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95 Weekday - move functions into classes

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This commit is contained in:
Steve Bosman
2022-02-03 23:44:23 +00:00
parent 0434ac8fd4
commit 277ab47019
1 changed files with 105 additions and 70 deletions
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175
95_Weekday/javascript/weekday.js
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@@ -36,9 +36,9 @@ function tab(space) {
}
class DateStruct {
year;
month;
day;
#year;
#month;
#day;
/**
* Build a DateStruct
@@ -47,9 +47,25 @@ class DateStruct {
* @param {number} day
*/
constructor(year, month, day) {
this.year = year;
this.month = month;
this.day = day;
this.#year = year;
this.#month = month;
this.#day = day;
}
get year() {
return this.#year;
}
get month() {
return this.#month;
}
get day() {
return this.#day;
}
clone = () => {
return new DateStruct(this.#year, this.#month, this.#day)
}
/**
@@ -58,14 +74,14 @@ class DateStruct {
* see https://en.wikipedia.org/wiki/Gregorian_calendar
* @returns {boolean} true if date could be Gregorian; otherwise false.
*/
isGregorianDate() {
isGregorianDate = function () {
let result = false;
if (this.year > 1582) {
if (this.#year > 1582) {
result = true;
} else if (this.year === 1582) {
if (this.month > 10) {
} else if (this.#year === 1582) {
if (this.#month > 10) {
result = true;
} else if (this.month === 10 && this.day >= 15) {
} else if (this.#month === 10 && this.#day >= 15) {
result = true;
}
}
@@ -76,15 +92,15 @@ class DateStruct {
* Returns a US formatted date, i.e. Month/Day/Year.
* @returns {string}
*/
getFormattedDate() {
return this.month + "/" + this.day + "/" + this.year;
toString = function () {
return this.#month + "/" + this.#day + "/" + this.#year;
}
}
class Duration {
years;
months;
days;
#years;
#months;
#days;
/**
* Build a Duration
@@ -93,9 +109,70 @@ class Duration {
* @param {number} days
*/
constructor(years, months, days) {
this.years = years;
this.months = months;
this.days = days;
this.#years = years;
this.#months = months;
this.#days = days;
}
get years() {
return this.#years;
}
get months() {
return this.#months;
}
get days() {
return this.#days;
}
clone = () => {
return new Duration(this.#years, this.#months, this.#days)
}
/**
* Adjust Duration by removing years, months and days from supplied Duration.
* This is a naive calculation which assumes all months are 30 days.
* @param {Duration} timeToRemove
*/
remove = (timeToRemove) => {
this.#years -= timeToRemove.years;
this.#months -= timeToRemove.months;
this.#days -= timeToRemove.days;
if (this.#days < 0) {
this.#days += 30;
this.#months--;
}
if (this.#months < 0) {
this.#months += 12;
this.#years--;
}
}
toString = () => {
return this.#years + "/" + this.#months + "/" + this.#days;
}
/**
* Determine approximate Duration between two dates.
* This is a naive calculation which assumes all months are 30 days.
* @param {DateStruct} date1
* @param {DateStruct} date2
* @returns {Duration}
*/
static between(date1, date2) {
let years = date1.year - date2.year;
let months = date1.month - date2.month;
let days = date1.day - date2.day;
if (days < 0) {
months--;
days += 30;
}
if (months < 0) {
years--;
months += 12;
}
return new Duration(years, months, days);
}
}
@@ -140,25 +217,6 @@ function printTimeSpent(duration) {
print(duration.years + "\t" + duration.months + "\t" + duration.days + "\n");
}
/**
* Adjust unaccounted time by remove years, months and days supplied.
* @param {Duration} unaccountedTime
* @param {Duration} timeToRemove
*/
function adjustUnaccountedTime(unaccountedTime, timeToRemove) {
unaccountedTime.years -= timeToRemove.years;
unaccountedTime.months -= timeToRemove.months;
unaccountedTime.days -= timeToRemove.days;
if (unaccountedTime.days < 0) {
unaccountedTime.days += 30;
unaccountedTime.months--;
}
if (unaccountedTime.months <= 0) {
unaccountedTime.months += 12;
unaccountedTime.years--;
}
}
/**
* Determine if the given year is a leap year.
* @param year
@@ -193,7 +251,7 @@ function getDayOfWeek(date) {
const yearInCenturyOffsets = yearInCentury / 4 + yearInCentury;
// combine offsets with day and month
let dayOfWeek = centuryOffset + yearInCenturyOffsets + date.day + COMMON_YEAR_MONTH_OFFSET[date.month-1];
let dayOfWeek = centuryOffset + yearInCenturyOffsets + date.day + COMMON_YEAR_MONTH_OFFSET[date.month - 1];
dayOfWeek = Math.floor(dayOfWeek % 7) + 1;
if (date.month <= 2 && isLeapYear(date.year)) {
@@ -254,28 +312,6 @@ function getNormalisedDay(date) {
return (date.year * 12 + date.month) * 31 + date.day;
}
/**
* Determine approximate difference between two dates.
* This is a naive calculation which assumes all months are 30 days.
* @param {DateStruct} date1
* @param {DateStruct} date2
* @returns {Duration}
*/
function difference(date1, date2) {
let years = date1.year - date2.year;
let months = date1.month - date2.month;
let days = date1.day - date2.day;
if (days < 0) {
months--;
days += 30;
}
if (months < 0) {
years--;
months += 12;
}
return new Duration(years, months, days);
}
// Main control section
async function main() {
print(tab(32) + "WEEKDAY\n");
@@ -300,19 +336,18 @@ async function main() {
const normalisedToday = getNormalisedDay(today);
const normalisedDob = getNormalisedDay(dateOfBirth);
const dateOfBirthText = dateOfBirth.getFormattedDate();
let dayOfWeekText = getDayOfWeekText(dateOfBirth);
if (normalisedToday < normalisedDob) {
print(dateOfBirthText + " WILL BE A " + dayOfWeekText + "\n");
print(dateOfBirth + " WILL BE A " + dayOfWeekText + "\n");
} else if (normalisedToday === normalisedDob) {
print(dateOfBirthText + " IS A " + dayOfWeekText + "\n");
print(dateOfBirth + " IS A " + dayOfWeekText + "\n");
} else {
print(dateOfBirthText + " WAS A " + dayOfWeekText + "\n");
print(dateOfBirth + " WAS A " + dayOfWeekText + "\n");
}
if (normalisedToday !== normalisedDob) {
print("\n");
let differenceBetweenDates = difference(today, dateOfBirth);
let differenceBetweenDates = Duration.between(today, dateOfBirth);
if (differenceBetweenDates.years >= 0) {
if (differenceBetweenDates.days === 0 && differenceBetweenDates.months === 0) {
print("***HAPPY BIRTHDAY***\n");
@@ -323,19 +358,19 @@ async function main() {
printTimeSpent(differenceBetweenDates);
const approximateDaysBetween = (differenceBetweenDates.years * 365) + (differenceBetweenDates.months * 30) + differenceBetweenDates.days + Math.floor(differenceBetweenDates.months / 2);
// Create an object containing time unaccounted for
const unaccountedTime = {...differenceBetweenDates};
const unaccountedTime = differenceBetweenDates.clone();
// Calculate time spent in the following functions.
print("YOU HAVE SLEPT \t\t\t");
const sleepTimeSpent = time_spent(0.35, approximateDaysBetween);
printTimeSpent(sleepTimeSpent);
adjustUnaccountedTime(unaccountedTime, sleepTimeSpent);
unaccountedTime.remove(sleepTimeSpent);
print("YOU HAVE EATEN \t\t\t");
const eatenTimeSpent = time_spent(0.17, approximateDaysBetween);
printTimeSpent(eatenTimeSpent);
adjustUnaccountedTime(unaccountedTime, eatenTimeSpent);
unaccountedTime.remove(eatenTimeSpent);
if (unaccountedTime.years <= 3) {
print("YOU HAVE PLAYED \t\t\t");
} else if (unaccountedTime.years <= 9) {
@@ -346,7 +381,7 @@ async function main() {
const workPlayTimeSpent = time_spent(0.23, approximateDaysBetween);
printTimeSpent(workPlayTimeSpent);
adjustUnaccountedTime(unaccountedTime, workPlayTimeSpent);
unaccountedTime.remove(workPlayTimeSpent);
if (unaccountedTime.months === 12) {
unaccountedTime.years++;
unaccountedTime.months = 0;