local on_attach = function(_, bufnr)
	local bufmap = function(keys, func)
		vim.keymap.set("n", keys, func, { buffer = bufnr })
	end

	bufmap("<leader>r", vim.lsp.buf.rename)
	bufmap("<leader>a", vim.lsp.buf.code_action)

	bufmap("gd", vim.lsp.buf.definition)
	bufmap("gD", vim.lsp.buf.declaration)
	bufmap("gI", vim.lsp.buf.implementation)
	bufmap("<leader>D", vim.lsp.buf.type_definition)

	bufmap("gr", require("telescope.builtin").lsp_references)
	bufmap("<leader>s", require("telescope.builtin").lsp_document_symbols)
	bufmap("<leader>S", require("telescope.builtin").lsp_dynamic_workspace_symbols)

	bufmap("K", vim.lsp.buf.hover)

	vim.api.nvim_buf_create_user_command(bufnr, "Format", function(_)
		vim.lsp.buf.format()
	end, {})
end

local capabilities = vim.lsp.protocol.make_client_capabilities()
capabilities = require("cmp_nvim_lsp").default_capabilities(capabilities)

require("lspconfig").lua_ls.setup({
	on_attach = on_attach,
	capabilities = capabilities,
	root_dir = function()
		return vim.loop.cwd()
	end,
	settings = {
		Lua = {
			workspace = { checkThirdParty = false },
			telemetry = { enable = false },
		},
	},
})

require("lspconfig").nixd.setup({
	on_attach = on_attach,
	capabilities = capabilities,
})

require("lspconfig").ts_lsp.setup({
	on_attach = on_attach,
	capabilities = capabilities,
})

require("lspconfig").eslint.setup({
	settings = {
		packageManager = "yarn",
	},
	on_attach = function(client, bufnr)
		vim.api.nvim_create_autocmd("BufWritePre", {
			buffer = bufnr,
			command = "EslintFixAll",
		})
		vim.api.nvim_create_autocmd("BufWritePost", {
			callback = function()
				vim.lsp.buf.format()
			end,
		})
	end,
})

require("lspconfig").clangd.setup({
	on_attach = function(client, bufnr)
		client.server_capabilities.signatureHelpProvider = false
		on_attach(client, bufnr)
	end,
	capabilities = capabilities,
})