Add DateTime

src/util/DateTime.zig

@@ -0,0 +1,49 @@
+const DateTime = @This();
+
+const std = @import("std");
+
+seconds_since_epoch: i64,
+
+pub fn now() DateTime {
+    return .{ .seconds_since_epoch = std.time.timestamp() };
+}
+
+pub fn epochSeconds(value: DateTime) std.time.epoch.EpochSeconds {
+    return .{ .secs = @intCast(u64, value.seconds_since_epoch) };
+}
+
+pub fn year(value: DateTime) std.time.epoch.Year {
+    return value.epochSeconds().getEpochDay().calculateYearDay().year;
+}
+
+pub fn month(value: DateTime) std.time.epoch.Month {
+    return value.epochSeconds().getEpochDay().calculateYearDay().calculateMonthDay().month;
+}
+
+pub fn day(value: DateTime) u9 {
+    return value.epochSeconds().getEpochDay().calculateYearDay().calculateMonthDay().day;
+}
+
+pub fn hour(value: DateTime) u5 {
+    return value.epochSeconds().getDaySeconds().getHoursIntoDay();
+}
+
+pub fn minute(value: DateTime) u6 {
+    return value.epochSeconds().getDaySeconds().getMinutesIntoHour();
+}
+
+pub fn second(value: DateTime) u6 {
+    return value.epochSeconds().getDaySeconds().getSecondsIntoMinute();
+}
+
+pub fn format(value: DateTime, comptime _: []const u8, _: std.fmt.FormatOptions, writer: anytype) !void {
+    return std.fmt.format(
+        writer,
+        "{}-{}-{}T{}{}{}",
+        .{ value.year(), value.month().numeric(), value.day(), value.hour(), value.minute(), value.second() },
+    );
+}
+
+pub fn jsonStringify(value: DateTime, _: std.json.StringifyOptions, writer: anytype) !void {
+    try std.fmt.format(writer, "\"{}\"", .{value});
+}

src/util/lib.zig

@@ -1,9 +1,11 @@
 pub const ciutf8 = @import("./ciutf8.zig");
 pub const Uuid = @import("./Uuid.zig");
+pub const DateTime = @import("./DateTime.zig");
 pub const PathIter = @import("./PathIter.zig");
 
 test {
     _ = ciutf8;
     _ = Uuid;
     _ = PathIter;
+    _ = DateTime;
 }