Convert from IFC back to Gregorian

This commit is contained in:
Savanni D'Gerinel 2023-01-01 10:18:06 -05:00
parent 08029a2afd
commit 58d9a12e9f
2 changed files with 329 additions and 72 deletions

346
ifc/Cargo.lock generated
View File

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@ -998,6 +1207,15 @@ version = "0.4.0"
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[[package]]
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View File

@ -122,7 +122,7 @@ pub enum IFC {
}
impl IFC {
fn leap_day(year: i32) -> Result<Self, Error> {
pub fn leap_day(year: i32) -> Result<Self, Error> {
if is_leap_year(year) {
Ok(Self::LeapDay(year))
} else {
@ -130,11 +130,11 @@ impl IFC {
}
}
fn year_day(year: i32) -> Self {
pub fn year_day(year: i32) -> Self {
Self::YearDay(year)
}
fn ymd(year: i32, month: u8, day: u8) -> Result<Self, Error> {
pub fn ymd(year: i32, month: u8, day: u8) -> Result<Self, Error> {
if month < 1 || month > 13 {
Err(Error::InvalidDate)
} else if day < 1 || day > 28 {
@ -144,7 +144,15 @@ impl IFC {
}
}
fn day_of_week(&self) -> DayOfWeek {
pub fn year(&self) -> i32 {
match *self {
IFC::LeapDay(year) => year,
IFC::YearDay(year) => year,
IFC::Day(Day { year, .. }) => year,
}
}
pub fn day_of_week(&self) -> DayOfWeek {
match *self {
IFC::LeapDay(_) => DayOfWeek::LeapDay,
IFC::YearDay(_) => DayOfWeek::YearDay,
@ -161,11 +169,11 @@ impl IFC {
}
}
fn day_ordinal(&self) -> u32 {
pub fn day_ordinal(&self) -> u32 {
self.day_ordinal0() + 1
}
fn day_ordinal0(&self) -> u32 {
pub fn day_ordinal0(&self) -> u32 {
match *self {
IFC::LeapDay(_) => 168,
IFC::YearDay(year) => {
@ -187,11 +195,11 @@ impl IFC {
}
}
fn week_ordinal(&self) -> u32 {
pub fn week_ordinal(&self) -> u32 {
self.week_ordinal0() + 1
}
fn week_ordinal0(&self) -> u32 {
pub fn week_ordinal0(&self) -> u32 {
match *self {
IFC::LeapDay(_) => 0,
IFC::YearDay(_) => 0,
@ -231,6 +239,13 @@ impl From<chrono::NaiveDate> for IFC {
}
}
impl From<IFC> for chrono::NaiveDate {
fn from(ifc: IFC) -> Self {
Self::from_ymd_opt(ifc.year(), 1, 1).unwrap()
+ chrono::naive::Days::new(ifc.day_ordinal0().into())
}
}
/*
#[derive(Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord)]
pub struct IFC {
@ -740,6 +755,30 @@ mod tests {
IFC::YearDay(12020)
);
}
#[test]
fn it_converts_to_gregorian() {
assert_eq!(
NaiveDate::from(IFC::ymd(12020, 1, 1).unwrap()),
NaiveDate::from_ymd_opt(12020, 1, 1).unwrap()
);
assert_eq!(
NaiveDate::from(IFC::leap_day(12020).unwrap()),
NaiveDate::from_ymd_opt(12020, 6, 17).unwrap()
);
assert_eq!(
NaiveDate::from(IFC::ymd(12020, 3, 4).unwrap()),
NaiveDate::from_ymd_opt(12020, 2, 29).unwrap()
);
assert_eq!(
NaiveDate::from(IFC::year_day(12020)),
NaiveDate::from_ymd_opt(12020, 12, 31).unwrap()
);
}
/*
#[test]
fn check_start_of_month() {