require 'simple_pvr'

module SimplePvr::Model
  describe Channel do
    before :all do
      DatabaseInitializer.prepare_for_test
    end
    
    before :each do
      DatabaseInitializer.clear
    end
    
    it 'can insert channels' do
      3.times {|i| Channel.add("Channel #{i}", 23000000, 1098) }
  
      Channel.all.length.should == 3
    end
  
    it 'can clear channels' do
      3.times {|i| Channel.add("Channel #{i}", 23000000, 1098) }
      Channel.clear
    
      Channel.all.length.should == 0
    end
  
    it 'clears all programmes when clearing channels' do
      channel = Channel.add("DR 1", 23000000, 1098)
      3.times { Programme.add(channel, 'Title', 'Subtitle', 'Description', Time.local(2012, 7, 17, 20, 30), 50.minutes, nil) }
      Channel.clear
  
      Programme.all.length.should == 0
    end
    
    it 'can find channels' do
      Channel.add('Known channel', 23000000, 1098)
      
      channel = Channel.with_name('Known channel')
      channel.name.should == 'Known channel'
      channel.frequency.should == 23000000
      channel.channel_id.should == 1098
    end
  
    it 'complains when asked for non-existing channel' do
      expect { Channel.with_name('unknown') }.to raise_error "Unknown channel: 'unknown'"
    end
    
    it 'can fetch a channel along with the current and next 3 programmes' do
      channel = Channel.create(name: 'Channel 1')
  
      now = Time.now
      ten_minutes = 10.minutes.to_i
      current = Programme.create(channel: channel, title: 'Current programme on channel 1', subtitle: 'Current programme subtitle', start_time: now.advance(minutes: -3), duration: ten_minutes)
      programme_2 = Programme.create(channel: channel, title: 'Next programme', subtitle: 'Next programme subtitle', start_time: now.advance(minutes: 7), duration: ten_minutes)
      programme_3 = Programme.create(channel: channel, title: 'Programme 3', start_time: now.advance(minutes: 17), duration: ten_minutes)
      programme_4 = Programme.create(channel: channel, title: 'Programme 4', start_time: now.advance(minutes: 27), duration: ten_minutes)
  
      channel_and_programmes = Channel.with_current_programmes(channel.id)
  
      channel_and_programmes[:channel].should == channel
      channel_and_programmes[:current_programme].should == current
      channel_and_programmes[:upcoming_programmes].should == [programme_2, programme_3, programme_4]
    end
    
    it 'does not fetch programmes for hidden channels' do
      channel = Channel.create(name: 'Channel 1')
      channel.hidden = true
      channel.save!
  
      now = Time.now
      ten_minutes = 10.minutes.to_i
      current = Programme.create(channel: channel, title: 'Current programme on channel 1', subtitle: 'Current programme subtitle', start_time: now.advance(minutes: -3), duration: ten_minutes)
      programme_2 = Programme.create(channel: channel, title: 'Next programme', subtitle: 'Next programme subtitle', start_time: now.advance(minutes: 7), duration: ten_minutes)
  
      channel_and_programmes = Channel.with_current_programmes(channel.id)
  
      channel_and_programmes[:channel].should == channel
      channel_and_programmes[:current_programme].should be_nil
      channel_and_programmes[:upcoming_programmes].should == []
    end
  
    it 'can fetch all channels, along with the current and next 3 programmes' do
      channel_1 = Channel.add('Channel 1', 23000000, 1098)
      channel_2 = Channel.add('Channel 2', 23000000, 1098)
      channel_3 = Channel.add('Channel 3', 23000000, 1098)
      
      now = Time.now
      ten_minutes = 10.minutes.to_i
      current_on_channel_1 = Programme.create(channel: channel_1, title: 'Current programme on channel 1', subtitle: 'Current programme subtitle', start_time: now.advance(minutes: -3), duration: ten_minutes)
      programme_2_on_channel_1 = Programme.create(channel: channel_1, title: 'Next programme', subtitle: 'Next programme subtitle', start_time: now.advance(minutes: 7), duration: ten_minutes)
      programme_3_on_channel_1 = Programme.create(channel: channel_1, title: 'Programme 3', start_time: now.advance(minutes: 17), duration: ten_minutes)
      programme_4_on_channel_1 = Programme.create(channel: channel_1, title: 'Programme 4', start_time: now.advance(minutes: 27), duration: ten_minutes)
      programme_5_on_channel_1 = Programme.create(channel: channel_1, title: 'Programme 5', start_time: now.advance(minutes: 37), duration: ten_minutes)
  
      programme_1_on_channel_2 = Programme.create(channel: channel_2, title: 'Next programme on channel 2', start_time: now.advance(minutes: 17), duration: ten_minutes)
  
      old_programme_on_channel_3 = Programme.create(channel: channel_2, title: 'Obsolete programme', start_time: now.advance(minutes: -20), duration: ten_minutes)
  
      channels = Channel.all_with_current_programmes
      channels.length.should == 3
  
      channels[0][:channel].should == channel_1
      channels[0][:current_programme].should == current_on_channel_1
      channels[0][:upcoming_programmes].should == [programme_2_on_channel_1, programme_3_on_channel_1, programme_4_on_channel_1]
  
      channels[1][:channel].should == channel_2
      channels[1][:current_programme].should be_nil
      channels[1][:upcoming_programmes].should == [programme_1_on_channel_2]
  
      channels[2][:channel].should == channel_3
      channels[2][:current_programme].should be_nil
      channels[2][:upcoming_programmes].should == []
    end
  end
end