# klem < klemm < klemmbrett ~ clipboard
{ pkgs, lib, ... }@args:
let
  cfg = eval.config;

  eval = lib.evalModules {
    modules = [{
      _file = toString ./klem.nix;
      imports = [ (args.config or { }) ];
      options = {
        selection = lib.mkOption {
          default = "clipboard";
          type = lib.types.enum [ "primary" "secondary" "clipboard" ];
        };
        dmenu = lib.mkOption {
          default = "${pkgs.dmenu}/bin/dmenu -i -p klem";
          type = lib.types.path;
        };
        scripts = lib.mkOption {
          default = {
            pastebin = "${pkgs.curl}/bin/curl -fSs -F 'f:1=<-' ix.io";
            shorten = ''
              ${pkgs.curl}/bin/curl -fSs -F "shorten=$(${pkgs.coreutils}/bin/cat)" https://0x0.st
            '';
            "replace p.r" = "${pkgs.gnused}/bin/sed 's/\\<r\\>/krebsco.de/'";
          };
          type = lib.types.attrs;
        };
      };
    }];
  };

  scriptCase = option: script: ''
    '${option}') ${toString script} ;;
  '';
in pkgs.writers.writeDashBin "klem" ''
  ${pkgs.xclip}/bin/xclip -selection ${cfg.selection} -out \
    | case $(echo "${
      lib.concatStringsSep "\n" (lib.attrNames cfg.scripts)
    }" | ${cfg.dmenu}) in
      ${lib.concatStringsSep "\n" (lib.mapAttrsToList scriptCase cfg.scripts)}
      *) ${pkgs.coreutils}/bin/cat ;;
    esac \
    | tr -d '\r\n' \
    | ${pkgs.xclip}/bin/xclip -selection ${cfg.selection} -in
''