{ config, pkgs, ... }:
{
  programs.neovim = {
    enable = true;
    defaultEditor = true;
    plugins = with pkgs.vimPlugins; [
      # fzfWrapper
      # fzf-vim
      formatter-nvim
      goyo-vim
      vim-visual-multi
      nvim-lspconfig
      blink-cmp
      telescope-nvim
      undotree
      which-key-nvim
      guess-indent-nvim
    ];
    extraConfig = ''
      set number
      set relativenumber
      set tabstop=4
      set shiftwidth=4
      set expandtab
      set foldmethod=marker
      set autoindent
      set smartindent
      filetype plugin indent on
      set signcolumn=yes

      colorscheme habamax

      nnoremap <Down> gj
      nnoremap <Up> gk
      vnoremap <Down> gj
      vnoremap <Up> gk
      inoremap <Down> <C-o>gj
      inoremap <Up> <C-o>gk
      tnoremap <Esc> <C-\><C-n>
      map <Space> <Leader>
      nnoremap <Esc> :noh<CR>
      nnoremap gr :Telescope lsp_references<CR>
      nnoremap gd :Telescope lsp_definitions<CR>
      nnoremap <leader>u :UndotreeToggle<CR> :UndotreeFocus<CR>
      nnoremap <leader>f :Telescope find_files<CR>
      nnoremap <leader>b :Telescope buffers<CR>
      nnoremap <leader>e :Telescope diagnostics<CR>
      nnoremap <leader>g :Telescope live_grep<CR>
      nnoremap <leader>s :Telescope lsp_document_symbols<CR>
      nnoremap <leader>r :lua vim.lsp.buf.rename()<CR>
      nnoremap <leader>n :bnext<CR>
      nnoremap <leader>m :bprevious<CR>
      nnoremap <leader><Space> za
      noremap <leader>y "+y<CR>
      noremap <leader>p "+p<CR>
      noremap <leader><S-y> "+<S-y><CR>
      noremap <leader><S-p> "+<S-p><CR>

      " Format on save
      " augroup FormatAutogroup
      "   autocmd!
      "   autocmd BufWritePost * FormatWrite
      " augroup END

      " enter insert mode when opening terminal
      autocmd TermOpen * startinsert

      " Return to last opened position
      autocmd BufReadPost *
      \ if line("'\"") > 1 && line("'\"") <= line("$") && &ft !~# 'commit'
      \ |   exe "normal! g`\""
      \ | endif

      " Use persistent history.
      if !isdirectory("/tmp/.vim-undo-dir")
          call mkdir("/tmp/.vim-undo-dir", "", 0700)
      endif
      set undodir=/tmp/.vim-undo-dir
      set undofile
    '';
    extraLuaConfig = ''
      vim.lsp.enable('zls')
      vim.lsp.enable('clangd')
      vim.lsp.config('zuban', {})
      vim.lsp.enable('zuban')
      vim.lsp.enable('jdtls')
      require('guess-indent').setup {}
      local tl_actions = require("telescope.actions")
      local tl_builtin = require("telescope.builtin")
      require('telescope').setup {
        defaults = {
          mappings = {
            i = { ["<esc>"] = tl_actions.close },
          }
        }
      }
      tl_builtins.buffers { sort_lastused = true, ignore_current_buffer = true }
      require('formatter').setup {
        logging = true,
        log_level = vim.log.levels.WARN,
        filetype = {
          c = { require("formatter.filetypes.c").clangformat },
          cpp = { require("formatter.filetypes.cpp").clangformat },
          zig = { require("formatter.filetypes.zig").zigfmt },
          markdown = { require("formatter.filetypes.markdown").denofmt },
          java = { require("formatter.filetypes.java").google_java_format },
        }
      }
      require('blink.cmp').setup {
        keymap = {
          preset = 'none',
          
          ['<C-space>'] = { 'show', 'show_documentation', 'hide_documentation' },
          ['<C-e>'] = { 'hide', 'fallback' },
          ['<CR>'] = { 'accept', 'fallback' },

          ['<Tab>'] = { 'select_next', 'fallback_to_mappings' },
          ['<S-Tab>'] = { 'select_prev', 'fallback_to_mappings' },

          ['<C-p>'] = { 'scroll_documentation_up', 'fallback' },
          ['<C-n'] = { 'scroll_documentation_down', 'fallback' },

          ['<C-k>'] = { 'show_signature', 'hide_signature', 'fallback' },
        },
        completion = {
          list = { selection = { preselect = false, } },
	  documentation = {
	    auto_show = true,
	    -- treesitter_highlighting = false,
	  },
        },
        signature = { enabled = true },
      }
    '';
  };
  programs.helix = {
    enable = true;
    settings = {
      theme = "base16_terminal";
      editor.cursor-shape = {
        insert = "bar";
        normal = "block";
        select = "underline";
      };
      editor.soft-wrap = {
        enable = true;
      };
      editor.file-picker = {
        hidden = false;
      };
      keys.normal."space" = {
        "space" = "goto_word";
      };
    };
    languages = {
      language = [{
        name = "c";
        auto-format = true;
        formatter = { command = "clang-format"; args = ["--style=microsoft"]; };
      }];
    };
  };

}