Map structures between Backend & Frontend services.

translateScheduleBlocks.js

INPUT_DATA_BACK = [
    {
        "weekDayName": 3,
        "scheduleBlocks": [
            {
                "startWorkingTime": 480,
                "endWorkingTime": 720,
                "tag": null,
                "description": null
            },
            {
                "startWorkingTime": 840,
                "endWorkingTime": 1080,
                "tag": null,
                "description": null
            }
        ]
    },
    {
        "weekDayName": 6,
        "scheduleBlocks": [
            {
                "startWorkingTime": 480,
                "endWorkingTime": 720,
                "tag": null,
                "description": null
            },
            {
                "startWorkingTime": 840,
                "endWorkingTime": 1080,
                "tag": null,
                "description": null
            }
        ]
    }
]

INPUT_DATA_FRONT = [
    { 
        "weekdayID": 1, 
        "weekdayName": "lunes", 
        "scheduleBlocks": [ 
          { 
            "startWorkTime": 480, 
            "endWorkTime": 720, 
            "labelStartTime": "08:00", 
            "labelEndTime": "12:00" 
          }, 
        ], 
    }
]

/*
Example of use:

> idToDay(0, "esp") -> "todos-los-días"
> idToDay(5, "esp") -> "jueves"
*/
function idToDay(id, language=""){

    // TODO: if "id" is not in "mapDay" return an empty String object

    if (id == undefined)
        return "";

    let mapDay = {
        0: { "eng": "every-day", "esp": "todos-los-días" },
        1: { "eng": "monday-friday", "esp": "lunes-viernes" },
        2: { "eng": "monday", "esp": "lunes" },
        3: { "eng": "tuesday", "esp": "martes" },
        4: { "eng": "wednesday", "esp": "miércoles" },
        5: { "eng": "thursday", "esp": "jueves" },
        6: { "eng": "friday", "esp": "viernes" },
        7: { "eng": "saturday", "esp": "sábado" },
        8: { "eng": "sunday", "esp": "domingo" }
    }

    out = mapDay[id];

    if (language == "esp")
        out = out["esp"];
    else if (language == "eng")
        out = out["eng"];

    return out
}

function translateSchedules(schedule){

    function minutesToStrTime(minutes){
        // 480 -> '08:00'
        // 720 -> '12:00'
        
        let strHour = "", strMinutes = "";
        let hours = minutes / 60;

        // Improve apply ternary operator
        strHour = parseInt(hours);
        if (hours < 10)
            strHour = "0" + parseInt(hours);
        // console.log("hours: ", hours);

        let minutesInternal = hours - parseInt(hours); // Fetch the decimal portion
        // console.log("minutes float portion: ", minutesInternal);

        strMinutes = Math.ceil(minutesInternal * 0.6 * 100);
        // console.log("minutes: ", strMinutes);
        if (strMinutes < 10)
            strMinutes = "0" + strMinutes;

        return strHour + ":" + strMinutes;
    }

    let out = {};

    // TODO: improve if-else block
    if (schedule.hasOwnProperty("labelStartTime") == true) {
        // console.log("Schedule is comming from the Frontend");
        out = { 
            "startWorkTime": schedule.startWorkTime,
            "endWorkTime": schedule.endWorkTime
        };
    }
    else {
        // console.log("Schedule is comming from the Backend");
        out = { 
            "startWorkTime": schedule.startWorkingTime,
            "endWorkTime": schedule.endWorkingTime,
            "labelStartTime": minutesToStrTime(schedule.startWorkingTime),
            "labelEndTime": minutesToStrTime(schedule.endWorkingTime)
        };
    }

    return out; // Schedule translated
}


function translate(schedule){
    /*
    Data structures examples

    {
        "weekDayName": 3,
        "scheduleBlocks": [
            {
                "startWorkingTime": 480,
                "endWorkingTime": 720,
                "tag": null,
                "description": null
            },
        ]
    }

    { 
        "weekdayID": 1, 
        "weekdayName": "lunes", 
        "scheduleBlocks": [ 
          { 
            "startWorkTime": 480, 
            "endWorkTime": 720, 
            "labelStartTime": "08:00", 
            "labelEndTime": "12:00" 
          }, 
        ], 
    }
    */

    // translate schedules
    let scheduleBlocks = schedule.scheduleBlocks.map(translateSchedules);
    let weekdayID = "";

    // si la info viene del front
    if ( schedule.hasOwnProperty( "weekdayID" ) == true )
        weekdayID = schedule.weekdayID;

    // si la info viene del front        
    else
        weekdayID = schedule.weekDayName;

    return {
        "weekdayID": weekdayID,
        "weekdayName": idToDay(id=weekdayID, language="esp"),
        "scheduleBlocks": scheduleBlocks
    }
}

console.log("Input data coming from the Backend\n")
out = INPUT_DATA_BACK.map(translate);
console.log( JSON.stringify( out ), "\n\n" );

console.log("Input data coming from the Frontend\n")
out = INPUT_DATA_FRONT.map(translate);
console.log( JSON.stringify( out ) );