const Sequelize = require('sequelize');

module.exports = function (sequelize, DataTypes) {
    const Location = sequelize.define('Location', {
        id: {
            type: DataTypes.UUID,
            defaultValue: DataTypes.UUIDV4,
            primaryKey: true,
        },
        country: {
            type: DataTypes.STRING(125),
            allowNull: false,
        },
        city: {
            type: DataTypes.STRING(125),
            allowNull: false,
        },
        description: {
            type: DataTypes.STRING,
        },
    }, {
        tableName: 'locations',
        freezeTableName: true,
        timestamps: true,
        indexes: [{
            unique: true,
            fields: ['country', 'city']
        }]
    });

    Location.associate = function (models) {
        Location.Events = Location.hasMany(models.Event, {as: 'events', foreignKey: 'locationId'});        

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

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


    Location.addScope('includeEvents', () => {
        return {
            include: [{
                model: sequelize.models.Event,
                as: 'events',
                required: false,
                group: ['typeId'], 
//                attributes: ['name', 'type.title',] //[sequelize.fn('COUNT', sequelize.col('events.typeId')), 'ediciones'],] // [sequelize.fn('SUM', sequelize.col('Event.assistants')), 'assistants']]                                                        
                attributes: [[sequelize.fn('COUNT', sequelize.col('typeId')), 'ediciones'],] // [sequelize.fn('SUM', sequelize.col('Event.assistants')), 'assistants']]                                                        
//                include: [{
//                    model: sequelize.models.MultimediaFile,
//                    as: "multimediaFile"
//                }]
            },
            ]
        }
    });

    Location.addScope('includeGroupEvents', () => {
        return {
            include: [{

                as: 'events',
                required: false,
                //                include: [{
                //                    model: sequelize.models.MultimediaFile,
                //                    as: "multimediaFile"
                //                }]
            },
            ]
        }
    });


    return Location;
};