module.exports = function (sequelize, DataTypes) {
    const Comment = sequelize.define('Comment', {
        id: {
            type: DataTypes.UUID,
            defaultValue: DataTypes.UUIDV4,
            primaryKey: true
        },
        entityType: {
            field: 'type',
            type: DataTypes.STRING,
            allowNull: false
        },
        entity: {
            type: DataTypes.VIRTUAL(DataTypes.UUID, ['conferenceId', 'speakerId', 'postId']),
        },
        content: {
            type: DataTypes.STRING,
            allowNull: false
        },
        user: {
            type: DataTypes.VIRTUAL(DataTypes.UUID, ['userId']),
        },
        /*conference: {
            type: DataTypes.VIRTUAL(DataTypes.UUID, ['conferenceId']),
        },*/
        post: {
            type: DataTypes.VIRTUAL(DataTypes.UUID, ['postId']),
        },
        /*speaker: {
            type: DataTypes.VIRTUAL(DataTypes.UUID, ['speakerId']),
        },*/
        
    }, {
            tableName: 'comments',
            freezeTableName: true,
            timestamps: true,

        });

    Comment.associate = function (models) {
        Comment.User = Comment.belongsTo(models.User, { foreignKey: 'userId', constraints: false });
        //Comment.Conference = Comment.belongsTo(models.Conference, { foreignKey: 'conferenceId', constraints: false });
        Comment.Post = Comment.belongsTo(models.Post, { foreignKey: 'postId', constraints: false });
        //Comment.Speaker = Comment.belongsTo(models.Speaker, { foreignKey: 'speakerId', constraints: false });
    };

    return Comment;

};