nixos/pkgsets/nvim/cmp.nix

{
  lib,
  config,
  ...
}:

lib.mkIf (lib.elem "nvim::cmp" config.machine.pkgs) {
  programs.nvim-lazy.lazyPlugins = [
    # Autocompletion
    {
      dir = vPlug: vPlug.nvim-cmp;
      event = [ "InsertEnter" ];
      dependencies = (
        vPlug: with vPlug; [
          luasnip
        ]
      );
      config = # lua
        ''
          function()
            local cmp = require('cmp')

            cmp.setup({
              ${
                lib.optionalString (lib.elem "nvim::lsp" config.machine.pkgs) # lua
                  ''sources = { { name = 'nvim_lsp' }, },''
              }
              mapping = cmp.mapping.preset.insert({
                ['<C-Space>'] = cmp.mapping.complete(),
                ['<CR>'] = cmp.mapping.confirm({ select = true }),
                ['<C-u>'] = cmp.mapping.scroll_docs(-4),
                ['<C-d>'] = cmp.mapping.scroll_docs(4),
              })
            })
          end
        '';
    }

    {
      dir = vPlug: vPlug.luasnip;
      lazy = true;
    }
  ];
}