local cmp_status_ok, cmp = pcall(require, "cmp")
if not cmp_status_ok then
	return
end

local lspkind = require("lspkind")
cmp.setup({
	formatting = {
		format = lspkind.cmp_format({
			mode = "symbol", -- show only symbol annotations
			maxwidth = 50, -- prevent the popup from showing more than provided characters (e.g 50 will not show more than 50 characters)
			ellipsis_char = "...", -- when popup menu exceed maxwidth, the truncated part would show ellipsis_char instead (must define maxwidth first)

			-- The function below will be called before any actual modifications from lspkind
			-- so that you can provide more controls on popup customization. (See [#30](https://github.com/onsails/lspkind-nvim/pull/30))
			before = function(entry, vim_item)
				--...
				return vim_item
			end,
		}),
	},
})

require("luasnip/loaders/from_vscode").lazy_load()

--   פּ ﯟ  some other good icons
local kind_icons = {
	Text = "",
	Method = "",
	Function = "",
	Constructor = "⚙️",
	Field = "",
	Variable = "",
	Class = "ﴯ",
	Interface = "",
	Module = "",
	Property = "ﰠ",
	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)
			require("luasnip").lsp_expand(args.body)
		end,
	},
	mapping = cmp.mapping.preset.insert({
		["<C-d>"] = cmp.mapping.scroll_docs(-4),
		["<C-f>"] = cmp.mapping.scroll_docs(4),
		["<C-Space>"] = cmp.mapping.complete(),
		["<C-e>"] = cmp.mapping.close(),
		["<CR>"] = cmp.mapping.confirm({
			behavior = cmp.ConfirmBehavior.Replace,
			select = true,
		}),
	}),
	sources = cmp.config.sources({
		{ name = "path" },
		{ name = "nvim_lsp", keyword_length = 3 },
		{ name = "buffer", keyword_length = 3 },
		{ name = "luasnip", keyword_length = 4 },
		{ name = "cmdline", keyword_pattern = [=[[^[:blank:]\!]*]=], keyword_length = 3 },
		--{ name = "cmdline", keyword_pattern = [=[[^[:blank:]\!]*]=] }, --exclamation mark hangs a bit without this
		--{name = 'luasnip', keyword_length = 2},
	}),
	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 = ({
				nvim_lsp = "[LSP]",
				luasnip = "[Snippet]",
				buffer = "[Buffer]",
				path = "[Path]",
			})[entry.source.name]
			return vim_item
		end,
	},
	confirm_opts = {
		behavior = cmp.ConfirmBehavior.Replace,
		select = false,
	},
	window = {
		documentation = {
			border = { "╭", "─", "╮", "│", "╯", "─", "╰", "│" },
		},
	},
	experimental = {
		ghost_text = true,
		native_menu = false,
		--view = {
		--  entries = "native"
		--},
	},
})

vim.cmd([[
  set completeopt=menuone,noinsert,noselect
  highlight! default link CmpItemKind CmpItemMenuDefault
]])

cmp.setup.cmdline("/", {
	mapping = cmp.mapping.preset.cmdline(),
	sources = {
		{ name = "buffer" },
	},
})

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