vim.opt.completeopt = { "menuone", "noselect", "popup" }
vim.lsp.config['lua_ls'] = {
	-- Command and arguments to start the server.
	cmd = { 'lua-language-server' },
	-- Filetypes to automatically attach to.
	filetypes = { 'lua' },
	-- Sets the "workspace" to the directory where any of these files is found.
	-- Files that share a root directory will reuse the LSP server connection.
	-- Nested lists indicate equal priority, see |vim.lsp.Config|.
	root_markers = { { '.luarc.json', '.luarc.jsonc' }, '.git' },
	-- Specific settings to send to the server. The schema is server-defined.
	-- Example: https://raw.githubusercontent.com/LuaLS/vscode-lua/master/setting/schema.json
	settings = {
		Lua = {
			runtime = {
				version = 'LuaJIT',
			}
		}
	}
}
vim.lsp.config['clangd'] = {
	cmd = { 'clangd' },
	filetypes = { 'c', 'cpp', 'objc', 'objcpp', 'cuda' },
	root_markers = {
		--'.clangd',
		--'.clang-tidy',
		--'.clang-format',
		--'compile_commands.json',
		--'compile_flags.txt',
		--'configure.ac', -- AutoTools
		'.git',
	},
	capabilities = {
		textDocument = {
			completion = {
				editsNearCursor = true,
			},
		},
		offsetEncoding = { 'utf-8', 'utf-16' },
	},
	vim.keymap.set("i", "<C-space>", vim.lsp.completion.get, { desc = "trigger autocompletion" })

}
vim.lsp.enable('lua_ls')
vim.lsp.enable('clangd')

vim.api.nvim_create_autocmd('LspAttach', {
	group = vim.api.nvim_create_augroup('my.lsp', {}),
	callback = function(args)
	local client = assert(vim.lsp.get_client_by_id(args.data.client_id))
	-- Enable auto-completion. Note: Use CTRL-Y to select an item. |complete_CTRL-Y|
	if client:supports_method('textDocument/completion') then
		-- Optional: trigger autocompletion on EVERY keypress. May be slow!
		local chars = {}; for i = 32, 126 do table.insert(chars, string.char(i)) end
		client.server_capabilities.completionProvider.triggerCharacters = chars
		vim.lsp.completion.enable(true, client.id, args.buf, {autotrigger = true})
		end
	end,
})

-- open autocomplete menu when pressing <C-n>
vim.keymap.set('i', '<C-g>', function()
    vim.lsp.completion.get()
end)