require 'vimrunner'
require 'vimrunner/rspec'

RSpec.configure do |config|
  # reset globals to default values before each test
  config.before(:each) do
    vim.command 'let g:ruby_indent_access_modifier_style = "normal"'
    vim.command 'let g:ruby_indent_block_style = "do"'
    vim.command 'let g:ruby_indent_assignment_style = "hanging"'
    vim.command 'let g:ruby_indent_hanging_elements = 1'
  end
end

Vimrunner::RSpec.configure do |config|
  config.reuse_server = true

  config.start_vim do
    vim = Vimrunner.start_gvim
    vim.prepend_runtimepath(File.expand_path('../..', __FILE__))
    vim.add_plugin(File.expand_path('../vim', __FILE__), 'plugin/syntax_test.vim')
    vim.set 'expandtab'
    vim.set 'shiftwidth', 2
    vim
  end

  def assert_correct_indenting(extension='rb', string)
    filename = "test.#{extension}"

    IO.write filename, string

    vim.edit filename
    vim.normal 'gg=G'
    vim.write

    expect(IO.read(filename)).to eq string
  end

  def assert_correct_indent_in_insert(extension='rb', content, input, result)
    filename = "test.#{extension}"

    IO.write filename, content

    vim.edit filename
    vim.normal 'Go'
    vim.feedkeys input
    vim.write

    expect(IO.read(filename)).to eq result
  end

  def assert_correct_highlighting(extension='rb', string, patterns, group)
    filename = "test.#{extension}"

    IO.write filename, string

    vim.edit filename

    Array(patterns).each do |pattern|
      # TODO: add a custom matcher
      expect(vim.echo("TestSyntax('#{pattern}', '#{group}')")).to eq '1'
    end
  end
end