-- Disable banner
vim.g.netrw_banner = 0

-- Fix gx when running inside WSL
if vim.env.WSLENV then
  vim.g.netrw_browsex_viewer = 'cmd.exe /C start'
end

-- Map - key to open netrw in current files parent directory
vim.keymap.set('n', '-', function()
  -- Get the filename before invoking netrw
  local filename = vim.fn.expand('%:t')
  local directory = vim.fn.expand('%:hp')

  if directory == '' then
    directory = vim.fn.getcwd()
  end

  -- Invoke netrw on the directory containing the current file
  vim.fn.execute(string.format("edit %s", directory))

  if filename ~= '' then
    -- In the netrw buffer, move the cursor to the first character of filename
    local buffer = vim.api.nvim_get_current_buf()
    local lines = vim.api.nvim_buf_get_lines(buffer, 0, -1, true)
    for row, content in ipairs(lines) do
      local column = string.find(content, filename)
      if column then
        vim.api.nvim_win_set_cursor(0, { row, column - 1 })
        break
      end
    end
  end
end)