local function set_key(mode, keys, v, opts)
	return vim.keymap.set(mode, keys, v, opts)
end

local function on_attach(client, bufnr)
	local bufopts = { noremap = true, silent = true, buffer = bufnr }
	set_key("n", "gD", vim.lsp.buf.declaration, bufopts)
	set_key("n", "gd", vim.lsp.buf.definition, bufopts)
	set_key("n", "K", vim.lsp.buf.hover, bufopts)
	set_key("n", "gi", vim.lsp.buf.implementation, bufopts)
	set_key("n", "gr", vim.lsp.buf.references, bufopts)
	set_key("n", "<C-s>", vim.lsp.buf.signature_help, bufopts)
	set_key("n", "<space>rn", vim.lsp.buf.declaration, bufopts)
	set_key("n", "<space>ca", vim.lsp.buf.code_action, bufopts)
	return bufnr
end

local function setup(f)
	vim.lsp.enable(f)
	return vim.lsp.config(f, { on_attach = on_attach })
end

local function load_all(l)
	for _, v in ipairs(l) do
		setup(v)
	end
	return nil
end

load_all({
	"rust_analyzer",
	"clangd",
	"cssls",
	"html",
	"emmet_ls",
	"pylsp",
	"zls",
	"ts_ls",
	"terraformls",
	"tsp_server",
})

vim.lsp.enable("gopls")
vim.lsp.config("gopls", {
	cmd_env = { GOFLAGS = "-tags=unit,integration,e2e" },
	on_attach = on_attach,
})
vim.lsp.enable("lua_ls")
vim.lsp.config("lua_ls", {
	on_attach = on_attach,
	settings = {
		Lua = {
			diagnostics = {
				globals = { "vim" },
			},
		},
	},
})