require 'test_helper'
require 'vedeu/output/erb_parser'
require 'vedeu/support/helpers'

class UserView
  def initialize
    @output = ''
  end

  def value
    'Testing Vedeu.'
  end

  def interface
    'test'
  end

  def path
    'test/support/template.erb'
  end
end

module Vedeu
  describe ERBParser do
    describe '.parse' do
      it 'parses the template when the template file was found' do
        skip
        parser = ERBParser.parse(UserView.new)
        parser.must_equal("This is the test template.\n\n\e[38;5;55mTesting Vedeu.\n\e[48;5;226mTesting Vedeu.\n\e[38;5;208m\e[48;5;226mTesting Vedeu.\n\e[4mTesting Vedeu.\n\nSome more content...\n")
      end

      it 'parses the template when the template file was found' do
        parser = ERBParser.parse(UserView.new)
        parser.must_equal(
          {
            interfaces: [
              {
                name:  'test',
                lines: [
                  {
                    streams: { text: 'This is the test template.' }
                  }, {
                    streams: { text: '' }
                  }, {
                    streams: { text: "\e[38;5;55mTesting Vedeu." }
                  }, {
                    streams: { text: "\e[48;5;226mTesting Vedeu." }
                  }, {
                    streams: { text: "\e[38;5;208m\e[48;5;226mTesting Vedeu." }
                  }, {
                    streams: { text: "\e[4mTesting Vedeu." }
                  }, {
                    streams: { text: '' }
                  }, {
                    streams: { text: 'Some more content...' }
                  }
                ]
              }
            ]
          }
        )
      end

      it 'raises an exception when the template file cannot be found' do
        user_view = UserView.new
        user_view.stub(:path, '/some/wrong/path/template.erb') do
          proc { ERBParser.parse(user_view) }.must_raise(Errno::ENOENT)
        end
      end

      describe 'colour parsing' do
        it 'parses the template and colour directives within' do
          user_view = UserView.new
          user_view.stub(:path, 'test/support/erb/colour.erb') do
            ERBParser.parse(user_view).must_equal(
              {
                interfaces: [
                  {
                    name:  'test',
                    lines: [
                      {
                        streams: {
                          text: "\e[38;5;52mDark red text on default background."
                        }
                      }, {
                        streams: {
                          text: "\e[48;5;201mDefault text on magenta background."
                        }
                      }, {
                        streams: {
                          text: "\e[38;5;196m\e[48;5;17mRed text on dark blue background."
                        }
                      }
                    ]
                  }
                ]
              }
            )
          end
        end
      end

      describe 'style parsing' do
        it 'parses the template and style directives within' do
          user_view = UserView.new
          user_view.stub(:path, 'test/support/erb/style.erb') do
            ERBParser.parse(user_view).must_equal(
              {
                interfaces: [
                  {
                    name:  'test',
                    lines: [
                      {
                        streams: { text: 'Empty style leads to nothing.' }
                      }, {
                        streams: { text: "\e[4mUnderlined text." }
                      }, {
                        streams: { text: 'Unknown style leads to nothing.' }
                      }
                    ]
                  }
                ]
              }
            )
          end
        end
      end

      describe 'colour and style parsing' do
        it 'parses the template and both colour and style directives within' do
          user_view = UserView.new
          user_view.stub(:path, 'test/support/erb/colour_style.erb') do
            ERBParser.parse(user_view).must_equal(
              {
                interfaces: [
                  {
                    name:  'test',
                    lines: [
                      {
                        streams: {
                          text: "\e[38;5;21m\e[4m\e[48;5;17mBlue underline text on dark blue background."
                        }
                      }
                    ]
                  }
                ]
              }
            )
          end
        end
      end
    end
  end
end