uim.core.datatypes.datetime source code

1 /***********************************************************************************************
2 *	Copyright: © 2017-2021 UI Manufaktur UG
3 *	License: Subject to the terms of the MIT license, as written in the included LICENSE.txt file.
4 *	Authors: UI Manufaktur Team
5 *	Documentation [DE]: https://ui-manufaktur.com/docu/uim-core/dataytypes/datetime
6 ************************************************************************************************/
7 module uim.core.datatypes.datetime;
8 
9 @safe:
10 import uim.core;
11 
12 enum startUNIX = DateTime(1970, 1, 1, 0, 0, 0);
13 
14 @safe long toTimestamp(SysTime untilTime) {
15 	return (untilTime - cast(SysTime)startUNIX).total!"hnsecs"();
16 }
17 @safe SysTime fromTimestamp(long aTimestamp) {
18 	return (cast(SysTime)startUNIX + aTimestamp.hnsecs);
19 }
20 @safe long toJSTimestamp(long jsTimestamp) {
21 	return (fromJSTimestamp(jsTimestamp) - cast(SysTime)startUNIX).total!"msecs"();
22 }
23 @safe SysTime fromJSTimestamp(long jsTimestamp) {
24 	return (cast(SysTime)startUNIX + jsTimestamp.msecs);
25 }
26 
27 // Current SysTime based on System Clock
28 @safe auto now() {
29 	return Clock.currTime(); }
30 unittest {
31 	auto now1 = now; auto now2 = now;
32 	assert(now2 >= now1);
33 }
34 
35 // Current DateTime based on System Clock
36 @safe DateTime nowDateTime() {
37 	return cast(DateTime)now; }
38 unittest {
39 	auto dt1 = nowDateTime; auto dt2 = nowDateTime;
40 	assert(dt2 >= dt1);
41 }
42 
43 /// convert time to region format using SysTime
44 @safe string timeToDateString(size_t time, string regionFormat = "DE") {
45 	auto sysTime = SysTime(time);
46 	auto day = to!string(sysTime.day);
47 	auto mon = to!string(cast(int)sysTime.month);
48 	auto year = to!string(sysTime.year);
49 	auto hour = to!string(sysTime.hour);
50 	auto min = to!string(sysTime.minute);
51 	auto sec = to!string(sysTime.second);
52 	
53 	switch(regionFormat) {
54 		case "UK":
55 			return "%s/%s/%s - %s:%s:%s".format(day, mon, year, hour, min, sec);
56 		case "US":
57 			return "%s/%s/%s - %s:%s:%s".format(mon, day, year, hour, min, sec);
58 		default: 
59 			return "%s. %s. %s - %s:%s:%s".format(day, mon, year, hour, min, sec);
60 	}
61 }
62 unittest{
63 		
64 }
65 
66 /// Convert timestamp to DateTime 
67 @safe string timestampToDateTimeDE(string timeStamp) { return timestampToDateTimeDE(to!size_t(timeStamp)); }
68 @safe string timestampToDateTimeDE(size_t timeStamp) { return SysTime(timeStamp).toISOExtString.split(".")[0].replace("T", " "); }
69 unittest{
70 	/// TODO	
71 }
72 
73 /// Convert now to Javascript	
74 @safe long nowForJs() {
75 	auto jsTime = DateTime(1970, 1, 1, 0, 0, 0);
76 	auto dTime = cast(DateTime)now();
77 	return (dTime - jsTime).total!"msecs";
78 }
79 unittest{
80 	/// TODO	
81 }
82 
83 /// Convert DateTime to Javascript
84 @safe long datetimeForJs(string dt) {
85 	auto jsTime = DateTime(1970, 1, 1, 0, 0, 0);
86 	auto dTime = cast(DateTime)SysTime.fromISOExtString(dt);
87 	return (dTime-jsTime).total!"msecs";
88 }
89 unittest{
90 	/// TODO	
91 }
92 
93 /// Convert Javascript to dateTime
94 @safe DateTime jsToDatetime(long jsTime) {
95 	auto result = DateTime(1970, 1, 1, 0, 0, 0)+msecs(jsTime);
96 	return cast(DateTime)result;
97 }
98 unittest{
99 	/// TODO	
100 }
101 
102 /// Convert dateTime to german Date string 
103 @safe string germanDate(long dt) {
104 		return germanDate(cast(DateTime)fromTimestamp(dt));
105 }
106 @safe string germanDate(DateTime dt) {
107 	auto strDay = to!string(dt.day);
108 	if (strDay.length < 2) strDay = "0"~strDay;
109 
110 	auto strMonth = to!string(cast(int)dt.month);
111 	if (strMonth.length < 2) strMonth = "0"~strMonth;
112 
113 	auto strYear = to!string(dt.year); 
114 	return "%s.%s.%s".format(strDay, strMonth, strYear);
115 }
116 unittest{
117 	/// TODO	
118 }
119 
120 // Convert dateTime to ISO string
121 @safe string isoDate(DateTime dt) {
122 	auto m = (cast(int)dt.month < 10 ? "0"~to!string(cast(int)dt.month) : to!string(cast(int)dt.month));
123 	auto d = (dt.day < 10 ? "0"~to!string(dt.day) : to!string(dt.day));
124 	return "%s-%s-%s".format(dt.year, m, d);
125 }
126 unittest{
127 	/// TODO	
128 }
129 
130 /// Convert dateTiem to german Date string 
131 @safe string toYYYYMMDD(SysTime datetime, string separator = "") {
132 	return toYYYYMMDD(cast(DateTime)datetime, separator);
133 }
134 @safe string toYYYYMMDD(DateTime datetime, string separator = "") {
135 	string[] results;
136 	results ~= to!string(datetime.year);
137 	results ~= (datetime.month < 10 ? "0" : "")~to!string(to!int(datetime.month));
138 	results ~= (datetime.day < 10 ? "0" : "")~to!string(datetime.day);
139 	return results.join(separator);
140 }
141 unittest{
142 	assert(DateTime(Date(1999, 7, 6)).toYYYYMMDD("-") == "1999-07-06");
143 }