;;; -*- lexical-binding: t; -*-
;;;; Elpaca package setup
;; NixOS emacs doesn't include a build time. Assume a recent version.
(setq elpaca-core-date 20240101)
(setq elpaca-directory "~/.cache/emacs/elpaca")
(load-file (expand-file-name "elpaca-installer.el" user-emacs-directory))

(add-hook 'emacs-startup-hook
          (lambda ()
            (message "Emacs ready in %s with %d garbage collections."
                     (format "%.2f seconds"
                             (float-time
                              (time-subtract after-init-time before-init-time)))
                     gcs-done)))

(elpaca elpaca-use-package
  ;; Enable :elpaca use-package keyword.
  (elpaca-use-package-mode)
  ;; Assume :elpaca t unless otherwise specified.
  (setq elpaca-use-package-by-default t))
(elpaca-wait)

;;;; GC and performance
(use-package gcmh
  :hook
  (elpaca-after-init . kj/enable-gcmh)
  :config
  (defun kj/enable-gcmh ()
                         (message "Enabling gcmh")
                         (gcmh-mode 1)))

(setopt inhibit-compacting-font-caches t)
(add-hook 'elpaca-after-init-hook 'kj/restore-file-name-handler-alist)

;;;; Basic settings and customizations
(defvar kj/cache-dir "~/.cache/emacs")

(setopt user-full-name "KJ Orbekk"
        user-mail-address "kj@orbekk.com"

        initial-scratch-message nil

        switch-to-buffer-obey-display-actions t
        switch-to-buffer-in-dedicated-window 'pop
        even-window-sizes 'width-only
        custom-file (expand-file-name "emacs-custom.el" user-emacs-directory)
        bookmark-file (expand-file-name "boomarks" kj/cache-dir)
        use-short-answers t
        outline-minor-mode-cycle t
        outline-minor-mode-highlight 'override
        fast-but-imprecise-scrolling t
        visible-bell t
        auto-save-list-file-prefix (expand-file-name
                                    "auto-save-list/.saves-" kj/cache-dir)
        alert-default-style '(libnotify)

        use-dialog-box nil
        display-time-24hr-format t

        next-screen-context-lines 10)

(load custom-file :noerror t)

;;;;; Modes
(use-package emacs
  :elpaca nil
  :defer 1
  :init
  (dolist (hook '(markdown-mode-hook
                  org-mode-hook))
    (add-to-list hook #'visual-line-mode))
  (global-hl-line-mode 1)
  (global-auto-revert-mode 1))

;;;; Navigation

(use-package avy
  :bind
  (("C-c l" . avy-goto-char)
   ("C-c n" . avy-goto-line))
  :config
  (setq avy-keys '(?a ?o ?e ?u ?i ?d ?h ?t ?n ?s))
  (defun avy-action-embark (pt)
    (unwind-protect
        (save-excursion
          (goto-char pt)
          (embark-act))
      (select-window
       (cdr (ring-ref avy-ring 0))))
    t)
  (setf (alist-get ?. avy-dispatch-alist) 'avy-action-embark)
  (define-key isearch-mode-map (kbd "M-j") 'avy-isearch))

(winner-mode 1)

(use-package ace-window
  :bind
  (("C-c e" . ace-window))
  :config
  (setq aw-dispatch-always t)
  (setq aw-keys '(?a ?o ?e ?u ?i ?d ?h ?t ?n ?s))
  ;; Make ace window more visible
  ;; (custom-set-faces!
  ;;  '(aw-leading-char-face
  ;;    :foreground "white" :background "red"
  ;;    :weight bold :height 2.5 :box (:line-width 10 :color "red")))
  )

(defun kj/balance-main-window ()
  (balance-windows (window-main-window)))

;; Prefer horizontal splits.
(setq split-height-threshold 100)

(defun kj/split-window-below ()
  (interactive)
  (split-window-below)
  (kj/balance-main-window)
  (other-window 1))

(defun kj/split-window-right ()
  (interactive)
  (split-window-right)
  (kj/balance-main-window)
  (other-window 1))

(global-set-key (kbd "C-x 3") #'kj/split-window-right)
(global-set-key (kbd "C-x 2") #'kj/split-window-below)

;;;; Completion
(use-package embark
  :ensure t

  :bind
  (("C-." . embark-act)
   ("C-;" . embark-dwim)
   ("C-h C-b" . embark-bindings))

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

  :config
  (defun find-file-keeping-default-directory (filename)
    (let ((dir default-directory))
      (with-current-buffer (find-file filename)
        (setq-local default-directory dir))))
  (define-key embark-file-map "@" 'find-file-keeping-default-directory)

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

(use-package vertico
  :init
  (vertico-mode))

(use-package marginalia
  :bind
  (:map minibuffer-local-map
	("M-n" . marginalia-cycle))
  :init
  (marginalia-mode))

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

(defun kj/consult-ripgrep-here (&optional dir initial)
  (interactive "P")
  (unless dir
    (setq dir default-directory))
  (consult-ripgrep dir initial))

;; Example configuration for Consult
(use-package consult
  ;; Replace bindings. Lazily loaded due by `use-package'.
  :bind (;; C-c bindings (mode-specific-map)
         ("C-c h" . kj/consult-history)
         ;;("C-c m" . consult-mode-command)
         ("C-c k" . consult-kmacro)
         ;; C-x bindings (ctl-x-map)
         ("C-x M-:" . consult-complex-command)     ;; orig. repeat-complex-command
         ("C-x b" . consult-buffer)                ;; orig. switch-to-buffer
         ("C-x C-b" . consult-buffer)                ;; orig. switch-to-buffer
         ("C-x 4 b" . consult-buffer-other-window) ;; orig. switch-to-buffer-other-window
         ("C-x 5 b" . consult-buffer-other-frame)  ;; orig. switch-to-buffer-other-frame
         ("C-x r b" . consult-bookmark)            ;; orig. bookmark-jump
         ("C-x p b" . consult-project-buffer)      ;; orig. project-switch-to-buffer
	 ("C-c f r" . consult-recent-file)
         ;; Custom M-# bindings for fast register access
         ("M-#" . consult-register-load)
         ("M-'" . consult-register-store)          ;; orig. abbrev-prefix-mark (unrelated)
         ("C-M-#" . consult-register)
         ;; Other custom bindings
         ("M-y" . consult-yank-pop)                ;; orig. yank-pop
         ("<help> a" . consult-apropos)            ;; orig. apropos-command
         ;; M-g bindings (goto-map)
         ("M-g e" . consult-compile-error)
         ("M-g f" . consult-flymake)               ;; Alternative: consult-flycheck
         ("M-g g" . consult-goto-line)             ;; orig. goto-line
         ("M-g M-g" . consult-goto-line)           ;; orig. goto-line
         ("M-g o" . consult-outline)               ;; Alternative: consult-org-heading
         ("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 (search-map)
         ("M-s d" . consult-find)
         ("M-s D" . consult-locate)
         ;; ("M-s g" . consult-grep)
         ("M-s G" . consult-git-grep)
         ("M-s r" . consult-ripgrep)
         ("M-s R" . kj/consult-ripgrep-here)
         ("M-s l" . consult-line)
         ("M-s L" . consult-line-multi)
         ("M-s m" . consult-multi-occur)
         ("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)         ;; orig. isearch-edit-string
         ("M-s e" . consult-isearch-history)       ;; orig. isearch-edit-string
         ("M-s l" . consult-line)                  ;; needed by consult-line to detect isearch
         ("M-s L" . consult-line-multi)            ;; needed by consult-line to detect isearch
         ;; Minibuffer history
         :map minibuffer-local-map
         ("M-s" . kj/consult-history)                 ;; orig. next-matching-history-element
         ("M-r" . kj/consult-history))                ;; orig. previous-matching-history-element

  ;; Enable automatic preview at point in the *Completions* buffer. This is
  ;; relevant when you use the default completion UI.
  ;; :hook (completion-list-mode . consult-preview-at-point-mode)

  ;; The :init configuration is always executed (Not lazy)
  :init

  ;; Optionally configure the register formatting. This improves the register
  ;; preview for `consult-register', `consult-register-load',
  ;; `consult-register-store' and the Emacs built-ins.
  (setq register-preview-delay 0.5
        register-preview-function #'consult-register-format)

  ;; Optionally tweak the register preview window.
  ;; This adds thin lines, sorting and hides the mode line of the 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)

  ;; Configure other variables and modes in the :config section,
  ;; after lazily loading the package.
  :config

  ;; Use consult for completion.
  (setq completion-in-region-function #'consult-completion-in-region)

  ;; Optionally configure preview. The default value
  ;; is 'any, such that any key triggers the preview.
  (setq consult-preview-key '(:debounce 0.3 any))
  ;; (setq consult-preview-key (kbd "M-."))
  ;; (setq consult-preview-key (list (kbd "<S-down>") (kbd "<S-up>")))
  ;; For some commands and buffer sources it is useful to configure the
  ;; :preview-key on a per-command basis using the `consult-customize' macro.
  ;; (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-recent-file
  ;;  consult--source-project-recent-file
  ;;  :preview-key (kbd "M-."))

  ;; Optionally configure the narrowing key.
  ;; Both < and C-+ work reasonably well.
  (setq consult-narrow-key "<") ;; (kbd "C-+")

  (setq consult-ripgrep-args
        "rg --null --line-buffered --color=never --max-columns=1000 --path-separator /   --smart-case --no-heading --with-filename --line-number --search-zip --hidden")

  ;; Optionally make narrowing help available in the minibuffer.
  ;; You may want to use `embark-prefix-help-command' or which-key instead.
  ;; (define-key consult-narrow-map (vconcat consult-narrow-key "?") #'consult-narrow-help)

  ;; By default `consult-project-function' uses `project-root' from project.el.
  ;; Optionally configure a different project root function.
  ;; There are multiple reasonable alternatives to chose from.
  ;;;; 1. project.el (the default)
  ;;(setq consult-project-function #'consult--default-project-function)
  ;;;; 2. projectile.el (projectile-project-root)
  (autoload 'projectile-project-root "projectile")
  (setq consult-project-function (lambda (_) (projectile-project-root)))
  ;;;; 3. vc.el (vc-root-dir)
  ;; (setq consult-project-function (lambda (_) (vc-root-dir)))
  ;;;; 4. locate-dominating-file
  ;; (setq consult-project-function (lambda (_) (locate-dominating-file "." ".git")))
  )

(use-package orderless
  :init
  (setq completion-styles '(orderless basic)
        completion-category-defaults nil
        completion-category-overrides '((file (styles partial-completion)))))


;;;; Appearance

(use-package emacs
  :elpaca nil
  :init
  (column-number-mode)
  (set-fringe-mode 10))

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

(use-package emacs
  :elpaca nil
  :init
  (setq-default show-trailing-whitespace t)
  (dolist (mode '(calendar-mode-hook
                  eshell-mode-hook
                  term-mode-hook
                  comint-mode-hook
                  completion-list-mode))
    (add-hook mode
              (defun kj/disable-trailing-whitespace ()
                (setq show-trailing-whitespace nil)))))

(use-package ws-butler
  :hook (prog-mode . ws-butler-mode))

(use-package all-the-icons
  :if (display-graphic-p))

(use-package emojify
  :bind
  (("C-c C-i C-e" . emojify-insert-emoji))
  :hook (after-init . global-emojify-mode)
  :config
  (emojify-set-emoji-styles '(unicode)))

;;;;; Mode line
(use-package emacs
  :elpaca nil
  :defer 5
  :init
  (require 'battery)
  (when (and battery-status-function
	     (not (string-match-p "unknown"
				  (battery-format "%B"
						  (funcall battery-status-function)))))
    (display-battery-mode 1)))
(setopt display-time-default-load-average nil)

(display-time-mode 1)

(use-package doom-modeline
  :ensure t
  :disabled
  :init (doom-modeline-mode 1)
  :config
  (setq doom-modeline-buffer-encoding 'nondefault))

(use-package emacs
  :elpaca nil
  :defer 1
  :init
  (defvar kj/minor-mode-alist-overrides
    '((ws-butler "")
      (gcmh-mode "")
      (editorconfig-mode "")
      (yas-minor-mode "")
      (selected-minor-mode "")
      (anzu-mode "")
      (projectile-mode "")
      (eldoc-mode "")
      (mixed-pitch-mode "")
      (which-key-mode "")))
  (defun kj/clean-mode-line ()
    (dolist (override kj/minor-mode-alist-overrides)
      (if-let ((e (assoc (car override) minor-mode-alist)))
          (setf (nth 1 e) (nth 1 override)))))
  (add-to-list 'change-major-mode-hook 'kj/clean-mode-line))


;;;;; Theme

(use-package wombat-theme :elpaca nil
  :disabled
  :init
  (load-theme 'wombat)
  :config
  (custom-theme-set-faces
   'wombat
   '(default ((t :background "#111111")))
   '(ansi-color-black ((t :background "#000000")))
   '(hl-line ((t :inherit () :background "#242424")))))

(use-package modus-themes
  :init
  :disabled
  (load-theme 'modus-operandi-tinted)
  (load-theme 'modus-vivendi-tinted t t)
  :config
  (custom-theme-set-faces
   'modus-vivendi-tinted
   '(avy-lead-face ((t :inherit (bold modus-themes-subtle-blue))))
   '(avy-lead-face-0 ((t :inherit (bold modus-themes-subtle-cyan))))
   '(avy-lead-face-1 ((t :inherit (bold modus-themes-subtle-green))))
   '(avy-lead-face-2 ((t :inherit (bold modus-themes-subtle-magenta))))))

(use-package emacs :elpaca nil
  :init
  (load-theme 'deeper-blue))

(use-package doom-themes)

;;;; Shell and terminal
(setq shell-prompt-pattern "^[^#$%>\n]*[#$%>❯] *"
      explicit-shell-file-name "zsh"
      explicit-zsh-args '("--login" "--interactive")
      comint-use-prompt-regexp t)
(defun kj/shell-buffer-name ()
  (concat "*shell:" default-directory "*"))

(defun kj/shell-here ()
  (interactive)
  (let ((buffer
         (shell (kj/shell-buffer-name))))
    (with-current-buffer buffer
      (let* ((proc (get-buffer-process (current-buffer)))
             (sentinel (process-sentinel proc)))
        (set-process-sentinel
         proc
         `(lambda (proc signal)
            (funcall ',sentinel proc signal)
            (and (memq (process-status proc) '(exit signal))
                 (buffer-live-p (process-buffer proc))
                 (message "Shell died, killing buffer %s"
                          (process-buffer proc))
                 (kill-buffer (process-buffer proc)))))))))

(use-package coterm
  :config
  (coterm-mode 1))
(add-to-list 'comint-output-filter-functions
             'comint-osc-process-output)

;; Update buffer name to reflect directory.
(advice-add 'cd :after
            (defun kj/maybe-rename-shell (&rest args)
              (and (derived-mode-p 'shell-mode)
                   (rename-buffer
                    (kj/shell-buffer-name)))))

;;;; Include modules in lisp/
(defvar kj/module-directory (expand-file-name "lisp" user-emacs-directory))
(push kj/module-directory load-path)
(require 'kj-lib)
(require 'kj-init)
(cl-loop for path in (directory-files kj/module-directory)
         if (string-match "\\([^/]*\\).el" path)
         do (require (intern (match-string-no-properties 1 path))))

;;;; Enable commands
(put 'narrow-to-region 'disabled nil)
(put 'downcase-region 'disabled nil)
(put 'upcase-region 'disabled nil)
(put 'list-timers 'disabled nil)
(put 'set-goal-column 'disabled nil)
(put 'scroll-left 'disabled nil)

;;;; Local variables
;; Local Variables:
;; eval: (outline-minor-mode 1)
;; eval: (outline-hide-sublevels 2)
;; outline-regexp: ";;;;*"
;; End: