nixconfig/emacs/init.el

;;; init.el --- Description -*- lexical-binding: t; -*-
;;
;; Copyright (C) 2023 Daniel Ziltener
;;
;; Author: Daniel Ziltener <dziltener@lyrion.ch>
;; Maintainer: Daniel Ziltener <dziltener@lyrion.ch>
;; Created: November 13, 2023
;; Modified: November 13, 2023
;; Version: 0.0.1
;; Keywords: abbrev bib c calendar comm convenience data docs
;; emulations extensions faces files frames games hardware help
;; hypermedia i18n internal languages lisp local maint mail matching
;; mouse multimedia news outlines processes terminals tex tools unix
;; vc wp
;; Homepage: https://gitea.lyrion.ch/zilti/guixconfig
;; Package-Requires: ((emacs "29.1"))
;;
;; This file is not part of GNU Emacs.
;;
;;; Commentary:
;;
;;  Description
;;
;;; Code:
;;; Requirements
;; Since I am using `cl-defun` in this init file, I need to require
;; `cl-macs`.
(require 'cl-macs)

;;; Early Variables
(setq custom-file "~/.config/emacs/custom.el")
(when (file-exists-p custom-file)
  (load custom-file))

(defvar init-dir (file-name-directory (or load-file-name (buffer-file-name))))

;;; Package Management

;;;; Repositories
(require 'package)
(add-to-list 'package-archives '("melpa" . "https://melpa.org/packages/") t)
(package-initialize)

;;;; VC

;; This will be unnecessary starting at Emacs 30

(unless (package-installed-p 'vc-use-package)
  (package-vc-install "https://github.com/slotThe/vc-use-package"))
(setopt use-package-always-ensure t)
(require 'vc-use-package)

;;; Personal Information Setup
(setq user-full-name "Daniel Ziltener"
      user-mail-address "dziltener@lyrion.ch")

;; I use `pass` as password storage.
(auth-source-pass-enable)

;;; Package Management Configuration
;; See: https://github.com/radian-software/el-patch
(use-package el-patch)

;;;; Guix Management
(use-package guix
  :after magit-popup)

;;; Helper Functions
(cl-defun conditional-keybind
    (filter-fn target-fn
               &optional (fail-fn #'self-insert-command))
  "Creates a keybinding that checks `filter-fn`.  If it succeeds,
  `target-fn` is run, otherwise `fail-fn`. If no fail-fn is given,
  `self-insert-command` is run instead.
  `target-fn` and `fail-fn` must both be interactive."
  (lambda (_prefix)
    (interactive "P")
    (if (funcall filter-fn)
        (call-interactively target-fn)
      (call-interactively fail-fn))))

;;; Emacs
(use-package emacs
  :after org
  :custom
  (completion-cycle-threshold 10)
  (display-time-mode t)
  (enable-recursive-minibuffers t)
  (enable-remote-dir-locals t)
  (fill-column 100)
  (global-hl-line-mode t)
  (global-prettify-symbols-mode t)
  (indent-tabs-mode nil)
  (menu-bar-mode nil)
  (minibuffer-prompt-properties (read-only t cursor-intangible t face minibuffer-prompt))
  (native-comp-async-report-warnings-errors nil)
  (display-warning-minimum-level :error)
  (warning-suppress-types '(emacs))
  (read-extended-command-predicate #'command-completion-default-include-p)
  (recentf-mode t)
  (pixel-scroll-precision-large-scroll-height 30)
  (scroll-bar-mode nil)
  (tab-always-indent 'complete)
  (tool-bar-mode nil)
  (newsticker-url-list-defaults nil)
  (newsticker-url-list
   '(("Tagesschau" "https://www.tagesschau.de/index~atom.xml" nil nil nil)
     ("NZZ Neuste" "https://www.nzz.ch/recent.rss" nil nil nil)
     ("SRF News" "https://www.srf.ch/news/bnf/rss/1646" nil nil nil)
     ("SRF Wissen" "https://www.srf.ch/bnf/rss/630" nil nil nil)
     ("Deutschlandfunk Nachrichten" "https://www.deutschlandfunk.de/nachrichten-100.rss" nil nil nil)
     ("Deutschlandfunk Wissen" "https://www.deutschlandfunk.de/wissen-106.rss" nil nil nil)
     ("RBB" "https://www.rbb24.de/aktuell/index.xml/feed=rss.xml" nil nil nil)
     ("Guix" "https://guix.gnu.org/feeds/blog.atom" nil nil nil)
     ("Mastering Emacs" "https://www.masteringemacs.org/feed" nil nil nil)
     ("Schiene.de" "https://www.schiene.de/feed/" nil nil nil)
     ("Anil Dash Blog" "https://www.anildash.com/feed.xml" nil nil nil)
     ("Karl Voit's Blog" "https://karl-voit.at/feeds/lazyblorg-all.atom_1.0.links-and-content.xml" nil nil nil)
     ("Vaxry's Blog" "https://blog.vaxry.net/feed" nil nil nil)))
  :custom-face
  (default ((t (:weight normal :height 110 :family "MonaspiceXe Nerd Font Mono"))))
  (fixed-pitch ((t (:weight normal :height 110 :family "MonaspiceXe Nerd Font Mono"))))
  (variable-pitch ((t (:weight normal :height 135 :family "MonaspiceXe Nerd Font Propo"))))
  :hook
  (minibuffer-setup . cursor-intangible-mode)
  :config
  (setq xref-backend-functions (list))
  (advice-add 'risky-local-variable-p :override #'ignore)
  (global-display-fill-column-indicator-mode t)
  (pixel-scroll-precision-mode 1))

(defun set-buffer-variable-pitch ()
  (interactive)
  (variable-pitch-mode t)
  (setq line-spacing 3)
  (set-face-attribute 'org-table nil :inherit 'fixed-pitch)
  (set-face-attribute 'org-code nil :inherit 'fixed-pitch)
  (set-face-attribute 'org-block nil :inherit 'fixed-pitch)
  ;; investigate: this face does not exist
  ;;(set-face-attribute 'org-block-background nil :inherit 'fixed-pitch)
  )

(use-package outline-minor
  :ensure nil
  :bind
  (:map evil-normal-state-map
        ("zoc" . #'outline-cycle-buffer))
  :hook
  clojure-mode
  scheme-mode
  emacs-lisp-mode)

;;; Org Mode
(use-package org
  :vc (:fetcher "https://git.savannah.gnu.org/git/emacs/org-mode.git" :rev "emacs-sync")
  :preface
  (defun cc/org-local-stuff ()
    (setq-local visual-fill-column-center-text t))
  :after visual-fill-column
  :custom
  (org-babel-load-languages '((emacs-lisp . t)
                              (scheme . t)
                              (shell . t)))
  :hook
  (org-mode . org-indent-mode)
  (org-src-mode . hack-local-variables)
  (org-mode . visual-line-mode)
  (org-mode . set-buffer-variable-pitch)
  :config
  (setq org-directory "~/org")
  ;;(add-to-list 'org-modules 'collector)
  )

(use-package org-roam
  :custom
  (org-roam-directory "~/org/roam")
  :config
  (org-roam-db-autosync-mode))

(use-package consult-notes
  :config
  (consult-notes-org-roam-mode t))

(use-package websocket
  :after org-roam)

(use-package org-roam-ui
  :after org-roam
  :custom
  (org-roam-ui-sync-theme t)
  (org-roam-ui-follow t)
  (org-roam-ui-update-on-save t)
  (org-roam-ui-open-on-start t))

(use-package org-modern
  :hook
  (org-mode . org-modern-mode)
  (org-agenda-finalize . org-modern-agenda))

(use-package org-rainbow-tags
  :hook
  (org-mode . org-rainbow-tags-mode))

;;; Design
(use-package color-theme-modern)
(use-package moe-theme)
(use-package catppuccin-theme
  :custom
  (catppuccin-flavor 'mocha)
  (catppuccin-highlight-matches t)
  (catppuccin-italic-comments t)
  :custom-face
  (font-lock-doc-face ((t (:inherit font-lock-comment-face
                                    :foreground "#fab387"))))
  :config
  ;;(load-theme 'catppuccin)
  )

(use-package unicode-fonts
   :config
    (unicode-fonts-setup))

(set-frame-parameter nil 'alpha-background 90)
(add-to-list 'default-frame-alist '(alpha-background . 90))

(use-package lambda-line
  :vc (:fetcher github :repo "lambda-emacs/lambda-line")
  :custom
  (lambda-line-icon-time t) ;; requires ClockFace font (see below)
  (lambda-line-clockface-update-fontset "ClockFaceRect") ;; set clock icon
  (lambda-line-position 'bottom) ;; Set position of status-line 
  (lambda-line-abbrev t) ;; abbreviate major modes
  (lambda-line-hspace "  ")  ;; add some cushion
  (lambda-line-prefix t) ;; use a prefix symbol
  (lambda-line-prefix-padding nil) ;; no extra space for prefix 
  (lambda-line-status-invert nil)  ;; no invert colors
  (lambda-line-gui-ro-symbol  " ⨂") ;; symbols
  (lambda-line-gui-mod-symbol " ⬤") 
  (lambda-line-gui-rw-symbol  "  ")
  (lambda-line-vc-symbol "  ")
  (lambda-line-space-top +.50)  ;; padding on top and bottom of line
  (lambda-line-space-bottom -.50)
  (lambda-line-symbol-position 0.1) ;; adjust the vertical placement of symbol
  :config
  ;; add evil indicator
  (advice-add 'lambda-line-compose :around
              (lambda (orig-fun status name primary tertiary secondary)
                (funcall orig-fun
                         status
                         (concat name evil-mode-line-tag)
                         primary tertiary secondary)))
  ;; activate lambda-line 
  (lambda-line-mode)
  (lambda-line-clockface-update-fontset "ClockFaceRect")
  (customize-set-variable 'flymake-mode-line-counter-format '("" flymake-mode-line-error-counter flymake-mode-line-warning-counter flymake-mode-line-note-counter ""))
  (customize-set-variable 'flymake-mode-line-format '(" " flymake-mode-line-exception flymake-mode-line-counters))
  ;; set divider line in footer
  (when (eq lambda-line-position 'top)
    (setq-default mode-line-format (list "%_"))
    (setq mode-line-format (list "%_"))))

(use-package lambda-themes
  :vc (:fetcher github :repo "lambda-emacs/lambda-themes")
  :custom
  (lambda-themes-set-italic-comments t)
  (lambda-themes-set-italic-keywords t)
  (lambda-themes-set-variable-pitch t) 
  :config
  ;; load preferred theme 
  (load-theme 'lambda-dark))

;;;; Long line handling

(use-package visual-fill-column
  :custom
  (visual-fill-column-enable-sensible-window-split t)
  :hook
  (prog-mode . visual-line-mode)
  visual-line-mode
  ;; :config
  ;; (add-hook 'prog-mode-hook #'visual-line-mode)
  ;; (add-hook 'visual-line-mode-hook #'visual-fill-column-mode)
  )

(use-package adaptive-wrap
  :config
  (setq-default adaptive-wrap-extra-indent 4)
  ;;(add-hook 'visual-line-mode-hook #'adaptive-wrap-prefix-mode)
  :hook
  (visual-line-mode . adaptive-wrap-prefix-mode))

(use-package password-store)
(use-package password-store-otp)

(use-package pass)

;;; Evil Mode
(use-package evil
  :init
  (setq evil-want-keybinding nil
        evil-emacs-state-tag " 󰯸 "
        evil-normal-state-tag " 󰰓 "
        evil-visual-state-tag " 󰰬 "
        evil-insert-state-tag " 󰰅 "
        evil-motion-state-tag " 󰬔 "
        evil-operator-state-tag " 󰰕 ")
  :config
  (evil-set-leader 'normal (kbd "<SPC>"))
  (evil-set-leader 'normal (kbd "z") t)
  (evil-ex-define-cmd "q" 'delete-frame)
  (evil-mode 1)
  :bind
  (:map evil-normal-state-map
        ("<leader>f" . 'find-file)
        ("<leader>k" . 'kill-buffer)))

(use-package evil-collection
  :after evil
  :ensure t
  :delight evil-collection-unimpaired-mode
  :custom
  (evil-collection-outline-bind-tab-p 1)
  :commands evil-collection-init
  :init
  (evil-collection-init))

;;; Search, Completion, Execution
;;;; Preliminary Packages
(use-package savehist
  :ensure nil
  :init
  (savehist-mode))

(use-package orderless
  :after consult
  :config
  (with-eval-after-load 'eglot
    (setq completion-category-defaults nil))
  (setq completion-styles '(orderless basic)
        completion-category-defaults nil
        completion-category-overrides '((file (styles basic partial-completion)))))

(use-package embark-consult
  :hook
  (embark-collect-mode . consult-preview-at-point-mode)
  :config
  (require 'consult-flymake)
  (require 'consult-xref)
  :custom
  (xref-show-xrefs-function #'consult-xref)
  :bind
     (:map evil-normal-state-map
        ("<leader><SPC>" . 'consult-find)
        ("<leader>gs" . 'consult-eglot-symbols)
        ("<leader>b" . 'consult-buffer)
        ("<leader>gb" . 'consult-project-buffer)
        ("<leader>g/" . 'consult-git-grep)
        ("<leader>/" . 'consult-grep)
        ("/" . 'consult-line))
        ("C-<SPC>" . 'embark-act)
        ("C-M-<return>" . 'embark-bindings))

(use-package wgrep
  :config
  (setq wgrep-auto-save-buffer t))

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

(use-package marginalia
  :commands
  marginalia-mode
  :init
  (marginalia-mode))

(use-package nerd-icons-completion
  :after marginalia
  :commands
  nerd-icons-completion-mode
  :hook
  (marginalia-mode-hook . nerd-icons-completion-marginalia-setup)
  :init
  (nerd-icons-completion-mode))

(use-package which-key
  :commands
  which-key-setup-minibuffer
  :init
  (which-key-setup-minibuffer)
  :config
  (which-key-mode t))

;;;; Code Completion
(use-package cape
  :config
  (require 'cape-char)
  (require 'cape-keyword)
  (defun my/capf ()
    (setq completion-at-point-functions
          (list (cape-capf-super
                 #'tempel-complete
                 #'cape-dabbrev
                 #'cape-file
                 #'cape-dict
                 #'cape-line
                 #'cape-emoji
                 #'cape-keyword))))
  (defun my/eglot-capf ()
    (setq completion-at-point-functions
          (list (cape-capf-super
                 #'eglot-completion-at-point
                 #'tempel-complete
                 #'cape-dabbrev
                 #'cape-file
                 #'cape-dict
                 #'cape-line
                 #'cape-emoji
                 #'cape-keyword))))
  (defun my/geiser-capf ()
    (setq completion-at-point-functions
          (list (apply #'cape-capf-super
                       (append geiser-capf--capfs
                               (list
                                #'tempel-complete
                                #'cape-dabbrev
                                #'cape-file
                                #'cape-dict
                                #'cape-line
                                #'cape-emoji
                                #'cape-keyword))))))
  (advice-add 'eglot-completion-at-point :around #'cape-wrap-buster)
  :hook
  (org-mode . my/capf)
  (prog-mode . my/capf)
  (eglot-managed-mode . my/eglot-capf)
  (geiser-mode . my/geiser-capf))

(defun my/corfu-combined-sort (candidates)
  "Sort CANDIDATES using both display-sort-function and corfu-sort-function."
  (let ((candidates
         (let ((display-sort-func (corfu--metadata-get 'display-sort-function)))
           (if display-sort-func
               (funcall display-sort-func candidates)
             candidates))))
    (if corfu-sort-function
        (funcall corfu-sort-function candidates)
      candidates)))

(use-package corfu
  :custom
  (corfu-cycle t)
  (corfu-preselect 'prompt)
  (corfu-auto t)
  (corfu-scroll-margin 5)
  (corfu-quit-no-match 'separator)
  (evil-collection-corfu-key-themes '(tab-n-go))
  (corfu-popupinfo-delay '(0.1 . 0.5))
  :config
  (setq corfu-sort-override-function #'my/corfu-combined-sort)
  (add-to-list 'savehist-additional-variables 'corfu-history)
  :commands
  global-corfu-mode
  :init
  (require 'corfu-popupinfo)
  (require 'corfu-history)
  (global-corfu-mode)
  (corfu-popupinfo-mode 1)
  (corfu-history-mode 1))

(use-package nerd-icons-corfu
  :after corfu
  :init
  (add-to-list 'corfu-margin-formatters 'nerd-icons-corfu-formatter))

(use-package corfu-terminal
  :if (not (display-graphic-p))
  :after corfu
  :hook
  global-corfu-mode)

(use-package tempel)

(use-package xref-union
  :custom
  (xref-union-excluded-backends (lambda (b) (eq b #'etags--xref-backend)))
  :hook
  cider-mode)

;;; Basic Navigation
(use-package goto-chg
  :bind
  (:map evil-normal-state-map
        ("g," . 'goto-last-change)
        ("g;" . 'goto-last-change-reverse)))

(use-package evil-snipe
  :after evil-easymotion
  :custom
  (evil-snipe-scope 'whole-visible)
  (evil-snipe-repeat-scope 'whole-buffer)
  (evil-snipe-spillover-scope 'whole-buffer)
  (evil-snipe-tab-increment t)
  :commands
  evil-snipe-override-mode
  :init
  (evil-snipe-override-mode 1)
  :hook
  (magit-mode . turn-off-evil-snipe-override-mode)
  ;; See https://github.com/hlissner/evil-snipe/issues/95
  ;; :config
  ;; (evilem-define "gs" 'evil-snipe-repeat
  ;;                :bind ((evil-snipe-scope 'buffer)
  ;;                       (evil-snipe-enable-highlight)
  ;;                       (evil-snipe-enable-incremental-highlight)))
  )

(use-package evil-easymotion
  :after evil
  :config
  (evilem-default-keybindings "<leader>"))

;;; Lisp Navigation and Editing
;;;; Helper Functions
(defun cc/move-sexp-backward ()
  "Move balanced expression (sexp) to the right of point backward one sexp.
Point must be at the beginning of balanced expression (sexp)."
  (interactive)
  (transpose-sexps 1)
  (forward-sexp -2))

(defun cc/move-sexp-forward ()
  "Move balanced expression (sexp) to the right of point forward one sexp.
Point must be at the beginning of balanced expression (sexp)."
  (interactive)
  (forward-sexp 1)
  (transpose-sexps 1)
  (forward-sexp -1))

(defvar last-sexp nil)

(defun cc/clone-sexp ()
  "Clone the sexp right after the cursor."
  (interactive)
  (call-interactively #'mark-sexp)
  (call-interactively #'kill-ring-save)
  (call-interactively #'evil-paste-before)
  (call-interactively #'forward-char)
  (call-interactively #'paredit-newline))

(defun cc/slurp-forward ()
    "Slurps forward when the key is after the closing paren."
  (interactive)
  (call-interactively #'backward-char)
  (call-interactively #'paredit-forward-slurp-sexp))

(defun cc/barf-forward ()
  "Barfs forward even when the key is after the closing paren."
  (interactive)
  (call-interactively #'backward-char)
  (call-interactively #'paredit-forward-barf-sexp))

(defun looking-at-opening-paren ()
  (looking-at (rx (or "(" "{" "["))))

(defun being-past-closing-paren ()
  (looking-back (rx (or ")" "}" "]"))))

;;;; Basic

(use-package paredit
  :config
  ;; (add-hook 'clojure-ts-mode-hook #'paredit-mode)
  ;; (add-hook 'emacs-lisp-mode-hook #'paredit-mode)
  ;; (add-hook 'scheme-mode-hook #'paredit-mode)
  (evil-define-key 'insert paredit-mode-map
    (kbd "r") (conditional-keybind #'looking-at-opening-paren
                                   #'paredit-raise-sexp)
    (kbd "w") (conditional-keybind #'looking-at-opening-paren
                                   #'cc/move-sexp-backward)
    (kbd "s") (conditional-keybind #'looking-at-opening-paren
                                   #'cc/move-sexp-forward)
    (kbd "c") (conditional-keybind #'looking-at-opening-paren
                                   #'cc/clone-sexp)
    (kbd ">") (conditional-keybind #'being-past-closing-paren
                                   #'cc/slurp-forward)
    (kbd "<") (conditional-keybind #'being-past-closing-paren
                                   #'cc/barf-forward))
  :hook
  clojure-ts-mode
  clojure-mode
  emacs-lisp-mode
  scheme-mode)

;;;; Visual Aid
;; (use-package rainbow-delimiters
;;   :hook
;;   emacs-lisp-mode
;;   scheme-mode)

;;; Programming
(use-package editorconfig
  :delight editorconfig-mode
  :commands
  editorconfig-mode
  :init
  (editorconfig-mode 1))

(use-package flymake
  :ensure nil
  :delight '(:eval (cons "  " (flymake--mode-line-counters))))

(use-package eglot
  :ensure nil
  :custom
  (eglot-connect-timeout 90)
  (eglot-autoshutdown t)
  (eglot-report-progress t)
  :config
  ;;(add-to-list 'eglot-server-programs '(scheme-mode . ("chicken-lsp-server")))
  (setq-default eglot-workspace-configuration
                '((clojure-lsp (maxCompletions . 300))))
  :hook
  (clojure-mode . eglot-ensure)
  (eglot-managed-mode . (lambda ()
                          (add-hook 'before-save-hook
                                    (lambda ()
                                      (call-interactively #'eglot-format-buffer))
                                    nil 'local)))
  (eglot-managed-mode . eglot-inlay-hints-mode))

(use-package consult-eglot
  :after (consult eglot))

(use-package dape
  :custom
  (dape-buffer-window-arrangement 'gud)
  :hook
  (kill-emacs . dape-breakpoint-save)
  (after-init . dape-breakpoint-load)
  (dape-compile . kill-buffer)
  (dape-display-source . pulse-momentary-highlight-one-line))

;;;; Clojure
(use-package clojure-mode
  :preface
  (defun embark-eglot-rename (from to)
    "Renames the symbol at point."
    (interactive "sRename: \nsRename %s to: ")
    (funcall-interactively #'eglot-rename to))
  :delight ""
  :after (embark cider)
  :config
  (defvar-keymap embark-clj-identifier-map
    :parent embark-identifier-map
    "c" #'embark-eglot-rename)
  (add-to-list 'embark-keymap-alist '(identifier . embark-clj-identifier-map))
  :hook
  (clojure-mode . (lambda ()
                    (setq-local prettify-symbols-alist
                                '(("fn" . "λ")
                                  ("comp" . "∘")
                                  ("and" . "∧")
                                  ("or" . "∨")
                                  ("not" . "¬"))))))

(use-package cider
  ;;:elpaca (:host github :repo "clojure-emacs/cider" :tag "v1.12.0")
  :delight (cider-mode '(:eval (concat "  [" (cider--modeline-info) "]")))
  :config
  (evil-define-key 'normal 'cider-mode-map
    (kbd "<localleader>ce") #'cider-eval-sexp-at-point))

;;;; Scheme

(use-package geiser
  :custom
  (geiser-chicken-match-limit 200)
  :config
  (defalias 'run-geiser 'geiser))

;; (use-package paren-face
;;   :hook
;;   scheme-mode
;;   emacs-lisp-mode
;;   clojure-ts-mode
;;   ;; :config
;;   ;; (add-hook 'scheme-mode-hook #'paren-face-mode)
;;   ;; (add-hook 'emacs-lisp-mode-hook #'paren-face-mode)
;;   ;; (add-hook 'clojure-ts-mode-hook #'paren-face-mode)
;;   )

(use-package highlight-parentheses
  :custom
  (highlight-parentheses-highlight-adjacent t)
  (highlight-parentheses-colors '("yellow" "light gray" "dark gray" "dim gray"))
  :hook
  prog-mode
  ;; :config
  ;; (add-hook 'prog-mode-hook #'highlight-parentheses-mode)
  )

;;;;; Chicken Scheme
(use-package scheme
  :ensure nil
  :hook
  (scheme-mode . eglot-ensure)
  (scheme-mode . (lambda ()
                   (setq-local prettify-symbols-alist
                               '(("lambda" . "λ")
                                 ("compose" . "∘")
                                 ("and" . "∧")
                                 ("or" . "∨")
                                 ("not" . "¬"))))))

(defun flymake-chicken-init ()
  (add-hook flymake-diagnostic-functions
            flymake-chicken-backend nil t)
  (flymake-mode))

(use-package geiser-chicken)

;;;;; Guile

(use-package geiser-guile
  :config
  (when (executable-find "guix")
    (add-to-list 'geiser-guile-load-path
                 (expand-file-name "~/.config/guix/current/share/guile/site/3.0"))))

;; (use-package flymake-chicken
;;   :hook
;;   ((scheme-mode . flymake-chicken-init)
;;    (scheme-mode . flymake-mode))
;;   :custom
;;   (flycheck-global-modes '(not scheme-mode))
;;   :config
;;   (add-hook 'flymake-diagnostic-functions #'flymake-chicken-backend nil t))

;;; Other Languages

(use-package zig-mode
  :hook
  (zig-mode . eglot-ensure)
  :mode ("\\.zig\\'" . zig-mode))

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

;; (use-package lsp-tailwindcss
;;   :init
;;   (setq lsp-tailwindcss-add-on-mode t
;;         lsp-tailwindcss-experimental-class-regex ["\"([^\"]*)\""])
;;   :config
;;   (add-to-list 'lsp-tailwindcss-major-modes 'clojurescript-ts-mode)
;;   (add-to-list 'lsp-tailwindcss-major-modes 'clojurec-ts-mode))

(use-package dhall-mode
  :mode "\\.dhall\'"
  :hook
  ((dhall-mode . lsp)))

;;; Version Control

;;;; Git

;; The following snippet is a convenience function for git-commit to add the ticket number, if found
;; in the branch name, to the commit message.
(defun add-git-commit-ticket-id-from-branch ()
  "A git-commit-mode-hook which inserts the first consecutive
   sequence of at least 3 digits in the current branch name at
   the beginning of the commit message buffer (in square
   brackets)."
  (when-let ((branch (magit-get-current-branch)))
    (when (string-match "\\([[:digit:]]\\{3,\\}\\)" branch)
      (let ((prefix (format "[T-%s] \n" (match-string 1 branch))))
        (goto-char (point-min))
        (insert prefix)
        (forward-char -1)))))

 (add-hook 'git-commit-mode-hook 'add-git-commit-ticket-id-from-branch)

;; Magit requires 'transient' >= 0.5.0, but due to bad defaults, Emacs' package manager refuses to
;; upgrade this and other built-in packages to higher releases from GNU Elpa.
(use-package transient
  :init
  (progn (unload-feature 'transient t)
         (require 'transient)))

;; To fix this, you have to add this to your init file:
;; (setq package-install-upgrade-built-in t)
;; You must also make sure the updated version is loaded, by evaluating the `progn` form below.
(use-package magit
  :after magit-popup
  :init
  (progn (unload-feature 'transient t)
         (require 'transient)))

(use-package hl-todo)

(use-package magit-todos
  :after (magit hl-todo)
  :hook
  (magit-mode . magit-todos-mode))

(use-package magit-popup)

(use-package forge
  :after magit
  :custom
  (forge-alist '(("github.com" "api.github.com" "github.com" forge-github-repository)
                 ("gitlab.com" "gitlab.com/api/v4" "gitlab.com" forge-gitlab-repository)
                 ("dev.bevuta.com" "dev.bevuta.com/api/v4" "dev.bevuta.com" forge-gitlab-repository)
                 ("codeberg.org" "codeberg.org/api/v1" "codeberg.org" forge-gitea-repository)
                 ("forgejo.lyrion.ch:7920" "forgejo.lyrion.ch/api/v1" "forgejo.lyrion.ch" forge-gitea-repository)
                 ("git.sr.ht" nil "git.sr.ht" forge-srht-repository)))
  :config
  (advice-add 'magit :after (lambda (&rest _args)
                              (call-interactively #'forge-pull))))

(use-package git-gutter
  :hook
  prog-mode
  ;; :config
  ;; (add-hook 'prog-mode-hook #'git-gutter-mode)
  )
;;; File Formats
;;;; Beancount
(use-package beancount
  :vc (:fetcher github :repo "beancount/beancount-mode"))
;;;; Asciidoc
(use-package adoc-mode
  :hook
  (adoc-mode . visual-line-mode)
  (adoc-mode . (lambda () (setq-local visual-fill-column-center-text t))))

;;; LaTeX
;; https://github.com/politza/pdf-tools/#known-problems
(add-hook 'TeX-after-compilation-finished-functions
          #'TeX-revert-document-buffer)

;;; Communication

;;;; E-Mail

(use-package gnus
  :custom
  (message-send-mail-function 'message-send-mail-with-sendmail)
  (sendmail-program "msmtp")
  (message-sendmail-f-is-evil t)
  (message-sendmail-extra-arguments '("--read-envelope-from")))

(use-package piem
  :vc (piem :url "https://git.kyleam.com/piem"))

(use-package git-email
  :vc (:fetcher codeberg :repo "martianh/git-email")
  :after (magit piem)
  :init
  (require 'git-email-magit)
  (require 'git-email-gnus)
  (require 'git-email-piem))

(use-package notmuch)

(use-package consult-notmuch)

;;;; IRC
(use-package rcirc
  :ensure nil
  :after password-store
  :custom
  (rcirc-server-alist
   `(("liberachat.irc.lyrion.ch"
      :server-alias "irc.libera.chat"
      :port 6697
      :nick "zilti"
      :full-name "Daniel Ziltener"
      :user-name "zilti/irc.libera.chat"
      :password ,(password-store-get "Privat/Soju")
      :encryption tls
      :channels ("#chicken")))
   `(("oftc.irc.lyrion.ch"
      :server-alias "irc.oftc.net"
      :port 6697
      :nick "zilti"
      :full-name "Daniel Ziltener"
      :user-name "zilti/irc.oftc.net"
      :password ,(password-store-get "Privat/Soju")
      :encryption tls
      :channels ()))))


;;; Wrapping Up
;; (use-package envrc
;;   :config
;;   (envrc-global-mode))

(use-package direnv
  :config
  (direnv-mode))

(provide 'init)
;;; init.el ends here