local cmp = require("cmp")
local lspkind = require "lspkind"
require("custom.snippets")

cmp.setup({
	preselect = cmp.PreselectMode.None,
	completion = {
		completeopt = "menu,menuone,noinsert",
	},
	mapping = cmp.mapping.preset.insert({
		["<C-n>"] = cmp.mapping.select_next_item({ behavior = cmp.SelectBehavior.Insert }),
		["<C-p>"] = cmp.mapping.select_prev_item({ behavior = cmp.SelectBehavior.Insert }),
		["<C-u>"] = cmp.mapping.scroll_docs(-4),
		["<C-d>"] = cmp.mapping.scroll_docs(4),
		["<C-e>"] = cmp.mapping.abort(),
		['<C-g>'] = function()
			if cmp.visible_docs() then
				cmp.close_docs()
			else
				cmp.open_docs()
			end
		end,
		["<CR>"] = cmp.mapping.confirm({
			behavior = cmp.ConfirmBehavior.Insert,
			select = true,
		}, { "i", "c" }),
	}),
	-- Enable luasnip to handle snippet expansion for nvim-cmp
	snippet = {
		expand = function(args)
			vim.snippet.expand(args.body)
		end,
	},
	sources = cmp.config.sources({
		{ name = "nvim_lsp" },
		{ name = "path" },
		{ name = "luasnip" },
		{ name = "buffer",  group_index = 10 },
		{ name = "lazydev", group_index = 0, }
	}),
	formatting = {
		expandable_indicator = true,
		fields = { "kind", "abbr", "menu" },
		format = lspkind.cmp_format({
			mode = 'symbol_text',
			maxwidth = 50,
			ellipsis_char = '...',
			show_labelDetails = true,
			before = function(entry, vim_item)
				vim_item.menu = ({
					buffer = "[Buffer]",
					nvim_lsp = "[LSP]",
					luasnip = "[Snippet]",
					path = "[Path]",
					lazydev = "[Lazy]",
				})[entry.source.name]
				return vim_item
			end
		})
	}
})