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feat(ledger): Distribute sdp rewards (#1927)

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This commit is contained in:
Giacomo Pasini
2025-11-19 18:55:41 +01:00
committed by GitHub
parent 83f68b0274
commit cdcc3e754b
4 changed files with 303 additions and 154 deletions
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ledger/nomos-ledger/src/lib.rs
+8 -2
View File
@@ -173,12 +173,18 @@ impl LedgerState {
where
LeaderProof: leader_proof::LeaderProof,
{
let cryptarchia_ledger = self
let mut cryptarchia_ledger = self
.cryptarchia_ledger
.try_apply_header::<LeaderProof, Id>(slot, proof, config)?;
let mantle_ledger =
let (mantle_ledger, reward_utxos) =
self.mantle_ledger
.try_apply_header(config.epoch(slot), voucher, config)?;
// Insert reward UTXOs into the cryptarchia ledger
for utxo in reward_utxos {
cryptarchia_ledger.utxos = cryptarchia_ledger.utxos.insert(utxo.id(), utxo).0;
}
Ok(Self {
block_number: self
.block_number
ledger/nomos-ledger/src/mantle/mod.rs
+5 -4
View File
@@ -8,7 +8,7 @@ use cryptarchia_engine::Epoch;
use nomos_core::{
block::BlockNumber,
mantle::{
AuthenticatedMantleTx, GasConstants, GenesisTx, NoteId, TxHash,
AuthenticatedMantleTx, GasConstants, GenesisTx, NoteId, TxHash, Utxo,
ops::{Op, OpProof, leader_claim::VoucherCm},
},
sdp::{Declaration, DeclarationId, ProviderId, ProviderInfo, ServiceType, SessionNumber},
@@ -130,10 +130,11 @@ impl LedgerState {
epoch: Epoch,
voucher: VoucherCm,
config: &Config,
) -> Result<Self, Error> {
) -> Result<(Self, Vec<Utxo>), Error> {
self.leaders = self.leaders.try_apply_header(epoch, voucher)?;
self.sdp = self.sdp.try_apply_header(&config.sdp_config)?;
Ok(self)
let (new_sdp, reward_utxos) = self.sdp.try_apply_header(&config.sdp_config)?;
self.sdp = new_sdp;
Ok((self, reward_utxos))
}
fn try_apply_ops<'a>(
ledger/nomos-ledger/src/mantle/sdp/mod.rs
+76 -70
View File
@@ -8,7 +8,7 @@ use locked_notes::LockedNotes;
use nomos_core::{
block::BlockNumber,
mantle::{
Note, NoteId, OpProof, TxHash,
Note, NoteId, OpProof, TxHash, Utxo,
ops::sdp::{SDPActiveOp, SDPDeclareOp, SDPWithdrawOp},
},
sdp::{
@@ -17,6 +17,7 @@ use nomos_core::{
},
};
use rewards::{DaRewards, Error as RewardsError, NoopRewards, Rewards};
use zksign::PublicKey;
use crate::UtxoTree;
@@ -30,13 +31,17 @@ enum Service {
}
impl Service {
fn try_apply_header(self, block_number: u64, config: &ServiceParameters) -> Self {
fn try_apply_header(self, block_number: u64, config: &ServiceParameters) -> (Self, Vec<Utxo>) {
match self {
Self::DataAvailability(state) => {
Self::DataAvailability(state.try_apply_header(block_number, config))
let (new_state, utxos) =
state.try_apply_header(block_number, config, ServiceType::DataAvailability);
(Self::DataAvailability(new_state), utxos)
}
Self::BlendNetwork(state) => {
Self::BlendNetwork(state.try_apply_header(block_number, config))
let (new_state, utxos) =
state.try_apply_header(block_number, config, ServiceType::BlendNetwork);
(Self::BlendNetwork(new_state), utxos)
}
}
}
@@ -203,30 +208,23 @@ impl SessionState {
}
self.clone()
}
/// Get provider ID by index using the stable iteration order of the map.
///
/// The `RedBlackTrieMapSync` provides a stable iteration order based on its
/// internal structure.
#[must_use]
pub fn get_provider_by_index(&self, index: usize) -> Option<ProviderId> {
self.declarations
.values()
.nth(index)
.map(|decl| decl.provider_id)
}
}
impl<R: Rewards> ServiceState<R> {
fn try_apply_header(mut self, block_number: u64, config: &ServiceParameters) -> Self {
fn try_apply_header(
mut self,
block_number: u64,
config: &ServiceParameters,
_service_type: ServiceType,
) -> (Self, Vec<Utxo>) {
// TODO: remove expired declarations based on retention_period
let current_session = config.session_for_block(block_number);
let reward_utxos;
// shift all session!
if current_session == self.active.session_n + 1 {
// Update rewards with current session state and distribute rewards
let (new_rewards, _reward_amounts) = self.rewards.update_session(&self.active, config);
self.rewards = new_rewards;
// TODO: Process rewards distribution (e.g., mint reward notes)
// Calculate new rewards for the ending session (to be distributed at N+2)
(self.rewards, reward_utxos) = self.rewards.update_session(&self.active, config);
self.active = self.forming.clone();
self.forming = SessionState {
declarations: self.declarations.clone(),
@@ -238,9 +236,10 @@ impl<R: Rewards> ServiceState<R> {
"Nomos isn't ready for time travel yet"
);
self.forming = self.forming.update(&self, block_number, config);
reward_utxos = Vec::new();
}
self
(self, reward_utxos)
}
fn declare(&mut self, id: DeclarationId, declaration: Declaration) -> Result<(), Error> {
@@ -273,7 +272,7 @@ impl<R: Rewards> ServiceState<R> {
declaration.locked_note_id,
)))?;
if !zksign::PublicKey::verify_multi(&[note.pk, declaration.zk_id], &tx_hash.0, sig) {
if !PublicKey::verify_multi(&[note.pk, declaration.zk_id], &tx_hash.0, sig) {
return Err(Error::InvalidSignature);
}
@@ -309,7 +308,7 @@ impl<R: Rewards> ServiceState<R> {
let note = locked_notes.unlock(declaration.service_type, &declaration.locked_note_id)?;
if !zksign::PublicKey::verify_multi(&[note.pk, declaration.zk_id], &tx_hash.0, sig) {
if !PublicKey::verify_multi(&[note.pk, declaration.zk_id], &tx_hash.0, sig) {
return Err(Error::InvalidSignature);
}
self.declarations = self.declarations.remove(&withdraw.declaration_id);
@@ -425,26 +424,33 @@ impl SdpLedger {
self
}
pub fn try_apply_header(&self, config: &Config) -> Result<Self, Error> {
pub fn try_apply_header(&self, config: &Config) -> Result<(Self, Vec<Utxo>), Error> {
let block_number = self.block_number + 1; // overflow?
Ok(Self {
block_number,
services: self
.services
.iter()
.map(|(service, service_state)| {
let config = config
.service_params
.get(service)
.ok_or(Error::SessionParamsNotFound(*service))?;
Ok::<_, Error>((
*service,
service_state.clone().try_apply_header(block_number, config),
))
})
.collect::<Result<_, _>>()?,
locked_notes: self.locked_notes.clone(),
})
let mut all_reward_utxos = Vec::new();
let services = self
.services
.iter()
.map(|(service, service_state)| {
let config = config
.service_params
.get(service)
.ok_or(Error::SessionParamsNotFound(*service))?;
let (new_state, reward_utxos) =
service_state.clone().try_apply_header(block_number, config);
all_reward_utxos.extend(reward_utxos.into_iter());
Ok::<_, Error>((*service, new_state))
})
.collect::<Result<_, _>>()?;
Ok((
Self {
block_number,
services,
locked_notes: self.locked_notes.clone(),
},
all_reward_utxos,
))
}
pub fn apply_declare_msg(
@@ -456,7 +462,7 @@ impl SdpLedger {
tx_hash: TxHash,
config: &Config,
) -> Result<Self, Error> {
if !zksign::PublicKey::verify_multi(&[note.pk, op.zk_id], &tx_hash.0, zk_sig) {
if !PublicKey::verify_multi(&[note.pk, op.zk_id], &tx_hash.0, zk_sig) {
return Err(Error::InvalidSignature);
}
op.provider_id
@@ -743,7 +749,7 @@ mod tests {
// Apply headers to reach block 10 (session boundary)
let mut sdp_ledger = sdp_ledger;
for _ in 0..10 {
sdp_ledger = sdp_ledger.try_apply_header(&config).unwrap();
(sdp_ledger, _) = sdp_ledger.try_apply_header(&config).unwrap();
}
// At block 10, declaration enters forming session 2
@@ -784,7 +790,7 @@ mod tests {
// Move forward enough blocks to satisfy lock_period
let mut sdp_ledger = sdp_ledger;
for _ in 0..11 {
sdp_ledger = sdp_ledger.try_apply_header(&config).unwrap();
(sdp_ledger, _) = sdp_ledger.try_apply_header(&config).unwrap();
}
// Withdraw the declaration
@@ -829,7 +835,7 @@ mod tests {
// Apply headers to reach block 10 (session boundary for session_duration=10)
let mut sdp_ledger = sdp_ledger;
for _ in 0..10 {
sdp_ledger = sdp_ledger.try_apply_header(&config).unwrap();
(sdp_ledger, _) = sdp_ledger.try_apply_header(&config).unwrap();
}
// At block 10: active becomes session 1 (was empty forming), forming becomes
@@ -845,7 +851,7 @@ mod tests {
// Continue to block 20 to see declaration become active
for _ in 0..10 {
sdp_ledger = sdp_ledger.try_apply_header(&config).unwrap();
(sdp_ledger, _) = sdp_ledger.try_apply_header(&config).unwrap();
}
// At block 20: active becomes session 2 (with declaration)
@@ -865,7 +871,7 @@ mod tests {
// Apply headers to reach block 9 (still in session 0, promotion happens at
// block 10)
for _ in 0..9 {
sdp_ledger = sdp_ledger.try_apply_header(&config).unwrap();
(sdp_ledger, _) = sdp_ledger.try_apply_header(&config).unwrap();
}
// Check active session is still session 0 with no declarations
@@ -894,7 +900,7 @@ mod tests {
// At block 6, BlendNetwork hasn't promoted yet (6/10=0, active.session_n=0, so
// 0!=0+1)
for _ in 0..6 {
sdp_ledger = sdp_ledger.try_apply_header(&config).unwrap();
(sdp_ledger, _) = sdp_ledger.try_apply_header(&config).unwrap();
}
// Check DataAvailability is promoted to session 1
@@ -922,7 +928,7 @@ mod tests {
// SESSION 0: Add a declaration at block 5
for _ in 0..5 {
sdp_ledger = sdp_ledger.try_apply_header(&config).unwrap();
(sdp_ledger, _) = sdp_ledger.try_apply_header(&config).unwrap();
}
let declare_op = &SDPDeclareOp {
@@ -938,7 +944,7 @@ mod tests {
// Move to block 9 (last block of session 0)
for _ in 6..10 {
sdp_ledger = sdp_ledger.try_apply_header(&config).unwrap();
(sdp_ledger, _) = sdp_ledger.try_apply_header(&config).unwrap();
}
assert_eq!(sdp_ledger.block_number, 9);
@@ -952,7 +958,7 @@ mod tests {
assert!(forming_session.declarations.is_empty());
// SESSION 1: Cross session boundary to block 10
sdp_ledger = sdp_ledger.try_apply_header(&config).unwrap();
(sdp_ledger, _) = sdp_ledger.try_apply_header(&config).unwrap();
assert_eq!(sdp_ledger.block_number, 10);
// Active session 1 is empty (was the empty forming session 1)
@@ -967,9 +973,9 @@ mod tests {
// SESSION 2: Cross to block 20
for _ in 11..20 {
sdp_ledger = sdp_ledger.try_apply_header(&config).unwrap();
(sdp_ledger, _) = sdp_ledger.try_apply_header(&config).unwrap();
}
sdp_ledger = sdp_ledger.try_apply_header(&config).unwrap();
(sdp_ledger, _) = sdp_ledger.try_apply_header(&config).unwrap();
assert_eq!(sdp_ledger.block_number, 20);
// Now the declaration is active in session 2
@@ -1002,14 +1008,14 @@ mod tests {
// Move to block 9 (last block before session boundary)
for _ in 1..10 {
sdp_ledger = sdp_ledger.try_apply_header(&config).unwrap();
(sdp_ledger, _) = sdp_ledger.try_apply_header(&config).unwrap();
}
// Save state at block 9
let sdp_ledger_block_9 = sdp_ledger.clone();
// Add another declaration at block 10 (after session boundary)
sdp_ledger = sdp_ledger.try_apply_header(&config).unwrap();
(sdp_ledger, _) = sdp_ledger.try_apply_header(&config).unwrap();
assert_eq!(sdp_ledger.block_number, 10);
let zk_key_2 = create_zk_key(2);
@@ -1027,9 +1033,9 @@ mod tests {
// Jump to session 2 (block 20)
for _ in 11..20 {
sdp_ledger = sdp_ledger.try_apply_header(&config).unwrap();
(sdp_ledger, _) = sdp_ledger.try_apply_header(&config).unwrap();
}
sdp_ledger = sdp_ledger.try_apply_header(&config).unwrap();
(sdp_ledger, _) = sdp_ledger.try_apply_header(&config).unwrap();
// Active session (session 2) should contain both declarations
let active_session = sdp_ledger.get_active_session(service_a).unwrap();
@@ -1039,9 +1045,9 @@ mod tests {
// Now test from the block 9 state - jumping directly to block 20
let mut sdp_ledger_from_9 = sdp_ledger_block_9;
for _ in 10..20 {
sdp_ledger_from_9 = sdp_ledger_from_9.try_apply_header(&config).unwrap();
(sdp_ledger_from_9, _) = sdp_ledger_from_9.try_apply_header(&config).unwrap();
}
sdp_ledger_from_9 = sdp_ledger_from_9.try_apply_header(&config).unwrap();
(sdp_ledger_from_9, _) = sdp_ledger_from_9.try_apply_header(&config).unwrap();
// Active session should only contain declaration_id_1
// because declaration_id_2 was never added in this timeline
@@ -1069,7 +1075,7 @@ mod tests {
// Add declaration at block 3
for _ in 0..3 {
sdp_ledger = sdp_ledger.try_apply_header(&config).unwrap();
(sdp_ledger, _) = sdp_ledger.try_apply_header(&config).unwrap();
}
let declare_op = &SDPDeclareOp {
@@ -1085,9 +1091,9 @@ mod tests {
// Jump directly from block 3 to block 25 (skipping session 1 entirely)
for _ in 4..25 {
sdp_ledger = sdp_ledger.try_apply_header(&config).unwrap();
(sdp_ledger, _) = sdp_ledger.try_apply_header(&config).unwrap();
}
sdp_ledger = sdp_ledger.try_apply_header(&config).unwrap();
(sdp_ledger, _) = sdp_ledger.try_apply_header(&config).unwrap();
assert_eq!(sdp_ledger.block_number, 25);
// Declaration snapshots should be taken from the last known state
@@ -1117,7 +1123,7 @@ mod tests {
// Move to block 9 (last block of session 0)
for _ in 0..9 {
sdp_ledger = sdp_ledger.try_apply_header(&config).unwrap();
(sdp_ledger, _) = sdp_ledger.try_apply_header(&config).unwrap();
}
assert_eq!(sdp_ledger.block_number, 9);
@@ -1144,7 +1150,7 @@ mod tests {
// Cross to block 10 (session boundary - start of session 1)
// At this point, the snapshot for forming session 2 is taken
sdp_ledger = sdp_ledger.try_apply_header(&config).unwrap();
(sdp_ledger, _) = sdp_ledger.try_apply_header(&config).unwrap();
assert_eq!(sdp_ledger.block_number, 10);
let active_session = sdp_ledger.get_active_session(service_a).unwrap();
@@ -1179,9 +1185,9 @@ mod tests {
// Jump to block 20 (start of session 2)
for _ in 11..20 {
sdp_ledger = sdp_ledger.try_apply_header(&config).unwrap();
(sdp_ledger, _) = sdp_ledger.try_apply_header(&config).unwrap();
}
sdp_ledger = sdp_ledger.try_apply_header(&config).unwrap();
(sdp_ledger, _) = sdp_ledger.try_apply_header(&config).unwrap();
assert_eq!(sdp_ledger.block_number, 20);
// Active session 2 has declaration_1 (from block 9)
@@ -1198,9 +1204,9 @@ mod tests {
// Jump to block 30 (start of session 3)
for _ in 21..30 {
sdp_ledger = sdp_ledger.try_apply_header(&config).unwrap();
(sdp_ledger, _) = sdp_ledger.try_apply_header(&config).unwrap();
}
sdp_ledger = sdp_ledger.try_apply_header(&config).unwrap();
(sdp_ledger, _) = sdp_ledger.try_apply_header(&config).unwrap();
assert_eq!(sdp_ledger.block_number, 30);
// Active session 3 now has both declarations
ledger/nomos-ledger/src/mantle/sdp/rewards.rs
+214 -78
View File
@@ -1,11 +1,15 @@
use std::collections::HashMap;
use std::collections::{BTreeMap, HashMap};
use groth16::{Fr, fr_from_bytes};
use nomos_core::{
block::BlockNumber,
sdp::{ActivityMetadata, ProviderId, ServiceParameters, SessionNumber},
crypto::{ZkDigest, ZkHasher},
mantle::{Note, TxHash, Utxo},
sdp::{ActivityMetadata, ProviderId, ServiceParameters, ServiceType, SessionNumber},
};
use rpds::{HashTrieMapSync, HashTrieSetSync};
use thiserror::Error;
use zksign::PublicKey;
use super::SessionState;
@@ -44,7 +48,7 @@ pub trait Rewards: Clone + PartialEq + Eq + Send + Sync + std::fmt::Debug {
&self,
last_active: &SessionState,
config: &ServiceParameters,
) -> (Self, HashMap<ProviderId, RewardAmount>);
) -> (Self, Vec<Utxo>);
}
/// No-op rewards implementation that doesn't track or distribute any rewards.
@@ -69,9 +73,9 @@ impl Rewards for NoopRewards {
&self,
_last_active: &SessionState,
_config: &ServiceParameters,
) -> (Self, HashMap<ProviderId, RewardAmount>) {
) -> (Self, Vec<Utxo>) {
// No rewards to distribute
(self.clone(), HashMap::new())
(self.clone(), Vec::new())
}
}
@@ -85,8 +89,8 @@ impl Rewards for NoopRewards {
#[cfg_attr(feature = "serde", derive(serde::Serialize, serde::Deserialize))]
#[derive(Clone, Debug, PartialEq, Eq)]
pub struct DaRewards {
current_opinions: HashTrieMapSync<ProviderId, usize>,
past_opinions: HashTrieMapSync<ProviderId, usize>,
current_opinions: HashTrieMapSync<PublicKey, usize>,
past_opinions: HashTrieMapSync<PublicKey, usize>,
recorded_messages: HashTrieSetSync<ProviderId>, // avoid processing duplicate opinions
// naming as in the spec, current session is s-1 if s is the session at this which this
// message was sent
@@ -184,28 +188,48 @@ impl Rewards for DaRewards {
}
// Process current session opinions
let n_validators_current = self.current_session.declarations.size();
let mut current_provider_to_zk_id = <BTreeMap<_, Vec<_>>>::new();
for declaration in self.current_session.declarations.values() {
current_provider_to_zk_id
.entry(declaration.provider_id)
.or_default()
.push(declaration.zk_id);
}
let current_provider_to_zk_id = current_provider_to_zk_id.values().collect::<Vec<_>>();
let n_validators_current = current_provider_to_zk_id.len();
let current_opinions =
Self::parse_opinions(&proof.current_session_opinions, n_validators_current)?;
let mut new_current_opinions = self.current_opinions.clone();
for (i, &opinion) in current_opinions.iter().enumerate() {
if opinion && let Some(provider) = self.current_session.get_provider_by_index(i) {
let count = new_current_opinions.get(&provider).copied().unwrap_or(0);
new_current_opinions = new_current_opinions.insert(provider, count + 1);
if opinion && let Some(zk_ids) = current_provider_to_zk_id.get(i) {
for zk_id in *zk_ids {
let count = new_current_opinions.get(zk_id).copied().unwrap_or(0);
new_current_opinions = new_current_opinions.insert(*zk_id, count + 1);
}
}
}
// Process previous session opinions
let n_validators_past = self.prev_session.declarations.size();
let mut previous_provider_to_zk_id = <BTreeMap<_, Vec<_>>>::new();
for declaration in self.prev_session.declarations.values() {
previous_provider_to_zk_id
.entry(declaration.provider_id)
.or_default()
.push(declaration.zk_id);
}
let previous_provider_to_zk_id = previous_provider_to_zk_id.values().collect::<Vec<_>>();
let n_validators_prev = previous_provider_to_zk_id.len();
let past_opinions =
Self::parse_opinions(&proof.previous_session_opinions, n_validators_past)?;
Self::parse_opinions(&proof.previous_session_opinions, n_validators_prev)?;
let mut new_past_opinions = self.past_opinions.clone();
for (i, &opinion) in past_opinions.iter().enumerate() {
if opinion && let Some(provider) = self.prev_session.get_provider_by_index(i) {
let count = new_past_opinions.get(&provider).copied().unwrap_or(0);
new_past_opinions = new_past_opinions.insert(provider, count + 1);
if opinion && let Some(zk_ids) = previous_provider_to_zk_id.get(i) {
for zk_id in *zk_ids {
let count = new_past_opinions.get(zk_id).copied().unwrap_or(0);
new_past_opinions = new_past_opinions.insert(*zk_id, count + 1);
}
}
}
@@ -224,7 +248,7 @@ impl Rewards for DaRewards {
&self,
last_active: &SessionState,
_config: &ServiceParameters,
) -> (Self, HashMap<ProviderId, RewardAmount>) {
) -> (Self, Vec<Utxo>) {
// Calculate activity threshold: θ = Ns / ACTIVITY_THRESHOLD
let active_threshold = self.current_session.declarations.size() as u64 / ACTIVITY_THRESHOLD;
let past_threshold = self.prev_session.declarations.size() as u64 / ACTIVITY_THRESHOLD;
@@ -248,18 +272,18 @@ impl Rewards for DaRewards {
let mut rewards = HashMap::new();
// Distribute rewards for current session
for (provider_id, &opinion_count) in self.current_opinions.iter() {
for (zk_id, &opinion_count) in self.current_opinions.iter() {
if (opinion_count as u64) >= active_threshold {
let reward = active_base_reward / 2; // half reward
*rewards.entry(*provider_id).or_insert(0) += reward;
*rewards.entry(*zk_id).or_insert(0) += reward;
}
}
// Distribute rewards for previous session
for (provider_id, &opinion_count) in self.past_opinions.iter() {
for (zk_id, &opinion_count) in self.past_opinions.iter() {
if (opinion_count as u64) >= past_threshold {
let reward = past_base_reward / 2; // half reward
*rewards.entry(*provider_id).or_insert(0) += reward;
*rewards.entry(*zk_id).or_insert(0) += reward;
}
}
@@ -272,7 +296,14 @@ impl Rewards for DaRewards {
prev_session: self.current_session.clone(),
};
(new_state, rewards)
(
new_state,
distribute_rewards(
rewards,
last_active.session_n,
ServiceType::DataAvailability,
),
)
}
}
@@ -294,11 +325,54 @@ pub enum Error {
InvalidProofType,
}
/// Creates a deterministic transaction hash for reward distribution.
///
/// The hash is computed from a version constant, session number, and service
/// type, ensuring all nodes produce identical transaction hashes for reward
/// notes.
fn create_reward_tx_hash(session_n: SessionNumber, service_type: ServiceType) -> TxHash {
let mut hasher = ZkHasher::default();
let session_fr = Fr::from(session_n);
let service_type_fr = fr_from_bytes(service_type.as_ref().as_bytes())
.expect("Valid service type fr representation");
<ZkHasher as ZkDigest>::update(&mut hasher, &service_type_fr);
<ZkHasher as ZkDigest>::update(&mut hasher, &session_fr);
TxHash(hasher.finalize())
}
/// Distributes rewards as UTXOs, sorted by `zk_id` for determinism.
///
/// Creates reward notes that are:
/// - Deterministic: Sorted by `zk_id` in ascending order
/// - One note per `zk_id`
/// - Filters out 0-value rewards
fn distribute_rewards(
rewards: HashMap<PublicKey, RewardAmount>,
session_n: SessionNumber,
service_type: ServiceType,
) -> Vec<Utxo> {
let mut sorted_rewards: Vec<(PublicKey, RewardAmount)> = rewards
.into_iter()
.filter(|(_, amount)| *amount > 0)
.collect();
sorted_rewards.sort_by_key(|(zk_id, _)| *zk_id);
let tx_hash = create_reward_tx_hash(session_n, service_type);
sorted_rewards
.into_iter()
.enumerate()
.map(|(output_index, (zk_id, reward_amount))| {
Utxo::new(tx_hash, output_index, Note::new(reward_amount, zk_id))
})
.collect()
}
#[cfg(test)]
mod tests {
use nomos_core::sdp::{DaActivityProof, Declaration, DeclarationId};
use num_bigint::BigUint;
use zksign::PublicKey;
use super::*;
@@ -309,9 +383,9 @@ mod tests {
let mut declarations = rpds::RedBlackTreeMapSync::new_sync();
for (i, provider_id) in provider_ids.iter().enumerate() {
let declaration = Declaration {
service_type: nomos_core::sdp::ServiceType::DataAvailability,
service_type: ServiceType::DataAvailability,
provider_id: *provider_id,
locked_note_id: groth16::Fr::from(i as u64).into(),
locked_note_id: Fr::from(i as u64).into(),
locators: vec![],
zk_id: PublicKey::new(BigUint::from(i as u64).into()),
created: 0,
@@ -327,7 +401,7 @@ mod tests {
}
}
fn create_provider_id(byte: u8) -> ProviderId {
pub fn create_provider_id(byte: u8) -> ProviderId {
use ed25519_dalek::SigningKey;
let key_bytes = [byte; 32];
// Ensure the key is valid by using SigningKey
@@ -390,33 +464,6 @@ mod tests {
assert!(!DaRewards::get_opinion_bit(&opinions, 100));
}
#[test]
fn test_get_provider_by_index() {
let provider1 = create_provider_id(1);
let provider2 = create_provider_id(2);
let provider3 = create_provider_id(3);
let session = create_test_session_state(&[provider2, provider1, provider3], 0);
// Test that we can get providers by index
let p0 = session.get_provider_by_index(0);
let p1 = session.get_provider_by_index(1);
let p2 = session.get_provider_by_index(2);
// All three should exist
assert!(p0.is_some());
assert!(p1.is_some());
assert!(p2.is_some());
// They should all be different
assert_ne!(p0, p1);
assert_ne!(p1, p2);
assert_ne!(p0, p2);
// Out of bounds should return None
assert!(session.get_provider_by_index(3).is_none());
}
#[test]
fn test_rewards_with_no_activity_proofs() {
let provider1 = create_provider_id(1);
@@ -452,8 +499,9 @@ mod tests {
}
#[test]
#[ignore = "TODO: Re-enable when session_income is implemented (currently hardcoded to 0)"]
fn test_rewards_basic_calculation() {
// Create 4 providers
// Create 4 providers with different zk_ids
let provider1 = create_provider_id(1);
let provider2 = create_provider_id(2);
let provider3 = create_provider_id(3);
@@ -515,22 +563,51 @@ mod tests {
session_duration: 10,
};
let (_new_state, rewards) = rewards_tracker.update_session(&active_session, &config);
let (_new_state, reward_utxos) = rewards_tracker.update_session(&active_session, &config);
// Activity threshold = 4 / 2 = 2
// NOTE: session_income is currently hardcoded to 0, so all rewards will be 0
// When session_income is added to config, this test should verify:
// Base reward = session_income / 4
// Half reward = base_reward / 2
// All providers should get rewards as they all have >= 2 opinions
// Calculate expected rewards dynamically (works for any session_income)
let session_income = 0; // Currently hardcoded in implementation
let _active_threshold = providers.len() as u64 / ACTIVITY_THRESHOLD; // 4 / 2 = 2
let base_reward = if providers.is_empty() {
0
} else {
session_income / providers.len() as u64
};
let half_reward = base_reward / 2;
// For now, verify that all rewards are 0 (since session_income = 0)
assert_eq!(rewards.len(), 4);
assert!(rewards.values().all(|&r| r == 0));
assert_eq!(rewards.values().sum::<u64>(), 0);
// Opinion counts: provider0=3, provider1=2, provider2=3, provider3=2
// All meet threshold of 2, so all 4 should get rewards
assert_eq!(
reward_utxos.len(),
4,
"All 4 providers should receive rewards"
);
// Verify each UTXO has expected structure
for utxo in &reward_utxos {
assert_eq!(
utxo.note.value, half_reward,
"Reward amount should match calculation"
);
// UTXOs should be sorted by zk_id and have sequential output
// indices
}
// Verify total rewards distributed
let total_rewards: u64 = reward_utxos.iter().map(|u| u.note.value).sum();
assert_eq!(total_rewards, half_reward * 4);
// Verify UTXOs are sorted by zk_id (deterministic ordering)
for i in 1..reward_utxos.len() {
assert!(
reward_utxos[i - 1].note.pk <= reward_utxos[i].note.pk,
"UTXOs should be sorted by zk_id"
);
}
}
#[test]
#[ignore = "TODO: Re-enable when session_income is implemented (currently hardcoded to 0)"]
fn test_rewards_with_previous_session() {
let provider1 = create_provider_id(1);
let provider2 = create_provider_id(2);
@@ -539,13 +616,22 @@ mod tests {
let current_session = create_test_session_state(&[provider1, provider2], 1);
let prev_session = create_test_session_state(&[provider1], 0);
// Extract zk_ids for verification
let current_zk_ids: Vec<PublicKey> = current_session
.declarations
.values()
.map(|d| d.zk_id)
.collect();
let provider1_zk_id = current_zk_ids[0];
let provider2_zk_id = current_zk_ids[1];
// Initialize rewards tracker with both sessions
let mut rewards_tracker = DaRewards {
current_opinions: HashTrieMapSync::new_sync(),
past_opinions: HashTrieMapSync::new_sync(),
recorded_messages: HashTrieSetSync::new_sync(),
current_session: current_session.clone(),
prev_session,
prev_session: prev_session.clone(),
};
// Provider 1 submits opinions for current session
@@ -576,19 +662,69 @@ mod tests {
session_duration: 10,
};
let (_new_state, rewards) = rewards_tracker.update_session(&current_session, &config);
let (_new_state, reward_utxos) = rewards_tracker.update_session(&current_session, &config);
// NOTE: session_income is currently hardcoded to 0, so all rewards will be 0
// When session_income is added to config, this test should verify:
// - Both providers get rewards for current session (2 opinions >= threshold 1)
// - Provider 1 also gets rewards for previous session (2 opinions >= threshold
// 0)
// - Provider 1 gets more total rewards (from both sessions)
// Calculate expected rewards dynamically
let session_income = 0; // Currently hardcoded
let _current_threshold = current_session.declarations.size() as u64 / ACTIVITY_THRESHOLD; // 2/2 = 1
let _prev_threshold = prev_session.declarations.size() as u64 / ACTIVITY_THRESHOLD; // 1/2 = 0
// For now, verify that both providers are tracked with 0 rewards
assert!(rewards.contains_key(&provider1));
assert!(rewards.contains_key(&provider2));
assert_eq!(*rewards.get(&provider1).unwrap(), 0);
assert_eq!(*rewards.get(&provider2).unwrap(), 0);
let current_base_reward = if current_session.declarations.is_empty() {
0
} else {
session_income / current_session.declarations.size() as u64
};
let prev_base_reward = if prev_session.declarations.is_empty() {
0
} else {
session_income / prev_session.declarations.size() as u64
};
// Both providers get rewards for current session (both have 2 opinions >=
// threshold 1) Provider 1 also gets rewards for previous session (2
// opinions >= threshold 0) So provider1 gets current_half + prev_half,
// provider2 gets current_half
let current_half = current_base_reward / 2;
let prev_half = prev_base_reward / 2;
// Both providers should be in rewards (both met threshold in current session)
assert_eq!(
reward_utxos.len(),
2,
"Both providers should receive rewards"
);
// Find rewards by zk_id
let provider1_utxo = reward_utxos
.iter()
.find(|u| u.note.pk == provider1_zk_id)
.expect("Provider1 should have reward UTXO");
let provider2_utxo = reward_utxos
.iter()
.find(|u| u.note.pk == provider2_zk_id)
.expect("Provider2 should have reward UTXO");
// Verify amounts (provider1 gets from both sessions, provider2 only from
// current)
let expected_provider1_reward = current_half + prev_half;
let expected_provider2_reward = current_half;
assert_eq!(
provider1_utxo.note.value, expected_provider1_reward,
"Provider1 should get rewards from both sessions"
);
assert_eq!(
provider2_utxo.note.value, expected_provider2_reward,
"Provider2 should get rewards from current session only"
);
// When session_income > 0, provider1 should have more rewards
// For now with income=0, both are 0
if session_income > 0 {
assert!(
provider1_utxo.note.value > provider2_utxo.note.value,
"Provider1 should have more total rewards"
);
}
}
}