const path = require('path');
const { DataTypes } = require('sequelize');

const Base = require('./Base.js');

const tableName = path.basename(__filename, '.js').toLowerCase();

class Track extends Base {

    constructor(tags, file) {
        super();
        this.tableName = tableName;
        this.title = tags?.common?.title;
        this.year = tags?.common?.year;
        this.duration = tags?.common?.duration;
        let comment = undefined;
        if (tags?.common?.comment !== undefined) {
            let comment = '';
            if (Array.isArray(tags.common.comment)) {
                for (let index = 0; index < tags.common.comment.length; index++) {
                    if (comment.length > 0) {
                        comment += '\n';
                    }
                    comment += tags.common.comment[index];
                }
            } else {
                comment = tags.common.comment;
            }            
        }
        this.comment = comment;
        this.diskno = tags?.common?.disk?.no;
        this.diskof = tags?.common?.disk?.of;
        this.trackno =  tags?.common?.track?.no;
        this.trackof =  tags?.common?.track?.of;
        this.file = file;
    }

    isValid() {
        return this.title !== undefined &&
            this.file !== undefined;
    }

    async getModel() {
        return database.connection.define(tableName, {
            title: DataTypes.TEXT,
            year: DataTypes.INTEGER,
            duration: DataTypes.FLOAT,
            comment: DataTypes.TEXT,
            diskno: DataTypes.INTEGER,
            diskof: DataTypes.INTEGER,
            trackno: DataTypes.INTEGER,
            trackof: DataTypes.INTEGER,
            file: DataTypes.TEXT
        });
    }

}

module.exports = Track;