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use std::{io::Write, str::FromStr};
#[derive(Debug, Clone, Copy, Eq, PartialEq)]
#[cfg_attr(feature = "serde", derive(serde::Serialize))]
pub struct ActivationTimes {
start: Option<iso8601::DateTime>,
end: Option<iso8601::DateTime>,
}
impl ActivationTimes {
pub fn new(start: Option<iso8601::DateTime>, end: Option<iso8601::DateTime>) -> Self {
Self { start, end }
}
pub fn none() -> Self {
Self::new(None, None)
}
/// Writes the activation times in OpenAir format.
pub fn write<W: Write>(&self, mut writer: W) -> std::io::Result<()> {
match (self.start, self.end) {
(None, None) => write!(writer, "NONE"),
(Some(start), None) => write!(writer, "{start}/NONE"),
(None, Some(end)) => write!(writer, "NONE/{end}"),
(Some(start), Some(end)) => write!(writer, "{start}/{end}"),
}
}
}
impl FromStr for ActivationTimes {
type Err = String;
fn from_str(data: &str) -> Result<Self, Self::Err> {
if data.eq_ignore_ascii_case("NONE") {
return Ok(ActivationTimes::none());
}
let Some((start, end)) = data.split_once('/') else {
return Err(format!("Invalid activation times record: {}", data));
};
let start = if start.eq_ignore_ascii_case("NONE") {
None
} else {
Some(iso8601::datetime(start)?)
};
let end = if end.eq_ignore_ascii_case("NONE") {
None
} else {
Some(iso8601::datetime(end)?)
};
Ok(ActivationTimes::new(start, end))
}
}
#[cfg(test)]
mod tests {
use insta::assert_debug_snapshot;
use super::*;
#[test]
fn test_parse() {
// Active from 12:00 to 13:00 UTC
assert_debug_snapshot!("2023-12-16T12:00Z/2023-12-16T13:00Z".parse::<ActivationTimes>().unwrap(), @r"
ActivationTimes {
start: Some(
DateTime {
date: YMD {
year: 2023,
month: 12,
day: 16,
},
time: Time {
hour: 12,
minute: 0,
second: 0,
millisecond: 0,
tz_offset_hours: 0,
tz_offset_minutes: 0,
},
},
),
end: Some(
DateTime {
date: YMD {
year: 2023,
month: 12,
day: 16,
},
time: Time {
hour: 13,
minute: 0,
second: 0,
millisecond: 0,
tz_offset_hours: 0,
tz_offset_minutes: 0,
},
},
),
}
");
// Active for the entire UTC day
assert_debug_snapshot!("2024-12-17T00:00Z/2024-12-17T24:00Z".parse::<ActivationTimes>().unwrap(), @r"
ActivationTimes {
start: Some(
DateTime {
date: YMD {
year: 2024,
month: 12,
day: 17,
},
time: Time {
hour: 0,
minute: 0,
second: 0,
millisecond: 0,
tz_offset_hours: 0,
tz_offset_minutes: 0,
},
},
),
end: Some(
DateTime {
date: YMD {
year: 2024,
month: 12,
day: 17,
},
time: Time {
hour: 24,
minute: 0,
second: 0,
millisecond: 0,
tz_offset_hours: 0,
tz_offset_minutes: 0,
},
},
),
}
");
// Active from midnight UTC until unspecified end
assert_debug_snapshot!("2024-12-17T00:00Z/NONE".parse::<ActivationTimes>().unwrap(), @r"
ActivationTimes {
start: Some(
DateTime {
date: YMD {
year: 2024,
month: 12,
day: 17,
},
time: Time {
hour: 0,
minute: 0,
second: 0,
millisecond: 0,
tz_offset_hours: 0,
tz_offset_minutes: 0,
},
},
),
end: None,
}
");
// Active until midnight UTC, with unknown start
assert_debug_snapshot!("NONE/2024-12-18T00:00Z".parse::<ActivationTimes>().unwrap(), @r"
ActivationTimes {
start: None,
end: Some(
DateTime {
date: YMD {
year: 2024,
month: 12,
day: 18,
},
time: Time {
hour: 0,
minute: 0,
second: 0,
millisecond: 0,
tz_offset_hours: 0,
tz_offset_minutes: 0,
},
},
),
}
");
// No defined time - inactive
assert_debug_snapshot!("NONE".parse::<ActivationTimes>().unwrap(), @r"
ActivationTimes {
start: None,
end: None,
}
");
}
fn write_activation_times(times: &ActivationTimes) -> String {
let mut buf = Vec::new();
times.write(&mut buf).unwrap();
String::from_utf8(buf).unwrap()
}
#[test]
fn write() {
// Full range
let times = "2023-12-16T12:00Z/2023-12-16T13:00Z"
.parse::<ActivationTimes>()
.unwrap();
assert_eq!(
write_activation_times(×),
"2023-12-16T12:00:00.0+00:00/2023-12-16T13:00:00.0+00:00"
);
// Start only
let times = "2024-12-17T00:00Z/NONE".parse::<ActivationTimes>().unwrap();
assert_eq!(
write_activation_times(×),
"2024-12-17T00:00:00.0+00:00/NONE"
);
// End only
let times = "NONE/2024-12-18T00:00Z".parse::<ActivationTimes>().unwrap();
assert_eq!(
write_activation_times(×),
"NONE/2024-12-18T00:00:00.0+00:00"
);
// None
let times = "NONE".parse::<ActivationTimes>().unwrap();
assert_eq!(write_activation_times(×), "NONE");
}
}