lez-programs/programs/twap_oracle/Cargo.toml

[package]
name = "twap_oracle_program"
version = "0.1.0"
edition = "2021"

[dependencies]
nssa_core = { git = "https://github.com/logos-blockchain/logos-execution-zone.git", tag = "v0.2.0", features = ["host"], package = "lee_core" }
clock_core = { git = "https://github.com/logos-blockchain/logos-execution-zone.git", tag = "v0.2.0" }
twap_oracle_core = { path = "core" }

[lints]
workspace = true
chore(twap_oracle): scaffold twap_oracle program Closes #114 2026-05-14 00:20:14 -03:00			`[package]`
			`name = "twap_oracle_program"`
			`version = "0.1.0"`
			`edition = "2021"`

			`[dependencies]`
build(deps): bump spel to v0.6.0 and logos-execution-zone to v0.2.0 Move the spel-framework dependency from the 0x-r4bbit/spel fork (v0.5.0 @ 91023c9, the refactor/lez-v020-compat branch) to the released logos-co/spel tag v0.6.0. spel v0.6.0 is built against the final logos-execution-zone v0.2.0, not the v0.2.0-rc6 this repo pinned. The two must match: with rc6, the guest ELF build fails because spel's lee_core::program::ValidityWindow and the repo's own copy are distinct types the #[lez_program] macro can't unify. So this also bumps every logos-execution-zone pin (lee/lee_core aliased as nssa/nssa_core, plus clock_core) from v0.2.0-rc6 to the final v0.2.0. - 10 Cargo.toml switched to logos-co/spel tag v0.6.0 - 24 logos-execution-zone pins across 18 Cargo.toml moved rc6 -> v0.2.0 - All 7 Cargo.lock files re-resolved (root + 5 guest workspaces + benchmark); pulls in lee_core v0.1.0 (v0.2.0) as a spel transitive dep Guest ImageIDs change as a result: the ID hashes the whole guest ELF, which links the updated spel-framework and lee_core object code, even though the program sources are unchanged. Update any ImageID-derived values (deployed program IDs, PDA addresses, AMM/ATA program-id inputs) before submitting transactions. 2026-07-15 13:41:01 +02:00			`nssa_core = { git = "https://github.com/logos-blockchain/logos-execution-zone.git", tag = "v0.2.0", features = ["host"], package = "lee_core" }`
			`clock_core = { git = "https://github.com/logos-blockchain/logos-execution-zone.git", tag = "v0.2.0" }`
chore(twap_oracle): scaffold twap_oracle program Closes #114 2026-05-14 00:20:14 -03:00			`twap_oracle_core = { path = "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
			`[lints]`
			`workspace = true`