Struct MeterStore 

pub struct MeterStore { /* private fields */ }

Append-only local JSONL store.

Implementations

impl MeterStore

pub fn new(data_dir: impl AsRef<Path>) -> Self

pub fn from_data_dir() -> Result<Self, String>

pub fn path(&self) -> &Path

pub fn append(&self, entry: &MeterEntry) -> Result<(), String>

Appends one complete JSON object and newline. Call this only off the hot path.

pub fn append_best_effort(entry: MeterEntry)

Schedules persistence and returns immediately; metering cannot delay a tool call.

pub fn aggregate(&self) -> MeterAggregate

pub fn day_totals(&self, day: NaiveDate) -> DayTotals

Totals for the UTC day day. The file is append-only and chronological and grows to tens of MB, so it is read backwards and parsing stops at the first earlier entry: the cost follows the day’s volume, not the history.

pub fn day_totals_where( &self, day: NaiveDate, keep: impl Fn(Option<&str>) -> bool, ) -> DayTotals

Self::day_totals over the entries whose project key keep accepts.

Trait Implementations

impl Clone for MeterStore

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for MeterStore

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.