Helpers.js

export const generateURL = (baseURL, params) => {
  const query = Object.keys(params)
    .map((k) => encodeURIComponent(k) + "=" + encodeURIComponent(params[k]))
    .join("&");
  baseURL += query;
  return baseURL;
};

export const generateMapsURL = (lat, long) => {
  var tempURL = "https://www.google.com/maps/@";
  tempURL += lat + ",";
  tempURL += long + ",15z";
  return tempURL;
};

export const moveFromToArr = (curr, x, setX, y, setY) => {
  var dup = [...x];
  for (var i = 0; i < dup.length; i++) {
    if (curr._id === dup[i]._id) {
      dup.splice(i, 1);
    }
  }
  setX(dup);

  var dup1 = [...y];
  const currDupped = JSON.parse(JSON.stringify(curr));
  dup1.push(currDupped);
  setY(dup1);
};

export const validateEmail = (email) => {
  var re = /^(([^<>()\[\]\\.,;:\s@"]+(\.[^<>()\[\]\\.,;:\s@"]+)*)|(".+"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$/;
  return re.test(String(email).toLowerCase());
};

var rad = function (x) {
  return (x * Math.PI) / 180;
};

export const calcDistance = (latA, longA, latB, longB) => {
  var R = 6378137; // Earth’s mean radius in meter
  var dLat = rad(latB - latA);
  var dLong = rad(longB - longA);
  var a =
    Math.sin(dLat / 2) * Math.sin(dLat / 2) +
    Math.cos(rad(latA)) *
      Math.cos(rad(latB)) *
      Math.sin(dLong / 2) *
      Math.sin(dLong / 2);
  var c = 2 * Math.atan2(Math.sqrt(a), Math.sqrt(1 - a));
  var d = R * c;
  return d; // returns the distance in meter
};

export const convertTime = (date) => {
  const newDate = new Date(date);
  const midnight = new Date();
  midnight.setHours(0, 0, 0);
  const nightBefore = new Date(new Date().getTime() - 24 * 60 * 60 * 1000);
  nightBefore.setHours(0, 0, 0);
  if (newDate > midnight) {
    return formatDate(newDate, "h:mm TT", false);
  } else if (newDate < midnight && newDate > nightBefore) {
    return "Yesterday";
  } else {
    return formatDate(newDate, "M/d/yy", false);
  }
};

export const translatePayment = (num) => {
  if (num == 0) {
    return "Call Ahead";
  } else if (num == 1) {
    return "Reimburse Volunteer";
  } else {
    return "N/A";
  }
};

export const formatDate = (date, format, utc) => {
  var MMMM = [
    "\x00",
    "January",
    "February",
    "March",
    "April",
    "May",
    "June",
    "July",
    "August",
    "September",
    "October",
    "November",
    "December",
  ];
  var MMM = [
    "\x01",
    "Jan",
    "Feb",
    "Mar",
    "Apr",
    "May",
    "Jun",
    "Jul",
    "Aug",
    "Sep",
    "Oct",
    "Nov",
    "Dec",
  ];
  var dddd = [
    "\x02",
    "Sunday",
    "Monday",
    "Tuesday",
    "Wednesday",
    "Thursday",
    "Friday",
    "Saturday",
  ];
  var ddd = ["\x03", "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"];
  function ii(i, len) {
    var s = i + "";
    len = len || 2;
    while (s.length < len) s = "0" + s;
    return s;
  }

  var y = utc ? date.getUTCFullYear() : date.getFullYear();
  format = format.replace(/(^|[^\\])yyyy+/g, "$1" + y);
  format = format.replace(/(^|[^\\])yy/g, "$1" + y.toString().substr(2, 2));
  format = format.replace(/(^|[^\\])y/g, "$1" + y);

  var M = (utc ? date.getUTCMonth() : date.getMonth()) + 1;
  format = format.replace(/(^|[^\\])MMMM+/g, "$1" + MMMM[0]);
  format = format.replace(/(^|[^\\])MMM/g, "$1" + MMM[0]);
  format = format.replace(/(^|[^\\])MM/g, "$1" + ii(M));
  format = format.replace(/(^|[^\\])M/g, "$1" + M);

  var d = utc ? date.getUTCDate() : date.getDate();
  format = format.replace(/(^|[^\\])dddd+/g, "$1" + dddd[0]);
  format = format.replace(/(^|[^\\])ddd/g, "$1" + ddd[0]);
  format = format.replace(/(^|[^\\])dd/g, "$1" + ii(d));
  format = format.replace(/(^|[^\\])d/g, "$1" + d);

  var H = utc ? date.getUTCHours() : date.getHours();
  format = format.replace(/(^|[^\\])HH+/g, "$1" + ii(H));
  format = format.replace(/(^|[^\\])H/g, "$1" + H);

  var h = H > 12 ? H - 12 : H === 0 ? 12 : H;
  format = format.replace(/(^|[^\\])hh+/g, "$1" + ii(h));
  format = format.replace(/(^|[^\\])h/g, "$1" + h);

  var m = utc ? date.getUTCMinutes() : date.getMinutes();
  format = format.replace(/(^|[^\\])mm+/g, "$1" + ii(m));
  format = format.replace(/(^|[^\\])m/g, "$1" + m);

  var s = utc ? date.getUTCSeconds() : date.getSeconds();
  format = format.replace(/(^|[^\\])ss+/g, "$1" + ii(s));
  format = format.replace(/(^|[^\\])s/g, "$1" + s);

  var f = utc ? date.getUTCMilliseconds() : date.getMilliseconds();
  format = format.replace(/(^|[^\\])fff+/g, "$1" + ii(f, 3));
  f = Math.round(f / 10);
  format = format.replace(/(^|[^\\])ff/g, "$1" + ii(f));
  f = Math.round(f / 10);
  format = format.replace(/(^|[^\\])f/g, "$1" + f);

  var T = H < 12 ? "AM" : "PM";
  format = format.replace(/(^|[^\\])TT+/g, "$1" + T);
  format = format.replace(/(^|[^\\])T/g, "$1" + T.charAt(0));

  var t = T.toLowerCase();
  format = format.replace(/(^|[^\\])tt+/g, "$1" + t);
  format = format.replace(/(^|[^\\])t/g, "$1" + t.charAt(0));

  var tz = -date.getTimezoneOffset();
  var K = utc || !tz ? "Z" : tz > 0 ? "+" : "-";
  if (!utc) {
    tz = Math.abs(tz);
    var tzHrs = Math.floor(tz / 60);
    var tzMin = tz % 60;
    K += ii(tzHrs) + ":" + ii(tzMin);
  }
  format = format.replace(/(^|[^\\])K/g, "$1" + K);

  var day = (utc ? date.getUTCDay() : date.getDay()) + 1;
  format = format.replace(new RegExp(dddd[0], "g"), dddd[day]);
  format = format.replace(new RegExp(ddd[0], "g"), ddd[day]);

  format = format.replace(new RegExp(MMMM[0], "g"), MMMM[M]);
  format = format.replace(new RegExp(MMM[0], "g"), MMM[M]);

  format = format.replace(/\\(.)/g, "$1");

  return format;
};

export const extractTrueObj = (obj) => {
  var result = [];
  for (const p in obj) {
    if (obj[p]) {
      result.push(p);
    }
  }
  return result;
};

export const setFalseObj = (names) => {
  var res = {};
  for (var i = 0; i < names.length; i++) {
    res[names[i]] = false;
  }
  return res;
};

export const setTrueObj = (names) => {
  var res = {};
  for (var i = 0; i < names.length; i++) {
    res[names[i]] = true;
  }
  return res;
};