Struct SessionHistoryIntegration 

pub struct SessionHistoryIntegration;

Narrow integration surface used by the kcode-session-history facade.

Ordinary callers should create and reopen sessions through kcode_session_history::SessionHistory. Keeping construction and raw-log replay here lets that facade retain sole ownership of session lifecycle while this crate owns Chatend’s mechanical persistence and projection.

Implementations

impl SessionHistoryIntegration

pub fn create_session( path: impl AsRef<Path>, metadata: SessionMetadata, ) -> Result<Session>

Creates a durable Chatend session for the history facade.

pub fn open_session( path: impl AsRef<Path>, metadata: SessionMetadata, default_provider_model: Option<&str>, estimator: Option<ProviderCostEstimator>, ) -> Result<Session>

Reopens a durable Chatend session for the history facade.

When estimator is present, historical provider receipts that predate stored cost fields are projected using default_provider_model and the supplied estimator without rewriting durable history.

pub fn replay( metadata: SessionMetadata, log: &SessionLog, default_provider_model: Option<&str>, estimator: Option<ProviderCostEstimator>, ) -> Result<Chatend>

Replays a raw session log into exact Chatend state for presentation.

Optional compatibility pricing affects only the returned projection and never mutates the supplied log.

pub fn legacy_provider_cost_summary_for_archive( archive: &Value, default_provider_model: Option<&str>, estimator: ProviderCostEstimator, ) -> Result<ProviderCostSummary>

Reconstructs compatible cost fields from an immutable session archive.

The archive is not modified.