nixos/home/emacs/init.el

(setq custom-file (locate-user-emacs-file "custom.el"))
(when (and custom-file (file-exists-p custom-file))
  (load custom-file nil 'nomessage))

(setq user-full-name "Evie Litherland-Smith"
      user-mail-address "evie@xenia.me.uk"
      use-short-answers t
      load-prefer-newer t
      indent-tabs-mode nil
      even-window-sizes nil
      global-auto-revert-non-file-buffers t
      dired-auto-revert-buffer t
      dired-dwim-target t
      tab-always-indent 'complete
      completion-cycle-threshold 3
      completions-detailed t
      xref-show-definitions-function #'xref-show-definitions-completing-read
      kill-do-not-save-duplicates t
      auto-window-vscroll nil
      fast-but-imprecise-scrolling t
      scroll-conservatively 101
      scroll-margin 0
      scroll-preserve-screen-position 1)

(set-default-coding-systems 'utf-8)
(set-terminal-coding-system 'utf-8)
(set-keyboard-coding-system 'utf-8)

(global-auto-revert-mode +1)
(delete-selection-mode)
(recentf-mode -1)


(keymap-global-set "M-#" #'dictionary-lookup-definition)

;; turn on spell checking, if available.
(when (and (require 'ispell nil :noerror) (executable-find ispell-program-name))
  (add-hook 'text-mode-hook #'flyspell-mode)
  (add-hook 'prog-mode-hook #'flyspell-prog-mode))

;; Make shebang (#!) file executable when saved
(add-hook 'after-save-hook #'executable-make-buffer-file-executable-if-script-p)

(setq backup-directory-alist '(("." . "~/.local/state/emacs/backups"))
      tramp-backup-directory-alist backup-directory-alist
      tramp-auto-save-directory (cdr (assoc "." tramp-backup-directory-alist)))

(when (require 'package nil :noerror)
  (add-to-list 'package-archives '("stable" . "https://stable.melpa.org/packages/"))
  (add-to-list 'package-archives '("melpa" . "https://melpa.org/packages/"))

  (setq package-archive-priorities '(("gnu" . 99)
                                     ("nongnu" . 80)
                                     ("stable" . 70)
                                     ("melpa" . 0))))

(when (require 'auth-source nil :noerror)
  (setq auth-sources '("secrets:Login"))
  (when (require 'auth-source-pass nil :noerror)
    (auth-source-pass-enable)))

;; Make `describe-*' screens more helpful
(use-package helpful
  :ensure t
  :bind (("<remap> <describe-command>" . helpful-command)
         ("<remap> <describe-function>" . helpful-callable)
         ("<remap> <describe-key>" . helpful-key)
         ("<remap> <describe-symbol>" . helpful-symbol)
         ("<remap> <describe-variable>" . helpful-variable)
         ("C-h F" . helpful-function)
         :map helpful-mode-map
         ("<remap> <revert-buffer>" . helpful-update)))

;; Bind extra `describe-*' commands
(keymap-global-set "C-h K" #'describe-keymap)

(use-package ibuffer
  :ensure t
  :bind (("C-c b" . ibuffer)))

(use-package ibuffer-project
  :ensure t
  :after ibuffer
  :hook ((ibuffer . (lambda ()
                      (setq ibuffer-filter-groups (ibuffer-project-generate-filter-groups))
                      (unless (eq ibuffer-sorting-mode 'project-file-relative)
                        (ibuffer-do-sort-by-project-file-relative))))))

(use-package link-hint
  :ensure t
  :bind (("C-c l o" . link-hint-open-link)
         ("C-c l c" . link-hint-copy-link)
         ("C-c l C-o" . link-hint-open-all-link)
         ("C-c l C-c" . link-hint-copy-all-link)))

(use-package avy
  :ensure t
  :bind (("C-c j w" . avy-goto-word-0)
         ("C-c j c" . avy-goto-char)
         ("C-c j l" . avy-goto-line)))

(setq use-dialog-box nil
      truncate-lines nil
      truncate-partial-width-windows nil)

(menu-bar-mode -1)
(tool-bar-mode -1)
(scroll-bar-mode -1)
(tab-bar-mode -1)
(global-display-line-numbers-mode -1)
(global-prettify-symbols-mode +1)
(global-visual-line-mode +1)

(use-package which-key
  :ensure t
  :config (which-key-mode +1))

(use-package page-break-lines
  :ensure t
  :config (global-page-break-lines-mode +1))

;; add visual pulse when changing focus, like beacon but built-in
;; from from https://karthinks.com/software/batteries-included-with-emacs/
(defun pulse-line (&rest _)
  "Pulse the current line."
  (pulse-momentary-highlight-one-line (point)))

(dolist (command '(scroll-up-command
                   scroll-down-command
                   recenter-top-bottom
                   other-window))
  (advice-add command :after #'pulse-line))

(set-frame-parameter nil 'alpha-background 80)
(set-frame-font "Fira Code-12")

;; Theme
(use-package modus-themes
  :ensure t
  :custom (modus-themes-disable-other-themes t)
  :config (modus-themes-load-theme 'modus-vivendi-tinted))

;; Nerd-Icons modes
(use-package nerd-icons
  :ensure t
  :config (nerd-icons-set-font "Symbols Nerd Font Mono"))

(use-package nerd-icons-dired
  :ensure t
  :hook (dired-mode))

(use-package nerd-icons-ibuffer
  :ensure t
  :hook (ibuffer-mode))

(use-package nerd-icons-completion
  :ensure t
  :config (nerd-icons-completion-mode +1))

(use-package nerd-icons-corfu
  :ensure t
  :after corfu
  :config (add-to-list 'corfu-margin-formatters #'nerd-icons-corfu-formatter))

(keymap-global-set "C-c i n" #'nerd-icons-insert)

(use-package winner
  :ensure t
  :demand
  :bind (("C-c w u" . winner-undo)
         ("C-c w r" . winner-redo))
  :config
  (winner-mode))

(use-package ediff
  :bind (("C-c d f" . ediff-files)
         ("C-c d b" . ediff-buffers)
         ("C-c d 3 f" . ediff-files3)
         ("C-c d 3 b" . ediff-buffers3))
  :custom
  (ediff-window-setup-function #'ediff-setup-windows-plain))

(use-package ligature
  :ensure t
  :config
  ;; Enable the "www" ligature in every possible major mode
  (ligature-set-ligatures 't '("www"))
  ;; Enable traditional ligature support in eww-mode, if the
  ;; `variable-pitch' face supports it
  (ligature-set-ligatures 'eww-mode '("ff" "fi" "ffi"))
  ;; Enable all Cascadia and Fira Code ligatures in programming modes
  (ligature-set-ligatures '(prog-mode org-mode)
                          '(;; == === ==== => =| =>>=>=|=>==>> ==< =/=//=// =~
                            ;; =:= =!=
                            ("=" (rx (+ (or ">" "<" "|" "/" "~" ":" "!" "="))))
                            ;; ;; ;;;
                            (";" (rx (+ ";")))
                            ;; && &&&
                            ("&" (rx (+ "&")))
                            ;; !! !!! !. !: !!. != !== !~
                            ("!" (rx (+ (or "=" "!" "\." ":" "~"))))
                            ;; ?? ??? ?:  ?=  ?.
                            ("?" (rx (or ":" "=" "\." (+ "?"))))
                            ;; %% %%%
                            ("%" (rx (+ "%")))
                            ;; |> ||> |||> ||||> |] |} || ||| |-> ||-||
                            ;; |->>-||-<<-| |- |== ||=||
                            ;; |==>>==<<==<=>==//==/=!==:===>
                            ("|" (rx (+ (or ">" "<" "|" "/" ":" "!" "}" "\]"
                                            "-" "=" ))))
                            ;; \\ \\\ \/
                            ("\\" (rx (or "/" (+ "\\"))))
                            ;; ++ +++ ++++ +>
                            ("+" (rx (or ">" (+ "+"))))
                            ;; :: ::: :::: :> :< := :// ::=
                            (":" (rx (or ">" "<" "=" "//" ":=" (+ ":"))))
                            ;; // /// //// /\ /* /> /===:===!=//===>>==>==/
                            ("/" (rx (+ (or ">"  "<" "|" "/" "\\" "\*" ":" "!"
                                            "="))))
                            ;; .. ... .... .= .- .? ..= ..<
                            ;; ("\." (rx (or "=" "-" "\?" "\.=" "\.<" (+ "\."))))
                            ;; -- --- ---- -~ -> ->> -| -|->-->>->--<<-|
                            ("-" (rx (+ (or ">" "<" "|" "~" "-"))))
                            ;; *> */ *)  ** *** ****
                            ("*" (rx (or ">" "/" ")" (+ "*"))))
                            ;; www wwww
                            ("w" (rx (+ "w")))
                            ;; <> <!-- <|> <: <~ <~> <~~ <+ <* <$ </  <+> <*>
                            ;; <$> </> <|  <||  <||| <|||| <- <-| <-<<-|-> <->>
                            ;; <<-> <= <=> <<==<<==>=|=>==/==//=!==:=>
                            ;; << <<< <<<<
                            ("<" (rx (+ (or "\+" "\*" "\$" "<" ">" ":" "~"  "!"
                                            "-"  "/" "|" "="))))
                            ;; >: >- >>- >--|-> >>-|-> >= >== >>== >=|=:=>>
                            ;; >> >>> >>>>
                            (">" (rx (+ (or ">" "<" "|" "/" ":" "=" "-"))))
                            ;; #: #= #! #( #? #[ #{ #_ #_( ## ### #####
                            ("#" (rx (or ":" "=" "!" "(" "\?" "\[" "{" "_(" "_"
                                         (+ "#"))))
                            ;; ~~ ~~~ ~=  ~-  ~@ ~> ~~>
                            ("~" (rx (or ">" "=" "-" "@" "~>" (+ "~"))))
                            ;; __ ___ ____ _|_ __|____|_
                            ("_" (rx (+ (or "_" "|"))))
                            ;; The few not covered by the regexps.
                            "{|"  "[|"  "]#"  "(*"  "}#"  "$>"  "^="))
  (ligature-set-ligatures 'prog-mode
                          '(;; Fira code: 0xFF 0x12
                            ("0" (rx (and "x" (+ (in "A-F" "a-f" "0-9")))))
                            ;; Fira code:
                            "Fl"  "Tl"  "fi"  "fj"  "fl"  "ft"))
  ;; Enables ligature checks globally in all buffers. You can also do it
  ;; per mode with `ligature-mode'.
  (global-ligature-mode t))

(line-number-mode +1)
(column-number-mode +1)
(size-indication-mode +1)
(display-time-mode -1)
(display-battery-mode -1)

(use-package doom-modeline
  :ensure t
  :custom
  (doom-modeline-icon t)
  (doom-modeline-buffer-encoding 'nondefault)
  (doom-modeline-enable-word-count t)
  (doom-modeline-continuous-word-count-modes
   '(org-mode markdown-mode gfm-mode))
  :config
  (doom-modeline-mode +1))

(use-package darkroom
  :ensure t
  :defer t)

(use-package zone
  :ensure t
  :config (zone-when-idle (* 60 5)))

(setq org-directory "~/Org"
      org-default-notes-file (expand-file-name "notes.org" org-directory)
      org-pretty-entities-include-sub-superscripts t
      org-pretty-entities-include-sub-superscripts t
      org-tags-column 0
      org-outline-path-complete-in-steps nil
      org-return-follows-link t
      org-mouse-1-follows-link t
      org-link-descriptive t
      org-refile-use-outline-path t
      org-refile-allow-creating-parent-nodes t
      org-refile-use-outline-path 'file
      org-refile-targets '((nil :maxlevel . 3)
                           (org-agenda-files :maxlevel . 3)))

;; Visually indent org-mode files to a given header level
(add-hook 'org-mode-hook #'org-indent-mode)

(use-package org
  :ensure t
  :custom
  (org-babel-load-languages '((emacs-lisp . t)
                              (python . t))))

(keymap-global-set "C-c o ." #'calendar)
(keymap-global-set "C-c o e" #'org-edit-src-code)
(keymap-global-set "C-c o a" #'org-agenda)
(keymap-global-set "C-c o n" #'org-capture)
(keymap-global-set "C-c o l" #'org-capture-goto-last-stored)

(use-package org-modern
  :ensure t
  :hook ((org-mode . org-modern-mode)
         (org-agenda-finalize . org-modern-agenda))
  :custom
  (org-modern-tag nil))

(setq org-agenda-span 'week
      org-agenda-start-on-weekday 1
      org-agenda-files (list (expand-file-name org-directory)
                             (expand-file-name "journal" org-directory)
                             (expand-file-name "projects" org-directory))
      org-agenda-sticky t
      org-agenda-window-setup 'current-window
      org-agenda-prefix-format '((agenda . " %-12:c%?-12t% s")
                                 (todo . " %-12:c")
                                 (tags . " %-12:c")
                                 (search . " %-12:c")))

(use-package org-journal
  :bind (("C-c o j" . org-journal-new-entry))
  :custom
  (org-journal-dir (expand-file-name "journal" org-directory))
  (org-journal-file-type 'monthly)
  (org-journal-file-format "%Y-%m.org"))

(setq org-capture-templates
      '(("n" "Note" entry
         (file+headline "inbox.org" "Note")
         "* %?"
         :prepend t
         :empty-lines 1)
        ("t" "Task" entry
         (file+headline "inbox.org" "Task")
         "* TODO %?"
         :prepend t
         :empty-lines 1)
        ("m" "Email Workflow")
        ("mf" "Follow Up" entry (file+olp "mail.org" "Follow Up")
         "* TODO Follow up with %:fromname on %a\nSCHEDULED:%t\nDEADLINE: %(org-insert-time-stamp (org-read-date nil t \"+2d\"))\n\n%i")
        ("mr" "Read Later" entry (file+olp "mail.org" "Read Later")
         "* TODO Read %:subject\nSCHEDULED:%t\nDEADLINE: %(org-insert-time-stamp (org-read-date nil t \"+2d\"))\n\n%a\n\n%i")
        ))

(let ((citar-base-directory "~/References"))
  (setq citar-bibliography (expand-file-name "main.bib" citar-base-directory)
        citar-library-paths (list (expand-file-name "library" citar-base-directory))
        citar-notes-paths (list (expand-file-name "notes" citar-base-directory))))
(use-package citar
  :ensure t
  :bind (("C-c o c o" . citar-open))
  :config
  (defvar citar-indicator-files-icons
    (citar-indicator-create
     :symbol (nerd-icons-octicon
              "nf-oct-file"
              :face 'nerd-icons-green
              :v-adjust -0.1)
     :function #'citar-has-files
     :padding "  " ; need this because the default padding is too low for these icons
     :tag "has:files"))
  (defvar citar-indicator-links-icons
    (citar-indicator-create
     :symbol (nerd-icons-octicon
              "nf-oct-link"
              :face 'nerd-icons-orange
              :v-adjust 0.01)
     :function #'citar-has-links
     :padding "  "
     :tag "has:links"))
  (defvar citar-indicator-notes-icons
    (citar-indicator-create
     :symbol (nerd-icons-octicon
              "nf-oct-note"
              :face 'nerd-icons-blue
              :v-adjust -0.3)
     :function #'citar-has-notes
     :padding "    "
     :tag "has:notes"))
  (defvar citar-indicator-cited-icons
    (citar-indicator-create
     :symbol (nerd-icons-octicon
              "nf-oct-circle"
              :face 'nerd-icon-green)
     :function #'citar-is-cited
     :padding "  "
     :tag "is:cited"))
  (setq citar-indicators (list citar-indicator-files-icons
                               citar-indicator-links-icons
                               citar-indicator-notes-icons
                               citar-indicator-cited-icons)))

(use-package khalel
  :demand
  :hook (org-agenda-mode . khalel-import-events)
  :config
  (khalel-add-capture-template "e")
  :custom
  (khalel-import-org-file (expand-file-name "calendar.org" org-directory))
  (khalel-import-org-file-read-only nil)
  (khalel-import-org-file-confirm-overwrite nil)
  (khalel-import-start-date "-30d")
  (khalel-import-end-date "+30d"))

;; Disable auto-pairing of "<" in org-mode with electric-pair-mode
(defun crafted-org-enhance-electric-pair-inhibit-predicate ()
  "Disable auto-pairing of \"<\" in `org-mode' when using `electric-pair-mode'."
  (when (and electric-pair-mode (eql major-mode #'org-mode))
    (setq-local electric-pair-inhibit-predicate
                `(lambda (c)
                   (if (char-equal c ?<)
                       t
                     (,electric-pair-inhibit-predicate c))))))

;; Add hook to both electric-pair-mode-hook and org-mode-hook
;; This ensures org-mode buffers don't behave weirdly,
;; no matter when electric-pair-mode is activated.
(add-hook 'electric-pair-mode-hook #'crafted-org-enhance-electric-pair-inhibit-predicate)
(add-hook 'org-mode-hook #'crafted-org-enhance-electric-pair-inhibit-predicate)

(use-package tramp
  :defer t
  :config
  (add-to-list 'tramp-remote-path 'tramp-own-remote-path))

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

(use-package apheleia
  :ensure t
  :defer nil
  :bind (("C-c c f" . apheleia-format-buffer))
  :custom (apheleia-remote-algorithm 'local)
  :config (apheleia-global-mode +1))

(use-package treesit-auto
  :config (global-treesit-auto-mode +1))

(use-package direnv
  :ensure t
  :custom (direnv-always-show-summary nil)
  :config (direnv-mode +1))

(use-package eldoc
  :ensure t
  :custom
  (eldoc-echo-area-display-truncation-message nil)
  (eldoc-echo-area-prefer-doc-buffer t)
  (eldoc-echo-area-use-multiline-p nil))

(use-package eglot
  :ensure t
  :bind (("C-c c e" . eglot)
         ("C-c c a" . eglot-code-actions))
  :hook ((nix-mode
          fortran-mode
          shell-script-mode
          lua-mode
          python-mode
          python-ts-mode
          rust-mode
          rust-ts-mode) . eglot-ensure)
  :custom
  (eglot-extend-to-xref t)
  (eglot-autoshutdown t)
  (eglot-autoreconnect nil))

(use-package flymake
  :ensure t
  :bind (("C-c C-." . flymake-goto-next-error)
         ("C-c C-," . flymake-goto-prev-error)))

(use-package flymake-popon
  :ensure t
  :after flymake
  :config
  (global-flymake-popon-mode +1))

(setq project-switch-use-entire-map t
      project-switch-commands '((project-find-file "Find file")
                                (project-find-regexp "Find regexp")
                                (project-find-dir "Find directory")
                                (project-vc-dir "VC-Dir")
                                (project-eshell "Eshell")))

(use-package magit
  :ensure t
  :bind (("C-c g g" . magit-status)
         ("C-c g d" . magit-dispatch)
         ("C-c g f" . magit-file-dispatch)
         ("C-c g p" . magit-pull)
         ("C-c g P" . magit-push)
         ("<remap> <project-vc-dir" . magit-project-status)
         :map project-prefix-map
         ("m" . magit-project-status))
  :custom
  (magit-define-global-key-bindings nil)
  (magit-clone-default-directory "~/Projects/")
  (magit-commit-show-diff nil)
  (magit-commit-diff-inhibit-same-window t))

(use-package vertico
  :ensure t
  :custom
  (vertico-cycle t)
  :init
  (vertico-mode)
  :config
  (require 'vertico-directory))

(use-package marginalia
  :ensure t
  :custom
  (marginalia-annotators '(marginalia-annotators-heavy
                           marginalia-annotators-light
                           nil))
  :config (marginalia-mode +1))

(use-package orderless
  :ensure t
  :custom
  (completion-styles '(orderless basic))
  (completion-category-defaults nil)
  (completion-category-overrides '((file (styles . (partial-completion))))))

(use-package corfu
  :ensure t
  :custom
  (corfu-cycle t)
  (corfu-auto t)
  (corfu-auto-prefix 3)
  (corfu-quit-no-match 'separator)
  (corfu-quit-at-boundary 'separator)
  (corfu-preselect 'directory)
  :bind (:map corfu-map
              ("RET" . nil))
  :init
  (global-corfu-mode +1)
  :config
  (when (require 'corfu-popupinfo nil :noerror)
    (corfu-popupinfo-mode +1)
    (keymap-set corfu-map "M-p" #'corfu-popupinfo-scroll-down)
    (keymap-set corfu-map "M-n" #'corfu-popupinfo-scroll-up)
    (keymap-set corfu-map "M-d" #'corfu-popupinfo-toggle))

  (defun corfu-enable-always-in-minibuffer ()
    "Enable Corfu in the minibuffer if Vertico is not active."
    (unless (or (bound-and-true-p vertico--input)
                (eq (current-local-map) read-passwd-map))
      (setq-local corfu-echo-delay nil ;; Disable automatic echo and popup
                  corfu-auto nil ;; Enable/disable auto completion
                  corfu-popupinfo-delay nil)
      (corfu-mode +1)))
  (add-hook 'minibuffer-setup-hook #'corfu-enable-always-in-minibuffer 1)

  (add-hook 'eshell-mode-hook
            (lambda ()
              (setq-local corfu-auto nil)
              (corfu-mode)))

  (defun corfu-send-shell (&rest _)
    "Send completion candidate when inside comint/eshell."
    (cond
     ((and (derived-mode-p 'eshell-mode) (fboundp 'eshell-send-input))
      (eshell-send-input))
     ((and (derived-mode-p 'comint-mode)  (fboundp 'comint-send-input))
      (comint-send-input))))

  (advice-add #'corfu-insert :after #'corfu-send-shell))

(use-package cape
  :ensure t
  :config
  (add-to-list 'completion-at-point-functions #'cape-file)
  (add-to-list 'completion-at-point-functions #'cape-dabbrev)
  (advice-add 'pcomplete-completions-at-point :around #'cape-wrap-silent)
  (advice-add 'pcomplete-completions-at-point :around #'cape-wrap-purify))

(use-package consult
  :ensure t
  :bind (("C-s" . consult-line)
         ("<remap> <imenu>" . consult-imenu )
         ("<remap> <switch-to-buffer>" . consult-buffer)
         ("<remap> <project-switch-to-buffer>" . consult-project-buffer)
         ("<remap> <org-goto>" . consult-org-heading)
         ("C-c s f" . consult-fd)
         ("C-c s g" . consult-ripgrep)
         ("C-c s e" . consult-flymake)
         ("C-c s i" . consult-info)
         ("C-c s t" . consult-theme)
         :map minibuffer-local-map
         ("C-r" . consult-history))
  :config (setq completion-in-region-function #'consult-completion-in-region))

(use-package consult-yasnippet
  :ensure t
  :after consult
  :commands (consult-yasnippet))

(use-package consult-eglot
  :ensure t
  :after consult
  :requires eglot
  :commands (consult-eglot-symbols)
  :bind (("C-c s s" . consult-eglot-symbols)))

(use-package embark
  :ensure t
  :bind (("<remap> <describe-bindings>" . embark-bindings)
         ("C-." . embark-act))
  :config (setq prefix-help-command #'embark-prefix-help-command))

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

(use-package yasnippet
  :ensure t
  :hook ((prog-mode org-mode) . yas-minor-mode))

(use-package yasnippet-snippets
  :ensure t
  :after yasnippet
  :config (yas-reload-all))

(use-package yasnippet-capf
  :ensure t
  :after cape
  :config
  (add-to-list 'completion-at-point-functions #'yasnippet-capf))

(use-package aggressive-indent
  :ensure t
  :hook (elisp-mode
         lisp-mode
         lisp-data-mode
         rust-mode))

(defun my/enable-fill-column (col)
  "Set and enable fill column"
  (set-fill-column col)
  (display-fill-column-indicator-mode +1))

(add-hook 'python-mode-hook (lambda () (my/enable-fill-column 88)))

(setq gnus-select-method '(nnrss "http://www.fsf.org/static/fsforg/rss/news.xml"))

(setq sendmail-program (executable-find "msmtp")
      send-mail-function #'smtpmail-send-it
      message-sendmail-f-is-evil t
      message-sendmail-extra-arguments '("--read-envelope-from")
      message-send-mail-function #'message-send-mail-with-sendmail
      message-auto-save-directory nil
      message-kill-buffer-on-exit t
      mail-user-agent 'mu4e-user-agent
      read-mail-command 'mu4e)

(use-package mu4e
  :bind (("C-c o m" . mu4e))
  :custom
  (mu4e-completing-read-function #'completing-read-default)
  (mu4e-split-view 'horizontal)
  (mu4e-attachment-dir "~/Downloads")
  (mu4e-get-mail-command "mbsync -a")
  (mu4e-update-interval (* 5 60)) ; Every 5 minutes
  (mu4e-headers-auto-update nil)
  (mu4e-sent-messages-behavior 'sent)
  (mu4e-change-filenames-when-moving t)
  (mu4e-context-policy 'ask-if-none)
  (mu4e-compose-context-policy 'ask-if-none)
  (mu4e-search-full nil)
  (mu4e-search-include-related t)
  (mu4e-search-threads t)
  (mu4e-search-skip-duplicates t)
  (mu4e-maildir-shortcuts '((:maildir "/Proton/Inbox/" :key ?p)
                            (:maildir "/iCloud/Inbox/" :key ?i)
                            (:maildir "/Outlook/Inbox/" :key ?w)))
  (mu4e-bookmarks '((:name "Unread messages" :query "flag:unread AND NOT flag:trashed" :key ?u :favorite t)
                    (:name "Today's messages" :query "date:today..now" :key ?t)
                    (:name "Flagged messages" :query "flag:flagged" :key ?f)
                    (:name "Last 7 days" :query "date:7d..now" :hide-unread t :key ?w)))
  (mu4e-headers-fields
   '((:human-date . 8)
     (:from . 30)
     (:subject . 72)
     (:flags)))
  (mu4e-headers-visible-flags
   '(draft
     flagged
     unread
     passed
     replied
     trashed
     attach
     calendar
     encrypted
     signed
     list
     personal))
  :config
  (setq
   mu4e-use-fancy-chars t
   mu4e-modeline-all-read '("R:" . "󰑇 ")
   mu4e-modeline-all-clear '("C:" . "󰚭 ")
   mu4e-modeline-new-items '("N:" . "󰎔 ")
   mu4e-modeline-unread-items '("U:" . "󰶊 ")
   mu4e-search-full-label '("F" . "󱊖 ")
   mu4e-search-hide-label '("H" . "󰘓 ")
   mu4e-search-related-label '("R" . "󰻧 ")
   mu4e-search-skip-duplicates-label '("D" . "󰆑 ")
   mu4e-search-threaded-label'("T" . "󱇫 ")
   mu4e-headers-draft-mark '("D" . "󰻣 ")
   mu4e-headers-flagged-mark '("F" . "󰈻 ")
   mu4e-headers-unread-mark '("u" . "󰶊 ")
   mu4e-headers-passed-mark '("P" . "󱃜 ")
   mu4e-headers-replied-mark '("R" . "󱃚 ")
   mu4e-headers-trashed-mark '("T" . "󰩹 ")
   mu4e-headers-attach-mark '("a" . "󰁦 ")
   mu4e-headers-calendar-mark '("c" . "󰃭 ")
   mu4e-headers-encrypted-mark '("x" . "󰇱 ")
   mu4e-headers-signed-mark '("s" . "󰷻 ")
   mu4e-headers-list-mark '("l" . "󰻧 ")
   mu4e-headers-personal-mark '("p" . "󰍡 ")
   mu4e-headers-seen-mark '("S" . "󰑇 ")
   mu4e-headers-new-mark '("N" . "󰎔 ")
   mu4e-headers-from-or-to-prefix '("   " . "To ")
   mu4e-headers-thread-root-prefix          '("* " . "* ")
   mu4e-headers-thread-duplicate-prefix     '("= " . "= ")
   mu4e-headers-thread-blank-prefix         '("  " . "  ")
   mu4e-headers-thread-single-orphan-prefix '("─>" . "─▶")
   mu4e-headers-thread-orphan-prefix        '("┬>" . "┬▶")
   mu4e-headers-thread-connection-prefix    '("│ " . "│ ")
   mu4e-headers-thread-first-child-prefix   '("├>" . "├▶")
   mu4e-headers-thread-child-prefix         '("├>" . "├▶")
   mu4e-headers-thread-last-child-prefix    '("└>" . "╰▶")
   mu4e-marks '((refile :char
                        ("r" . "󰀼 ")
                        :prompt "refile" :dyn-target
                        (lambda
                          (target msg)
                          (mu4e-get-refile-folder msg))
                        :action
                        (lambda
                          (docid msg target)
                          (mu4e--server-move docid
                                             (mu4e--mark-check-target target)
                                             "-N")))
                (delete :char
                        ("D" . "󰗨 ")
                        :prompt "Delete" :show-target
                        (lambda
                          (target)
                          "delete")
                        :action
                        (lambda
                          (docid msg target)
                          (mu4e--server-remove docid)))
                (flag :char
                      ("+" . "󰈻 ")
                      :prompt "+flag" :show-target
                      (lambda
                        (target)
                        "flag")
                      :action
                      (lambda
                        (docid msg target)
                        (mu4e--server-move docid nil "+F-u-N")))
                (move :char
                      ("m" . "󰪹 ")
                      :prompt "move" :ask-target mu4e--mark-get-move-target :action
                      (lambda
                        (docid msg target)
                        (mu4e--server-move docid
                                           (mu4e--mark-check-target target)
                                           "-N")))
                (read :char
                      ("!" . "󰑇 ")
                      :prompt "!read" :show-target
                      (lambda
                        (target)
                        "read")
                      :action
                      (lambda
                        (docid msg target)
                        (mu4e--server-move docid nil "+S-u-N")))
                (trash :char
                       ("d" . "󰆴 ")
                       :prompt "dtrash" :dyn-target
                       (lambda
                         (target msg)
                         (mu4e-get-trash-folder msg))
                       :action
                       (lambda
                         (docid msg target)
                         (mu4e--server-move docid
                                            (mu4e--mark-check-target target)
                                            "+T-N")))
                (unflag :char
                        ("-" . "󱣮 ")
                        :prompt "-unflag" :show-target
                        (lambda
                          (target)
                          "unflag")
                        :action
                        (lambda
                          (docid msg target)
                          (mu4e--server-move docid nil "-F-N")))
                (untrash :char
                         ("=" . "󱂧 ")
                         :prompt "=untrash" :show-target
                         (lambda
                           (target)
                           "untrash")
                         :action
                         (lambda
                           (docid msg target)
                           (mu4e--server-move docid nil "-T")))
                (unread :char
                        ("?" . "󰮒 ")
                        :prompt "?unread" :show-target
                        (lambda
                          (target)
                          "unread")
                        :action
                        (lambda
                          (docid msg target)
                          (mu4e--server-move docid nil "-S+u-N")))
                (unmark :char " " :prompt "unmark" :action
                        (mu4e-error "No action for unmarking"))
                (action :char
                        ("a" . "󰋘 ")
                        :prompt "action" :ask-target
                        (lambda nil
                          (mu4e-read-option "Action: " mu4e-headers-actions))
                        :action
                        (lambda
                          (docid msg actionfunc)
                          (save-excursion
                            (when
                                (mu4e~headers-goto-docid docid)
                              (mu4e-headers-action actionfunc)))))
                (something :char
                           ("*" . "󱗿 ")
                           :prompt "*something" :action
                           (mu4e-error "No action for deferred mark"))))
  (require 'mu4e-org)
  (mu4e-modeline-mode)
  (setq mu4e-contexts
        (list
         (make-mu4e-context
          :name "Xenia"
          :vars '((user-mail-address . "evie@xenia.me.uk")
                  (mu4e-sent-folder . "/Proton/Sent")
                  (mu4e-drafts-folder . "/Proton/Drafts")
                  (mu4e-trash-folder . "/Proton/Trash")
                  (mu4e-refile-folder . "/Proton/Archive")))
         (make-mu4e-context
          :name "Proton"
          :match-func (lambda (msg) (when msg (string-prefix-p "/Proton" (mu4e-message-field msg :maildir))))
          :vars '((user-mail-address . "e.litherlandsmith@proton.me")
                  (mu4e-sent-folder . "/Proton/Sent")
                  (mu4e-drafts-folder . "/Proton/Drafts")
                  (mu4e-trash-folder . "/Proton/Trash")
                  (mu4e-refile-folder . "/Proton/Archive")))
         (make-mu4e-context
          :name "iCloud"
          :match-func (lambda (msg) (when msg (string-prefix-p "/iCloud" (mu4e-message-field msg :maildir))))
          :vars '((user-mail-address . "e.litherlandsmith@icloud.com")
                  (mu4e-sent-folder . "/iCloud/Sent Messages")
                  (mu4e-drafts-folder . "/iCloud/Drafts")
                  (mu4e-trash-folder . "/iCloud/Deleted Messages")
                  (mu4e-refile-folder . "/iCloud/Archive")))
         (make-mu4e-context
          :name "Work"
          :match-func (lambda (msg) (when msg (string-prefix-p "/Outlook" (mu4e-message-field msg :maildir))))
          :vars '((user-mail-address . "evie.litherland-smith@ukaea.uk")
                  (mu4e-sent-folder . "/Outlook/Sent")
                  (mu4e-drafts-folder . "/Outlook/Drafts")
                  (mu4e-trash-folder . "/Outlook/Trash")
                  (mu4e-refile-folder . "/Outlook/Archive"))))))

(use-package mu4e-alert
  :after mu4e
  :config
  (mu4e-alert-set-default-style 'libnotify)
  (mu4e-alert-enable-notifications)
  (mu4e-alert-disable-mode-line-display))

(let ((elfeed-base-directory "~/.elfeed"))
  (setq elfeed-db-directory (expand-file-name "db" elfeed-base-directory)
        elfeed-enclosure-default-dir (expand-file-name "enclosures" elfeed-base-directory)
        rmh-elfeed-org-files (list (expand-file-name "feeds.org" elfeed-base-directory))))
(use-package elfeed
  :bind (("C-c f f" . elfeed)
         ("C-c f u" . elfeed-update))
  :hook (elfeed-search-mode . elfeed-update)
  :config
  (use-package elfeed-org
    :ensure t
    :config (elfeed-org))
  (use-package elfeed-tube
    :ensure t
    :config (elfeed-tube-setup)))

(use-package mastodon
  :commands mastodon
  :custom
  (mastodon-instance-url "https://tech.lgbt")
  (mastodon-active-user "Tux922"))

(defun my/ement-connect-pantalaimon ()
  "Connect to ement.el by calling `ement-connect' with pantalaimon service as uri-prefix"
  (interactive)
  (ement-connect
   :user-id "@evie:xenia.me.uk"
   :uri-prefix "http://localhost:8008"))

(use-package ement
  :ensure t
  :commands ement-connect
  :bind (("C-c m m" . ement-list-rooms)
         ("C-c m n" . ement-notifications)
         ("C-c m j" . ement-room-join)
         ("C-c m l" . ement-room-leave)
         ("C-c m v" . ement-room-view)
         ("C-c m s" . ement-view-space)
         ("C-c m k" . ement-kill-buffers)
         ("C-c m c" . my/ement-connect-pantalaimon))
  :custom
  (ement-save-sessions t))

(setq emms-mode-line-icon-enabled-p nil)
(use-package emms
  :bind (("C-c e e" . emms-pause)
         ("C-c e s" . emms-stop)
         ("C-c e b" . emms-browser)
         ("C-c e p" . emms-playlist-mode-go)
         ("<XF86AudioPlay>" . emms-pause)
         ("<XF86AudioPrev>" . emms-previous)
         ("<XF86AudioNext>" . emms-next))
  :custom
  (emms-source-file-default-directory "~/Music")
  (emms-lyrics-dir "~/Music/lyrics")
  (emms-browser-covers #'emms-browser-cache-thumbnail-async)
  (emms-repeat-playlist t)
  :config
  (emms-all)
  (emms-default-players)
  (emms-mpris-enable)
  (add-hook 'emms-player-started-hook #'emms-show))

(use-package doc-view
  :defer t
  :ensure t
  :custom
  (doc-view-resolution 200)
  (doc-view-continuous t)
  (doc-view-imenu-enabled t)
  (doc-view-scale-internally t)
  (doc-view-image-width 850))

;;; Whitespace
(defun crafted-writing-configure-whitespace (use-tabs &optional use-globally &rest enabled-modes)
  "Helper function to configure `whitespace' mode.

Enable using TAB characters if USE-TABS is non-nil.  If
USE-GLOBALLY is non-nil, turn on `global-whitespace-mode'.  If
ENABLED-MODES is non-nil, it will be a list of modes to activate
whitespace mode using hooks.  The hooks will be the name of the
mode in the list with `-hook' appended.  If USE-GLOBALLY is
non-nil, ENABLED-MODES is ignored.

Configuring whitespace mode is not buffer local.  So calling this
function twice with different settings will not do what you
think.  For example, if you wanted to use spaces instead of tabs
globally except for in Makefiles, doing the following won't work:

;; turns on global-whitespace-mode to use spaces instead of tabs
(crafted-writing-configure-whitespace nil t)

;; overwrites the above to turn to use tabs instead of spaces,
;; does not turn off global-whitespace-mode, adds a hook to
;; makefile-mode-hook
(crafted-writing-configure-whitespace t nil 'makefile-mode)

Instead, use a configuration like this:
;; turns on global-whitespace-mode to use spaces instead of tabs
(crafted-writing-configure-whitespace nil t)

;; turn on the buffer-local mode for using tabs instead of spaces.
(add-hook 'makefile-mode-hook #'indent-tabs-mode)

For more information on `indent-tabs-mode', See the info
node `(emacs)Just Spaces'

Example usage:

;; Configuring whitespace mode does not turn on whitespace mode
;; since we don't know which modes to turn it on for.
;; You will need to do that in your configuration by adding
;; whitespace mode to the appropriate mode hooks.
(crafted-writing-configure-whitespace nil)

;; Configure whitespace mode, but turn it on globally.
(crafted-writing-configure-whitespace nil t)

;; Configure whitespace mode and turn it on only for prog-mode
;; and derived modes.
(crafted-writing-configure-whitespace nil nil 'prog-mode)"
  (if use-tabs
      (customize-set-variable 'whitespace-style
                              '(face empty trailing indentation::tab
                                     space-after-tab::tab
                                     space-before-tab::tab))
    ;; use spaces instead of tabs
    (customize-set-variable 'whitespace-style
                            '(face empty trailing tab-mark
                                   indentation::space)))

  (if use-globally
      (global-whitespace-mode 1)
    (when enabled-modes
      (dolist (mode enabled-modes)
        (add-hook (intern (format "%s-hook" mode)) #'whitespace-mode))))

  ;; cleanup whitespace
  (customize-set-variable 'whitespace-action '(cleanup auto-cleanup)))

;;; parentheses
(electric-pair-mode 1) ; auto-insert matching bracket
(show-paren-mode 1)    ; turn on paren match highlighting

;;; LaTeX configuration
(with-eval-after-load 'latex
  (customize-set-variable 'TeX-auto-save t)
  (customize-set-variable 'TeX-parse-self t)
  (setq-default TeX-master nil)

  ;; compile to pdf
  (tex-pdf-mode)

  ;; correlate the source and the output
  (TeX-source-correlate-mode)

  ;; set a correct indentation in a few additional environments
  (add-to-list 'LaTeX-indent-environment-list '("lstlisting" current-indentation))
  (add-to-list 'LaTeX-indent-environment-list '("tikzcd" LaTeX-indent-tabular))
  (add-to-list 'LaTeX-indent-environment-list '("tikzpicture" current-indentation))

  ;; add a few macros and environment as verbatim
  (add-to-list 'LaTeX-verbatim-environments "lstlisting")
  (add-to-list 'LaTeX-verbatim-environments "Verbatim")
  (add-to-list 'LaTeX-verbatim-macros-with-braces "lstinline")
  (add-to-list 'LaTeX-verbatim-macros-with-delims "lstinline")

  ;; electric pairs in auctex
  (customize-set-variable 'TeX-electric-sub-and-superscript t)
  (customize-set-variable 'LaTeX-electric-left-right-brace t)
  (customize-set-variable 'TeX-electric-math (cons "$" "$"))

  ;; open all buffers with the math mode and auto-fill mode
  (add-hook 'LaTeX-mode-hook #'auto-fill-mode)
  (add-hook 'LaTeX-mode-hook #'LaTeX-math-mode)

  ;; add support for references
  (add-hook 'LaTeX-mode-hook #'turn-on-reftex)
  (customize-set-variable 'reftex-plug-into-AUCTeX t)

  ;; to have the buffer refresh after compilation
  (add-hook 'TeX-after-compilation-finished-functions #'TeX-revert-document-buffer))

(defun crafted-latex-use-pdf-tools ()
  "Use PDF Tools instead of docview, requires a build environment
to compile PDF Tools.

Depends on having `pdf-tools'."

  (with-eval-after-load 'latex
    (customize-set-variable 'TeX-view-program-selection '((output-pdf "PDF Tools")))
    (customize-set-variable 'TeX-view-program-list '(("PDF Tools" TeX-pdf-tools-sync-view)))
    (customize-set-variable 'TeX-source-correlate-start-server t)))

;; message the user if the latex executable is not found
(defun crafted-writing-tex-warning-if-no-latex-executable ()
  "Print a message to the minibuffer if the \"latex\" executable cannot be found."
  (unless (executable-find "latex")
    (message "latex executable not found")))
(add-hook 'tex-mode-hook #'crafted-writing-tex-warning-if-no-latex-executable)

(when (and (executable-find "latex")
           (executable-find "latexmk"))
  (with-eval-after-load 'latex
    (when (require 'auctex-latexmk nil 'noerror)
      (with-eval-after-load 'auctex-latexmk
        (auctex-latexmk-setup)
        (customize-set-variable 'auctex-latexmk-inherit-TeX-PDF-mode t))

      (defun crafted-writing-tex-make-latexmk-default-command ()
        "Set `TeX-command-default' to \"LatexMk\"."
        (setq TeX-command-default "LatexMk"))
      (add-hook 'TeX-mode-hook #'crafted-writing-tex-make-latexmk-default-command))))

;;; Markdown
(when (fboundp 'markdown-mode)
  ;; because the markdown-command variable may not be loaded (yet),
  ;; check manually for the other markdown processors.  If it is
  ;; loaded, the others are superfluous but `or' fails fast, so they
  ;; are not checked if `markdown-command' is set and the command is
  ;; indeed found.
  (unless (or (and (boundp 'markdown-command)
                   (executable-find markdown-command))
              (executable-find "markdown")
              (executable-find "pandoc"))
    (message "No markdown processor found, preview may not possible."))

  (with-eval-after-load 'markdown-mode
    (customize-set-variable 'markdown-enable-math t)
    (customize-set-variable 'markdown-enable-html t)
    (add-hook 'markdown-mode-hook #'conditionally-turn-on-pandoc)))

;;; PDF Support when using pdf-tools
(when (locate-library "pdf-tools")
  ;; load pdf-tools when going into doc-view-mode
  (defun crafted-writing-load-pdf-tools ()
    "Attempts to require pdf-tools, but for attaching to hooks."
    (require 'pdf-tools nil :noerror))
  (add-hook 'doc-view-mode-hook #'crafted-writing-load-pdf-tools)

  ;; when pdf-tools is loaded, apply settings.
  (with-eval-after-load 'pdf-tools
    (setq-default pdf-view-display-size 'fit-width)))