local M = {
	'hrsh7th/nvim-cmp',
	dependencies = {
		'neovim/nvim-lspconfig',
		'hrsh7th/cmp-nvim-lsp',
		'hrsh7th/cmp-buffer',
		'hrsh7th/cmp-path',
		'hrsh7th/cmp-cmdline',
		'windwp/nvim-autopairs',
		'onsails/lspkind.nvim',
	},
}

M.config = function()
	local cmp = require 'cmp'
	local cmp_autopairs = require 'nvim-autopairs.completion.cmp'

	cmp.setup {
		window = {
			completion = vim.tbl_deep_extend(
				'force',
				cmp.config.window.bordered(),
				{
					winhighlight = 'Normal:Pmenu,FloatBorder:Pmenu,Search:None',
					col_offset = -3,
					side_padding = -0,
				}
			),
			documentation = cmp.config.window.bordered(),
		},
		formatting = {
			fields = { 'kind', 'abbr', 'menu' },
			format = function(entry, vim_item)
				local kind = require 'lspkind'.cmp_format {
					mode = 'symbol_text',
					maxwidth = 50,
				} (entry, vim_item)
				local strings = vim.split(kind.kind, '%s', { trimempty = true })
				kind.kind = ' ' .. (strings[1] or '') .. ' '
				kind.menu = '    (' .. (strings[2] or '') .. ')'
				return kind
			end
		},
		-- mapping = cmp.mapping.preset.insert {
		mapping = {
			['<c-b>'] = cmp.mapping.scroll_docs(-4),
			['<c-f>'] = cmp.mapping.scroll_docs(4),
			['<c-space>'] = cmp.mapping.complete(),
			['<c-e>'] = cmp.mapping.abort(),
			['<down>'] = cmp.mapping.select_next_item(),
			['<up>'] = cmp.mapping.select_prev_item(),
			['<tab>'] = cmp.mapping.select_next_item(),
			['<s-tab>'] = cmp.mapping.select_prev_item(),
			['<cr>'] = cmp.mapping.confirm { select = true }, -- Accept currently selected item. Set `select` to `false` to only confirm explicitly selected items.
		},
		sources = cmp.config.sources(
			{
				{ name = 'nvim_lsp' },
			},
			{
				{ name = 'buffer' },
			}
		),
		preselect = cmp.PreselectMode.Item,
		experimental = {
			ghost_text = false,
		},
	}

	cmp.event:on(
		'confirm_done',
		cmp_autopairs.on_confirm_done()
	)
end

M.keymap = function()
	local cmp = require 'cmp'
	vim.keymap.set('n', '<leader>a', function()
		if cmp.get_config().completion.autocomplete then
			cmp.setup { completion = { autocomplete = false } }
			vim.notify('Autocomplete off', vim.log.levels.INFO)
		else
			cmp.setup { completion = { autocomplete = { cmp.TriggerEvent.TextChanged } } }
			vim.notify('Autocomplete on', vim.log.levels.INFO)
		end
	end, { desc = 'Toggle autocomplete' })
end

return M