const radioTitleSplitChar = ' - ';

function webRadioCheckArtistAlbum(){

    let title;
    let artist;

    if (volumioData.curData.uri != volumioData.newData.uri){
        
        // station changed...
        volumioData.curData.uri = volumioData.newData.uri;

        volumioData.curData.artist = '';
        volumioDisplayData.playerPage.artist.value = '';
        volumioDisplayData.playerPage.artist.updated = true;
        volumioData.curData.title = '';
        volumioDisplayData.playerPage.title.value = '';
        volumioDisplayData.playerPage.title.updated = true;
        volumioData.curData.album = '';
        volumioDisplayData.playerPage.album.value = '';
        volumioDisplayData.playerPage.album.updated = true;
        return;
    }

    if (volumioData.newData.title.includes('-'))
    {
        let title_artist = extractTitleAndArtist(volumioData.newData.title);
        
        if (title_artist.length === 2)
        {
            if (title_artist[0] != 'none' && title_artist[1] != 'none'){
                
                if (volumioData.curData.title != title_artist[0].trim()){
                    volumioData.curData.title = title_artist[0].trim();
                    volumioDisplayData.playerPage.title.value = volumioData.curData.title;
                    volumioDisplayData.playerPage.title.updated = true;
                }
                
                if (volumioData.curData.artist != title_artist[1].trim()){
                    volumioData.curData.artist = title_artist[1].trim();
                    volumioDisplayData.playerPage.artist.value = volumioData.curData.artist;
                    volumioDisplayData.playerPage.artist.updated = true;
                }
            }
        }
    }
    else {

        if (volumioData.curData.title != volumioData.newData.title){
            volumioData.curData.title = volumioData.newData.title;
            volumioDisplayData.playerPage.title.value = volumioData.curData.title;
            volumioDisplayData.playerPage.title.updated = true;
        }

        if (volumioData.curData.artist != volumioData.newData.artist){
            volumioData.curData.artist = volumioData.newData.artist;
            volumioDisplayData.playerPage.artist.value = volumioData.curData.artist;
            volumioDisplayData.playerPage.artist.updated = true;
        }


    }
    
    

    if (volumioData.newData.album.includes('Radio') || volumioData.newData.artist.includes('Radio')
        || volumioData.newData.album.includes('FM') || volumioData.newData.artist.includes('FM')){
            
        
        if (volumioData.newData.album.includes('Radio') || volumioData.newData.album.includes('FM')){
            if (volumioData.curData.album != volumioData.newData.album){
                volumioData.curData.album = volumioData.newData.album;
                volumioDisplayData.playerPage.album.value = volumioData.newData.album;
                volumioDisplayData.playerPage.album.updated = true;
            }
        }else if (volumioData.newData.artist.includes('Radio') || volumioData.newData.artist.includes('FM')){
            
            if (volumioData.curData.artist != volumioData.newData.artist){
                 volumioData.curData.album = volumioData.newData.artist;
                volumioDisplayData.playerPage.album.value = volumioData.newData.artist;
                volumioDisplayData.playerPage.album.updated = true;
             }
            
        }

    }else if (volumioData.curData.artist.length != 0){
        
        if (volumioData.curData.artist != volumioData.newData.artist){
            volumioData.curData.album = volumioData.newData.artist;
            volumioDisplayData.playerPage.album.value = volumioData.newData.artist;
            volumioDisplayData.playerPage.album.updated = true;
        }

    }
        
}


function extractTitleAndArtist(title){

    let titleArtist;

    if (title.includes(radioTitleSplitChar)){
                    
        
        splitTitle = title.split(radioTitleSplitChar);

        if (splitTitle.length === 2){

            titleArtist = [splitTitle[1].trim(), splitTitle[0].trim()];
            return titleArtist;
        
        }else if (splitTitle.length === 3){
        
            titleArtist = [splitTitle[2].trim(), splitTitle[1].trim()];
            return titleArtist; 

        }else{
            return [' ', title]
        }
    }
    else {
        return ['none', 'none']
    }
}