;; -*- coding: utf-8 -*-

(setq use-package-always-ensure t)

;;; For performance
(setq gc-cons-threshold 100000000)
(setq read-process-output-max (* 1024 1024)) ;; 1mb

(add-hook 'after-init-hook #'(lambda ()
                               ;; restore after startup
                               (setq gc-cons-threshold 800000)))

;;; Disable menu-bar, tool-bar, and scroll-bar.
(if (fboundp 'menu-bar-mode)
    (menu-bar-mode -1))
(if (fboundp 'tool-bar-mode)
    (tool-bar-mode -1))
(if (fboundp 'scroll-bar-mode)
    (scroll-bar-mode -1))

;;; Fix this bug:
;;; https://www.reddit.com/r/emacs/comments/cueoug/the_failed_to_download_gnu_archive_is_a_pretty/
(when (version< emacs-version "26.3")
  (setq gnutls-algorithm-priority "NORMAL:-VERS-TLS1.3"))

(setq inhibit-startup-screen t)           ; Disable startup screen
(setq initial-scratch-message "")         ; Make *scratch* buffer blank
(setq-default frame-title-format '("%b")) ; Make window title the buffer name
(setq ring-bell-function 'ignore)         ; Disable bell sound
(fset 'yes-or-no-p 'y-or-n-p)             ; y-or-n-p makes answering questions faster
(show-paren-mode 1)                       ; Show closing parens by default
(setq linum-format "%4d ")                ; Line number format
(delete-selection-mode 1)                 ; Selected text will be overwritten when you start typing
(global-auto-revert-mode t)               ; Auto-update buffer if file has changed on disk

;; Show line numbers in programming modes
(add-hook 'prog-mode-hook
          (if (or
			   ; If linum-mode doesn't exist...
			   (not (fboundp 'linum-mode))
			   ; ...or Emacs has display-line-numbers-mode capability
			   (and (fboundp 'display-line-numbers-mode) (display-graphic-p)))
			  ; ...then use display-line-numbers-mode!
              'display-line-numbers-mode
			; Otherwise, use linum-mode
            'linum-mode))

(global-display-line-numbers-mode)

;; Define the whitespace style.
(setq-default whitespace-style
              '(face spaces tabs newline space-mark tab-mark newline-mark))

(setq-default whitespace-display-mappings
              ;; all numbers are unicode codepoint in decimal
              '(
                ;; 32 is SPACE, 183 is MIDDLE DOT ·
                (space-mark 32 [183])
                ;; 10 is LINE FEED, 182 isPILCROW SIGN ¶
                (newline-mark 10 [182 10])
                ;; 9 is tab, 182 isPILCROW SIGN ¶
                (tab-mark 9 [9655 9])))

;; Set whitespace actions.
(setq-default whitespace-action
              '(cleanup auto-cleanup))

;;; Put Emacs auto-save and backup files to /tmp/ or C:/Temp/
(defconst emacs-tmp-dir (expand-file-name (format "emacs%d" (user-uid)) temporary-file-directory))
(setq
   backup-by-copying t                                        ; Avoid symlinks
   delete-old-versions t
   kept-new-versions 6
   kept-old-versions 2
   version-control t
   auto-save-list-file-prefix emacs-tmp-dir
   auto-save-file-name-transforms `((".*" ,emacs-tmp-dir t))  ; Change autosave dir to tmp
   backup-directory-alist `((".*" . ,emacs-tmp-dir)))

;;; Lockfiles unfortunately cause more pain than benefit
(setq create-lockfiles nil)

;;; Load wheatgrass as the default theme if one is not loaded already

(if (not custom-enabled-themes)
    (load-theme 'wheatgrass t))

(defun reload-config ()
  (interactive)
  (load-file (expand-file-name "init.el" user-emacs-directory)))

;; Make a single ESC quit the current action
(global-set-key (kbd "<escape>") 'keyboard-escape-quit)

;; Autopairs
(add-hook 'prog-mode-hook
	  (lambda ()
	    (electric-pair-mode 1)))

;; Org mode config
(setq-default org-startup-indented t)

;; Emacs lisp mode config
(add-hook 'emacs-lisp-mode-hook
	  (lambda ()
	    ;; Use spaces, not tabs
	    (setq indent-tabs-mode nil)))

;; Theme
(use-package doom-themes
  :config
  (setq doom-themes-enable-bold t
        doom-themes-enable-italic t)
  (load-theme 'doom-moonlight t)

  ;; Enable flashing mode-line on errors
  (doom-themes-visual-bell-config)
  ;; Corrects (and improves) org-mode's native fontification.
  (doom-themes-org-config))

;; Some quality of life packages
(use-package which-key
  :config
  (which-key-mode))

(use-package helm
  ;; :bind ("C-c C-p" . helm-find-files)
  :config
  ;; Enable global fuzzy matching
  (setq helm-mode-fuzzy-match t
        helm-completion-in-region-fuzzy-match t)
  (helm-mode 1))

(use-package corfu
  :custom
  (corfu-cycle t)
  (corfu-auto t)   ;; Enable auto-completion
  
  :init
  (global-corfu-mode))

(use-package emacs
  :custom
  
  ;; Enable indentation+completion using the TAB key.
  ;; `completion-at-point' is often bound to M-TAB.
  (tab-always-indent 'complete)

  ;; Emacs 30 and newer: Disable Ispell completion function. As an alternative,
  ;; try `cape-dict'.
  (text-mode-ispell-word-completion nil)

  ;; Emacs 28 and newer: Hide commands in M-x which do not apply to the current
  ;; mode.  Corfu commands are hidden, since they are not used via M-x. This
  ;; setting is useful beyond Corfu.
  (read-extended-command-predicate #'command-completion-default-include-p))

(use-package paredit
  :hook ((emacs-lisp-mode . enable-paredit-mode)
         (lisp-mode . enable-paredit-mode)
         (lisp-interaction-mode . enable-paredit-mode)
         (ielm-mode . enable-paredit-mode)))

(use-package nix-mode
  :mode "\\.nix\\'")

(use-package evil
  :config
  (evil-mode 1))