local vim = vim
local execute = vim.api.nvim_command
local fn = vim.fn
local install_path = fn.stdpath('data')..'/site/pack/packer/opt/packer.nvim'

if fn.empty(fn.glob(install_path)) > 0 then
  execute('!git clone https://github.com/wbthomason/packer.nvim '..install_path)
  execute 'packadd packer.nvim'
end

vim.cmd('packadd packer.nvim')
local packer = require'packer'
local util = require'packer.util'
packer.init({
    package_root = util.join_paths(vim.fn.stdpath('data'), 'site', 'pack')
  })

local key_mapper = function(mode, key, result)
  vim.api.nvim_set_keymap(
    mode,
    key,
    result,
    {noremap = true, silent = true}
    )
end
vim.g.mapleader = ' '

--- startup and add configure plugins
packer.startup(function()
  local use = use
  -- add you plugins here like:
  -- use 'neovim/nvim-lspconfig'

  use 'nvim-treesitter/nvim-treesitter'
  use 'sheerun/vim-polyglot'
  use { "ellisonleao/gruvbox.nvim" }
  use {'prettier/vim-prettier', run = 'yarn install' }
  use 'nvim-lua/popup.nvim'
  use 'nvim-lua/plenary.nvim'
  use 'nvim-lua/telescope.nvim'
  use 'jremmen/vim-ripgrep'
  use {
    'nvim-tree/nvim-tree.lua',
    requires = {
      'nvim-tree/nvim-web-devicons', -- optional, for file icons
    },
    tag = 'nightly' -- optional, updated every week. (see issue #1193)
  }
  use {
    "windwp/nvim-autopairs",
    config = function() require("nvim-autopairs").setup {} end
  }
end
)

local configs = require'nvim-treesitter.configs'
configs.setup {
  ensure_installed = "cpp",
  highlight = {
    enable = true,
  }
}

key_mapper('n', '<C-p>', ':lua require"telescope.builtin".find_files()<CR>')
key_mapper('n', '<leader>fs', ':lua require"telescope.builtin".live_grep()<CR>')
key_mapper('n', '<leader>fh', ':lua require"telescope.builtin".help_tags()<CR>')
key_mapper('n', '<leader>fb', ':lua require"telescope.builtin".buffers()<CR>')
key_mapper('n', '<leader>ft', ':NvimTreeToggle<CR>')
-- examples for your init.lua

-- disable netrw at the very start of your init.lua (strongly advised)
vim.g.loaded_netrw = 1
vim.g.loaded_netrwPlugin = 1

-- set termguicolors to enable highlight groups
vim.opt.termguicolors = true

-- empty setup using defaults
require("nvim-tree").setup()

-- OR setup with some options
require("nvim-tree").setup({
    sort_by = "case_sensitive",
    view = {
      adaptive_size = true,
      mappings = {
        list = {
          { key = "u", action = "dir_up" },
        },
      },
    },
    renderer = {
      group_empty = true,
    },
    filters = {
      dotfiles = true,
    },
  })