dotfiles/.config/nvim/lua/completion.lua

local cmp_status_ok, cmp = pcall(require, "cmp")
	if not cmp_status_ok then
		return
	end
	
	local snip_status_ok, luasnip = pcall(require, "luasnip")
	if not snip_status_ok then
		return
	end
	
	require("luasnip/loaders/from_vscode").lazy_load()
	
	local check_backspace = function()
		local col = vim.fn.col "." - 1
		return col == 0 or vim.fn.getline("."):sub(col, col):match "%s"
	end
	
	--   פּ ﯟ   some other good icons
	local kind_icons = {
		Text = "",
		Method = "m",
		Function = "",
		Constructor = "",
		Field = "",
		Variable = "",
		Class = "",
		Interface = "",
		Module = "",
		Property = "",
		Unit = "",
		Value = "",
		Enum = "",
		Keyword = "",
		Snippet = "",
		Color = "",
		File = "",
		Reference = "",
		Folder = "",
		EnumMember = "",
		Constant = "",
		Struct = "",
		Event = "",
		Operator = "",
		TypeParameter = "",
	}
	-- find more here: https://www.nerdfonts.com/cheat-sheet
	
	cmp.setup {
		snippet = {
			expand = function(args)
				luasnip.lsp_expand(args.body) -- For `luasnip` users.
			end,
		},
		mapping = {
			["<C-k>"] = cmp.mapping.select_prev_item(),
			["<C-j>"] = cmp.mapping.select_next_item(),
			["<C-b>"] = cmp.mapping(cmp.mapping.scroll_docs(-1), { "i", "c" }),
			["<C-f>"] = cmp.mapping(cmp.mapping.scroll_docs(1), { "i", "c" }),
			["<C-Space>"] = cmp.mapping(cmp.mapping.complete(), { "i", "c" }),
			["<C-y>"] = cmp.config.disable, -- Specify `cmp.config.disable` if you want to remove the default `<C-y>` mapping.
			["<C-e>"] = cmp.mapping {
				i = cmp.mapping.abort(),
				c = cmp.mapping.close(),
			},
			-- Accept currently selected item. If none selected, `select` first item.
			-- Set `select` to `false` to only confirm explicitly selected items.
			["<CR>"] = cmp.mapping.confirm { select = false },
			["<Tab>"] = cmp.mapping(function(fallback)
				if cmp.visible() then
					cmp.select_next_item()
				elseif luasnip.expandable() then
					luasnip.expand()
				elseif luasnip.expand_or_jumpable() then
					luasnip.expand_or_jump()
				elseif check_backspace() then
					fallback()
				else
					fallback()
				end
			end, {
				"i",
				"s",
			}),
			["<S-Tab>"] = cmp.mapping(function(fallback)
				if cmp.visible() then
					cmp.select_prev_item()
				elseif luasnip.jumpable(-1) then
					luasnip.jump(-1)
				else
					fallback()
				end
			end, {
				"i",
				"s",
			}),
		},
		formatting = {
			fields = { "kind", "abbr", "menu" },
			format = function(entry, vim_item)
				-- Kind icons
				vim_item.kind = string.format("%s", kind_icons[vim_item.kind])
				-- vim_item.kind = string.format('%s %s', kind_icons[vim_item.kind], vim_item.kind) -- This concatonates the icons with the name of the item kind
				vim_item.menu = ({
					luasnip = "[Snippet]",
					buffer = "[Buffer]",
					path = "[Path]",
				})[entry.source.name]
				return vim_item
			end,
		},
		sources = {
			{ name = "luasnip" },
			{ name = "buffer" },
			{ name = "path" },
		},
		confirm_opts = {
			behavior = cmp.ConfirmBehavior.Replace,
			select = false,
		},
		-- documentation = {
		-- 	border = { "╭", "─", "╮", "│", "╯", "─", "╰", "│" },
		-- },
		-- experimental = {
		-- 	ghost_text = false,
		-- 	native_menu = false,
		-- },
	}