---
-- Autocompletion config
---
local lsp_zero = require('lsp-zero')
local cmp = require('cmp')
local cmp_action = lsp_zero.cmp_action()

cmp.setup({
	sources = {
		{ name = 'path' },
		{ name = 'nvim_lsp' },
		{ name = 'luasnip', keyword_length = 2 },
		{ name = 'buffer',  keyword_length = 3 },
	},
	mapping = cmp.mapping.preset.insert({
		-- `Enter` key to confirm completion
		['<CR>'] = cmp.mapping.confirm({ select = false }),

		-- Ctrl+Space to trigger completion menu
		['<C-Space>'] = cmp.mapping.complete(),

		-- Navigate between snippet placeholder
		['<C-f>'] = cmp_action.luasnip_jump_forward(),
		['<C-b>'] = cmp_action.luasnip_jump_backward(),

		-- Scroll up and down in the completion documentation
		['<C-u>'] = cmp.mapping.scroll_docs(-4),
		['<C-d>'] = cmp.mapping.scroll_docs(4),
	}),
	snippet = {
		expand = function(args)
			require('luasnip').lsp_expand(args.body)
		end,
	},
})