feat(starknet_l1_provider): add start_block

- replace preivous API with the agreed upon `start_block`.
- added state setter for use of start_block; commit_block will have a
  different setter.

crates/starknet_l1_provider/Cargo.toml

@@ -24,6 +24,7 @@ validator.workspace = true
 
 [dev-dependencies]
 assert_matches.workspace = true
+itertools.workspace = true
 pretty_assertions.workspace = true
 starknet_api = { workspace = true, features = ["testing"] }
 

crates/starknet_l1_provider/src/l1_provider.rs

@@ -2,7 +2,7 @@ use starknet_api::block::BlockNumber;
 use starknet_api::executable_transaction::L1HandlerTransaction;
 use starknet_api::transaction::TransactionHash;
 use starknet_l1_provider_types::errors::L1ProviderError;
-use starknet_l1_provider_types::{Event, L1ProviderResult, ValidationStatus};
+use starknet_l1_provider_types::{Event, L1ProviderResult, SessionState, ValidationStatus};
 use starknet_sequencer_infra::component_definitions::ComponentStarter;
 
 use crate::transaction_manager::TransactionManager;
@@ -23,6 +23,17 @@ impl L1Provider {
         todo!("Init crawler in uninitialized_state from config, to initialize call `reset`.");
     }
 
+    pub fn start_block(
+        &mut self,
+        height: BlockNumber,
+        state: SessionState,
+    ) -> L1ProviderResult<()> {
+        self.validate_height(height)?;
+        self.state = state.into();
+        self.tx_manager.start_block();
+        Ok(())
+    }
+
     /// Retrieves up to `n_txs` transactions that have yet to be proposed or accepted on L2.
     pub fn get_txs(
         &mut self,
@@ -65,22 +76,10 @@ impl L1Provider {
         )
     }
 
-    pub fn validation_start(&mut self, height: BlockNumber) -> L1ProviderResult<()> {
-        self.validate_height(height)?;
-        self.state = self.state.transition_to_validate()?;
-        Ok(())
-    }
-
     pub fn process_l1_events(&mut self, _events: Vec<Event>) -> L1ProviderResult<()> {
         todo!()
     }
 
-    pub fn proposal_start(&mut self, height: BlockNumber) -> L1ProviderResult<()> {
-        self.validate_height(height)?;
-        self.state = self.state.transition_to_propose()?;
-        Ok(())
-    }
-
     /// Simple recovery from L1 and L2 reorgs by reseting the service, which rewinds L1 and L2
     /// information.
     pub async fn handle_reorg(&mut self) -> L1ProviderResult<()> {

crates/starknet_l1_provider/src/l1_provider_tests.rs

@@ -1,15 +1,21 @@
 use assert_matches::assert_matches;
+use itertools::Itertools;
 use pretty_assertions::assert_eq;
 use starknet_api::block::BlockNumber;
 use starknet_api::test_utils::l1_handler::executable_l1_handler_tx;
 use starknet_api::transaction::TransactionHash;
 use starknet_api::{l1_handler_tx_args, tx_hash};
 use starknet_l1_provider_types::errors::L1ProviderError;
+use starknet_l1_provider_types::SessionState::{
+    self,
+    Propose as ProposeSession,
+    Validate as ValidateSession,
+};
 use starknet_l1_provider_types::ValidationStatus;
 
 use crate::l1_provider::L1Provider;
 use crate::test_utils::L1ProviderContentBuilder;
-use crate::ProviderState::{Pending, Propose, Uninitialized, Validate};
+use crate::ProviderState;
 
 macro_rules! tx {
     (tx_hash: $tx_hash:expr) => {{
@@ -27,7 +33,7 @@ fn get_txs_happy_flow() {
     let txs = [tx!(tx_hash: 0), tx!(tx_hash: 1), tx!(tx_hash: 2)];
     let mut l1_provider = L1ProviderContentBuilder::new()
         .with_txs(txs.clone())
-        .with_state(Propose)
+        .with_state(ProviderState::Propose)
         .build_into_l1_provider();
 
     // Test.
@@ -43,7 +49,7 @@ fn validate_happy_flow() {
     let mut l1_provider = L1ProviderContentBuilder::new()
         .with_txs([tx!(tx_hash: 1)])
         .with_committed([tx_hash!(2)])
-        .with_state(Validate)
+        .with_state(ProviderState::Validate)
         .build_into_l1_provider();
 
     // Test.
@@ -70,7 +76,7 @@ fn validate_happy_flow() {
 fn pending_state_errors() {
     // Setup.
     let mut l1_provider = L1ProviderContentBuilder::new()
-        .with_state(Pending)
+        .with_state(ProviderState::Pending)
         .with_txs([tx!(tx_hash: 1)])
         .build_into_l1_provider();
 
@@ -90,7 +96,7 @@ fn pending_state_errors() {
 #[should_panic(expected = "Uninitialized L1 provider")]
 fn uninitialized_get_txs() {
     let mut uninitialized_l1_provider = L1Provider::default();
-    assert_eq!(uninitialized_l1_provider.state, Uninitialized);
+    assert_eq!(uninitialized_l1_provider.state, ProviderState::Uninitialized);
 
     uninitialized_l1_provider.get_txs(1, BlockNumber(1)).unwrap();
 }
@@ -99,44 +105,21 @@ fn uninitialized_get_txs() {
 #[should_panic(expected = "Uninitialized L1 provider")]
 fn uninitialized_validate() {
     let mut uninitialized_l1_provider = L1Provider::default();
-    assert_eq!(uninitialized_l1_provider.state, Uninitialized);
+    assert_eq!(uninitialized_l1_provider.state, ProviderState::Uninitialized);
 
     uninitialized_l1_provider.validate(TransactionHash::default(), BlockNumber(1)).unwrap();
 }
 
 #[test]
-fn proposal_start_errors() {
+fn proposal_start_multiple_proposals_same_height() {
     // Setup.
     let mut l1_provider =
-        L1ProviderContentBuilder::new().with_state(Pending).build_into_l1_provider();
-    // Test.
-    l1_provider.proposal_start(BlockNumber(1)).unwrap();
-
-    assert_eq!(
-        l1_provider.proposal_start(BlockNumber(1)).unwrap_err(),
-        L1ProviderError::unexpected_transition(Propose, Propose)
-    );
-    assert_eq!(
-        l1_provider.validation_start(BlockNumber(1)).unwrap_err(),
-        L1ProviderError::unexpected_transition(Propose, Validate)
-    );
-}
-
-#[test]
-fn validation_start_errors() {
-    // Setup.
-    let mut l1_provider =
-        L1ProviderContentBuilder::new().with_state(Pending).build_into_l1_provider();
-
-    // Test.
-    l1_provider.validation_start(BlockNumber(1)).unwrap();
-
-    assert_eq!(
-        l1_provider.validation_start(BlockNumber(1)).unwrap_err(),
-        L1ProviderError::unexpected_transition(Validate, Validate)
-    );
-    assert_eq!(
-        l1_provider.proposal_start(BlockNumber(1)).unwrap_err(),
-        L1ProviderError::unexpected_transition(Validate, Propose)
-    );
+        L1ProviderContentBuilder::new().with_state(ProviderState::Pending).build_into_l1_provider();
+
+    // Test all single-height combinations.
+    const SESSION_TYPES: [SessionState; 2] = [ProposeSession, ValidateSession];
+    for (session_1, session_2) in SESSION_TYPES.into_iter().cartesian_product(SESSION_TYPES) {
+        l1_provider.start_block(BlockNumber(1), session_1).unwrap();
+        l1_provider.start_block(BlockNumber(1), session_2).unwrap();
+    }
 }

crates/starknet_l1_provider/src/lib.rs

@@ -23,8 +23,7 @@ use papyrus_config::converters::deserialize_milliseconds_to_duration;
 use papyrus_config::dumping::{ser_param, SerializeConfig};
 use papyrus_config::{ParamPath, ParamPrivacyInput, SerializedParam};
 use serde::{Deserialize, Serialize};
-use starknet_l1_provider_types::errors::L1ProviderError;
-use starknet_l1_provider_types::L1ProviderResult;
+use starknet_l1_provider_types::SessionState;
 use validator::Validate;
 
 #[cfg(test)]
@@ -42,24 +41,6 @@ pub enum ProviderState {
 }
 
 impl ProviderState {
-    fn transition_to_propose(self) -> L1ProviderResult<Self> {
-        match self {
-            ProviderState::Pending => Ok(ProviderState::Propose),
-            _ => Err(L1ProviderError::unexpected_transition(self, ProviderState::Propose)),
-        }
-    }
-
-    fn transition_to_validate(self) -> L1ProviderResult<Self> {
-        match self {
-            ProviderState::Pending => Ok(ProviderState::Validate),
-            _ => Err(L1ProviderError::unexpected_transition(self, ProviderState::Validate)),
-        }
-    }
-
-    fn _transition_to_pending(self) -> L1ProviderResult<Self> {
-        todo!()
-    }
-
     pub fn as_str(&self) -> &str {
         match self {
             ProviderState::Pending => "Pending",
@@ -70,6 +51,15 @@ impl ProviderState {
     }
 }
 
+impl From<SessionState> for ProviderState {
+    fn from(state: SessionState) -> Self {
+        match state {
+            SessionState::Propose => ProviderState::Propose,
+            SessionState::Validate => ProviderState::Validate,
+        }
+    }
+}
+
 impl std::fmt::Display for ProviderState {
     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
         f.write_str(self.as_str())

crates/starknet_l1_provider/src/soft_delete_index_map.rs

@@ -69,7 +69,7 @@ impl SoftDeleteIndexMap {
     // every new tx is inserted to the map with key counter++ and the counter is not reduced
     // when removing entries. Once the counter reaches u32::MAX/2 we recreate the DS in Theta(n).
     pub fn _commit(&mut self, tx_hashes: &[TransactionHash]) -> Vec<L1HandlerTransaction> {
-        self._rollback_staging();
+        self.rollback_staging();
         let tx_hashes: HashSet<_> = tx_hashes.iter().copied().collect();
         if tx_hashes.is_empty() {
             return Vec::new();
@@ -84,7 +84,7 @@ impl SoftDeleteIndexMap {
     }
 
     /// Rolls back all staged transactions, converting them to unstaged.
-    pub fn _rollback_staging(&mut self) {
+    pub fn rollback_staging(&mut self) {
         for tx_hash in self.staged_txs.drain() {
             self.txs.entry(tx_hash).and_modify(|entry| entry.set_state(TxState::Unstaged));
         }

crates/starknet_l1_provider/src/transaction_manager.rs

@@ -12,6 +12,10 @@ pub struct TransactionManager {
 }
 
 impl TransactionManager {
+    pub fn start_block(&mut self) {
+        self.txs.rollback_staging();
+    }
+
     pub fn get_txs(&mut self, n_txs: usize) -> Vec<L1HandlerTransaction> {
         let mut txs = Vec::with_capacity(n_txs);
 

crates/starknet_l1_provider_types/src/lib.rs

@@ -108,3 +108,9 @@ pub enum Event {
     TransactionCancellationStarted(L1Event),
     TransactionConsumed(L1Event),
 }
+
+#[derive(Clone, Debug, Serialize, Deserialize, PartialEq, Eq)]
+pub enum SessionState {
+    Propose,
+    Validate,
+}