lez-programs/programs/twap_oracle/src/lib.rs

//! The TWAP Oracle Program implementation.

pub use twap_oracle_core as core;

pub mod create_price_observations;
chore(twap_oracle): scaffold twap_oracle program Closes #114 2026-05-14 00:20:14 -03:00			`//! The TWAP Oracle Program implementation.`

			`pub use twap_oracle_core as core;`

feat(twap-oracle): implement CreatePriceObservations instruction Adds the CreatePriceObservations instruction to the TWAP oracle program. The instruction initialises a PriceObservations PDA for a given price source account and time window, writing the initial tick and timestamp as the first entry. Key design decisions: - Per-window accounts: each (price_source, window_duration) pair maps to a distinct PriceObservations PDA. The window duration is baked into the PDA seed so a single price source can support multiple TWAP windows (24h, 7d, 30d) at independent sampling rates without sharing a buffer. - window_duration not stored on struct: it is implicit in the PDA address. Any reader that located the account already knows the window duration used to derive it. Storing it would be redundant. - Authorization is implicit: the PriceObservations PDA is derived from the price source account ID, so is_authorized = true on the price source proves the caller controls it without a redundant authority field. - Impersonation is prevented by the PDA check: passing a controlled price source with a victim's observations account ID fails immediately because the computed PDA (from the attacker's source) does not match. Closes #126 2026-05-28 10:35:05 +02:00			`pub mod create_price_observations;`