local function config()
	local signs = {
		{ name = 'DiagnosticSignError', text = '' },
		{ name = 'DiagnosticSignWarn', text = '' },
		{ name = 'DiagnosticSignHint', text = '' },
		{ name = 'DiagnosticSignInfo', text = '' },
	}

	for _, sign in ipairs(signs) do
		vim.fn.sign_define(sign.name, { texthl = sign.name, text = sign.text, numhl = '' })
	end

	vim.diagnostic.config({
		virtual_text = false,
		signs = {
			active = signs,
		},
		update_in_insert = true,
		underline = true,
		severity_sort = true,
		float = {
			focusable = false,
			style = 'minimal',
			border = 'rounded',
			source = 'always',
			header = '',
			prefix = '',
		},
	})

	vim.lsp.handlers['textDocument/hover'] = vim.lsp.with(vim.lsp.handlers.hover, {
		border = 'rounded',
	})

	vim.lsp.handlers['textDocument/signatureHelp'] = vim.lsp.with(vim.lsp.handlers.signature_help, {
		border = 'rounded',
	})

	vim.lsp.handlers['textDocument/publishDiagnostics'] = vim.lsp.with(vim.lsp.diagnostic.on_publish_diagnostics, {
		virtual_text = false,
	})

	local lspconfig = require('lspconfig')

	local function lsp_keymaps(bufnr)
		local opts = { noremap = true, silent = true }
		vim.api.nvim_buf_set_keymap(bufnr, 'n', 'K', '<cmd>lua vim.lsp.buf.hover()<CR>', opts)
		vim.api.nvim_buf_set_keymap(bufnr, 'n', 'gD', '<cmd>lua vim.lsp.buf.declaration()<CR>', opts)
		vim.api.nvim_buf_set_keymap(bufnr, 'n', 'gd', '<cmd>lua vim.lsp.buf.definition()<CR>', opts)
		vim.api.nvim_buf_set_keymap(bufnr, 'n', 'gi', '<cmd>lua vim.lsp.buf.implementation()<CR>', opts)
		vim.api.nvim_buf_set_keymap(bufnr, 'n', 'go', '<cmd>lua vim.diagnostic.open_float()<CR>', opts)
		vim.api.nvim_buf_set_keymap(bufnr, 'n', '[d', '<cmd>lua vim.diagnostic.goto_prev({ border = "rounded" })<CR>', opts)
		vim.api.nvim_buf_set_keymap(bufnr, 'n', ']d', '<cmd>lua vim.diagnostic.goto_next({ border = "rounded" })<CR>', opts)
		vim.api.nvim_buf_set_keymap(bufnr, 'n', '<leader>lf', '<cmd>lua vim.lsp.buf.format()<CR>', opts)
		--vim.cmd [[ command! Format execute 'lua vim.lsp.buf.formatting()' ]]
	end

	local on_attach = function(client, bufnr)
		lsp_keymaps(bufnr)
	end

	-- lua-language-server
	-- pacman -S lua-language-server
	lspconfig.lua_ls.setup({
		on_attach = on_attach,
		settings = {
			Lua = {
				format = {
					enable = false,
				},
				diagnostics = {
					globals = { 'vim' },
				},
				workspace = {
					library = {
						-- include neovim runtime files
						[vim.fn.expand('$VIMRUNTIME/lua')] = true,
						[vim.fn.expand('$VIMRUNTIME/lua/vim/lsp')] = true,
					},
					checkThirdParty = false, -- disable "do you want to set up the workspace"
				},
				telemetry = {
					enable = false,
				},
			},
		},
	})

	-- vim.g.python3_host_prog = '/home/peters/src/invsys/docker-path/python'
	-- pyright
	-- pip install pyright
	lspconfig.pyright.setup({
		-- cmd = { '/home/peters/src/invsys/docker-path/pyright-langserver', '--stdio' },
		-- cmd = { 'pyright-langserver', '--stdio' },
		on_attach = on_attach,
		root_dir = require('lspconfig.util').root_pattern('pyproject.toml'),
		settings = {
			python = {
				analysis = {
					autoSearchPaths = true,
					useLibraryCodeForTypes = false,
					diagnosticMode = 'openFilesOnly',
				},
			},
		},
	})

	-- pip install ruff ruff-lsp
	lspconfig.ruff_lsp.setup({
		on_attach = on_attach,
		init_options = {
			settings = {
				args = {
					-- disable distracting whitespace rules
					'--ignore',
					'W291,W293',
				},
			},
		},
	})

	-- vscode-json-language-server
	-- npm i -g vscode-langservers-extracted
	lspconfig.jsonls.setup({
		on_attach = on_attach,
	})

	-- typescript-language-server
	-- npm i -g typescript-language-server
	lspconfig.tsserver.setup({
		on_attach = on_attach,
	})

	-- rustup
	lspconfig.rust_analyzer.setup({
		on_attach = on_attach,
	})
end

return config