package {

    import com.brightcove.api.APIModules;
    import com.brightcove.api.CustomModule;
    import com.brightcove.api.components.ComboBox;
    import com.brightcove.api.dtos.VideoDTO;
    import com.brightcove.api.events.CaptionsEvent;
    import com.brightcove.api.events.MediaEvent;
    import com.brightcove.api.events.PropertyChangeEvent;
	import com.brightcove.api.events.ExperienceEvent;
    import com.brightcove.api.modules.CaptionsModule;
    import com.brightcove.api.modules.ExperienceModule;
    import com.brightcove.api.modules.VideoPlayerModule;
	import com.brightcove.api.modules.SocialModule;
    
    import flash.system.Capabilities;
    
    /**
    * This plugin loads in a dfxp file for each video based on a custom field value, dfxpPath.
    * If a combo box exists in the player with the id "closedCaptionsCombo" it will be made
    * visible and populated with the languages from the file.
    */
    public class CaptionPlugin extends CustomModule {
        
        private static const CC_OFF:String = "CC off";

        private var mVideoPlayer:VideoPlayerModule;
        private var mExperienceModule:ExperienceModule;
        private var mCaptionsModule:CaptionsModule;
        private var mLanguageSelector:ComboBox;
        private var mLanguage:String;
        private var mIgnoreSelection:Boolean;
		private var mSocialModule:SocialModule;
        
        /**
        * Initialization method called by super class when player is ready for interaction.
        */
        override protected function initialize():void {
            mVideoPlayer = player.getModule(APIModules.VIDEO_PLAYER) as VideoPlayerModule;
            // only run if there is a video player
            if (mVideoPlayer) {
				
                // default to the browser language
				mSocialModule = player.getModule(APIModules.SOCIAL) as SocialModule;
				mSocialModule.setEmbedCode("this is my new embed code");
                mExperienceModule = player.getModule(APIModules.EXPERIENCE) as ExperienceModule;
				mExperienceModule.addEventListener(ExperienceEvent.TEMPLATE_READY, onTemplateReady);
				debug(ExperienceEvent.TEMPLATE_READY);
                // if we find the combo with the expected id, set up listener for change
                mLanguageSelector = mExperienceModule.getElementByID("closedCaptionsCombo") as ComboBox;
                if (mLanguageSelector) {
                    mLanguageSelector.addEventListener(PropertyChangeEvent.CHANGE, onComboChange);
                }
                mCaptionsModule = player.getModule(APIModules.CAPTIONS) as CaptionsModule;
                mCaptionsModule.addEventListener(CaptionsEvent.DFXP_LOAD_SUCCESS, onCaptionsLoad);
                mCaptionsModule.addEventListener(CaptionsEvent.DFXP_LOAD_ERROR, onCaptionsLoadError);
                // set up for when the video changes to load in new dfxp file
                mVideoPlayer.addEventListener(MediaEvent.CHANGE, onMediaChange);
                // if video has already loaded, check for dfxp
                if (mVideoPlayer.getCurrentVideo()) {
                    onMediaChange(null);
                }
            }
			debug("METAL METAL METAL METAL METAL");
			//debug(mSocialModule.getEmbedCode());
        }
        
		
        /**
        * Handler for when the video changes in the player.
        * This loads in new dfxp for video if path can be found in custom field.
        */
        private function onMediaChange(pEvent:MediaEvent):void {
            // remove current language
            mCaptionsModule.setLanguage(null);
            // remove languages from combo
            if (mLanguageSelector) {
                mIgnoreSelection = true;
                mLanguageSelector.setData([mExperienceModule.getTranslation(CC_OFF)]);
                mIgnoreSelection = false;
            }
            // load dfxp if path can be found
            var video:VideoDTO = mVideoPlayer.getCurrentVideo();
			var dfxpurl:String = mExperienceModule.getPlayerParameter("dfxpurl") as String;
            if (video && dfxpurl) {
                mCaptionsModule.loadDFXP(dfxpurl);
            } else if (mLanguageSelector) {
                // hide selector when there is no file to load
                mLanguageSelector.setIncludeInLayout(false);
            }

        }
        
        /**
        * Handler for when the language selection changes.
        */
        private function onComboChange(pEvent:PropertyChangeEvent):void {
            if (mIgnoreSelection) { return; }
            mLanguage = mLanguageSelector.getSelectedData().label;
            // in this case, send null value for language to shut it off
            if (mLanguage == mExperienceModule.getTranslation(CC_OFF)) {
                mCaptionsModule.setLanguage(null);
            } else {
                mCaptionsModule.setLanguage(mLanguage);
            }
			var str:String = "NEW EMBED CODE: [lang: "+ mLanguage + "]";
			str+= "[dfxpurl : "+(mExperienceModule.getPlayerParameter("dfxpurl") as String)+"]";
			str+= "[playerID : "+(mExperienceModule.getPlayerParameter("playerID") as String)+"]";
			str+= "[playerKey : "+(mExperienceModule.getPlayerParameter("playerKey") as String)+"]";
			str+= "[videoPlayer : "+(mExperienceModule.getPlayerParameter("@videoPlayer") as String)+"]";
			mSocialModule.setEmbedCode(str);
        }
        
        /**
        * Handler for when dfxp file loads for video.
        */
        private function onCaptionsLoad(pEvent:CaptionsEvent):void {
            var video:VideoDTO = mVideoPlayer.getCurrentVideo();
            // just in case player has been removed
            if (video == null) { return; }
            var languages:Array = mCaptionsModule.getLanguages(video.id);
            // populate languages if combo exists
            if (mLanguageSelector) {
                // we have captions, so make list visible
                mLanguageSelector.setIncludeInLayout(true);
                // always have off switch at top
                languages.unshift(mExperienceModule.getTranslation(CC_OFF));
                mIgnoreSelection = true;
                mLanguageSelector.setData(languages);
                mIgnoreSelection = false;
                // see if we can find the previous selection
                var languageIndex:int = languages.indexOf(mLanguage);
                if (languageIndex > -1) {
                    mLanguageSelector.setSelectedIndex(languageIndex);
                } else {
                    // turn off captions if we don't know which language
                    mLanguageSelector.setSelectedIndex(0);
                }
            // if there is no combo box, just use browser default
            } else {
                mCaptionsModule.setLanguage(Capabilities.language);
            }
        }
        
        /**
         * Handler for when dfxp file fails to load for video.
         */
        private function onCaptionsLoadError(pEvent:CaptionsEvent):void {
            if (mLanguageSelector) {
                // hide selector when there is an error
                mLanguageSelector.setIncludeInLayout(false);
            }
        }
		private function onTemplateReady(pEvent:ExperienceEvent):void {
			debug("SAMSUNG?");
			//mSocialModule.setEmbedCode("create my own embed code + ");
			
		}
		private function debug(str:String):void{
			if(mExperienceModule) {
			mExperienceModule.debug(str);
			}
		}

    }

}