home-manager/programs/emacs/default.nix

{
  config,
  pkgs,
  fonts,
  ...
}: {
  programs.emacs = {
    # Clone emacs config from https://git.xenia.me.uk/pixelifytica/emacs.git
    # git clone https://git.xenia.me.uk/pixelifytica/emacs.git ~/.config/emacs
    enable = true;
    package = pkgs.emacs29-pgtk;
    extraConfig = let
      shell = "${pkgs.zsh}/bin/zsh";
      font = "${fonts.monospace.name}-${toString fonts.sizes.applications}";
      fixed-font-family = "${fonts.monospace.name}";
      variable-font-family = "${fonts.sansSerif.name}";
      alpha = "80";
    in ''
      (customize-set-variable 'shell-file-name "${shell}")
      (add-to-list 'initial-frame-alist '(font . "${font}"))
      (add-to-list 'default-frame-alist '(font . "${font}"))
      (set-face-attribute 'fixed-pitch nil :family "${fixed-font-family}")
      (set-face-attribute 'fixed-pitch-serif nil :family "${fixed-font-family}")
      (set-face-attribute 'variable-pitch nil :family "${variable-font-family}")
      (add-to-list 'initial-frame-alist '(alpha-background . ${alpha}))
      (add-to-list 'default-frame-alist '(alpha-background . ${alpha}))
      (scroll-bar-mode -1)
      (tab-bar-mode -1)
      (menu-bar-mode -1)
    '';
    extraPackages = epkgs:
      with epkgs; [
        # Theme
        base16-theme

        # UI
        all-the-icons
        nerd-icons
        nerd-icons-completion
        nerd-icons-corfu
        nerd-icons-dired
        nerd-icons-ibuffer
        doom-modeline
        diminish
        ligature
        page-break-lines
        helpful
        which-key
        link-hint
        diff-hl

        # Completion
        cape
        consult
        consult-eglot
        consult-flyspell
        corfu
        corfu-terminal
        embark
        embark-consult
        marginalia
        orderless
        vertico

        # Snippets
        tempel
        tempel-collection

        # spell-checking
        flyspell-correct

        # password-store
        pass
        password-store

        # IDE
        treesit-grammars.with-all-grammars
        treesit-auto
        flymake-popon
        flymake-collection
        flymake-shellcheck
        flymake-yamllint
        apheleia
        direnv
        rainbow-delimiters
        aggressive-indent
        nix-mode
        python-docstring

        # Media
        emms

        # org-mode
        org-roam
        org-noter
        org-journal

        # org-cite
        citar
        citar-embark

        # org-plot
        gnuplot

        # org-mode HTML export
        htmlize

        # Projects
        ibuffer-project
        magit
        forge

        # Writing
        markdown-mode
        pandoc-mode
        auctex
        auctex-latexmk
        latex-preview-pane

        # Email
        mu4e

        # RSS feeds
        elfeed
        elfeed-org
        elfeed-tube
      ];
  };
  services = {
    emacs = {
      enable = true;
      package = config.programs.emacs.finalPackage;
      defaultEditor = true;
      client.enable = true;
      socketActivation.enable = true;
      startWithUserSession = false;
    };
    git-sync.repositories = with config.xdg.userDirs; {
      org = {
        path = "${documents}/Org";
        uri = "git+https://git.xenia.me.uk/xenia/org.git";
      };
      references = {
        path = "${documents}/References";
        uri = "git+https://git.xenia.me.uk/xenia/references.git";
      };
    };
  };
  home.packages = with pkgs; [
    # Emacs requirements
    imagemagick
    languagetool
    wordnet
    gnuplot # For org-plot
    graphviz # For org-roam graph
    mp3info # For EMMS

    # Language-specific requirements
    sqlite
    pandoc
    ghostscript
    poppler_utils

    # Customised LaTeX install
    (texlive.combine {
      inherit (pkgs.texlive) scheme-medium dvisvgm dvipng wrapfig amsmath ulem hyperref capt-of;
    })

    # Development tools
    # Python is a special case, installed separately
    ## Language servers
    nil
    fortls
    lua-language-server
    nodePackages.bash-language-server

    ## Linters
    shellcheck
    yamllint

    ## Formatters
    alejandra
    shfmt
    black
    isort
    stylua
    nodePackages.prettier
  ];
}