website/flake.nix

{
  inputs = {
    nixpkgs.url = "nixpkgs";

    org-thtml = { url = "github:juanjosegarciaripoll/org-thtml"; flake = false; };
    emacs-htmlize = { url = "github:hniksic/emacs-htmlize"; flake = false; };
    modus-themes = { url = "github:protesilaos/modus-themes"; flake = false; };
    web-mode = { url = "github:fxbois/web-mode"; flake = false; };
    hcl-mode = { url = "github:purcell/emacs-hcl-mode"; flake = false; };
  };

  outputs = { self
            , nixpkgs
            , nixng
            , org-thtml
            , emacs-htmlize
            , modus-themes
            , web-mode
            , hcl-mode
            , ...
            }@inputs:
    let
      supportedSystems = [ "x86_64-linux" "i686-linux" "aarch64-linux" ];
      forAllSystems = f: nixpkgs.lib.genAttrs supportedSystems (system: f system);
      site = pkgs: which:
        pkgs.stdenv.mkDerivation {
            name = which;
            version = "0.1";
            src = ./.;
            nativeBuildInputs = [ pkgs.utillinux pkgs.emacs ];

            buildPhase = ''
              export TMPDIR="$(mktemp -d)" HOME=$(pwd)/tmp
              emacs -nw --fg-daemon &

              timeout 10 bash -c 'until [ -e $TMPDIR/emacs$(id -u) ] ; do sleep 0.1 ; done'

              emacsclient -e $'(add-to-list \'load-path "${org-thtml}")'
              emacsclient -e $'(add-to-list \'load-path "${modus-themes}")'
              emacsclient -e $'(add-to-list \'load-path "${emacs-htmlize}")'
              emacsclient -e $'(add-to-list \'load-path "${web-mode}")'
              emacsclient -e $'(add-to-list \'load-path "${hcl-mode}")'

              emacsclient -e '(load-file "./make.el")'
              emacsclient -e '(magic_rb/publish-website "${which}")'
              emacsclient -e '(kill-emacs)' 

              find public_html -name 'sitemap.*' -exec rm {} \;
            '';

            installPhase = ''
              mkdir -p  $out 
              cp -r public_html/* $out
            '';
          };
    in
      {
        redalder = forAllSystems (system:
          let
            pkgs = import nixpkgs { inherit system; };
          in
            site pkgs "redalder.org"
        );

        nixng = forAllSystems (system:
          let
            pkgs = import nixpkgs { inherit system; };
          in
            site pkgs "nixng.org"
        );

        website = forAllSystems (system:
          let
            pkgs = import nixpkgs { inherit system; }; 
          in
            pkgs.runCommandNoCC "website" {}
              ''
                mkdir -p $out/
                ln -s ${self.redalder.${system}} $out/redalder
                ln -s ${self.nixng.${system}} $out/nixng
              ''
        );

        generateCss = forAllSystems (system:
          let
            pkgs = import nixpkgs { inherit system; }; 

            script = pkgs.writeText "init.el"
              ''
                (add-to-list 'load-path "${modus-themes}")
                (add-to-list 'load-path "${emacs-htmlize}")

                (require 'org)
                (require 'ox)
                (require 'ox-html)
                (require 'modus-themes)

                (load-theme 'modus-operandi t nil)
                
                (org-html-htmlize-generate-css)
                (with-current-buffer "*html*"
                  (write-file (getenv "OUTFILE")))

                (kill-emacs)
              '';
          in
            pkgs.writeShellScript "generate-css"
              ''
                export PATH=$PATH:${pkgs.emacs}/bin
 
                export OUTFILE="$(mktemp)" TMPDIR="$(mktemp -d)" HOME=$TMPDIR
                emacs -l ${script}

                mv $OUTFILE ./assets/css/org.css

                rm -r $TMPDIR
              ''
        );

        defaultPackage = forAllSystems (system:
          self.website.${system}
        );
      };
}