{ pkgs, lib, config, specialArgs, options, modulesPath }:

with pkgs;
with pkgs.kakouneUtils;

let
   config = writeTextFile (rec {
      name = "kakrc.kak";
      destination = "/share/kak/autoload/${name}";
      text = ''
        hook global KakBegin .* %{
            colorscheme colors
        }
        map global user y <a-|>${wl-clipboard}/bin/wl-copy<ret>
        map global user p !${wl-clipboard}/bin/wl-paste<ret>
        addhl global/ wrap

        hook global WinSetOption filetype=kaktree %{
            remove-highlighter buffer/numbers
            remove-highlighter buffer/matching
            remove-highlighter buffer/wrap
            set-option global kaktree_indentation 1
            set-option global kaktree_dir_icon_open  '▾ 🗁 '
            set-option global kaktree_dir_icon_close '▸ 🗀 '
            set-option global kaktree_file_icon      '⠀⠀🖺'
            remove-highlighter buffer/show-whitespaces
            set window modelinefmt ' '
        }

        hook global WinSetOption filetype=(javascript|typescript) %{
            map buffer normal <tab> ': lsp-code-actions<ret>'
            map buffer normal <ret> ': lsp-hover<ret>'

            lsp-enable-window
            hook window ModeChange .*:.*:insert %{
                lsp-inlay-diagnostics-disable window
                remove-highlighter window/lsp_diagnostics
            }
            hook window ModeChange .*:insert:normal %{
                lsp-inlay-diagnostics-enable window
            }

        }

        hook global WinCreate [^*]* %{
            editorconfig-load
            kaktree-enable
        }
        
      '';
    });
    lsp-config = writeTextFile (rec {
      name = "kak-lsp.toml";
      destination = "/share/kak-lsp/${name}";
      text = ''
        [language.typescript]
          filetypes = ["typescript", "javascript"]
          roots = ["package.json"]
          command = "rslint-lsp"
      '';
    });
    colors = writeTextFile (rec {
      name = "colors.kak";
      destination = "/share/kak/colors/${name}";
      text = ''# Kanagawa theme for Kakoune

        # Color palette
        # declare-option str black 'rgb:0a0e14'
        declare-option str black default
        declare-option str dark 'rgb:090618'
        declare-option str gray 'rgb:727169'
        declare-option str aqua 'rgb:6A9589'
        declare-option str white 'rgb:DCD7BA'
        declare-option str blue 'rgb:7E9CD8'
        declare-option str cyan 'rgb:7FB4CA'
        declare-option str blue_green 'rgb:7AA89F'
        declare-option str green 'rgb:98BB6C'
        declare-option str light_orange 'rgb:DCA561'
        declare-option str orange 'rgb:FFA066'
        declare-option str pink 'rgb:D27E99'
        declare-option str purple 'rgb:957fb8'
        declare-option str red 'rgb:C34043'
        declare-option str yellow 'rgb:E6C384'
        declare-option str lime 'rgb:C0A36E'
        declare-option str psel 'rgba:2D4F6780'
        declare-option str ssel 'rgba:22324980'
        declare-option str dimgray 'rgb:54546D'

        declare-option str background %opt{black}
        declare-option str dimmed_background %opt{gray}
        declare-option str foreground %opt{white}

        # Reference
        # https://github.com/mawww/kakoune/blob/master/colors/default.kak
        # For code
        set-face global value "%opt{yellow}"
        set-face global type "%opt{cyan}"
        set-face global variable "%opt{yellow}"
        set-face global module "%opt{white}"
        set-face global function "%opt{blue}"
        set-face global string "%opt{green}"
        set-face global keyword "%opt{purple}"
        set-face global operator "%opt{lime}"
        set-face global attribute "%opt{blue_green}"
        set-face global bracket "%opt{white}+b"
        set-face global arguement "%opt{light_orange}"
        set-face global comma "%opt{white}"
        set-face global constant "%opt{blue_green}+b"
        set-face global class "%opt{pink}"
        set-face global comment "%opt{gray}+i"
        set-face global meta "%opt{aqua}"
        set-face global builtin "%opt{cyan}+b"

        # For markup
        set-face global title "%opt{pink}"
        set-face global header "%opt{orange}"
        set-face global bold "%opt{pink}"
        set-face global italic "%opt{purple}"
        set-face global mono "%opt{green}"
        set-face global block "%opt{cyan}"
        set-face global link "%opt{green}"
        set-face global bullet "%opt{green}"
        set-face global list "%opt{white}"

        # Builtin faces
        set-face global Default "%opt{white},%opt{black}"
        # set-face global Default "%opt{white},default"
        set-face global PrimarySelection "default,%opt{psel}"
        set-face global SecondarySelection "default,%opt{ssel}"
        set-face global PrimaryCursor "%opt{dark},%opt{cyan}"
        set-face global SecondaryCursor "%opt{dark},%opt{aqua}"
        set-face global PrimaryCursorEol "%opt{dark},%opt{light_orange}"
        set-face global SecondaryCursorEol "%opt{dark},%opt{blue}"
        set-face global LineNumbers "%opt{gray},%opt{black}"
        set-face global LineNumberCursor "%opt{purple},%opt{black}+b"
        set-face global LineNumbersWrapped "%opt{gray},%opt{black}+i"
        set-face global MenuForeground "%opt{dark},%opt{white}+b"
        set-face global MenuBackground "%opt{white},%opt{dark}"
        set-face global MenuInfo "%opt{dark},%opt{orange}"
        set-face global Information "%opt{yellow},%opt{black}"
        set-face global Error "%opt{red},%opt{black}"
        set-face global StatusLine "%opt{white},%opt{black}"
        set-face global StatusLineMode "%opt{aqua},%opt{black}"
        set-face global StatusLineInfo "%opt{purple},%opt{black}"
        set-face global StatusLineValue "%opt{orange},%opt{black}"
        set-face global StatusCursor "%opt{white},%opt{blue}"
        set-face global Prompt "%opt{green},%opt{black}"
        set-face global MatchingChar "%opt{blue},%opt{black}"
        set-face global Whitespace "%opt{dimgray},%opt{black}+f"
        set-face global WrapMarker Whitespace
        set-face global BufferPadding "%opt{black},%opt{black}"



      '';
    });
    lsp = symlinkJoin {

      name = "kak-lsp-${kak-lsp.version}";
      nativeBuildInputs = [ makeWrapper ];

      paths = with kakounePlugins; [
        kakoune-lsp
        lsp-config
      ];
      

      postBuild = ''
        wrapProgram $out/bin/kak-lsp --add-flags "--config $out/share/kak-lsp/kak-lsp.toml"
      '';

    };
    kak-crosshairs = buildKakounePlugin (rec {
        name = "kak-crosshairs";
        src = (pkgs.fetchFromGitHub {
            owner  = "insipx";
            repo   = name;
            rev    = "7edba13c535ce1bc67356b1c9461f5d261949d29";
            sha256 = "sha256-VOn9GGHludJasEwcCv6t1Q3/63w9139MCEkdRDnTw6E";
        });
    });
    kaktree = buildKakounePlugin (rec {
        name = "kaktree";
        src = (pkgs.fetchFromGitHub {
            owner  = "andreyorst";
            repo   = name;
            rev    = "acd47e0c8549afe1634a79a5bbd6d883daa8ba0a";
            sha256 = "sha256-9wiJFVxm+xZndUUpqrQ9eld/Df3wcp7gFDZTdInGPQQ=";
        });
    });
    kak-wrap = (writeShellApplication {
        name = "edit";
        runtimeInputs = [ myKakoune ];
        text = ''
          CMND=$(cat <<'END'
            BUFFER_NAME=''$(echo -n "''$PWD" | xxd -ps -c 200 | tr -d '\n' | shasum | head -c -4)

            tmux -L "$BUFFER_NAME" has-session -t "$BUFFER_NAME" || {
              tmux -L "$BUFFER_NAME" new-session -d -s "$BUFFER_NAME" "kak -e 'kaktree-enable; kaktree-toggle'"
              tmux -L "$BUFFER_NAME" set -g status off
              tmux -L "$BUFFER_NAME" set -g pane-border-style fg=#0c0c0c
              tmux -L "$BUFFER_NAME" set -g pane-active-border-style "bg=default fg=#0c0c0c"
            }

            tmux -L "$BUFFER_NAME" attach -t "$BUFFER_NAME"
          END
          )

          if [ -f "shell.nix" ] && [ -z ''${IN_NIX_SHELL+x} ]; then
            nix-shell --command "$CMND"
          else
            eval "$CMND"
          fi
        '';
    });



  myKakoune = kakoune.override {
    plugins = with kakounePlugins; [ config lsp colors kak-crosshairs kaktree kakoune-state-save  ];
  };
in
{
  environment.systemPackages = [ myKakoune kak-wrap ];
}