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LifecycleEngine

defi_tracker_lifecycle::lifecycle

Struct LifecycleEngine 

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pub struct LifecycleEngine;
Expand description

Stateless decision engine for order lifecycle state machines.

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impl LifecycleEngine

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pub fn decide_transition( current_terminal: Option<TerminalStatus>, transition: LifecycleTransition, ) -> TransitionDecision

Decides whether transition should be applied given the order’s current terminal state.

Non-terminal orders (None) accept all transitions. Terminal orders only accept LifecycleTransition::MetadataOnly.

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pub fn normalize_snapshot_to_delta( stored_total: i64, snapshot_total: i64, ) -> SnapshotDelta

Converts a cumulative snapshot into a non-negative delta relative to stored_total.

If the snapshot regressed, delta is clamped to 0 and regression is flagged.

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