Class: Date

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# File 'opal/stdlib/date.rb', line 101
def initialize(year = -4712, month = 1, day = 1, start = ITALY )
 @date = `new Date(year, month - 1, day)`
end

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# File 'opal/stdlib/date.rb', line 91
def parse(string)
 match = `/^(\d*)-(\d*)-(\d*)/.exec(string)`
 wrap `new Date(parseInt(match[1], 10), parseInt(match[2], 10) - 1, parseInt(match[3], 10))`
end

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# File 'opal/stdlib/date.rb', line 96
def today
 wrap `new Date()`
end

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# File 'opal/stdlib/date.rb', line 85
def wrap(native)
 instance = allocate
 `#{instance}.date = #{native}`
 instance
end

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# File 'opal/stdlib/date.rb', line 121
def +(date)
 %x{
 if (date.$$is_number) {
 var result = #{clone};
 result.date.setDate(#@date.getDate() + date);
 return result;
 }
 else {
 #{raise TypeError};
 }
 }
end

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# File 'opal/stdlib/date.rb', line 105
def -(date)
 %x{
 if (date.$$is_number) {
 var result = #{clone};
 result.date.setDate(#@date.getDate() - date);
 return result;
 }
 else if (date.date) {
 return Math.round((#@date - #{date}.date) / (1000 * 60 * 60 * 24));
 }
 else {
 #{raise TypeError};
 }
 }
end

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# File 'opal/stdlib/date.rb', line 134
def <(other)
 %x{
 var a = #@date, b = #{other}.date;
 a.setHours(0, 0, 0, 0);
 b.setHours(0, 0, 0, 0);
 return a < b;
 }
end

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# File 'opal/stdlib/date.rb', line 209
def <<(n)
 %x{
 if (!n.$$is_number) {
 #{raise TypeError};
 }
 return #{self >> `-n`};
 }
end

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# File 'opal/stdlib/date.rb', line 143
def <=(other)
 %x{
 var a = #@date, b = #{other}.date;
 a.setHours(0, 0, 0, 0);
 b.setHours(0, 0, 0, 0);
 return a <= b;
 }
end

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# File 'opal/stdlib/date.rb', line 170
def <=>(other)
 %x{
 var a = #@date, b = #{other}.date;
 a.setHours(0, 0, 0, 0);
 b.setHours(0, 0, 0, 0);
 if (a < b) {
 return -1;
 }
 else if (a > b) {
 return 1;
 }
 else {
 return 0;
 }
 }
end

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# File 'opal/stdlib/date.rb', line 188
def ==(other)
 %x{
 var a = #@date, b = other.date;
 return (a.getFullYear() === b.getFullYear() && a.getMonth() === b.getMonth() && a.getDate() === b.getDate());
 }
end

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# File 'opal/stdlib/date.rb', line 152
def >(other)
 %x{
 var a = #@date, b = #{other}.date;
 a.setHours(0, 0, 0, 0);
 b.setHours(0, 0, 0, 0);
 return a > b;
 }
end

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# File 'opal/stdlib/date.rb', line 161
def >=(other)
 %x{
 var a = #@date, b = #{other}.date;
 a.setHours(0, 0, 0, 0);
 b.setHours(0, 0, 0, 0);
 return a >= b;
 }
end

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# File 'opal/stdlib/date.rb', line 195
def >>(n)
 %x{
 if (!n.$$is_number) {
 #{raise TypeError};
 }
 var result = #{clone}, date = result.date, cur = date.getDate();
 date.setDate(1);
 date.setMonth(date.getMonth() + n);
 date.setDate(Math.min(cur, days_in_month(date.getFullYear(), date.getMonth())));
 return result;
 }
end

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# File 'opal/stdlib/json.rb', line 191
def as_json
 to_s
end

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# File 'opal/stdlib/date.rb', line 221
def clone
 Date .wrap (`new Date(#@date.getTime())`)
end

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# File 'opal/stdlib/date.rb', line 225
def day
 `#@date.getDate()`
end

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# File 'opal/stdlib/date.rb', line 229
def friday?
 wday == 5
end

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# File 'opal/stdlib/date.rb', line 233
def jd
 %x{
 //Adapted from http://www.physics.sfasu.edu/astro/javascript/julianday.html
 var mm = #@date.getMonth() + 1,
 dd = #@date.getDate(),
 yy = #@date.getFullYear(),
 hr = 12, mn = 0, sc = 0,
 ggg, s, a, j1, jd;
 hr = hr + (mn / 60) + (sc/3600);
 ggg = 1;
 if (yy <= 1585) {
 ggg = 0;
 }
 jd = -1 * Math.floor(7 * (Math.floor((mm + 9) / 12) + yy) / 4);
 s = 1;
 if ((mm - 9) < 0) {
 s =- 1;
 }
 a = Math.abs(mm - 9);
 j1 = Math.floor(yy + s * Math.floor(a / 7));
 j1 = -1 * Math.floor((Math.floor(j1 / 100) + 1) * 3 / 4);
 jd = jd + Math.floor(275 * mm / 9) + dd + (ggg * j1);
 jd = jd + 1721027 + 2 * ggg + 367 * yy - 0.5;
 jd = jd + (hr / 24);
 return jd;
 }
end

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# File 'opal/stdlib/date.rb', line 269
def julian?
 `#@date < new Date(1582, 10 - 1, 15, 12)`
end

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# File 'opal/stdlib/date.rb', line 273
def monday?
 wday == 1
end

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# File 'opal/stdlib/date.rb', line 277
def month
 `#@date.getMonth() + 1`
end

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# File 'opal/stdlib/date.rb', line 281
def next
 self + 1
end

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# File 'opal/stdlib/date.rb', line 285
def next_day(n=1)
 self + n
end

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# File 'opal/stdlib/date.rb', line 289
def next_month
 %x{
 var result = #{clone}, date = result.date, cur = date.getDate();
 date.setDate(1);
 date.setMonth(date.getMonth() + 1);
 date.setDate(Math.min(cur, days_in_month(date.getFullYear(), date.getMonth())));
 return result;
 }
end

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# File 'opal/stdlib/date.rb', line 299
def prev_day(n=1)
 self - n
end

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# File 'opal/stdlib/date.rb', line 303
def prev_month
 %x{
 var result = #{clone}, date = result.date, cur = date.getDate();
 date.setDate(1);
 date.setMonth(date.getMonth() - 1);
 date.setDate(Math.min(cur, days_in_month(date.getFullYear(), date.getMonth())));
 return result;
 }
end

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# File 'opal/stdlib/date.rb', line 313
def saturday?
 wday == 6
end

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# File 'opal/stdlib/date.rb', line 317
def strftime(format = '')
 %x{
 if (format == '') {
 return #{to_s};
 }
 return #@date.$strftime(#{format});
 }
end

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# File 'opal/stdlib/date.rb', line 329
def sunday?
 wday == 0
end

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# File 'opal/stdlib/date.rb', line 333
def thursday?
 wday == 4
end

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# File 'opal/stdlib/json.rb', line 187
def to_json
 to_s.to_json
end

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# File 'opal/stdlib/date.rb', line 337
def to_s
 %x{
 var d = #@date, year = d.getFullYear(), month = d.getMonth() + 1, day = d.getDate();
 if (month < 10) { month = '0' + month; }
 if (day < 10) { day = '0' + day; }
 return year + '-' + month + '-' + day;
 }
end

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# File 'opal/stdlib/date.rb', line 346
def tuesday?
 wday == 2
end

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# File 'opal/stdlib/date.rb', line 350
def wday
 `#@date.getDay()`
end

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# File 'opal/stdlib/date.rb', line 354
def wednesday?
 wday == 3
end

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# File 'opal/stdlib/date.rb', line 358
def year
 `#@date.getFullYear()`
end