'use strict';
const cdnHelper = require('./cdn.helper');

const valuesComposer = (values) => values.map(value => ({
    id: value.id,
    name: value.name,
}));

const commentsComposer = (comments) => comments.map(comment => ({
    ...comment,
    userId: undefined,
    user: {
        ...comment.user,
        profile_picture: cdnHelper.getCDNMediaUrl(comment.user.profile_picture)

    }
}))


const multimediaComposer = (multimedias) => multimedias.map(multimedia => ({
    ...multimedia,
    ...multimedia.multimediaFile,
    type: multimedia.type,
    media_type: multimedia.multimediaFile.type,
    multimediaFile: undefined,
    createdAt: undefined,
    updatedAt: undefined,
    userId: undefined,
    url: (multimedia.multimediaFile.provider === 'cdn') ? cdnHelper.getCDNMediaUrl(multimedia.multimediaFile.url) : multimedia.multimediaFile.url,    
}));


const socialNetworksComposer = (speaker, context) => {
    return {
        rrss: {
            twitter: speaker.twitter ? speaker.twitter : null,
            facebook: speaker.facebook ? speaker.facebook : null,
            youtube: speaker.youtube ? speaker.youtube : null,
            linkedin: speaker.linkedin ? speaker.linkedin : null,
            instagram: speaker.instagram ? speaker.instagram : null,
            web: speaker.web ? speaker.web : null
        },
        twitter: undefined,
        facebook: undefined,
        youtube: undefined,
        linkedin: undefined,
        instagram: undefined,
        web: undefined
    };
};


const speakerComposer = (speaker, context) => {
    let multimedias = [];
    if (context.scopes.includes('includeMultimedias')) {
        multimedias = multimediaComposer(speaker.multimedias);
    };

    let comments = [];
    if (context.scopes.includes('includeComments')) {
        comments = commentsComposer(speaker.comments);
    };

    speaker.typename = speaker.type.name;
    delete speaker.type;

    speaker.values = valuesComposer(speaker.values);

    const rrss = socialNetworksComposer(speaker, context);

    return Object.assign({},
        speaker,
        rrss,
        { multimedias: multimedias },
        { comments: comments },
    )
};


const eventComposer = (event, context) => {

    if (context.scopes.includes('includeVenue')) {
        delete event.venue.updatedAt;
        delete event.venue.createdAt;
        event.venue.image_url = cdnHelper.getCDNCityMediaUrl(event.venue.city);        
    };

    let multimedias = []
    if (context.scopes.includes('includeMultimedias')) {
        multimedias = multimediaComposer(event.multimedias)
    };

    let speakers = []
    if (context.scopes.includes('includeSpeakers')) {
        speakers = event.details.map((detail) => ({
            order: detail.order,
            ...speakerComposer(detail.speaker),
        }))
    };

    return Object.assign({},
        event,
        { multimedias: multimedias },
        { details: undefined },
        { speakers: speakers }
    )
};

const entityComposer = (entity, context) => {

    delete entity.contact_person;
    delete entity.contact_email;

    return Object.assign({},
        entity,
    )
};


module.exports = {
    entityComposer,
    speakerComposer, 
    eventComposer
}