(setq inhibit-startup-message t)

(menu-bar-mode -1)
(tool-bar-mode -1)
(scroll-bar-mode -1)


(recentf-mode 1)
(savehist-mode 1)  ; remember previous commands in minibuffer
(save-place-mode 1)  ; put cursor in last place when opening a file

;; Avoid customization UI auto-variables in init.el
(setq custom-file (locate-user-emacs-file "custom-vars.el"))
(load custom-file 'noerror 'nomessage)

;; Don't show popup UI when prompting
(setq use-dialog-box nil)

;; Update files when changed on disk
(global-auto-revert-mode 1)

(set-frame-font "DejaVu Sans Mono 14")

;; Initialize Package Sources
(require 'package)

(setq package-archives
      '(("melpa" . "https://melpa.org/packages/")
	("org" . "https://orgmode.org/elpa/")
        ("elpa" . "https://elpa.gnu.org/packages/")))

(package-initialize)
(unless package-archive-contents
  (package-refresh-contents))

;; Initialize use-package on non-linux platforms
(unless (package-installed-p 'use-package)
  (package-install 'use-package))

(require 'use-package)
(setq use-package-always-ensure t)

;; Persist history over Emacs restarts. Vertico sorts by history position.
(use-package savehist
  :init
  (savehist-mode))
;; Enable vertico
(use-package vertico
  :init
  (vertico-mode)

  ;; Different scroll margin
  ;; (setq vertico-scroll-margin 0)

  ;; Show more candidates
  ;; (setq vertico-count 20)

  ;; Grow and shrink the Vertico minibuffer
  ;; (setq vertico-resize t)

  ;; Optionally enable cycling for `vertico-next' and `vertico-previous'.
  ;; (setq vertico-cycle t)
  )

;; A few more useful configurations...
(use-package emacs
  :init
  ;; Add prompt indicator to `completing-read-multiple'.
  ;; We display [CRM<separator>], e.g., [CRM,] if the separator is a comma.
  (defun crm-indicator (args)
    (cons (format "[CRM%s] %s"
                  (replace-regexp-in-string
                   "\\`\\[.*?]\\*\\|\\[.*?]\\*\\'" ""
                   crm-separator)
                  (car args))
          (cdr args)))
  (advice-add #'completing-read-multiple :filter-args #'crm-indicator)

  ;; Do not allow the cursor in the minibuffer prompt
  (setq minibuffer-prompt-properties
        '(read-only t cursor-intangible t face minibuffer-prompt))
  (add-hook 'minibuffer-setup-hook #'cursor-intangible-mode)

  ;; Emacs 28: Hide commands in M-x which do not work in the current mode.
  ;; Vertico commands are hidden in normal buffers.
  ;; (setq read-extended-command-predicate
  ;;       #'command-completion-default-include-p)

  ;; Enable recursive minibuffers
  (setq enable-recursive-minibuffers t))

;; todo: evaluate this
;; Optionally use the `orderless' completion style.
(use-package orderless
  :init
  ;; Configure a custom style dispatcher (see the Consult wiki)
  ;; (setq orderless-style-dispatchers '(+orderless-consult-dispatch orderless-affix-dispatch)
  ;;       orderless-component-separator #'orderless-escapable-split-on-space)
  (setq completion-styles '(orderless basic)
        completion-category-defaults nil
        completion-category-overrides '((file (styles partial-completion)))))

(setq completion-styles '(basic substring partial-completion flex))

;; Enable rich annotations using the Marginalia package
(use-package marginalia
  ;; Bind `marginalia-cycle' locally in the minibuffer.  To make the binding
  ;; available in the *Completions* buffer, add it to the
  ;; `completion-list-mode-map'.
  :bind (:map minibuffer-local-map
         ("M-A" . marginalia-cycle))

  ;; The :init section is always executed.
  :init

  ;; Marginalia must be activated in the :init section of use-package such that
  ;; the mode gets enabled right away. Note that this forces loading the
  ;; package.
  (marginalia-mode))
(custom-set-variables
 ;; custom-set-variables was added by Custom.
 ;; If you edit it by hand, you could mess it up, so be careful.
 ;; Your init file should contain only one such instance.
 ;; If there is more than one, they won't work right.
 '(package-selected-packages '(counsel ivy)))

(use-package simple-modeline
  :hook (after-init . simple-modeline-mode))

(use-package base16-theme)
(load-theme 'base16-oceanicnext t)

(global-display-line-numbers-mode t)
(dolist (mode
	 '(org-mode-hook
	   term-mode-hook
	   eshell-mode-hook))
  (add-hook mode (lambda () (display-line-numbers-mode 0))))
(column-number-mode)

(use-package rainbow-delimiters
  :hook (prog-mode . rainbow-delimiters-mode))

(use-package which-key
  :init (which-key-mode)
  :diminish which-key-mode
  :config(setq which-key-idle-delay 0.3))

(use-package helpful)
;; Note that the built-in `describe-function' includes both functions
;; and macros. `helpful-function' is functions only, so we provide
;; `helpful-callable' as a drop-in replacement.
(global-set-key (kbd "C-h f") #'helpful-callable)

(global-set-key (kbd "C-h v") #'helpful-variable)
(global-set-key (kbd "C-h k") #'helpful-key)
(global-set-key (kbd "C-h x") #'helpful-command)

;; Lookup the current symbol at point. C-c C-d is a common keybinding
;; for this in lisp modes.
(global-set-key (kbd "C-c C-d") #'helpful-at-point)

;; Look up *F*unctions (excludes macros).
;;
;; By default, C-h F is bound to `Info-goto-emacs-command-node'. Helpful
;; already links to the manual, if a function is referenced there.
(global-set-key (kbd "C-h F") #'helpful-function)

(defconst IS-MAC (eq system-type 'darwin))

(when IS-MAC
  ;; mac specific settings
  )

;; General Emacs keybindings
(which-key-add-key-based-replacements
  "C-x" "Ctrl-X-prefix"
  "C-c" "Ctrl-C-prefix"
  "C-h" "Help"
  "M-x" "M-x-commands"
  "C-x r" "Rectangles/Registers"
  "C-x 4" "Other-window"
  "C-x 5" "Frames"
  "C-x 8" "Unicode"
  "C-x @" "Event-modifiers"
  "C-x a" "Abbreviations"
  "C-x n" "Narrowing"
  "C-x g" "Magit-status"
  "C-c M-g" "Magit-file-dispatch"
  "C-x v" "Version-Control"
  "C-x X" "Font/Encoding"
  "C-x p" "Project/Buffer"
  "C-x t" "Tabs/Terminal"
  "C-x w" "Windows/Workspaces"
  "C-x x" "Text/Rectangle"
  "C-x C-a" "Emacs-Lisp-Debug"
  "C-x RET" "Coding-system")

;; Emacs major modes and related prefixes
(which-key-add-key-based-replacements
  "C-c m" "Major-mode-cmds"
  "C-c p" "Projectile"
  "C-c g" "Magit"
  "C-c l" "Lisp"
  "C-c @" "HS-minor-mode"
  "C-c t" "Toggle"
  "C-c /" "Comment")

;; Org mode specific bindings
(which-key-add-key-based-replacements
  "C-c C-x" "Org-mode-C-c-C-x"
  "C-c C-w" "Org-refile"
  "C-c [" "Org-agenda")


(defun split-and-follow-horizontally ()
  (interactive)
  (split-window-below)
  (balance-windows)
  (other-window 1))

(defun split-and-follow-vertically ()
  (interactive)
  (split-window-right)
  (balance-windows)
  (other-window 1))

(global-set-key (kbd "s-c") 'delete-window)
(global-set-key (kbd "s-h") 'windmove-left)
(global-set-key (kbd "s-j") 'windmove-down)
(global-set-key (kbd "s-k") 'windmove-up)
(global-set-key (kbd "s-l") 'windmove-right)
; (define-key evil-normal-state-map (kbd "s-d") 'kill-this-buffer)
; (define-key evil-normal-state-map (kbd "s-n") 'projectile-next-project-buffer)
; (define-key evil-normal-state-map (kbd "s-p") 'projectile-previous-project-buffer)
; (define-key evil-normal-state-map (kbd "s-J") 'split-and-follow-horizontally)
; (define-key evil-normal-state-map (kbd "s-L") 'split-and-follow-vertically)
; (define-key evil-normal-state-map (kbd "s-b") 'buffer-menu)
; (define-key evil-normal-state-map (kbd "s-x") 'execute-extended-command)
(global-set-key (kbd "s-SPC") 'tab-next)

(use-package magit)
(use-package treemacs)
(use-package org)
(use-package projectile)

(use-package lsp-mode
  :commands (lsp lsp-deferred)
  :init
  (setq lsp-keymap-prefix "C-c l")
  :config
  (lsp-enable-which-key-integration t))

(use-package lsp-ui)
(use-package lsp-treemacs)
;; todo

;; projectile
;; deft
;; roam
;; ivy + fuzzzy +prescient?
;; ivy-lsp
;; hl-todo
;; gitgutter
;; perspective
;; workspaces?
;; paredit
;; lispy
;; persistent undo
;; org : roam2, hugo, pretty, dragndrop, bullet
;; dap-mode
;; dabbrev-expand or company on c-n c-p
;; c-N c-P for expand full line
;; yasnippet
;; tramp
;; flesh out treemacs


;; (setq deft-directory "~/notes/deft"
;;      deft-extensions '("org" "txt")
;;      deft-recursive t)

;; (setq org-roam-directory "~/notes/roam")

(setq projectile-project-search-path '("~/code/"))

;; (setq company-minimum-prefix-length 100)
;; (map! :i "S-o" #'company-complete)



(setq tab-always-indent 'complete)
(setq tab-first-completion 'word)

(use-package company
    :ensure t
    :hook (prog-mode . company-mode)
    :diminish
    :bind (:map company-active-map
		("<tab>" . company-select-next)
		("TAB" . company-select-next)
		("<backtab>" . company-select-previous)
		("<S-tab>" . company-select-previous))
    (:map lsp-mode-map  ; more general mode than this?
	  ("<tab>" . company-indent-or-complete-common))
    :config
    (global-company-mode 1)
    :init
    (setq company-idle-delay nil))

(use-package rust-mode
  :ensure t
  :mode "\\.rs\\'"
  :config
  (setq rust-format-on-save t)) ; Automatically format rust files on save

(use-package cargo
  :ensure t
  :hook (rust-mode . cargo-minor-mode))

(use-package eshell)
(use-package vterm)
(use-package treemacs-projectile)
;(use-package treemacs-nerd-icons
;    :config
;  (treemacs-load-theme "nerd-icons"))

(setq ring-bell-function 'ignore)
(setq dired-listing-switches "-al")

(setq backup-directory-alist `(("." . "~/.config/emacs/backups/")))
(setq auto-save-file-name-transforms
      `((".*" "~/.config/emacs/autosaves/" t)))

(setq dired-dwim-target t) ; opening 'other window' on a subdir enters 2 window dired mode for copy/paste
(use-package dired-single)

(defun my-dired-init ()
  "Bunch of stuff to run for dired, either immediately or when it's
   loaded."
  ;; <add other stuff here>
  (define-key dired-mode-map [remap dired-find-file]
    'dired-single-buffer)
  (define-key dired-mode-map [remap dired-mouse-find-file-other-window]
    'dired-single-buffer-mouse)
  (define-key dired-mode-map [remap dired-up-directory]
    'dired-single-up-directory))

;; if dired's already loaded, then the keymap will be bound
(if (boundp 'dired-mode-map)
    ;; we're good to go; just add our bindings
    (my-dired-init)
  ;; it's not loaded yet, so add our bindings to the load-hook
    (add-hook 'dired-load-hook 'my-dired-init))

(use-package dired-open
    :config
  (setq dired-open-extensions '(("png" . "sxiv")
				("mkv" . "mpv")
				("avi" . "mpv"))))

(use-package all-the-icons-dired
    :hook (dired-mode . all-the-icons-dired-mode))

(use-package treemacs-all-the-icons)