) "/")
  "Hostname-based directory for volatile temporary files. They are deleted when
`doom/clean-cache' is called. For more stable local storage, use
`doom-local-dir'.")

(defvar doom-autoload-file
  (concat doom-local-dir "autoloads.el")
  "Location of the autoloads file generated by `doom/reload-autoloads'.")

(defgroup doom nil
  ""
  :group 'emacs)


;;;
;; UTF-8 as the default coding system
(set-charset-priority 'unicode)        ; pretty
(prefer-coding-system        'utf-8)   ; pretty
(set-terminal-coding-system  'utf-8)   ; pretty
(set-keyboard-coding-system  'utf-8)   ; pretty
(set-selection-coding-system 'utf-8)   ; perdy
(setq locale-coding-system   'utf-8)   ; please
(setq-default buffer-file-coding-system 'utf-8) ; with sugar on top

;; Configuration
(setq-default
 ad-redefinition-action 'accept   ; silence advised function warnings
 apropos-do-all t                 ; make `apropos' more useful
 compilation-always-kill t        ; kill compilation process before starting another
 compilation-ask-about-save nil   ; save all buffers on `compile'
 compilation-scroll-output t
 confirm-nonexistent-file-or-buffer t
 custom-file (concat doom-etc-dir "custom.el")
 enable-recursive-minibuffers nil
 debug-on-error (and (not noninteractive) doom-debug-mode)
 idle-update-delay 2              ; update ui less often
 url-configuration-directory (concat doom-cache-dir "url/")
 ;; keep the point out of the minibuffer
 minibuffer-prompt-properties '(read-only t point-entered minibuffer-avoid-prompt face minibuffer-prompt)
 ;; History & backup settings
 auto-save-default nil
 auto-save-list-file-name (concat doom-cache-dir "autosave")
 backup-directory-alist (list (cons ".*" (concat doom-cache-dir "backup/")))
 create-lockfiles nil
 history-length 1000
 make-backup-files nil
 vc-make-backup-files nil
 tramp-auto-save-directory (concat doom-cache-dir "tramp/")
 tramp-backup-directory-alist backup-directory-alist
 ;; in case of `persistent-soft'
 pcache-directory (concat doom-cache-dir "pcache/"))

;; be quiet at startup
(advice-add 'display-startup-echo-area-message :override 'ignore)
(setq inhibit-startup-message t
      inhibit-startup-echo-area-message user-login-name
      initial-major-mode 'fundamental-mode
      initial-scratch-message nil)


;;;
;; Automatic minor modes
(defvar doom-auto-minor-mode-alist '()
  "Alist mapping filename patterns to corresponding minor mode functions, like
`auto-mode-alist'. All elements of this alist are checked, meaning you can
enable multiple minor modes for the same regexp.")

(defun doom|enable-minor-mode-maybe ()
  "Check file name against `doom-auto-minor-mode-alist'."
  (when buffer-file-name
    (let ((name buffer-file-name)
          (remote-id (file-remote-p buffer-file-name))
          (alist doom-auto-minor-mode-alist))
      ;; Remove backup-suffixes from file name.
      (setq name (file-name-sans-versions name))
      ;; Remove remote file name identification.
      (when (and (stringp remote-id)
                 (string-match-p (regexp-quote remote-id) name))
        (setq name (substring name (match-end 0))))
      (while (and alist (caar alist) (cdar alist))
        (if (string-match (caar alist) name)
            (funcall (cdar alist) 1))
        (setq alist (cdr alist))))))

(add-hook 'find-file-hook 'doom|enable-minor-mode-maybe)


;;;
;; Bootstrap
(setq gc-cons-threshold 402653184
      gc-cons-percentage 0.6)

(let (file-name-handler-list)
  (eval-and-compile
    (require 'core-packages (concat doom-core-dir "core-packages")))
  (eval-when-compile
    (doom-initialize))
  (setq load-path (eval-when-compile load-path))

  ;;; Let 'er rip
  (require 'core-lib)
  (require 'core-os) ; consistent behavior across Oses
  (with-demoted-errors "AUTOLOAD ERROR: %s"
    (require 'autoloads doom-autoload-file t))

  (unless noninteractive
    (require 'core-ui)          ; draw me like one of your French editors
    (require 'core-popups)      ; taming sudden yet inevitable windows
    (require 'core-editor)      ; baseline configuration for text editing
    (require 'core-projects)    ; making Emacs project-aware
    (require 'core-keybinds)))  ; centralized keybind system + which-key

(add-hook! 'window-setup-hook
  (setq gc-cons-threshold 134217728
        gc-cons-percentage 0.3))

(provide 'core)
;;; core.el ends here