local M = {}
_NgConfigValues = {
  debug = false, -- log output not implemented
  code_action_icon = " ",
  width = nil, -- valeu of cols TODO allow float e.g. 0.6
  height = nil,
  on_attach = nil,
  -- function(client, bufnr)
  --   -- your on_attach will be called at end of navigator on_attach
  -- end,
  sumneko_root_path = vim.fn.expand("$HOME") .. "/github/sumneko/lua-language-server",
  sumneko_binary = vim.fn.expand("$HOME") ..
      "/github/sumneko/lua-language-server/bin/macOS/lua-language-server",
  treesitter_call_tree = true,
  code_action_prompt = {enable = true, sign = true, sign_priority = 40, virtual_text = true}
}

vim.cmd("command! -nargs=0 LspLog call v:lua.open_lsp_log()")
vim.cmd("command! -nargs=0 LspRestart call v:lua.reload_lsp()")

local extend_config = function(opts)
  opts = opts or {}
  if next(opts) == nil then return end
  for key, value in pairs(opts) do
    if _NgConfigValues[key] == nil then
      error(string.format("[] Key %s not valid", key))
      return
    end
    if type(M.config_values[key]) == "table" then
      for k, v in pairs(value) do _NgConfigValues[key][k] = v end
    else
      _NgConfigValues[key] = value
    end
  end
end

M.config_values = function() return _NgConfigValues end

M.setup = function(cfg)
  extend_config(cfg)
  -- print("loading navigator")
  require("navigator.lspclient").setup(_NgConfigValues)
  require("navigator.reference")
  require("navigator.definition")
  require("navigator.hierarchy")
  require("navigator.implementation")
  -- log("navigator loader")
  if _NgConfigValues.code_action_prompt.enable then
    vim.cmd [[autocmd CursorHold,CursorHoldI * lua require'navigator.codeAction'.code_action_prompt()]]
  end
  -- vim.cmd("autocmd BufNewFile,BufRead *.go setlocal noexpandtab tabstop=4 shiftwidth=4")
end

return M