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;;; ycp-complete.el -- My config for minibuffer and completions -*- lexical-binding: t -*-

;; Copyright (C) 2023 Free Software Foundation.

;; Author: Yuchen Pei <id@ypei.org>
;; Package-Requires: ((emacs "28.2"))

;; This file is part of dotfiles.

;; dotfiles is free software: you can redistribute it and/or modify it under
;; the terms of the GNU Affero General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.

;; dotfiles is distributed in the hope that it will be useful, but WITHOUT
;; ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
;; or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Affero General
;; Public License for more details.

;; You should have received a copy of the GNU Affero General Public
;; License along with dotfiles.  If not, see <https://www.gnu.org/licenses/>.

;;; Commentary:

;; My config for minibuffer and completions.

;;; Code:



;; completion, minibuffer, corfu, tempel
;; part adapted from prot-dotfiles
(my-package minibuffer
  (setq completion-styles '(basic partial-completion emacs22 orderless))
  (setq completion-category-overrides
        ;; NOTE 2021-10-25: I am adding `basic' because it works better as a
        ;; default for some contexts.  Read:
        ;; <https://debbugs.gnu.org/cgi/bugreport.cgi?bug=50387>.
        ;;
        ;; `partial-completion' is a killer app for files, because it
        ;; can expand ~/.l/s/fo to ~/.local/share/fonts.
        ;;
        ;; If `basic' cannot match my current input, Emacs tries the
        ;; next completion style in the given order.  In other words,
        ;; `orderless' kicks in as soon as I input a space or one of its
        ;; style dispatcher characters.
        '((file (styles . (basic partial-completion orderless)))
          (project-file (styles . (basic substring partial-completion orderless)))
          (imenu (styles . (emacs22 substring orderless)))
          (kill-ring (styles . (emacs22 substring orderless)))
          (consult-location (styles . (emacs22 substring orderless)))
          (eglot (styles . (emacs22 substring orderless)))))
  (setq completion-ignore-case t)
  (setq read-buffer-completion-ignore-case t)
  (setq read-file-name-completion-ignore-case t)
  ;; disable space to run minibuffer-complete-word
  (my-keybind minibuffer-mode-map
    "SPC" nil
    "?" nil)
  (my-keybind minibuffer-local-completion-map
    "SPC" nil
    "?" nil)
  (setq enable-recursive-minibuffers t)
  (minibuffer-depth-indicate-mode 1)
  (setq resize-mini-windows t)
  (setq read-answer-short t)
  (setq echo-keystrokes 0.25)
  ;; Do not allow the cursor to move inside the minibuffer prompt.  I
  ;; got this from the documentation of Daniel Mendler's Vertico
  ;; package: <https://github.com/minad/vertico>.
  (setq minibuffer-prompt-properties
        '(read-only t cursor-intangible t face minibuffer-prompt))
  (add-hook 'minibuffer-setup-hook #'cursor-intangible-mode)
  (minibuffer-electric-default-mode 1))

;;;; `savehist' (minibuffer and related histories)
(my-package savehist
  (setq savehist-file (locate-user-emacs-file "savehist"))
  (setq history-length 500)
  (setq history-delete-duplicates t)
  (setq savehist-save-minibuffer-history t)
  (setq savehist-additional-variables '(register-alist kill-ring))
  (savehist-mode 1))

;;;; `dabbrev' (dynamic word completion (dynamic abbreviations))
(my-package dabbrev
  (setq dabbrev-abbrev-char-regexp "\\sw\\|\\s_")
  (setq dabbrev-abbrev-skip-leading-regexp "[$*/=~']")
  (setq dabbrev-backward-only nil)
  (setq dabbrev-case-distinction 'case-replace)
  (setq dabbrev-case-fold-search nil)
  (setq dabbrev-case-replace 'case-replace)
  (setq dabbrev-check-other-buffers t)
  (setq dabbrev-eliminate-newlines t)
  (setq dabbrev-upcase-means-case-search t))

;;; icomplete
(my-package icomplete
  (icomplete-vertical-mode t)
  (setq icomplete-show-matches-on-no-input t)
  (setq icomplete-prospects-height 4)
  (setq icomplete-scroll t)
  (setq icomplete-matches-format "[%s/%s] ")
  (require 'my-complete)
  (my-keybind icomplete-minibuffer-map
    "<tab>" #'icomplete-force-complete
    "M-<tab>" #'minibuffer-complete
    "C-M-i" #'minibuffer-complete
    "C-s"  #'icomplete-forward-completions
    "C-r"  #'icomplete-backward-completions
    "C-v" #'my-icomplete-vertical-forward-page
    "M-v" #'my-icomplete-vertical-backward-page
    "<ret>" nil))

(my-package recentf
  (setq recentf-max-saved-items 1000)
  (setq
   recentf-exclude
   '("~\\'" "\\`out\\'" "\\.log\\'" "^/[^/]*:" "\\.el\\.gz\\'" "~$" "/mnt/"
     "^/tmp/"))
  (recentf-mode 1)
  ;; disable recentf-save-list on quit on non-emacs-client so that it does not
  ;; overwrite the recentf file
  (require 'my-utils)
  (unless (my-server-p)
	  (setq kill-emacs-hook (delete 'recentf-save-list kill-emacs-hook)))
  (require 'my-complete)
  (my-server-timer recentf-timer nil 300 'my-recentf-save-list-silently)
  )

;;; corfu
(my-package corfu
  (:install t)
  (:delay 5)
  (global-corfu-mode 1)
  (corfu-popupinfo-mode 1)
  (setq corfu-auto t
        corfu-cycle t
        corfu-separator ?\s)
  (define-key corfu-map [remap next-line] nil)
  (define-key corfu-map [remap previous-line] nil)
  (define-key corfu-map [remap beginning-of-buffer] nil)
  (define-key corfu-map [remap end-of-buffer] nil)
  (define-key corfu-map [remap move-beginning-of-line] nil)
  (define-key corfu-map [remap move-end-of-line] nil)
  (my-keybind corfu-map
    "C-j" #'corfu-insert
    "<RET>" nil
    "C-s" #'corfu-next
    "C-r" #'corfu-previous
    "C-a" nil
    )
  (require 'my-corfu)
  (add-hook 'minibuffer-setup-hook
            #'my-corfu-enable-always-in-minibuffer 1)
;;; corfu does not work well in gud as it "flushes" completion
;;; suggestions to the buffer
  (setq global-corfu-modes '((not gud-mode) t))
  )

;;; We still need company mode because corfu does not work well in
;;; certain modes yet
(my-package company
  (:install t)
  (:delay 5)
  (add-hook 'message-mode-hook #'company-mode)
  (setq company-idle-delay .1
        company-minimum-prefix-length 3
        company-selection-wrap-around t
        company-show-numbers t
        company-require-match 'never)
  (my-keybind company-active-map
    "\t" #'company-complete-selection
    "<tab>" #'company-complete-selection
    "<RET>" nil
    "<return>" nil
    "C-j" #'company-complete-selection
    "C-s" #'company-select-next
    "C-r" #'company-select-previous
    ))

;;; cape
(my-package cape
  (:install t)
  (:delay 15)
  (setq cape-dabbrev-min-length 3)
  (setq cape-symbol-wrapper
        '((org-mode ?~ ?~)
          (markdown-mode ?` ?`)
          (log-edit-mode ?' ?')
          (message-mode ?' ?')))
  (dolist (backend '(cape-elisp-symbol cape-keyword cape-file cape-history
                                       cape-dabbrev))
    (add-to-list 'completion-at-point-functions backend)))

(my-package imenu
  (:delay 5)
  (my-keybind global-map "M-g i" #'imenu)
  )

;;; consult
(my-package consult
  (:install t)
  (:delay 10)
  (setq consult-line-numbers-widen t)
  ;; (setq completion-in-region-function #'consult-completion-in-region)
  (setq consult-async-min-input 3)
  (setq consult-async-input-debounce 0.5)
  (setq consult-async-input-throttle 0.8)
  (setq consult-narrow-key ">")
  (setq register-preview-delay 0.8
        register-preview-function #'consult-register-format)
  (setq consult-find-args "find . -not ( -path */.git* -prune )")
  (setq consult-preview-key 'any)
  (add-to-list 'consult-mode-histories '(vc-git-log-edit-mode . log-edit-comment-ring))
  (add-hook 'completion-list-mode-hook #'consult-preview-at-point-mode)
  (require 'consult-imenu) ; the `imenu' extension is in its own file
  (require 'my-consult)
  (my-keybind global-map
    "C-x b" #'consult-buffer
    "C-z" #'consult-buffer
    "C-x l" #'consult-locate
    "M-K" #'consult-keep-lines            ; M-S-k is similar to M-S-5 (M-%)
    "M-F" #'consult-focus-lines           ; same principle
    "M-g g" #'consult-goto-line
    "M-s M-b" #'consult-buffer
    "M-s M-f" #'consult-find
    "M-s M-G" #'my-consult-grep
    "M-s M-g" #'my-consult-grep-default
    "M-s M-h" #'consult-history
    "M-s M-i" #'consult-imenu
    "M-s M-l" #'consult-line
    "M-s M-m" #'consult-mark
    "M-y" #'consult-yank-pop
    "M-s M-s" #'consult-outline)
  (my-keybind consult-narrow-map "?" #'consult-narrow-help)
  (my-keybind minibuffer-local-map "C-s" #'consult-history)
  )

;;; marginalia
(my-package marginalia
  (:install t)
  (:delay 10)
  (setq marginalia-max-relative-age 0)
  (my-keybind minibuffer-local-map
    "M-A" #'marginalia-cycle)
  (marginalia-mode 1))

(setq tempel-path
      (locate-user-emacs-file "*tempel-templates"))
(my-package tempel
  (:install t)
  (:delay 15)
  (require 'my-tempel)
  (my-keybind global-map
    "M-=" #'tempel-complete             ; Alternative: `tempel-expand'
    "M-*" #'tempel-insert)
  (my-keybind tempel-map
    "RET" #'tempel-done
    "C-p" #'tempel-previous
    "C-n" #'tempel-next
    "<tab>" #'tempel-next
    "<backtab>" #'tempel-previous
    "C-S-<iso-lefttab>" #'tempel-previous)
  (require 'my-tempel)
  (my-add-hooks #'my-tempel-setup-capf '(prog-mode-hook text-mode-hook))
  (add-hook 'eglot-managed-mode-hook #'my-tempel-setup-capf)
  )

;; consult-recoll
(my-package consult-recoll
  (:delay 30)
  (:install t)
  )

(my-package hmm
  (:delay 60)
  (my-read-local-config)
  (my-setq-from-local hmm-web-search-engines hmm-transformers hmm-handlers)
  (require 'my-net)
  (setq hmm-web-browsers
        '((:name eww :command eww)
          (:name luwak :command luwak-open)
          (:name firefox :command browse-url-firefox)
          (:name firefox-private :command my-browse-url-firefox-private)
          (:name tor-browser :command my-browse-url-tor-browser)
          (:name mullvad-browser :command my-browse-url-mullvad)
          (:name qutebrowser :command my-browse-url-qutebrowser)
          (:name download-and-open :command my-fetch-url)))
  (setq hmm-external-handlers
        '((:name mpv
                 :external-command "mpv %U"
                 :display-name "mpv player"
                 :description "Play url with mpv"
                 :schemes
                 ("ftp" "http" "https" "mms" "rtmp" "rtsp" "sftp" "smb" "srt")
                 :handling :url)
          (:name wget
                 :external-command "wget %U"
                 :display-name "GNU Wget"
                 :description "The non-interactive network downloader"
                 :schemes
                 ("ftp" "http" "https")
                 :handling :url)
          (:name qutebrowser
                 :external-command "qutebrowser %U"
                 :display-name "qutebrowser"
                 :description "A keyboard-driven, vim-like browser based on PyQt5"
                 :schemes
                 ("http" "https")
                 :handling :url)
          (:name torsocks-mpv
                 :external-command "torsocks mpv %U"
                 :display-name "mpv player torsocks"
                 :description "Play url with mpv over torsocks"
                 :schemes
                 ("ftp" "http" "https" "mms" "rtmp" "rtsp" "sftp" "smb" "srt")
                 :handling :url)
          (:name clean-elc-compile
                 :external-command "~/bin/clean-elc-compile %f"
                 :description "Clean compile a directory of elisp files"
                 :display-buffer t
                 :mimetypes ("inode/directory")
                 :handling :file)
          (:name mogrify-strip
                 :external-command "mogrify -strip %F"
                 :description "Strip images of all profiles and comments"
                 :display-buffer t
                 :handling :file)
          (:name pacfind
                 :external-command "pacfind %f"
                 :description "Find the pacman package containing a command"
                 :display-buffer t
                 :handling :query)))
  (setq hmm-matchers
        '(((thing-at-point-url-at-point) . hmm-url)
          ((thing-at-point-file-at-point) . hmm-file)
          ((and (derived-mode-p 'dired-mode) (dired-get-filename nil t))
           . hmm-file)
          ((and (derived-mode-p 'dired-mode) (expand-file-name default-directory))
           . hmm-file)
          ((and (derived-mode-p 'org-mode) (my-org-link-at-point)) . hmm-url)
          ((get-text-property (point) 'shr-url) . hmm-url)
          ((and (derived-mode-p 'luwak-mode)
                (get-text-property (point) 'url))
           . hmm-url)
          ((and (derived-mode-p 'luwak-mode)
                (plist-get luwak-data :url))
           . hmm-url)
          ((thing-at-point 'symbol) . hmm-query)
          ((buffer-file-name) . hmm-file)
          ((expand-file-name default-directory) . hmm-file)))
  (hmm-update))

(provide 'ycp-complete)