local M = {}

local function on_attach(client, bufnr)
  -- Enable completion triggered by <C-X><C-O>
  -- See `:help omnifunc` and `:help ins-completion` for more information.
  vim.api.nvim_buf_set_option(bufnr, "omnifunc", "v:lua.vim.lsp.omnifunc")

  -- Use LSP as the handler for formatexpr.
  -- See `:help formatexpr` for more information.
  vim.api.nvim_buf_set_option(0, "formatexpr", "v:lua.vim.lsp.formatexpr()")

  -- Configure key mappings
  require("config.lsp.keymaps").setup(client, bufnr)
end

local lsp_signature = require "lsp_signature"
lsp_signature.setup {
  bind = true,
  handler_opts = {
    border = "rounded",
  },
}

local capabilities = require("cmp_nvim_lsp").default_capabilities(vim.lsp.protocol.make_client_capabilities())

local opts = {
  on_attach = on_attach,
  capabilities = capabilities,
  flags = {
    debounce_text_changes = 150,
  },
};

local servers = {
  gopls = opts,
  html = opts,
  jsonls = opts,
  pyright = opts,
  tsserver = opts,
  vimls = opts,
  dartls = opts,
  dockerls = opts,
  intelephense = opts,
  sqlls = opts,
  vuels = {
      on_attach = on_attach,
      capabilities = capabilities,
      flags = {
        debounce_text_changes = 150,
      },
      init_options = {
          config = {
              vetur = {
                ignoreProjectWarning = true,
              }
          }
      },
  },
  volar = {
    filetypes = {'typescript', 'javascript', 'vue', 'json'},
    init_options = {
        typescript = {
            tsdk = '/usr/lib/node_modules/typescript/lib'
        }
    }
  }
}

function M.setup()
  for server_name, o in pairs(servers) do
      require('lspconfig')[server_name].setup(o)
  end
end

return M