require('bufferline').setup {
  options = {
    mode = 'buffers',
    numbers = 'ordinal',
    separator_style = 'slant',
    show_buffer_icons = true,
    show_buffer_close_icons = false,
    show_close_icon = false,
    always_show_bufferline = true,
    right_mouse_command = function(bufnum) end,
    middle_mouse_command = function(bufnum)
      require('bufdelete').bufdelete(bufnum)
    end,
    custom_areas = {
      right = function()
        local result = {}
        local seve = vim.diagnostic.severity
        local error = #vim.diagnostic.get(0, {severity = seve.ERROR})
        local warning = #vim.diagnostic.get(0, {severity = seve.WARN})
        local info = #vim.diagnostic.get(0, {severity = seve.INFO})
        local hint = #vim.diagnostic.get(0, {severity = seve.HINT})

        if error ~= 0 then
          table.insert(result, {text = "  " .. error, fg = "#EC5241"})
        end

        if warning ~= 0 then
          table.insert(result, {text = "  " .. warning, fg = "#EFB839"})
        end

        if hint ~= 0 then
          table.insert(result, {text = "  " .. hint, fg = "#A3BA5E"})
        end

        if info ~= 0 then
          table.insert(result, {text = "  " .. info, fg = "#7EA9A7"})
        end
        return result
      end,
    },
    offsets = {
      {
        filetype = "NvimTree",
        text = function()
          return vim.fn.getcwd()
        end,
        highlight = "Directory",
        text_align = "left"
      }
    }
  }
}