---@type vim.lsp.Config
return {
    settings = {
        emmylua = {
            diagnostics = {
                disable = {
                    "unnecessary-if",
                    "preferred-local-alias",
                    "redefined-local",
                },
            },
            format = {
                -- Re-enable once luafmt is integrated in server
                -- useDiff = true,
            },
            hint = {
                enable = false,
            },
        },
    },
    ---@param config vim.lsp.ClientConfig
    before_init = function(_, config)
        ---@param path string|string[]
        ---@return string?
        local function realpath(path)
            ---@type string?
            local p
            if type(path) == "table" then
                p = path[1]
            else
                p = path
            end
            return p and vim.uv.fs_realpath(p) or p
        end
        local config_root = realpath(vim.fn.stdpath("config"))
        local folder = config.workspace_folders and config.workspace_folders[1]
        local root = config.root_dir or (folder and folder.name)
        if root and realpath(root) == config_root then
            local lib = { vim.env.VIMRUNTIME }
            vim.list_extend(lib, require("pack").get_paths())
            ---@cast config.settings table
            config.settings.emmylua =
                vim.tbl_deep_extend("force", config.settings.emmylua or {}, {
                    workspace = { library = lib },
                })
        end
    end,
    on_attach = function(_, bufnr)
        local util = require("util")

        vim.keymap.set("n", "<leader>lf", function()
            util.format({
                buf = bufnr,
                cmd = {
                    "stylua",
                    "--stdin-filepath",
                    "%file%",
                    "-",
                },
                output = "stdout",
            })
        end, { buffer = bufnr })

        vim.keymap.set("x", "<leader>lf", function()
            util.format({
                buf = bufnr,
                cmd = {
                    "stylua",
                    "--range-start",
                    "%byte_start%",
                    "--range-end",
                    "%byte_end%",
                    "--stdin-filepath",
                    "%file%",
                    "-",
                },
                output = "stdout",
            })
        end, { buffer = bufnr })
    end,
}