{ pkgs, lib, ... }:

let
  macKeys = {
    "Cmd-b" = "page_up";
    "Cmd-f" = "page_down";
    "Cmd-u" = "page_cursor_half_up";
    "Cmd-d" = "page_cursor_half_down";
    "Cmd-j" = "insert_newline";
    "Cmd-h" = "delete_char_backward";
    "Cmd-w" = "delete_word_backward";
    "Cmd-x" = "completion";
    "Cmd-c" = "toggle_comments";
    "Cmd-i" = "jump_forward";
    "Cmd-o" = "jump_backward";
    "Cmd-s" = "save_selection";
    "Cmd-r" = "insert_register";
    "Cmd-z" = "suspend";
    "Cmd-a" = "increment";
  };
in
{
  programs.helix = {
    enable = true;
    defaultEditor = true;

    settings = {
      theme = "onedark";

      editor = {
        scrolloff = 10;
        mouse = true;
        middle-click-paste = true;
        scroll-lines = 3;
        line-number = "absolute";
        cursorline = false;
        cursorcolumn = false;
        continue-comments = true;
        auto-completion = true;
        path-completion = true;
        auto-format = true;
        preview-completion-insert = true;
        completion-trigger-len = 2;
        auto-info = true;
        true-color = true;
        bufferline = "multiple";
        rulers = [ 88 ];
        color-modes = false;
        text-width = 88;
        default-line-ending = "lf";
        insert-final-newline = true;
        auto-pairs = false;

        lsp = {
          enable = true;
          display-messages = true;
          auto-signature-help = true;
          display-inlay-hints = true;
          display-signature-help-docs = true;
          snippets = true;
          goto-reference-include-declaration = true;
        };

        cursor-shape = {
          normal = "block";
          insert = "bar";
          select = "block";
        };

        file-picker = {
          hidden = false;
          follow-symlinks = true;
          ignore = true;
          git-ignore = false;
        };

        auto-save = {
          focus-lost = false;
          after-delay.enable = false;
        };

        search = {
          smart-case = true;
          wrap-around = true;
        };

        whitespace.render = {
          space = "none";
          tab = "all";
          nbsp = "none";
          nnbsp = "none";
          newline = "none";
        };

        whitespace.characters = {
          tab = "→";
        };

        indent-guides = {
          render = true;
          character = "⎪";
          skip-levels = 1;
        };

        soft-wrap = {
          enable = true;
          max-wrap = 25;
        };

        inline-diagnostics = {
          cursor-line = "info";
        };
      };

      keys.normal = {
        "d" = "delete_selection_noyank";
        "A-d" = "delete_selection";
        "C-y" = [
          ":sh rm -f /tmp/yazi-chooser"
          '':insert-output yazi "%{buffer_name}" --chooser-file=/tmp/yazi-chooser''
          '':sh printf '\x1b[?1049h\x1b[?2004h' > /dev/tty''
          ":open %sh{cat /tmp/yazi-chooser}"
          ":redraw"
        ];
      }
      // lib.optionalAttrs pkgs.stdenv.isDarwin macKeys;

      keys.select = {
      }
      // lib.optionalAttrs pkgs.stdenv.isDarwin macKeys;
    };

    languages = {
      language = [
        {
          name = "quarto";
          language-id = "markdown";
          language-servers = [
            "marksman"
            "harper-ls"
          ];
          auto-format = false;
          comment-tokens = [
            "-"
            "*"
            ">"
          ];
        }
        {
          name = "markdown";
          language-servers = [
            "marksman"
            "harper-ls"
          ];
          auto-format = false;
          comment-tokens = [
            "-"
            "*"
            ">"
          ];
        }
      ];

      language-server.harper-ls = {
        command = "harper-ls";
        args = [ "--stdio" ];
        config.harper-ls = {
          userDictPath = "";
          diagnosticSeverity = "hint";
          workspaceDictPath = ".harper-dictionary.txt";
          ignoredLintsPath = ".harper-ignored.txt";
          linters = {
            SplitWords = false;
            UseTitleCase = false;
            LongSentences = false;
            SentenceCapitalization = false;
            CompoundNouns = false;
            OrthographicConsistency = false;
          };
        };
      };
    };

    extraPackages = with pkgs; [
      harper
      marksman
      nil
    ];
  };
}