;;; post-init.el --- Post Initalization -*- no-byte-compile: t; lexical-binding: t; -*-

;; Auto-revert in Emacs is a feature that automatically updates the
;; contents of a buffer to reflect changes made to the underlying file
;; on disk.
(add-hook 'elpaca-after-init-hook #'global-auto-revert-mode)

;; recentf is an Emacs package that maintains a list of recently
;; accessed files, making it easier to reopen files you have worked on
;; recently.
(add-hook 'elpaca-after-init-hook #'(lambda()
                                      (let ((inhibit-message t))
                                        (recentf-mode 1))))
(add-hook 'kill-emacs-hook #'recentf-cleanup)

;; savehist is an Emacs feature that preserves the minibuffer history between
;; sessions. It saves the history of inputs in the minibuffer, such as commands,
;; search strings, and other prompts, to a file. This allows users to retain
;; their minibuffer history across Emacs restarts.
(add-hook 'elpaca-after-init-hook #'savehist-mode)

;; save-place-mode enables Emacs to remember the last location within a file
;; upon reopening. This feature is particularly beneficial for resuming work at
;; the precise point where you previously left off.
(add-hook 'elpaca-after-init-hook #'save-place-mode)

(use-package emacs
  :elpaca nil
  :ensure nil
  :custom
  (delete-selection-mode t)   ;; Select text and delete it by typing.
  (electric-indent-mode nil)  ;; Turn off the weird indenting that Emacs does by default.
  (electric-pair-mode t)      ;; Turns on automatic parens pairing

  (blink-cursor-mode nil)     ;; Don't blink cursor
  (global-auto-revert-mode t) ;; Automatically reload file and show changes if the file has changed
  (indent-tabs-mode nil)

  ;;(dired-kill-when-opening-new-dired-buffer t) ;; Dired don't create new buffer
  (recentf-mode t) ;; Enable recent file mode
  (recentf-max-saved-items 50)

  ;;(global-visual-line-mode t)           ;; Enable truncated lines
  ;;(display-line-numbers-type 'relative) ;; Relative line numbers
  (global-display-line-numbers-mode t)  ;; Display line numbers
  (split-width-threshold nil) ;; Splitting behavior
  :bind (([escape] . keyboard-escape-quit)
         ("C-x c" . compile)))

;; =========================
;; Theme
;; =========================

(use-package naysayer-theme
  :ensure nil
  ;; :defer t
  ;; :elpaca nil
  :config
  (load-theme 'naysayer t)
  :load-path rs/lib-dir)

(global-font-lock-mode 1)
(set-cursor-color "lightgreen")
(set-background-color "#072626")
;; (global-set-key [C-return] 'save-buffer)

;(set-face-attribute 'default nil :font "Anonymous Pro-14")
;; (set-face-attribute 'default nil :font "Consolas-174")

(set-face-foreground 'font-lock-builtin-face         "lightgreen")

;; =========================
;; Better UX
;; =========================

(use-package vertico
  ;; (Note: It is recommended to also enable the savehist package.)
  :ensure t
  :defer t
  :commands (vertico-mode vertico-multiform-mode)
  :custom
  (vertico-cycle t)
  (vertico-multiform-commands
   '((consult-imenu buffer indexed)
     (find-file flat (vertico-cycle . t))
     (execute-extended-command flat (vertico-cycle . t))))
  (vertico-multiform-categories
   '((consult-grep buffer)))
  :hook
  (elpaca-after-init . vertico-mode)
  (elpaca-after-init . vertico-multiform-mode))

(use-package orderless
  ;; Vertico leverages Orderless' flexible matching capabilities, allowing users
  ;; to input multiple patterns separated by spaces, which Orderless then
  ;; matches in any order against the candidates.
  :ensure t
  :custom
  (completion-styles '(orderless basic))
  (completion-category-defaults nil)
  (completion-category-overrides '((file (styles partial-completion)))))

(use-package marginalia
  ;; Marginalia allows Embark to offer you preconfigured actions in more contexts.
  ;; In addition to that, Marginalia also enhances Vertico by adding rich
  ;; annotations to the completion candidates displayed in Vertico's interface.
  :ensure t
  :defer t
  :commands (marginalia-mode marginalia-cycle)
  :hook (elpaca-after-init . marginalia-mode))

(use-package embark
  ;; Embark is an Emacs package that acts like a context menu, allowing
  ;; users to perform context-sensitive actions on selected items
  ;; directly from the completion interface.
  :ensure t
  :defer t
  :commands (embark-act
             embark-dwim
             embark-export
             embark-collect
             embark-bindings
             embark-prefix-help-command)
  :bind
  (("C-." . embark-act)         ;; pick some comfortable binding
   ("C-;" . embark-dwim)        ;; good alternative: M-.
   ("C-h B" . embark-bindings)) ;; alternative for `describe-bindings'

  :init
  (setq prefix-help-command #'embark-prefix-help-command)

  :config
  ;; Hide the mode line of the Embark live/completions buffers
  (add-to-list 'display-buffer-alist
               '("\\`\\*Embark Collect \\(Live\\|Completions\\)\\*"
                 nil
                 (window-parameters (mode-line-format . none)))))

(use-package embark-consult
  :ensure t
  :hook
  (embark-collect-mode . consult-preview-at-point-mode))

(use-package consult
  :ensure t
  :bind (;; C-c bindings in `mode-specific-map'
         ("C-c M-x" . consult-mode-command)
         ("C-c h" . consult-history)
         ("C-c k" . consult-kmacro)
         ("C-c m" . consult-man)
         ("C-c i" . consult-info)
         ([remap Info-search] . consult-info)
         ;; C-x bindings in `ctl-x-map'
         ("C-x M-:" . consult-complex-command)
         ("C-x b" . consult-buffer)
         ("C-x 4 b" . consult-buffer-other-window)
         ("C-x 5 b" . consult-buffer-other-frame)
         ("C-x t b" . consult-buffer-other-tab)
         ("C-x r b" . consult-bookmark)
         ("C-x p b" . consult-project-buffer)
         ;; Custom M-# bindings for fast register access
         ("M-#" . consult-register-load)
         ("M-'" . consult-register-store)
         ("C-M-#" . consult-register)
         ;; Other custom bindings
         ("M-y" . consult-yank-pop)
         ;; M-g bindings in `goto-map'
         ("M-g e" . consult-compile-error)
         ("M-g f" . consult-flymake)
         ("M-g g" . consult-goto-line)
         ("M-g M-g" . consult-goto-line)
         ("M-g o" . consult-outline)
         ("M-g m" . consult-mark)
         ("M-g k" . consult-global-mark)
         ("M-g i" . consult-imenu)
         ("M-g I" . consult-imenu-multi)
         ;; M-s bindings in `search-map'
         ("M-s d" . consult-find)
         ("M-s c" . consult-locate)
         ("M-s g" . consult-grep)
         ("M-s G" . consult-git-grep)
         ("M-s r" . consult-ripgrep)
         ("M-s l" . consult-line)
         ("M-s L" . consult-line-multi)
         ("M-s k" . consult-keep-lines)
         ("M-s u" . consult-focus-lines)
         ;; Isearch integration
         ("M-s e" . consult-isearch-history)
         :map isearch-mode-map
         ("M-e" . consult-isearch-history)
         ("M-s e" . consult-isearch-history)
         ("M-s l" . consult-line)
         ("M-s L" . consult-line-multi)
         ;; Minibuffer history
         :map minibuffer-local-map
         ("M-s" . consult-history)
         ("M-r" . consult-history))

  ;; Enable automatic preview at point in the *Completions* buffer.
  :hook (completion-list-mode . consult-preview-at-point-mode)

  :init
  ;; Optionally configure the register formatting. This improves the register
  (setq register-preview-delay 0.5
        register-preview-function #'consult-register-format)

  ;; Optionally tweak the register preview window.
  (advice-add #'register-preview :override #'consult-register-window)

  ;; Use Consult to select xref locations with preview
  (setq xref-show-xrefs-function #'consult-xref
        xref-show-definitions-function #'consult-xref)

  :config
  (consult-customize
   consult-theme :preview-key '(:debounce 0.2 any)
   consult-ripgrep consult-git-grep consult-grep
   consult-bookmark consult-recent-file consult-xref
   consult--source-bookmark consult--source-file-register
   consult--source-recent-file consult--source-project-recent-file
   ;; :preview-key "M-."
   :preview-key '(:debounce 0.4 any))
  (setq consult-narrow-key "<"))

;; Outline Indent
(use-package outline-indent
  :ensure t
  :defer t
  :commands outline-indent-minor-mode

  :init
  ;; The minor mode can also be automatically activated for a certain modes.
  ;; For example for Python and YAML:
  (add-hook 'python-mode-hook #'outline-indent-minor-mode)
  (add-hook 'python-ts-mode-hook #'outline-indent-minor-mode)

  (add-hook 'yaml-mode-hook #'outline-indent-minor-mode)
  (add-hook 'yaml-ts-mode-hook #'outline-indent-minor-mode)

  :custom
  (outline-indent-ellipsis " ▼ "))

;; Dired

(defun rs/dired-copy-path-at-point ()
  (interactive)
  (dired-copy-filename-as-kill 0))

(use-package dired
  :ensure nil
  :bind (("C-x -" . dired-jump)
         ("C-x e" . dired-jump)
         (:map dired-mode-map
               ("-" . dired-up-directory)
               ("W" . rs/dired-copy-path-at-point)))
  :custom
  (dired-deletion-confirmer #'y-or-n-p)
  (dired-dwim-target t)
  ;; (dired-listing-switches "-Alh")
  (dired-listing-switches "-AlhcF --group-directories-first")
  (dired-auto-revert-buffer t))

(use-package dired-x
  :after dired
  :ensure nil)

;; Dired buffers: Automatically hide file details (permissions, size,
;; modification date, etc.) and all the files in the `dired-omit-files' regular
;; expression for a cleaner display.
(add-hook 'dired-mode-hook #'dired-hide-details-mode)

;; Hide files from dired
(setq dired-omit-files (concat "\\`[.]\\'"
                               "\\|\\(?:\\.js\\)?\\.meta\\'"
                               "\\|\\.\\(?:elc|a\\|o\\|pyc\\|pyo\\|swp\\|class\\)\\'"
                               "\\|^\\.DS_Store\\'"
                               "\\|^\\.\\(?:svn\\|git\\)\\'"
                               "\\|^\\.ccls-cache\\'"
                               "\\|^__pycache__\\'"
                               "\\|^\\.project\\(?:ile\\)?\\'"
                               "\\|^flycheck_.*"
                               "\\|^flymake_.*"))
(add-hook 'dired-mode-hook #'dired-omit-mode)

;; Undo Tree
(use-package undo-tree
  :ensure t
  :defer t
  ;; :demand t
  :diminish
  :bind (("C-M-u" . undo-tree-visualize)
         ("M-_" . undo-tree-redo)
         ("M--" . go-back-to-last-edit)
         :map undo-tree-map
         (("C-x u" . nil)))
  :custom
  (undo-tree-visualizer-diff t)
  (undo-tree-enable-undo-in-region t)
  ;; (undo-tree-auto-save-history nil)
  (undo-tree-history-directory-alist `((".*" . ,(expand-file-name "undo" rs/emacs-dir))))
  ;; (setq undo-tree-visualizer-relative-timestamps nil)
  ;; (setq undo-tree-visualizer-timestamps t)
  :config
  (defun go-back-to-last-edit ()
    "Jump back to the last change in the current buffer."
    (interactive)
    (ignore-errors
      (let ((inhibit-message t))
        (undo-tree-undo)
        (undo-tree-redo))))

  (defun undo-tree-split-side-by-side (original-function &rest args)
    "Split undo-tree side-by-side"
    (let ((split-height-threshold nil)
          (split-width-threshold 0))
      (apply original-function args)))

  (advice-add 'undo-tree-visualize :around #'undo-tree-split-side-by-side)
  :hook
  (elpaca-after-init . global-undo-tree-mode))

(use-package multiple-cursors
  :bind (("C-S-c C-S-c" . mc/edit-lines)
         ("C-M-SPC" . set-rectangular-region-anchor)
         ("C->" . mc/mark-next-like-this)
         ("C-<" . mc/mark-previous-like-this)
         ("C-c C-<" . mc/mark-all-like-this)
         ("C-\"" . mc/skip-to-next-like-this)
         ("C-:" . mc/skip-to-previous-like-this)))

(use-package move-text
  :bind (("M-p" . move-text-up)
         ("M-n" . move-text-down)))

;; =========================
;; Magit
;; =========================

(use-package magit
  :commands magit-status
  :bind ("C-x g" . magit))

;; =========================
;; Programming Languages
;; =========================

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

(use-package python-mode
  :mode ("\\.py\\'" . python-mode))

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

(use-package markdown-mode
  :mode ("\\.md\\'" . markdown-mode))

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

(use-package yaml-mode
  :mode (("\\.yml\\'" . yaml-mode)
         ("\\.yaml\\'" . yaml-mode)))

(use-package yasnippet
  :commands (yas-minor-modeb yas-reload-all)
  :config
  (yas-reload-all)
  :hook 
  ;; (elpaca-after-init . yas-reload-all)
  (prog-mode . yas-minor-mode))

(use-package yasnippet-snippets
  :after yasnippet)

(use-package clipetty
  :hook (elpaca-after-init . global-clipetty-mode))

;; =========================
;; Miscellaneous
;; =========================

(global-unset-key (kbd "C-M-_")) ;; unbind redo-undo

(use-package diminish)

(use-package rainbow-mode
  :commands (rainbow-mode))

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

(use-package term-keys
  :ensure (:host github :repo "CyberShadow/term-keys")
  :config (unless (display-graphic-p) (term-keys-mode t)))

(use-package windmove
  :elpaca nil
  :bind (("C-c <left>" . windmove-left)
         ("C-c <right>" . windmove-right)
         ("C-c <up>" . windmove-up)
         ("C-c <down>" . windmove-down)))

(use-package ace-window
  :defer t
  :commands (ace-window)
  :bind ("C-x C-o" . ace-window))

;; (use-package compat)
(use-package transient)

(use-package compile-angel
  :diminish
  :ensure t
  :demand t
  :config
  ;; Set `compile-angel-verbose` to nil to suppress output from compile-angel.
  ;; Drawback: The minibuffer will not display compile-angel's actions.
  (setq compile-angel-verbose nil)
  (compile-angel-on-load-mode)
  (add-hook 'emacs-lisp-mode-hook #'compile-angel-on-save-local-mode))

(use-package which-key
  ;; :elpaca nil
  :defer t
  :commands which-key-mode
  :hook (elpaca-after-init . which-key-mode)
  :custom
  (which-key-idle-delay 1.5)
  (which-key-idle-secondary-delay 0.25)
  (which-key-add-column-padding 1)
  (which-key-max-description-length 40))

(unless (and (eq window-system 'mac)
             (bound-and-true-p mac-carbon-version-string))
  ;; Enables `pixel-scroll-precision-mode' on all operating systems and Emacs
  ;; versions, except for emacs-mac.
  ;;
  ;; Enabling `pixel-scroll-precision-mode' is unnecessary with emacs-mac, as
  ;; this version of Emacs natively supports smooth scrolling.
  ;; https://bitbucket.org/mituharu/emacs-mac/commits/65c6c96f27afa446df6f9d8eff63f9cc012cc738
  (setq pixel-scroll-precision-use-momentum nil) ; Precise/smoother scrolling
  (pixel-scroll-precision-mode 1))

(unless (display-graphic-p)
  (xterm-mouse-mode 1)
  (global-set-key (kbd "<mouse-4>") 'scroll-down-line)
  (global-set-key (kbd "<mouse-5>") 'scroll-up-line))

;; Display the time in the modeline
(display-time-mode 1)

;; Paren match highlighting
(show-paren-mode 1)

;; Track changes in the window configuration, allowing undoing actions such as
;; closing windows.
(winner-mode 1)

;; Replace selected text with typed text
(delete-selection-mode 1)

;; Configure Emacs to ask for confirmation before exiting
(setq confirm-kill-emacs 'y-or-n-p)

(use-package uniquify
  :ensure nil
  :custom
  (uniquify-buffer-name-style 'reverse)
  (uniquify-separator "•")
  (uniquify-after-kill-buffer-p t)
  (uniquify-ignore-buffers-re "^\\*"))

;; Window dividers separate windows visually. Window dividers are bars that can
;; be dragged with the mouse, thus allowing you to easily resize adjacent
;; windows.
;; https://www.gnu.org/software/emacs/manual/html_node/emacs/Window-Dividers.html
(add-hook 'elpaca-after-init-hook #'window-divider-mode)

;; Enable on-the-fly spell checking (Flyspell mode).
(add-hook 'text-mode-hook #'flyspell-mode)

;; Change split behavior

(defun delete-window-evenly ()
  (interactive)
  (command-execute 'delete-window)
  (command-execute 'balance-windows))
(global-set-key (kbd "C-x 0") 'delete-window-evenly)

(defun split-vertical-evenly ()
  (interactive)
  (command-execute 'split-window-vertically)
  (command-execute 'balance-windows))
(global-set-key (kbd "C-x 2") 'split-vertical-evenly)

(defun split-horizontal-evenly ()
  (interactive)
  (command-execute 'split-window-horizontally)
  (command-execute 'balance-windows))
(global-set-key (kbd "C-x 3") 'split-horizontal-evenly)

;; Increase/Decrease Font

(defun rs/zoom-frame (&optional amt frame)
  "Increaze FRAME font size by amount AMT. Defaults to selected
frame if FRAME is nil, and to 1 if AMT is nil."
  (interactive "p")
  (let* ((frame (or frame (selected-frame)))
	     (font (face-attribute 'default :font frame))
	     (size (font-get font :size))
	     (amt (or amt 1))
	     (new-size (+ size amt)))
    (set-frame-font (font-spec :size new-size) t `(,frame))
    (message "Frame's font new size: %d" new-size)))

(defun rs/zoom-frame-out (&optional amt frame)
  "Call `rs/zoom-frame' with negative argument."

  (interactive "p")
  (rs/zoom-frame (- (or amt 1)) frame))

(global-set-key (kbd "C-=") 'rs/zoom-frame)
(global-set-key (kbd "C--") 'rs/zoom-frame-out)
(global-set-key (kbd "<C-down-mouse-4>") 'rs/zoom-frame)
(global-set-key (kbd "<C-down-mouse-5>") 'rs/zoom-frame-out)
(global-set-key (kbd "<C-wheel-up>") 'rs/zoom-frame)
(global-set-key (kbd "<C-wheel-down>") 'rs/zoom-frame-out)

;; =========================
;; Org
;; =========================

;; Agenda variables
(setq org-directory "~/Documents/org/") ; Non-absolute paths for agenda and
                                        ; capture templates will look here.

(setq org-agenda-files '("inbox.org" "work.org"))

;; Default tags
(setq org-tag-alist '(
                      ;; locale
                      (:startgroup)
                      ("home" . ?h)
                      ("work" . ?w)
                      ("school" . ?s)
                      (:endgroup)
                      (:newline)
                      ;; scale
                      (:startgroup)
                      ("one-shot" . ?o)
                      ("project" . ?j)
                      ("tiny" . ?t)
                      (:endgroup)
                      ;; misc
                      ("meta")
                      ("review")
                      ("reading")))

;; Org-refile: where should org-refile look?
(setq org-refile-targets 'FIXME)

;;; Phase 3 variables

;; Org-roam variables
(setq org-roam-directory "~/Documents/org-roam/")
(setq org-roam-index-file "~/Documents/org-roam/index.org")

;;; Optional variables

;; Advanced: Custom link types
;; This example is for linking a person's 7-character ID to their page on the
;; free genealogy website Family Search.
(setq org-link-abbrev-alist
      '(("family_search" . "https://www.familysearch.org/tree/person/details/%s")))

(use-package org
  :elpaca nil
  :hook ((org-mode . visual-line-mode)  ; wrap lines at word breaks
         (org-mode . flyspell-mode))    ; spell checking!

  :bind (:map global-map
              ("C-c l s" . org-store-link)          ; Mnemonic: link → store
              ("C-c l i" . org-insert-link-global)) ; Mnemonic: link → insert
  :config
  (require 'oc-csl)                     ; citation support
  (add-to-list 'org-export-backends 'md)
  (setf (cdr (assoc 'file org-link-frame-setup)) 'find-file)
  (setq org-export-with-smart-quotes t)
  (setq org-todo-keywords
        '((sequence "TODO(t)" "WAITING(w@/!)" "STARTED(s!)" "|" "DONE(d!)" "OBSOLETE(o@)")))
  (setq org-outline-path-complete-in-steps nil)
  (setq org-refile-use-outline-path 'file)
  (setq org-capture-templates
        '(("c" "Default Capture" entry (file "inbox.org")
           "* TODO %?\n%U\n%i")
          ;; Capture and keep an org-link to the thing we're currently working with
          ("r" "Capture with Reference" entry (file "inbox.org")
           "* TODO %?\n%U\n%i\n%a")
          ;; Define a section
          ("w" "Work")
          ("wm" "Work meeting" entry (file+headline "work.org" "Meetings")
           "** TODO %?\n%U\n%i\n%a")
          ("wr" "Work report" entry (file+headline "work.org" "Reports")
           "** TODO %?\n%U\n%i\n%a")))
  (setq org-agenda-custom-commands
        '(("n" "Agenda and All Todos"
           ((agenda)
            (todo)))
          ("w" "Work" agenda ""
           ((org-agenda-files '("work.org")))))))