max / makenotwork

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1	//! Date/time parsing helpers for user-supplied schedule inputs.
2
3	/// Parse an optional datetime string for scheduled publishing.
4	///
5	/// Accepts ISO 8601 (RFC 3339) or HTML `datetime-local` format (`%Y-%m-%dT%H:%M`).
6	/// Returns `Some(Some(dt))` for a valid datetime, `Some(None)` for empty string
7	/// (clear schedule), or `None` for absent input (no change).
8	pub fn parse_schedule_datetime(s: Option<&str>) -> Option<Option<chrono::DateTime<chrono::Utc>>> {
9	s.map(\|s\| {
10	if s.is_empty() {
11	None
12	} else {
13	chrono::DateTime::parse_from_rfc3339(s)
14	.map(\|dt\| dt.with_timezone(&chrono::Utc))
15	.or_else(\|_\| {
16	chrono::NaiveDateTime::parse_from_str(s, "%Y-%m-%dT%H:%M")
17	.map(\|naive\| naive.and_utc())
18	})
19	.ok()
20	}
21	})
22	}
23
24	#[cfg(test)]
25	mod tests {
26	use super::*;
27
28	#[test]
29	fn parse_schedule_datetime_none_input() {
30	assert!(parse_schedule_datetime(None).is_none());
31	}
32
33	#[test]
34	fn parse_schedule_datetime_empty_clears() {
35	assert_eq!(parse_schedule_datetime(Some("")), Some(None));
36	}
37
38	#[test]
39	fn parse_schedule_datetime_rfc3339() {
40	assert!(
41	parse_schedule_datetime(Some("2026-04-29T12:00:00Z"))
42	.unwrap()
43	.is_some()
44	);
45	}
46
47	#[test]
48	fn parse_schedule_datetime_html_local() {
49	assert!(
50	parse_schedule_datetime(Some("2026-04-29T12:00"))
51	.unwrap()
52	.is_some()
53	);
54	}
55	}
56