devisualization.util.core.time source code

1 /**
2  * License:
3  *              Copyright Devisualization (Richard Andrew Cattermole) 2014 - 2017.
4  *     Distributed under the Boost Software License, Version 1.0.
5  *        (See accompanying file LICENSE_1_0.txt or copy at
6  *              http://www.boost.org/LICENSE_1_0.txt)
7  */
8 module devisualization.util.core.time;
9 import std.datetime : SysTime, Clock;
10 import core.time : Duration;
11 
12 /**
13  * UTC+0 time
14  */
15 @property {
16 	/**
17 	 * Gets the current time without any offsets.
18 	 * 
19 	 * Returns:
20 	 * 		The time (UNIX) without any offsets.
21 	 */
22 	ulong utc0Time() {
23 		return utc0SysTime().toUnixTime();
24 	}
25 
26 	/**
27 	 * Gets the current time without any offsets.
28 	 * 
29 	 * Returns:
30 	 * 		The time without any offsets.
31 	 */
32 	SysTime utc0SysTime() {
33 		return Clock.currTime().removeOffset;
34 	}
35 
36 	/**
37 	 * Gets the time this application was compiled without any offsets.
38 	 * 
39 	 * Returns:
40 	 * 		The time (UNIX) without any offsets.
41 	 */
42 	ulong utc0Compiled() {
43 		return utc0CompiledSysTime().toUnixTime();
44 	}
45 
46 	/**
47 	 * Gets the time this application was compiled without any offsets.
48 	 * 
49 	 * Returns:
50 	 * 		The time without any offsets.
51 	 */
52 	SysTime utc0CompiledSysTime() {
53 		import devisualization.util.core.text : replace, split;
54 		string timestamp = __TIMESTAMP__.replace("  ", " ");
55 		string[] values = timestamp.split(" ");
56 		
57 		string timeo;
58 		timeo ~= values[4] ~ "-";
59 		timeo ~= values[1] ~ "-";
60 		
61 		if (values[2].length == 1)
62 			timeo ~= "0";
63 		timeo ~= values[2] ~ " ";
64 		
65 		timeo ~= values[3];
66 
67 		return SysTime.fromSimpleString(timeo).removeOffset;
68 	}
69 }
70 
71 /**
72  * Removes the offset on a time object
73  */
74 SysTime removeOffset(SysTime time) {
75 	time -= time.utcOffset;
76 	return time;
77 }
78 
79 private {
80 	string utc0CompiledTimeStamp() {
81 		import devisualization.util.core.text : split;
82 		import std.conv : to;
83 		import std..string : toUpper;
84 		auto time = utc0CompiledSysTime();
85 		
86 		string dayOfWeek = to!string(time.dayOfWeek);
87 		string month = to!string(time.month);
88 		dayOfWeek = cast(char)toUpper(dayOfWeek[0]) ~ dayOfWeek[1 .. $];
89 		month = cast(char)toUpper(month[0]) ~ month[1 .. $];
90 		
91 		string output;
92 		output ~= dayOfWeek ~ ", ";
93 		output ~= to!string(time.day) ~ " ";
94 		output ~= month ~ " ";
95 		output ~= to!string(time.year) ~ " ";
96 		output ~= time.toSimpleString().split(" ")[1] ~ " GMT";
97 		
98 		return output;
99 	}
100 }