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formatting
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@Oboshor
Oboshor authored Dec 18, 2024
1 parent 0cf92e3 commit b5db6f5
Showing 1 changed file with 183 additions and 147 deletions.
330 changes: 183 additions & 147 deletions BdDateTime.js
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Original file line number Diff line number Diff line change
@@ -1,168 +1,204 @@
/****** date showing function ****/
Date.prototype.toBdTime = function() {
var localTime = this.getTime();
var localOffset = this.getTimezoneOffset() * 60000;
var utc = localTime + localOffset;
this.setTime(utc + 3600000 * 6);
Date.prototype.toBdTime = function () {
var localTime = this.getTime();
var localOffset = this.getTimezoneOffset() * 60000;
var utc = localTime + localOffset;
this.setTime(utc + 3600000 * 6);

return this;
return this;
};

function bdDateConverter(inputDate)
{
var d = Object.prototype.toString.call(inputDate) === '[object Date]' ? inputDate : new Date().toBdTime();
this.inputDate = d;

// Modifications as per new convention from 19.OCT.2023

var leapYearMonthIndex = 10, leapYearMonthDays = 30;
//* Ensure that dates before the convention match with paper-published days
if( d < new Date() && d > new Date(1970,0,1) ) // Additional code to respect convention before 1430 bengali year
{
leapYearMonthDays = 31;
this.formatConvertList.multiplierBD[5] = 30;
this.formatConvertList.multiplierBD[11] = 30;
}

var y = this.inputDate.getFullYear();
this.leapYear = ((y % 4 === 0) && (y % 100 !== 0)) || (y % 400 === 0);
if(this.leapYear)
{
this.formatConvertList.multiplierBD[leapYearMonthIndex] = leapYearMonthDays;
this.formatConvertList.multiplierEN[1] = 29;
}

function daysIntoYear(date){
return (Date.UTC(date.getFullYear(), date.getMonth(), date.getDate()) - Date.UTC(date.getFullYear(), 0, 0)) / 24 / 60 / 60 / 1000;
}
this.totalDaysInEN = 0;
this.totalDaysInEN = daysIntoYear(this.inputDate);
this.firstDayInBD = this.formatConvertList.multiplierEN[0]+this.formatConvertList.multiplierEN[1]+this.formatConvertList.multiplierEN[2]+14;

this.prepareDateInstanceFormats();
function bdDateConverter(inputDate) {
var d =
Object.prototype.toString.call(inputDate) === "[object Date]"
? inputDate
: new Date().toBdTime();
this.inputDate = d;

// Modifications as per new convention from 19.OCT.2023

var leapYearMonthIndex = 10,
leapYearMonthDays = 30;
//* Ensure that dates before the convention match with paper-published days
if (d < new Date() && d > new Date(1970, 0, 1)) {
// Additional code to respect convention before 1430 bengali year
leapYearMonthDays = 31;
this.formatConvertList.multiplierBD[5] = 30;
this.formatConvertList.multiplierBD[11] = 30;
}

var y = this.inputDate.getFullYear();
this.leapYear = (y % 4 === 0 && y % 100 !== 0) || y % 400 === 0;
if (this.leapYear) {
this.formatConvertList.multiplierBD[leapYearMonthIndex] = leapYearMonthDays;
this.formatConvertList.multiplierEN[1] = 29;
}

function daysIntoYear(date) {
return (
(Date.UTC(date.getFullYear(), date.getMonth(), date.getDate()) -
Date.UTC(date.getFullYear(), 0, 0)) /
24 /
60 /
60 /
1000
);
}
this.totalDaysInEN = 0;
this.totalDaysInEN = daysIntoYear(this.inputDate);
this.firstDayInBD =
this.formatConvertList.multiplierEN[0] +
this.formatConvertList.multiplierEN[1] +
this.formatConvertList.multiplierEN[2] +
14;

this.prepareDateInstanceFormats();
}

bdDateConverter.prototype.prepareDateInstanceFormats = function(){
this.dateInstance = {
l: this.inputDate.getDay(),
G: this.inputDate.getHours(),
H: this.inputDate.getHours() > 9 ? this.inputDate.getHours() : '0'+this.inputDate.getHours(),
g: this.inputDate.getHours() > 12 ? this.inputDate.getHours()-12 : this.inputDate.getHours(),
i: this.inputDate.getMinutes(),
M: this.inputDate.getMinutes() > 9 ? this.inputDate.getMinutes() : '0'+this.inputDate.getMinutes(),
S: this.inputDate.getSeconds() > 9 ? this.inputDate.getSeconds() : '0'+this.inputDate.getSeconds(),
s: this.inputDate.getSeconds()
};
this.dateInstance.A = this.A();
this.dateInstance.Y = this.Y(this.inputDate.getFullYear());

if( this.totalDaysInEN < this.firstDayInBD)
{
this.totalDaysInEN = 365+(+this.leapYear)-( this.firstDayInBD-this.totalDaysInEN);
}
else
{
this.totalDaysInEN-= this.firstDayInBD;
}
var Fj = this.Fj();
this.dateInstance.F = Fj.m-1;
this.dateInstance.j = Fj.d;

this.dateInstance.h = this.dateInstance.g;
this.dateInstance.m = Fj.m;
this.dateInstance.d = Fj.d;
bdDateConverter.prototype.prepareDateInstanceFormats = function () {
this.dateInstance = {
l: this.inputDate.getDay(),
G: this.inputDate.getHours(),
H:
this.inputDate.getHours() > 9
? this.inputDate.getHours()
: "0" + this.inputDate.getHours(),
g:
this.inputDate.getHours() > 12
? this.inputDate.getHours() - 12
: this.inputDate.getHours(),
i: this.inputDate.getMinutes(),
M:
this.inputDate.getMinutes() > 9
? this.inputDate.getMinutes()
: "0" + this.inputDate.getMinutes(),
S:
this.inputDate.getSeconds() > 9
? this.inputDate.getSeconds()
: "0" + this.inputDate.getSeconds(),
s: this.inputDate.getSeconds(),
};
this.dateInstance.A = this.A();
this.dateInstance.Y = this.Y(this.inputDate.getFullYear());

if (this.totalDaysInEN < this.firstDayInBD) {
this.totalDaysInEN =
365 + +this.leapYear - (this.firstDayInBD - this.totalDaysInEN);
} else {
this.totalDaysInEN -= this.firstDayInBD;
}
var Fj = this.Fj();
this.dateInstance.F = Fj.m - 1;
this.dateInstance.j = Fj.d;

this.dateInstance.h = this.dateInstance.g;
this.dateInstance.m = Fj.m;
this.dateInstance.d = Fj.d;
};

bdDateConverter.prototype.Fj = function(){
var m=0;
for(var i=0; i<this.formatConvertList.multiplierBD.length && this.totalDaysInEN >= 0; ++i)
{
m+=1;
if(this.formatConvertList.multiplierBD[i] - this.totalDaysInEN > 0)
break;
this.totalDaysInEN -= this.formatConvertList.multiplierBD[i];
}
return {
"m": m > 9 ? m : '0'+m ,
"d": this.totalDaysInEN +1
};
bdDateConverter.prototype.Fj = function () {
var m = 0;
for (
var i = 0;
i < this.formatConvertList.multiplierBD.length && this.totalDaysInEN >= 0;
++i
) {
m += 1;
if (this.formatConvertList.multiplierBD[i] - this.totalDaysInEN > 0) break;
this.totalDaysInEN -= this.formatConvertList.multiplierBD[i];
}
return {
m: m > 9 ? m : "0" + m,
d: this.totalDaysInEN + 1,
};
};

bdDateConverter.prototype.Y = function(y){
if( y-2016 > 0){
y =1423 + Math.floor((y-2016)/4)*4 + (y-2016) % 4;
}
else {
y =1423 - Math.floor((2016-y)/4)*4 - (2016-y) % 4;
}
if( this.firstDayInBD > this.totalDaysInEN)
y = y-1;

return y;
bdDateConverter.prototype.Y = function (y) {
if (y - 2016 > 0) {
y = 1423 + Math.floor((y - 2016) / 4) * 4 + ((y - 2016) % 4);
} else {
y = 1423 - Math.floor((2016 - y) / 4) * 4 - ((2016 - y) % 4);
}
if (this.firstDayInBD > this.totalDaysInEN) y = y - 1;

return y;
};

bdDateConverter.prototype.A = function(){
if( this.dateInstance.G >= 4 && this.dateInstance.G < 6)
return 0;
else if (this.dateInstance.G >= 6 && this.dateInstance.G < 12)
return 1;
else if( this.dateInstance.G >= 12 && this.dateInstance.G < 16)
return 2;
else if( this.dateInstance.G >= 16 && this.dateInstance.G < 18)
return 3;
else if( this.dateInstance.G >= 18 && this.dateInstance.G < 20)
return 4;
else if( this.dateInstance.G >= 20 && this.dateInstance.G <=23)
return 5;
else if( this.dateInstance.G >= 0 && this.dateInstance.G <4)
return 5;

return 6;
bdDateConverter.prototype.A = function () {
if (this.dateInstance.G >= 4 && this.dateInstance.G < 6) return 0;
else if (this.dateInstance.G >= 6 && this.dateInstance.G < 12) return 1;
else if (this.dateInstance.G >= 12 && this.dateInstance.G < 16) return 2;
else if (this.dateInstance.G >= 16 && this.dateInstance.G < 18) return 3;
else if (this.dateInstance.G >= 18 && this.dateInstance.G < 20) return 4;
else if (this.dateInstance.G >= 20 && this.dateInstance.G <= 23) return 5;
else if (this.dateInstance.G >= 0 && this.dateInstance.G < 4) return 5;

return 6;
};

bdDateConverter.prototype.convert = function(formatString){
this.formatString = formatString;
var bDate = "";
for (var i = 0; i < formatString.length; ++i)
{
var singleFormatChar = formatString.charAt(i);
if( singleFormatChar in this.dateInstance === false)
{
bDate += singleFormatChar;
continue;
}
switch (singleFormatChar) {
case 'A':
case 'F':
case 'l':
bDate += this.formatConvertList[singleFormatChar][this.dateInstance[singleFormatChar]];
break;
default:
var intToStr = this.dateInstance[singleFormatChar].toString();
for( var j=0; j<intToStr.length; ++j)
{
bDate += this.formatConvertList._N[intToStr[j]];
}
break;
}
}
return bDate;
bdDateConverter.prototype.convert = function (formatString) {
this.formatString = formatString;

var bDate = "";
for (var i = 0; i < formatString.length; ++i) {
var singleFormatChar = formatString.charAt(i);
if (singleFormatChar in this.dateInstance === false) {
bDate += singleFormatChar;
continue;
}
switch (singleFormatChar) {
case "A":
case "F":
case "l":
bDate +=
this.formatConvertList[singleFormatChar][
this.dateInstance[singleFormatChar]
];
break;
default:
var intToStr = this.dateInstance[singleFormatChar].toString();
for (var j = 0; j < intToStr.length; ++j) {
bDate += this.formatConvertList._N[intToStr[j]];
}
break;
}
}

return bDate;
};

bdDateConverter.prototype.formatConvertList =
{
"multiplierEN" : [31,28,31,30,31,30,31,31,30,31,30,31],
"multiplierBD" : [31,31,31,31,31,31,30,30,30,30,29,30],

"A" : ["ভোর","সকাল", "দুপুর", "বিকাল", "সন্ধ্যা", "রাত"],
"F" : ["বৈশাখ", "জ্যৈষ্ঠ", "আষাঢ়", "শ্রাবণ", "ভাদ্র", "আশ্বিন", "কার্তিক", "অগ্রহায়ণ", "পৌষ", "মাঘ", "ফাল্গুন", "চৈত্র"],
"l" : ["রবিবার", "সোমবার", "মঙ্গলবার", "বুধবার", "বৃহস্পতিবার", "শুক্রবার", "শনিবার"],
"_N" : ["০", "১", "২", "৩", "৪", "৫", "৬", "৭", "৮", "৯"]
bdDateConverter.prototype.formatConvertList = {
multiplierEN: [31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31],
multiplierBD: [31, 31, 31, 31, 31, 31, 30, 30, 30, 30, 29, 30],

A: ["ভোর", "সকাল", "দুপুর", "বিকাল", "সন্ধ্যা", "রাত"],
F: [
"বৈশাখ",
"জ্যৈষ্ঠ",
"আষাঢ়",
"শ্রাবণ",
"ভাদ্র",
"আশ্বিন",
"কার্তিক",
"অগ্রহায়ণ",
"পৌষ",
"মাঘ",
"ফাল্গুন",
"চৈত্র",
],
l: [
"রবিবার",
"সোমবার",
"মঙ্গলবার",
"বুধবার",
"বৃহস্পতিবার",
"শুক্রবার",
"শনিবার",
],
_N: ["০", "১", "২", "৩", "৪", "৫", "৬", "৭", "৮", "৯"],
};

// mimic jQuery to export modules
if ("object" === typeof module && "object" === typeof module.exports) {
module.exports = bdDateConverter;
module.exports = bdDateConverter;
}

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