local execute = vim.api.nvim_command
local fn = vim.fn

local install_path = fn.stdpath('data') .. '/site/pack/packer/start/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

--- Check if a file or directory exists in this path
local function require_plugin(plugin)
    local plugin_prefix = fn.stdpath('data') .. '/site/pack/packer/opt/'

    local plugin_path = plugin_prefix .. plugin .. '/'
    --	print('test '..plugin_path)
    local ok, err, code = os.rename(plugin_path, plugin_path)
    if not ok then
        if code == 13 then
            -- Permission denied, but it exists
            return true
        end
    end
    --	print(ok, err, code)
    if ok then vim.cmd('packadd ' .. plugin) end
    return ok, err, code
end

vim.cmd 'autocmd BufWritePost plugins.lua PackerCompile' -- Auto compile when there are changes in plugins.lua

return require('packer').startup(function(use)
    -- Packer can manage itself as an optional plugin
    use 'wbthomason/packer.nvim'

    -- TODO refactor all of this (for now it works, but yes I know it could be wrapped in a simpler function)
    use {'neovim/nvim-lspconfig', opt=true}
    use {'glepnir/lspsaga.nvim', opt=true}
    use {'onsails/lspkind-nvim', opt=true}
    use {'kabouzeid/nvim-lspinstall', opt=true}

    -- Tlescope
    use {'nvim-lua/popup.nvim', opt=true}
    use {'nvim-lua/plenary.nvim', opt=true}
    use {'nvim-telescope/telescope.nvim', opt=true}

    -- Dbugging
    use {'mfussenegger/nvim-dap', opt=true}

    -- Atocomplete
    use {'hrsh7th/nvim-compe', opt=true}
    use {'hrsh7th/vim-vsnip', opt=true}
    use {"rafamadriz/friendly-snippets", opt=true}

    -- Teesitter
    use {'nvim-treesitter/nvim-treesitter', run = ':TSUpdate'}
    use {'windwp/nvim-ts-autotag', opt=true}

    -- Eplorer
    use 'kyazdani42/nvim-tree.lua'
    -- TODO remove when open on dir is supported by nvimtree
    use 'kevinhwang91/rnvimr'

-- use {'lukas-reineke/indent-blankline.nvim', opt=true, branch = 'lua'}
    use {'lewis6991/gitsigns.nvim', opt = true}
    use {'liuchengxu/vim-which-key', opt = true}
    use {'ChristianChiarulli/dashboard-nvim', opt = true}
    use {'windwp/nvim-autopairs', opt = true}
    use {'terrortylor/nvim-comment', opt = true}
    use {'kevinhwang91/nvim-bqf', opt = true}

    -- Color
    use {'christianchiarulli/nvcode-color-schemes.vim', opt = true}

    -- Icons
    use {'kyazdani42/nvim-web-devicons', opt = true}

    -- Status Line and Bufferline
    use {'glepnir/galaxyline.nvim', opt = true}
    use {'romgrk/barbar.nvim', opt = true}

    require_plugin('nvim-lspconfig')
    require_plugin('lspsaga.nvim')
    require_plugin('lspkind-nvim')
    require_plugin('nvim-lspinstall')
    require_plugin('popup.nvim')
    require_plugin('plenary.nvim')
    require_plugin('telescope.nvim')
    require_plugin('nvim-dap')
    require_plugin('nvim-compe')
    require_plugin('vim-vsnip')
    require_plugin('nvim-treesitter')
    require_plugin('nvim-ts-autotag')
    require_plugin('nvim-tree.lua')
    require_plugin('gitsigns.nvim')
    require_plugin('vim-which-key')
    require_plugin('dashboard-nvim')
    require_plugin('nvim-autopairs')
    require_plugin('nvim-comment')
    require_plugin('nvim-bqf')
    require_plugin('nvcode-color-schemes.vim')
    require_plugin('nvim-web-devicons')
    require_plugin('galaxyline.nvim')
    require_plugin('barbar.nvim')
end)