'use strict';

const db = require('../../models/index');

const setProcessingValue = (value) => {
    return new Promise((resolve, reject) => {
        const values = {processing: value};
        db.processing.update(values, {where:{}})
            .then(() => {
                resolve(true);
            })
            .catch((error) => reject(error));
    });
};

const setStartProcessing = () => {
    return setProcessingValue(true);
};

const setDoneProcessing = () => {
    return setProcessingValue(false);
};

const checkIfProcessing = () => {
    return new Promise((resolve, reject) => {
        db.processing.findAll()
            .then((results) => {
                if (results && results.length > 0){
                    resolve(results[0].getDataValue('processing'));
                }else{
                    db.processing.bulkCreate([{processing: false}])
                        .then(() => {
                            resolve(false);
                        })
                        .catch((error) => reject(error));
                }
            })
            .catch((error) => reject(error));
    });
};

module.exports = {
    setStartProcessing,
    setDoneProcessing,
    checkIfProcessing
};