'use strict';
const moment = require('moment');
const Sequelize = require('sequelize');
moment.locale('es');

const getStateCode = (event) => {
    var currentDate = moment().utc(),
        initDate = moment.utc(event.ini_date),
        endDate = moment.utc(event.end_date),
        init_availableDate = moment.utc(event.init_available_date),
        end_availableDate = moment.utc(event.end_available_date);

    if (moment(currentDate).isBetween(initDate, endDate)) {
        return 'current_event';
    } else {
        if (moment(endDate).isBefore(currentDate)) {
            return 'closed_event';
        } else {
            if (moment(currentDate).isBefore(init_availableDate)){
                return 'future_registrations'
            } else {
                if (moment(currentDate).isBetween(init_availableDate, end_availableDate)) {
                    return (event.sold_out == 1) ? 'waitinglist_open' : 'registrations_open';
                }
                else {
                    if (moment(currentDate).isAfter(end_availableDate))
                        return 'closed_registrations'
                    else
                        return 'N/A';
                }

            }
        }
    };
};


const getStateText = (event) => {
    var currentDate = moment().utc(),
        initDate = moment.utc(event.ini_date),
        endDate = moment.utc(event.end_date),
        init_availableDate = moment.utc(event.init_available_date),
        end_availableDate = moment.utc(event.end_available_date);

    if (moment(currentDate).isBetween(initDate, endDate)) {
        return 'Congreso en curso';
    } else {
        if (moment(endDate).isBefore(currentDate)) {
            return 'Congreso finalizado';
        } else {
            if (moment(currentDate).isBefore(init_availableDate)) {
                return 'Inscripciones a partir del ' + moment(init_availableDate).format('D [de] MMMM');
            } else {
                if (moment(currentDate).isBetween(init_availableDate, end_availableDate)) {
                    return (event.sold_out == 1) ? 'Inscripciones abiertas a lista de espera' : 'Inscripciones abiertas';
                }
                else {
                    if (moment(currentDate).isAfter(end_availableDate))
                        return 'Inscripciones cerradas'
                    else
                        return 'N/A';
                }

            }
        }
    };
};


module.exports = function (sequelize, DataTypes) {

    const Event = sequelize.define('Event', {
        id: {
            type: DataTypes.UUID,
            defaultValue: DataTypes.UUIDV4,
            primaryKey: true,
        },
        name: {
            type: DataTypes.STRING,
            allowNull: false,
        },
        description: {
            type: DataTypes.STRING,
        },
        campaign_text: {
            type: DataTypes.TEXT,
            allowNull: true
        },
        init_date: {
            type: DataTypes.DATE,
            allowNull: false,
        }, 
        end_date: { 
            type: DataTypes.DATE,
        },       
        init_available_date: {
            type: DataTypes.DATE,
        },
        end_available_date: {
            type: DataTypes.DATE,
        },
        gmt: {
            type: DataTypes.INTEGER,
            defaultValue: 1,
        },
        assistants: {
            type: DataTypes.INTEGER,
        },
        confirmed: {
            type: DataTypes.INTEGER,
        },
        sold_out: {                    //Se han vendido todas y se ha abierto lista de espera si hay asignada
            type: DataTypes.BOOLEAN,
            defaultValue: false,
        },
        allow_multiple: {
            type: DataTypes.BOOLEAN,
            allowNull: false,
            defaultValue: false,            
        },
        multiple_limit: {
            type: DataTypes.INTEGER,
        },
        allow_overflow: {
            type: DataTypes.BOOLEAN,
            allowNull: false,
            defaultValue: false,
        },
        overflow_eventId: {
            type: DataTypes.UUID,
            foreignKey: true,
            require: false,
        },
        state: {
            type: DataTypes.STRING,
            allowNull: false,
            defaultValue: 'draft'
        },
        stateCode: {
            type: Sequelize.VIRTUAL(Sequelize.STRING, ['init_date', 'end_date', 'init_available_date', 'end_available_date', 'sold_out']),
            get: function () {
                return getStateCode(this);
            },
        },
        stateText: {
            type: Sequelize.VIRTUAL(Sequelize.STRING, ['init_date', 'end_date', 'init_available_date', 'end_available_date', 'sold_out']),
            get: function () {
                return getStateText(this);
            },
        },
        typeId: {
            type: DataTypes.UUID,
            foreignKey: true,
        },
        venueId: {
            type: DataTypes.UUID,
            foreignKey: true,
        },
        locationId:{
            type: DataTypes.UUID,
            foreignKey: true,
        },     
        url_streaming: {
            type: DataTypes.STRING,
        },
        url_poll: {
            type: DataTypes.STRING,
        },
        url_registration: {
            type: DataTypes.STRING,
        },
        marketing_list: {
            type: DataTypes.STRING,
        },
        userId: {
            type: DataTypes.UUID,
            foreignKey: true,
        },

    }, {
        tableName: 'events',
        freezeTableName: true,
        timestamps: true,

        defaultScope: {
            where: {
                state: 'publish',
                typeId: { [Sequelize.Op.ne]: 2 },
            },
            include: [{
                model: sequelize.models.EventType,
                as: 'type',
                attributes: ['name', 'title'],
            }, 
            {
                association: 'location', 
                attributes: ['country', 'city'],
                require:false,
            }],
        },
    });
       
    Event.associate = function (models) {

        Event.OverflowEvent = Event.belongsTo(models.Event, { 
            as: 'overflowEvent',
            foreignKey: 'overflow_eventId',
            required: false });

        Event.Type = Event.belongsTo(models.EventType, { foreignKey: 'typeId', as: "type" });
        Event.UserCreate = Event.belongsTo(models.User, { foreignKey: 'userId', as: "user" });
        Event.Venue = Event.belongsTo(models.Venue, { foreignKey: 'venueId', as: "venue", required: false});
        Event.Details = Event.hasMany(models.EventDetail, { foreignKey: 'eventId', as: "details" });
        Event.Location = Event.belongsTo(models.Location, { foreignKey: 'locationId', as: "location" });        

//OJO antes de force comentar
// OJO GENERA UN FOREIGN KEY Con eventos y habrá ID de otras entidades que no exitan en la tabla eventos, porque son post o speakers
        Event.Comments = Event.hasMany(models.Comment, {
            foreignKey: 'entityId',
            scope: {
                entityName: 'event'
            },
            as: "comments",
            required: false, 
        });

        Event.Multimedias = Event.hasMany(models.Multimedia, {
            foreignKey: 'entityId',
            as: { singular: 'multimedia', plural: 'multimedias' },
            required: false, 
        });

        Event.Reservations = Event.hasMany(models.EventReservation, { 
            foreignKey: 'eventId', as: "reservations",
            required: false, 
        });
        Event.Inscriptions = Event.hasMany(models.EventInscription, { 
            foreignKey: 'eventId', as: "inscriptions",
            required: false, 
        });
        Event.Questions = Event.hasMany(models.EventQuestion, { 
            foreignKey: 'eventId', as: "questions" ,
            required: false, 
        });        
    };
    
    Event.addScope('includeVenue', () => {
        return {
            include: [
                { model: sequelize.models.Venue, as: 'venue' }
            ]
        }
    });

    Event.addScope('includeMultimedias', () => {
        return {
            include: [{ 
                model: sequelize.models.Multimedia, 
                as: { singular: 'multimedia', plural: 'multimedias' },
                required: false,
                include : [{
                    model: sequelize.models.MultimediaFile,
                    as: "multimediaFile"
                }]
            },
            ]
        }
    });

    Event.addScope('includeInscription', (userId) => {
        return {
            include: [
                { model: sequelize.models.EventInscription, as: 'inscriptions', 
                  required: false, 
                  where: { userId: userId } }
            ]
        }
    });

    Event.addScope('includeOverflowEvent', () => {
        return {
            include: [
                { model: sequelize.models.Event, 
                  as: 'overflowEvent', 
                  required: false,
                  where: { typeId: { [Sequelize.Op.ne]: null}},
//                  attributes: ['assistants', 'confirmed'],
                }
            ]
        }
    });

    Event.addScope('includeDetails', () => {
        return {
            include: [{ 
                model: sequelize.models.EventDetail, 
                as: 'details', 
                required: false,
                include: [{ 
                    model: sequelize.models.Speaker, 
                    as: 'speaker',
                    required: false,
                    include : [{
                        model: sequelize.models.Multimedia,
                        as: { singular: 'multimedia', plural: 'multimedias' },
                        required: false,
                        include: [{
                            model: sequelize.models.MultimediaFile, 
                            as: "multimediaFile" 
                        }]
                    }]                
                }]
            }]
        }
    });

    Event.addScope('next', {
        where: {
            init_date: {
                [Sequelize.Op.gte]: moment().add(1, 'days').startOf('day').utc()
            }
        },
    });

    Event.addScope('today', {
        where: {
            init_date: {
                [Sequelize.Op.gte]: moment().startOf('day'),
                [Sequelize.Op.lt]: moment().add(1, 'days').startOf('day'),
            }
        }
    });

    Event.addScope('current', {
        where: {
            init_date: {
                [Sequelize.Op.lte]: moment().utc(),
            },
            end_date:{
                [Sequelize.Op.gt]: moment().utc(),
            },
        }
    });

    Event.addScope('past', {
        where: {
            init_date: {
                [Sequelize.Op.lt]: moment().startOf('day').utc()
            }
        }
    });

    Event.addScope('withOpenInscriptions', {
        where: {
            init_available_date: {
                [Sequelize.Op.lte]: moment().utc()
            },
            end_available_date: {
                [Sequelize.Op.gt]: moment().utc()
            }
        },
    });

    Event.addScope('CitiesOfEvents', () => {
        return {
            include: [{
                model: sequelize.models.Location, as: 'location', required: false, 
                include: [{
                    model: sequelize.models.Multimedia, as: { singular: 'multimedia', plural: 'multimedias' }, required: false, attributes: ['type'],
                    include: [{ model: sequelize.models.MultimediaFile, as: "multimediaFile", attributes: ['name', 'description', 'class', 'provider', 'url'] },] 
                    }]
                    }, 
                    { model: sequelize.models.EventType, as: 'type', attributes: ['name', 'title'] }],            
            group: ['location.country', 'location.city', 'Event.typeId',],             
            attributes: ['location.country', 'location.city', 'type.name', 'type.title', [sequelize.fn('COUNT', sequelize.col('Event.typeId')), 'ediciones'], [sequelize.fn('SUM', sequelize.col('Event.assistants')), 'assistants']]            
        }
    });

    Event.addScope('onlyOfLocation', (location) => {
        return {
            where: { locationId: { [Sequelize.Op.eq]: location } },                            
        }
    });


    return Event;
};