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Refactor groups method in BDatesList to use dates::group_dates_helper

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This commit is contained in:
Palash Tyagi 2025-05-14 23:52:11 +01:00
parent f5fd935475
commit 629c9d84e2
1 changed files with 1 additions and 38 deletions
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39
src/utils/dateutils/bdates.rs
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@ -219,45 +219,8 @@ impl BDatesList {
///
/// Returns an error if the start or end date strings cannot be parsed.
pub fn groups(&self) -> Result<Vec<Vec<NaiveDate>>, Box<dyn Error>> {
// Retrieve all business dates in chronological order.
let dates = self.list()?;
// Aggregate dates into buckets keyed by period.
let mut groups: HashMap<GroupKey, Vec<NaiveDate>> = HashMap::new();
for date in dates {
// Derive the appropriate GroupKey for the current date based on the configured frequency.
let key = match self.freq {
DateFreq::Daily => GroupKey::Daily(date),
DateFreq::WeeklyMonday | DateFreq::WeeklyFriday => {
let iso_week = date.iso_week();
GroupKey::Weekly(iso_week.year(), iso_week.week())
}
DateFreq::MonthStart | DateFreq::MonthEnd => {
GroupKey::Monthly(date.year(), date.month())
}
DateFreq::QuarterStart | DateFreq::QuarterEnd => {
GroupKey::Quarterly(date.year(), dates::month_to_quarter(date.month()))
}
DateFreq::YearStart | DateFreq::YearEnd => GroupKey::Yearly(date.year()),
};
// Append the date to its period group.
groups.entry(key).or_insert_with(Vec::new).push(date);
}
// Transform the group map into a vector of (GroupKey, Vec<NaiveDate>) tuples.
let mut sorted_groups: Vec<(GroupKey, Vec<NaiveDate>)> = groups.into_iter().collect();
// Sort groups chronologically using the derived `Ord` implementation on `GroupKey`.
sorted_groups.sort_by(|(k1, _), (k2, _)| k1.cmp(k2));
// Note: Dates within each group remain sorted due to initial ordered input.
// Discard group keys to return only the list of date vectors.
let result_groups = sorted_groups.into_iter().map(|(_, dates)| dates).collect();
Ok(result_groups)
dates::group_dates_helper(dates, self.freq)
}
/// Returns the start date parsed as a `NaiveDate`.