nix-config/home/base/server/neovim/lua/plugins/cmp.lua

return {
	"hrsh7th/nvim-cmp",
	event = "InsertEnter",
	dependencies = {
		"rafamadriz/friendly-snippets",
		"hrsh7th/cmp-nvim-lsp",
		"hrsh7th/cmp-buffer",
		"L3MON4D3/LuaSnip",
		"saadparwaiz1/cmp_luasnip",
		"hrsh7th/cmp-nvim-lua",
		"hrsh7th/cmp-path",
		"hrsh7th/cmp-cmdline",
	},
	config = function()
		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 kind_icons = {
			Text = "󰊄",
			Method = "",
			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 = cmp.mapping.preset.insert({
				["<C-u>"] = cmp.mapping.scroll_docs(-4), -- Up
				["<C-d>"] = cmp.mapping.scroll_docs(4), -- Down
				-- C-b (back) C-f (forward) for snippet placeholder navigation.
				["<C-Space>"] = cmp.mapping.complete(),
				["<CR>"] = cmp.mapping.confirm({
					select = true,
				}),
				["<Tab>"] = cmp.mapping(function(fallback)
					if cmp.visible() then
						cmp.select_next_item()
					elseif luasnip.expand_or_jumpable() then
						luasnip.expand_or_jump()
					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 = ({
						path = "[Path]",
						nvim_lua = "[NVIM_LUA]",
						nvim_lsp = "[LSP]",
						luasnip = "[Snippet]",
						buffer = "[Buffer]",
					})[entry.source.name]
					return vim_item
				end,
			},
			sources = {
				{ name = "path" },
				{ name = "nvim_lua" },
				{ name = "nvim_lsp" },
				{ name = "luasnip" },
				{ name = "buffer" },
			},
			confirm_opts = {
				behavior = cmp.ConfirmBehavior.Replace,
				select = false,
			},
			window = {
				completion = cmp.config.window.bordered(),
				documentation = cmp.config.window.bordered(),
			},
			experimental = {
				ghost_text = false,
				native_menu = false,
			},
		})

		cmp.setup.cmdline(":", {
			mapping = cmp.mapping.preset.cmdline(),
			sources = cmp.config.sources({
				{ name = "path" },
			}, {
				{ name = "cmdline" },
			}),
		})
	end,
}