function newDailyFiles() {

    const MODULE_NAME = "Daily Files";
    const INFO_LOG = false;
    const ERROR_LOG = true;
    const logger = newDebugLog();
    logger.fileName = MODULE_NAME;

    let thisObject = {
        getFileCursor: getFileCursor,
        setDatetime: setDatetime,
        setTimePeriod: setTimePeriod,
        getExpectedFiles: getExpectedFiles,
        getFilesLoaded: getFilesLoaded,
        initialize: initialize
    }

    let filesLoaded = 0;
    let expectedFiles = 0;

    let fileCloud;

    let marketFiles = new Map;
    let fileCursors = new Map;

    let callBackWhenFileReceived;

    return thisObject;

    function initialize(pDevTeam, pBot, pProduct, pSet, pExchange, pMarket, pDatetime, pTimePeriod, callBackFunction) {

        try {

            if (INFO_LOG === true) { logger.write("[INFO] initialize -> Entering function."); }
            if (INFO_LOG === true) { logger.write("[INFO] initialize -> key = " + pDevTeam.codeName + "-" + pBot.codeName + "-" + pProduct.codeName); }

            callBackWhenFileReceived = callBackFunction;

            let exchange = ecosystem.getExchange(pProduct, pExchange);

            if (exchange === undefined) {

                throw "Exchange not supoorted by this product of the ecosystem! - pDevTeam.codeName = " + pDevTeam.codeName + ", pBot.codeName = " + pBot.codeName + ", pProduct.codeName = " + pProduct.codeName + ", pExchange = " + pExchange;

            }

            fileCloud = newFileCloud();
            fileCloud.initialize(pBot);

            /* Now we will get the daily files */

            for (i = 0; i < dailyFilePeriods.length; i++) {

                let periodTime = dailyFilePeriods[i][0];
                let periodName = dailyFilePeriods[i][1];

                if (pSet.validPeriods.includes(periodName) === true) {

                    let fileCursor = newFileCursor();
                    fileCursor.initialize(fileCloud, pDevTeam, pBot, pSet, exchange, pMarket, periodName, periodTime, pDatetime, pTimePeriod, onFileReceived);

                    fileCursors.set(periodTime, fileCursor);

                    expectedFiles = expectedFiles + fileCursor.getExpectedFiles();

                }
            }

        } catch (err) {

            if (ERROR_LOG === true) { logger.write("[ERROR] initialize -> err = " + err); }
            callBackFunction(GLOBAL.CUSTOM_FAIL_RESPONSE);
        }
    }

    function onFileReceived(err) {

        try {

            if (INFO_LOG === true) { logger.write("[INFO] onFileReceived -> Entering function."); }

            switch (err.result) {
                case GLOBAL.DEFAULT_OK_RESPONSE.result: {

                    if (INFO_LOG === true) { logger.write("[INFO] onFileReceived -> Received OK Response."); }
                    break;
                }

                case GLOBAL.DEFAULT_FAIL_RESPONSE.result: {

                    if (INFO_LOG === true) { logger.write("[INFO] onFileReceived -> Received FAIL Response."); }
                    callBackWhenFileReceived(GLOBAL.DEFAULT_FAIL_RESPONSE);
                    return;
                }

                case GLOBAL.CUSTOM_FAIL_RESPONSE.result: {

                    if (INFO_LOG === true) { logger.write("[INFO] onFileReceived -> Received CUSTOM FAIL Response."); }
                    if (INFO_LOG === true) { logger.write("[INFO] onFileReceived -> err.message = " + err.message); }

                    callBackWhenFileReceived(err);
                    return;
                }

                default: {

                    if (INFO_LOG === true) { logger.write("[INFO] onFileReceived -> Received Unexpected Response."); }
                    callBackWhenFileReceived(err);
                    return;
                }
            }

            filesLoaded++;
            callBackWhenFileReceived(GLOBAL.DEFAULT_OK_RESPONSE, thisObject); // Note that the call back is called for every file loaded at each cursor.

        } catch (err) {

            if (ERROR_LOG === true) { logger.write("[ERROR] onFileReceived -> err = " + err); }
            callBackWhenFileReceived(GLOBAL.CUSTOM_FAIL_RESPONSE);
        }
    }

    function getFileCursor(pPeriod) {

        try {

            if (INFO_LOG === true) { logger.write("[INFO] getFileCursor -> Entering function."); }

            return fileCursors.get(pPeriod);

        } catch (err) {

            if (ERROR_LOG === true) { logger.write("[ERROR] getFileCursor -> err = " + err); }
         
        }
    }

    function setDatetime(pDatetime) {

        try {

            if (INFO_LOG === true) { logger.write("[INFO] setDatetime -> Entering function."); }

            filesLoaded = 0;
            expectedFiles = 0;

            fileCursors.forEach(setDatetimeToEach)

            function setDatetimeToEach(fileCursor, key, map) {

                fileCursor.setDatetime(pDatetime, onFileReceived);
                expectedFiles = expectedFiles + fileCursor.getExpectedFiles();

            }

            if (INFO_LOG === true) { logger.write("[INFO] setDatetime -> expectedFiles = " + expectedFiles); }

        } catch (err) {

            if (ERROR_LOG === true) { logger.write("[ERROR] setDatetime -> err = " + err); }
            
        }
    }

    function setTimePeriod(pTimePeriod, pDatetime) {

        try {

            if (INFO_LOG === true) { logger.write("[INFO] setTimePeriod -> Entering function."); }

            filesLoaded = 0;
            expectedFiles = 0;

            fileCursors.forEach(setTimePeriodToEach)

            function setTimePeriodToEach(fileCursor, key, map) {

                fileCursor.setTimePeriod(pTimePeriod, pDatetime, onFileReceived);
                expectedFiles = expectedFiles + fileCursor.getExpectedFiles();

            }

            if (INFO_LOG === true) { logger.write("[INFO] setTimePeriod -> expectedFiles = " + expectedFiles); }

        } catch (err) {

            if (ERROR_LOG === true) { logger.write("[ERROR] setTimePeriod -> err = " + err); }

        }
    }

    function getExpectedFiles() {

        if (INFO_LOG === true) { logger.write("[INFO] getExpectedFiles -> Entering function."); }

        return expectedFiles;

    }

    function getFilesLoaded() {

        if (INFO_LOG === true) { logger.write("[INFO] getFilesLoaded -> Entering function."); }

        return filesLoaded;

    }
}