local M = {}

local status_cmp_ok, cmp_nvim_lsp = pcall(require, "cmp_nvim_lsp")
if not status_cmp_ok then
  return
end

M.capabilities = vim.lsp.protocol.make_client_capabilities()
M.capabilities.textDocument.completion.completionItem.snippetSupport = true
M.capabilities = cmp_nvim_lsp.default_capabilities(M.capabilities)

M.setup = function()
  local signs = {

    { name = "DiagnosticSignError", text = "" },
    { name = "DiagnosticSignWarn",  text = "" },
    { name = "DiagnosticSignHint",  text = "" },
    { name = "DiagnosticSignInfo",  text = "" },
  }

  for _, sign in ipairs(signs) do
    vim.fn.sign_define(sign.name, { texthl = sign.name, text = sign.text, numhl = "" })
  end

  local config = {
    virtual_text = true, -- disable virtual text
    signs = {
      active = signs,    -- show signs
    },
    update_in_insert = false,
    underline = true,
    severity_sort = true,
    float = {
      focusable = true,
      style = "minimal",
      border = "rounded",
      source = "always",
      header = "",
      prefix = "",
    },
  }

  vim.diagnostic.config(config)

  vim.lsp.handlers["textDocument/hover"] = vim.lsp.with(vim.lsp.handlers.hover, {
    border = "rounded",
  })

  vim.lsp.handlers["textDocument/signatureHelp"] = vim.lsp.with(vim.lsp.handlers.signature_help, {
    border = "rounded",
  })
end

M.on_attach = function(client, bufnr)
  if client.name == "tsserver" then
    client.server_capabilities.documentFormattingProvider = false
  end

  if client.name == "sumneko_lua" then
    client.server_capabilities.documentFormattingProvider = false
  end

end

return M
