'use strict';
const httpStatus = require('http-status');
const moment = require('moment');
const generateControllers = require('../../core/controllers');
const { buildContext } = require('../../core/controllers');
const notificationService = require('./notification.service');
const notificationDetailService = require('./notification_detail.service');
const userDeviceService = require('./user_device.service');
const eventInscriptionService = require('../events/events_inscriptions.service');
const { usersIdsComposer } = require('../../helpers/composes.helper');
const pushHelper = require('../../helpers/push.helper');
const notificationHelper = require('../../helpers/notification.helpers');

const { extractParamsFromRequest, handleErrorResponse, handleResultResponse } = require('../../helpers/controller.helper');

// Module Name
const MODULE_NAME = '[notification.controller]';
const controllerOptions = { MODULE_NAME };

const extraControllers = {

    sendNotification: (config) => {

    /**
             * notificationSample = {
             *  "tittle": "título de la notificación",
             *  "message": "cuerpo de la notificación",
             *  "recipients": {
             *      "eventId": "xxx-xxx-xxx-xxx",
             *      "segment": "ALL" | "ALL_VALIDATED" | "ALL_NOT_VALIDATED" |
             *                 "PARTNERS_ALL" | "PARTNERS_VALIDATED" | "PARTNERS_NOT_VALIDATED" |
             *                 "COLLEGE_ALL" | "COLLEGE_VALIDATED" | "COLLEGE_NOT_VALIDATED"
             *  },
             * "data": {
             *      "type": "message",
             *      "title": "Título del mensaje",
             *      "message": "Cuerpo del mensaje",
             *      "button": {
             *          "caption": "Etiqueta del boton",
        *               "url": "https://www.site.es",
        *               "screen": "<RouterName>",
        *               "paramId": "23",
             *      }
             * }
             *}
             */

        return async (req, res, next) => {
            config = config || {
                scopes: [],
            };

            let receipt = undefined;
            const context = buildContext(req, config);
            let params = extractParamsFromRequest(req, res);

            let userIds = undefined;
            let eventId = undefined;
            let segment = undefined;
            const { body } = req;

            if (!body.title) {
                return handleErrorResponse(controllerOptions.MODULE_NAME, 'sendNotification', new Error('Missing message title'), res)
            }

            if (!body.message) {
                return handleErrorResponse(controllerOptions.MODULE_NAME, 'sendNotification', new Error('Missing message content'), res)
            }

            // Evento?
            if (body.recipients.eventId) { 
                eventId = body.recipients.eventId;
                segment = body.recipients.segment;                
            } else if (body.recipients.userIds) {
                userIds = body.recipients.userIds;
            } else {
                return handleErrorResponse(controllerOptions.MODULE_NAME, 'sendNotification', new Error('Missing user Ids or event Ids'), res)
            }


            try {                
                let notification = notificationHelper.createNotification ({
                    ...body, 
                    userId: context.user.id
                });
                console.log('--------------------');
                console.log(notification);

                let getUserIds = async () => {
                    if (userIds) {
                       return new Promise(function(resolve) { resolve(userIds) } );
                    } else if (eventId && segment) {
                        switch (segment) {
                            //Todos los inscritos tanto invitados como libres
                            case 'ALL_VALIDATED':
                                userIds = await eventInscriptionService._getInscriptionByEventAndValidated(eventId, true);
                                break;
                            //Todos los de lista de espera tanto invitados como libres (Actualmente en invitados no hay lista de espera)
                            case 'ALL_NOT_VALIDATED':
                                userIds = await eventInscriptionService._getInscriptionByEventAndValidated(eventId, false);
                                break;

                            //Solo invitados como actualmente no se usa codigo de reserva para los coles, vale con filtrar por aquellos que tengan codigo de reserva
                            case 'PARTNERS_ALL':
                                userIds = await eventInscriptionService._getInscriptionByEventFromPartner(eventId);
                                break;

                            //Todos los inscritos al evento, tanto validados como en lista de espera 
                            default: //ALL
                                userIds = await eventInscriptionService._getInscriptionByEvent(eventId);
                                break;
                        }
                        
                        return new Promise(function (resolve) { resolve(usersIdsComposer(userIds)); });

                    } else {
                        return handleErrorResponse(controllerOptions.MODULE_NAME, 'sendNotification', new Error('Missing event and segment'), res)
                    }
                }    
                
                receipt = notificationService.sendNotification(notification, await getUserIds());

            } catch (error) {
                console.error(error);
                return handleErrorResponse(controllerOptions.MODULE_NAME, 'sendNotification', error, res)
            } finally {
                return handleResultResponse(receipt, null, null, res, httpStatus.OK);
            }
        }
    },

    updateNotificationsWithReceipts: (config) => {
        return async (req, res, next) => {
            config = config || {
                scopes: [],
            };

            const context = buildContext(req, config);
            let params = extractParamsFromRequest(req, res);

            let getNotificationsWithoutReceipt = async () => {
                let params = {
                    where: { }
                };               
                return await notificationDetailService.fetchAll(params, context);
            }

            let receipt = await Promise.all(getUserDevicesList).then(
                function (userDeviceList) {
                    return Promise.all(userDeviceList.map(buildMessagePromise))
                })
                .then(sendNotificationsPromise)
        }
    },

    registerDevice: (config) => {
        return async (req, res, next) => {
            config = config || {
                scopes: [],
            };

            try {
                const context = buildContext(req, config);
                var data = {
                    token: req.body.token,
                    valid: 1,
                    userId: context.user.id
                };

                let params = extractParamsFromRequest(req, res, { 
                    includeAll: false, 
                    paginate: { limit: 1, page: 1 },
                    params: {
                        userId: context.user.id,
                        token: data.token,
                    }
                });

                // Buscamos el token y el usuario
                console.log('>> Busco el usuario y el token', params.params);
                let result = await userDeviceService.fetchOne(params, context);
                if (!result) {
                    // Dar de alta el token
                    console.log('>> Dar de alta el token', data);
                    result = await userDeviceService.create(data, context);
                } else {
                    // Actualizar el token
                    console.log('>> Actualizar el token', params.params, data, context);
                    result = await userDeviceService.update(params, { valid : 1 }, context);
                }
            } catch(error) {
                console.error(error);
            } finally {
                // En todo caso devolver OK al cliente
                return handleResultResponse('OK', null, null, res, httpStatus.OK);    
            }
        }
    },    
};

module.exports = generateControllers(notificationService, extraControllers, controllerOptions);