require 'simple_pvr'

module SimplePvr
  describe HDHomeRun do
    before do
      @pipe = double('pipe')
      IO.should_receive(:popen).with('hdhomerun_config discover').and_yield(@pipe)
      FileUtils.stub(:exists? => false)
    end
  
    context 'when initializing' do
      it 'discovers a device when present' do
        @pipe.stub(:read => 'hdhomerun device ABCDEF01 found at 10.0.0.4')
  
        HDHomeRun.new.device_id.should == 'ABCDEF01'
      end
    
      it 'raises an exception when no device is present' do
        @pipe.stub(:read => 'no devices found')
  
        expect { HDHomeRun.new }.to raise_error(Exception, 'No device found: no devices found')
      end
    end
    
    context 'when initialized' do
      before do
        @pipe.stub(:read => 'hdhomerun device ABCDEF01 found at 10.0.0.4')
        @hdhomerun = HDHomeRun.new
        @hdhomerun.stub(:tuner_control_file).with(0).and_return('tuner0.lock')
        @hdhomerun.stub(:tuner_control_file).with(1).and_return('tuner1.lock')
        @file = File.open(File.dirname(__FILE__) + '/../resources/channels.txt', 'r:UTF-8')
      end
      
      after do
        @file.close
      end
    
      it 'can do a channel scan' do
        @hdhomerun.should_receive(:system).with('hdhomerun_config ABCDEF01 scan /tuner0 channels.txt')
        Model::Channel.should_receive(:clear)
        File.should_receive(:open).with('channels.txt', 'r:UTF-8').and_yield(@file)
        Model::Channel.should_receive(:add).with('DR K', 282000000, 1098)
        Model::Channel.should_receive(:add).with('DR HD', 282000000, 1165)
  
        @hdhomerun.scan_for_channels
      end
      
      it 'can start recording on one tuner' do
        @hdhomerun.should_receive(:system).with("hdhomerun_config ABCDEF01 set /tuner0/channel auto:282000000")
        @hdhomerun.should_receive(:system).with("hdhomerun_config ABCDEF01 set /tuner0/program 1098")
        @hdhomerun.should_receive(:spawn) #... with a lot of arguments ...
        FileUtils.should_receive(:touch).with('tuner0.lock')
        
        @hdhomerun.start_recording(0, 282000000, 1098, 'test directory')
      end
      
      it 'can stop recording on one tuner' do
        @hdhomerun.stub(:system)
        @hdhomerun.stub(:spawn => 32)
        
        FileUtils.should_receive(:touch).with('tuner0.lock')
        FileUtils.should_receive(:rm).with('tuner0.lock')
        Process.should_receive(:wait).with(32)
        @hdhomerun.should_receive(:system).with("hdhomerun_config ABCDEF01 set /tuner0/channel none")
  
        @hdhomerun.start_recording(0, 282000000, 1098, 'test directory')
        @hdhomerun.stop_recording(0)
      end
      
      it 'can start and stop recording on another tuner' do
        @hdhomerun.should_receive(:system).with("hdhomerun_config ABCDEF01 set /tuner1/channel auto:282000000")
        @hdhomerun.should_receive(:system).with("hdhomerun_config ABCDEF01 set /tuner1/program 1098")
        @hdhomerun.stub(:spawn => 32)
        FileUtils.should_receive(:touch).with('tuner1.lock')
        FileUtils.should_receive(:rm).with('tuner1.lock')
        Process.should_receive(:wait).with(32)
        @hdhomerun.should_receive(:system).with("hdhomerun_config ABCDEF01 set /tuner1/channel none")
  
        @hdhomerun.start_recording(1, 282000000, 1098, 'test directory')
        @hdhomerun.stop_recording(1)
      end
    end
  end
end