{
  pkgs,
  lib,
  ...
}: let
  indentSize = 4;
in {
  options = {
    programs.nixvim.ai = {
      enable = lib.mkEnableOption "AI functions";
    };
  };
  config = {
    clipboard.register = "unnamedplus";
    globals = {
      mapleader = " ";
      maplocalleader = ",";
    };
    opts = {
      termguicolors = true;
      whichwrap = "b,s,<,>,[,],h,l";
      backspace = "indent,eol,start";
      autoindent = true;
      expandtab = true;
      smarttab = true;
      smartindent = true;
      shiftwidth = indentSize;
      tabstop = indentSize;
      softtabstop = indentSize;
      hlsearch = true;
      incsearch = true;
      ignorecase = true;
      smartcase = true;
      scrolloff = 8;
      splitbelow = true;
      splitright = true;
      startofline = false;
      number = true;
      relativenumber = true;
      visualbell = true;
      errorbells = false;
      #textwidth = 80;
      colorcolumn = [80];
      cursorline = true;
      undofile = true;
      backup = true;
      mouse = "a";
      selectmode = "mouse";
      mousemoveevent = true;
      timeoutlen = 300;
      list = true;
      spell = true;
      spelllang = ["de" "en_us"];
      helplang = "de";
      laststatus = 3;
      conceallevel = 0;
      concealcursor = "nc";
      signcolumn = "yes";
      foldlevel = 999;
    };
    extraPackages = with pkgs; [
      fd
      ripgrep
      iferr
      fswatch
      reftools
      golines
      richgo
      gofumpt
      govulncheck
      mockgen
      ginkgo
      gotestsum
      libxcrypt
      xz
      icu74
      alejandra
      nixpkgs-fmt
      vscode-extensions.ms-vscode.cpptools
    ];
    extraPlugins = with pkgs.vimPlugins; [
      {
        plugin = go-nvim;
        config = ''lua require("go").setup()'';
      }
      {
        plugin = nvim-dap-go;
        config = ''lua require("dap-go").setup()'';
      }
      {
        plugin = telescope-dap-nvim;
        config = ''lua require("telescope").load_extension("dap")'';
      }
    ];
    extraConfigLua = ''
      vim.opt.undodir = vim.fn.stdpath("state") .. "/undo"
      vim.opt.backupdir = vim.fn.stdpath("state") .. "/backup"
      vim.opt.listchars:append("eol:↴")
      vim.opt.listchars:append("space:.")
      vim.opt.listchars:append("tab:🡢 ")

      vim.filetype.add({extension = { templ = "templ" }})

      vim.diagnostic.config({
        virtual_text = true,
        severity_sort = true,
      })

      vim.fn.sign_define("DiagnosticSignError", { text = " ", texthl = "DiagnosticSignError" })
      vim.fn.sign_define("DiagnosticSignWarn", { text = "", texthl = "DiagnosticSignWarn" })
      vim.fn.sign_define("DiagnosticSignInfo", { text = "", texthl = "DiagnosticSignInfo" })
      vim.fn.sign_define("DiagnosticSignHint", { text = "󰌵", texthl = "DiagnosticSignHint" })

      vim.fn.sign_define("DapBreakpoint", { text = "", texthl = "DapBreakpoint", linehl = "", numhl = "DapBreakpoint" })
      vim.fn.sign_define(
          "DapBreakpointCondition",
          { text = "ﳁ", texthl = "DapBreakpoint", linehl = "", numhl = "DapBreakpoint" }
      )
      vim.fn.sign_define(
          "DapBreakpointRejected",
          { text = "", texthl = "DapBreakpoint", linehl = "", numhl = "DapBreakpoint" }
      )
      vim.fn.sign_define("DapLogPoint", { text = "", texthl = "DapLogPoint", linehl = "", numhl = "DapLogPoint" })
      vim.fn.sign_define("DapStopped", { text = "", texthl = "DapStopped", linehl = "", numhl = "DapStopped" })
    '';

    extraConfigLuaPre = ''
      local colors = require("catppuccin.palettes").get_palette("mocha")
      local pickers = require("telescope.pickers")
      local finders = require("telescope.finders")
      local conf = require("telescope.config").values
      local actions = require("telescope.actions")
      local action_state = require("telescope.actions.state")

      local pickers = require("telescope.pickers")
      local finders = require("telescope.finders")
      local conf = require("telescope.config").values
      local actions = require("telescope.actions")
      local action_state = require("telescope.actions.state")

      function get_program()
        return coroutine.create(function(coro)
          local opts = {}
          pickers
          .new(opts, {
            prompt_title = "Path to executable",
            finder = finders.new_oneshot_job({ "fd", "--exclude", ".git", "--no-ignore", "--type", "x"}, {}),
            sorter = conf.generic_sorter(opts),
            attach_mappings = function(buffer_number)
            actions.select_default:replace(function()
            actions.close(buffer_number)
            coroutine.resume(coro, action_state.get_selected_entry()[1])
            end)
            return true
            end,
          })
          :find()
        end)
      end
    '';

    extraConfigLuaPost = ''
      local hooks = require("ibl.hooks")
      -- create the highlight groups in the highlight setup hook, so they are reset
      -- every time the colorscheme changes
      hooks.register(hooks.type.HIGHLIGHT_SETUP, function()
          vim.api.nvim_set_hl(0, "RainbowRed", { fg = colors.red })
          vim.api.nvim_set_hl(0, "RainbowYellow", { fg = colors.yellow })
          vim.api.nvim_set_hl(0, "RainbowBlue", { fg = colors.blue })
          vim.api.nvim_set_hl(0, "RainbowOrange", { fg = colors.peach })
          vim.api.nvim_set_hl(0, "RainbowGreen", { fg = colors.green })
          vim.api.nvim_set_hl(0, "RainbowViolet", { fg = colors.mauve })
          vim.api.nvim_set_hl(0, "RainbowCyan", { fg = colors.teal })
      end)

      hooks.register(hooks.type.SCOPE_HIGHLIGHT, hooks.builtin.scope_highlight_from_extmark)


      local dap = require("dap")
      local dapui = require("dapui")
      dap.listeners.before.attach.dapui_config = function()
          dapui.open()
      end
      dap.listeners.before.launch.dapui_config = function()
          dapui.open()
      end
      dap.listeners.after.event_initialized.dapui_config = function()
          dapui.open()
      end
      dap.listeners.before.event_terminated.dapui_config = function()
          dapui.close()
      end
      dap.listeners.before.event_exited.dapui_config = function()
          dapui.close()
      end
    '';
  };
}