-- ~/.config/nvim/lua/config/lsp.lua
return function()
	-- Shared settings✖
	local cmp_ok, cmp_nvim_lsp = pcall(require, "cmp_nvim_lsp")
	local capabilities = vim.lsp.protocol.make_client_capabilities()
	if cmp_ok then
		capabilities = cmp_nvim_lsp.default_capabilities(capabilities)
	end

	local on_attach = function(client, bufnr)
		local opts = { noremap = true, silent = true, buffer = bufnr }
		vim.keymap.set("n", "gd", vim.lsp.buf.definition, opts)
		vim.keymap.set("n", "K", vim.lsp.buf.hover, opts)
		vim.keymap.set("n", "<leader>rn", vim.lsp.buf.rename, opts)
		vim.keymap.set("n", "gr", vim.lsp.buf.references, opts)
		vim.keymap.set("n", "<leader>ca", vim.lsp.buf.code_action, opts)
		-- Normal mode: show diagnostics in a floating window
		vim.keymap.set('n', '<leader>d', vim.diagnostic.open_float, { noremap=true, silent=true })

	end

	-- Server‑specific configurations
	local servers = {
		lua_ls = {
			settings = {
				Lua = {
					diagnostics = { globals = { "vim" } },
					workspace   = { library = vim.api.nvim_get_runtime_file("", true) },
					telemetry   = { enable = false },
				},
			},
		},
		ts_ls = {},
		texlab = {
			settings = {
				texlab = {
					auxDirectory = "build",
					build = {
						executable = "latexmk",
						args       = { "-pdf", "-interaction=nonstopmode", "-synctex=1", "%f" },
						onSave     = true,
					},
					forwardSearch = {
						executable = "zathura",
						args       = { "--synctex-forward", "%l:1:%f", "%p" },
					},
				},
			},
		},
		clangd         = {},  -- C & C++
		pyright        = {},  -- Python
		rust_analyzer  = {},  -- Rust
		zls            = {},  -- Zig
		hls            = {},  -- Haskell
		-- jdtls handled by nvim-jdtls plugin
		asm_lsp        = {},  -- Assembly (if you install it)
		clojure_lsp    = {},  -- Clojure
		racket_langserver = {},  -- Racket (Scheme dialect)
	}

	for name, cfg in pairs(servers) do
		-- Use the new api
		vim.lsp.config(name, {
			on_attach    = on_attach,
			capabilities = capabilities,
			settings     = cfg.settings,
			root_dir     = cfg.root_dir,  -- optional if you have special root logic
		})
		vim.lsp.enable(name)

		-- Diagnostic Icons
		vim.diagnostic.config({
			signs = {
				active = true,  -- enable signs
				text = {
					[vim.diagnostic.severity.ERROR] = "✖",
					[vim.diagnostic.severity.WARN]  = "",
					[vim.diagnostic.severity.INFO]  = "",
					[vim.diagnostic.severity.HINT]  = "",  -- lightbulb for hint
				},
			},
			-- virtual_text = {
			--   prefix = "●GAY●",
			-- },
			underline = true,
			severity_sort = true,
			virtual_text = true,  -- inline messages
			signs = true,         -- show signs in the gutter
			underline = true,     -- underline errors/warnings
			update_in_insert = false,
			-- severity_sort = true,
		})

		-- local signs = { Error = "✖", Warn = "", Hint = "", Info = "" }
		-- for type, icon in pairs(signs) do
		--   local hl = "DiagnosticSign" .. type
		--   vim.fn.sign_define(hl, { text = icon, texthl = hl, numhl = "" })
		-- end

				-- Use Nerd Font symbols for diagnostics
		-- vim.fn.sign_define("DiagnosticSignError", {text = "✖", texthl = "DiagnosticError"}) -- x-mark
		-- vim.fn.sign_define("DiagnosticSignWarn",  {text = "", texthl = "DiagnosticWarn"})  -- warning triangle
		-- vim.fn.sign_define("DiagnosticSignInfo",  {text = "", texthl = "DiagnosticInfo"})  -- info circle
		-- vim.fn.sign_define("DiagnosticSignHint",  {text = "", texthl = "DiagnosticHint"})  -- lightbulb


		lualine_x = {
			{
				"diagnostics",
				sources = {"nvim_lsp"},
				sections = {"error", "warn", "info", "hint"},
				symbols = { error = " ", warn = " ", info = " ", hint = " " },
			}
		}

	end
end