/* global Venue */
'use strict';

const _ = require('lodash');
const moment = require('moment');
const { generateService, parseParamsToFindOptions } = require('../../helpers/service.helper');
const Sequelize = require('sequelize');
const models = require('../../core/models');


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,
}));

const speakerComposer = (speaker, context) => {
    delete speaker.createdAt;
    delete speaker.updatedAt;
    return {...speaker,
        multimedias: multimediaComposer(speaker.multimedias),
    }
}

const eventComposer = (event, context) => {

    if (context.scopes.includes('includeVenue')) {    
        delete event.venue.updatedAt;
        delete event.venue.createdAt;    
    };

    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 extraMethods = {
    afterFetchAll: (result, params, context) => {
      
        if (!result.count) {
            return result;
        }

        let rows = result.rows.map(row => row.toJSON());
        rows = rows.map(event => eventComposer(event, context));
        
        return {
            count: rows.length,
            rows: rows
        }
    },


    afterFetchOne: (result, params, context) => {
        return eventComposer(result.toJSON(), context);
    },


    _getEvent: (params, context) => {
        const id = params.eventId;

        return new Promise(function (resolve, reject) {
            models.Event.findOne(params,)
                .then(function (result) {
                    resolve(result);
                })
                .catch(function (error) {
                    reject(error)
                });
        });

    },

	_updateEvent: (params, context) => {
        const assistants = context.event.assistants; // <- aforo
        const tickets = context.inscriptionCount + 1; // <- nº de inscritos + 1

        return new Promise(function (resolve, reject) {
            models.Event.update(
                {
                confirmed : tickets,
                }, 
                {
                where : { id: context.EventId }
                })
                .then(function (result) {
                    resolve(result);
                })
                .catch(function (error) {
                    reject(error)
                });
        });
    },

};

module.exports = generateService(models.Event, extraMethods);