local M = {}

M.config = function()
  O.lang.css = {
    virtual_text = true,
    formatter = {
      exe = "prettier",
      args = {},
    },
  }
end

M.format = function()
  vim.cmd "let proj = FindRootDirectory()"
  local root_dir = vim.api.nvim_get_var "proj"

  -- use the global prettier if you didn't find the local one
  local prettier_instance = root_dir .. "/node_modules/.bin/prettier"
  if vim.fn.executable(prettier_instance) ~= 1 then
    prettier_instance = O.lang.tsserver.formatter.exe
  end

  local ft = vim.bo.filetype
  O.formatters.filetype[ft] = {
    function()
      local args = { "--stdin-filepath", vim.fn.fnameescape(vim.api.nvim_buf_get_name(0)) }
      -- TODO: O.lang.[ft].formatter.args
      local extend_args = O.lang.css.formatter.args

      for i = 1, #extend_args do
        table.insert(args, extend_args[i])
      end

      return {
        exe = prettier_instance,
        args = args,
        stdin = true,
      }
    end,
  }
  require("formatter.config").set_defaults {
    logging = false,
    filetype = O.formatters.filetype,
  }
end

M.lint = function()
  -- TODO: implement linters (if applicable)
  return "No linters configured!"
end

M.lsp = function()
  if not require("lv-utils").check_lsp_client_active "cssls" then
    local capabilities = vim.lsp.protocol.make_client_capabilities()
    capabilities.textDocument.completion.completionItem.snippetSupport = true
    -- npm install -g vscode-css-languageserver-bin
    require("lspconfig").cssls.setup {
      cmd = {
        "node",
        DATA_PATH .. "/lspinstall/css/vscode-css/css-language-features/server/dist/node/cssServerMain.js",
        "--stdio",
      },
      on_attach = require("lsp").common_on_attach,
      capabilities = capabilities,
    }
  end
end

M.dap = function()
  -- TODO: implement dap
  return "No DAP configured!"
end

return M