fix(compression): improve robustness on startup and shutdown

crates/fuel-core/src/service/adapters/compression_adapters.rs

@@ -1,22 +1,69 @@
 use crate::{
     database::{
-        database_description::compression::CompressionDatabase,
+        database_description::{
+            compression::CompressionDatabase,
+            on_chain::OnChain,
+        },
         Database,
     },
     service::adapters::BlockImporterAdapter,
 };
 use fuel_core_compression_service::{
     config,
     ports::{
-        block_source,
+        block_source::{
+            self,
+            BlockAt,
+        },
+        canonical_height,
+        compression_storage,
         configuration,
     },
 };
+use fuel_core_storage::transactional::HistoricalView;
 use fuel_core_types::services::block_importer::SharedImportResult;
 
-impl block_source::BlockSource for BlockImporterAdapter {
+use super::import_result_provider::{
+    self,
+    ImportResultProvider,
+};
+
+/// Provides the necessary functionality for accessing latest and historical block data.
+pub struct CompressionBlockImporterAdapter {
+    block_importer: BlockImporterAdapter,
+    import_result_provider_adapter: ImportResultProvider,
+}
+
+impl CompressionBlockImporterAdapter {
+    pub fn new(
+        block_importer: BlockImporterAdapter,
+        import_result_provider_adapter: ImportResultProvider,
+    ) -> Self {
+        Self {
+            block_importer,
+            import_result_provider_adapter,
+        }
+    }
+}
+
+impl From<BlockAt> for import_result_provider::BlockAt {
+    fn from(value: BlockAt) -> Self {
+        match value {
+            BlockAt::Genesis => Self::Genesis,
+            BlockAt::Specific(h) => Self::Specific(h.into()),
+        }
+    }
+}
+
+impl block_source::BlockSource for CompressionBlockImporterAdapter {
     fn subscribe(&self) -> fuel_core_services::stream::BoxStream<SharedImportResult> {
-        self.events_shared_result()
+        self.block_importer.events_shared_result()
+    }
+
+    fn get_block(&self, height: BlockAt) -> Option<SharedImportResult> {
+        self.import_result_provider_adapter
+            .result_at_height(height.into())
+            .ok()
     }
 }
 
@@ -28,6 +75,18 @@ impl configuration::CompressionConfigProvider
     }
 }
 
+impl compression_storage::LatestHeight for Database<CompressionDatabase> {
+    fn latest_height(&self) -> Option<u32> {
+        HistoricalView::latest_height(self).map(Into::into)
+    }
+}
+
+impl canonical_height::CanonicalHeight for Database<OnChain> {
+    fn get(&self) -> Option<u32> {
+        HistoricalView::latest_height(self).map(Into::into)
+    }
+}
+
 pub struct CompressionServiceAdapter {
     db: Database<CompressionDatabase>,
 }

crates/fuel-core/src/service/adapters/graphql_api.rs

@@ -1,5 +1,6 @@
 use super::{
     compression_adapters::CompressionServiceAdapter,
+    import_result_provider,
     BlockImporterAdapter,
     BlockProducerAdapter,
     ChainStateInfoProvider,
@@ -248,6 +249,15 @@ impl GraphQLBlockImporter {
     }
 }
 
+impl From<BlockAt> for import_result_provider::BlockAt {
+    fn from(value: BlockAt) -> Self {
+        match value {
+            BlockAt::Genesis => Self::Genesis,
+            BlockAt::Specific(h) => Self::Specific(h),
+        }
+    }
+}
+
 impl worker::BlockImporter for GraphQLBlockImporter {
     fn block_events(&self) -> BoxStream<SharedImportResult> {
         self.block_importer_adapter.events_shared_result()
@@ -257,7 +267,8 @@ impl worker::BlockImporter for GraphQLBlockImporter {
         &self,
         height: BlockAt,
     ) -> anyhow::Result<SharedImportResult> {
-        self.import_result_provider_adapter.result_at_height(height)
+        self.import_result_provider_adapter
+            .result_at_height(height.into())
     }
 }
 

crates/fuel-core/src/service/adapters/import_result_provider.rs

@@ -1,19 +1,21 @@
 use crate::{
     database::Database,
-    fuel_core_graphql_api::ports::worker::BlockAt,
     service::adapters::ExecutorAdapter,
 };
 use fuel_core_importer::ports::Validator;
 use fuel_core_storage::{
     not_found,
     transactional::AtomicView,
 };
-use fuel_core_types::services::{
-    block_importer::{
-        ImportResult,
-        SharedImportResult,
+use fuel_core_types::{
+    fuel_types::BlockHeight,
+    services::{
+        block_importer::{
+            ImportResult,
+            SharedImportResult,
+        },
+        executor::ValidationResult,
     },
-    executor::ValidationResult,
 };
 use std::sync::Arc;
 
@@ -32,6 +34,15 @@ impl ImportResultProvider {
     }
 }
 
+/// Represents either the Genesis Block or a block at a specific height
+#[derive(Copy, Clone, Debug, PartialEq, Eq, Hash, Ord, PartialOrd)]
+pub enum BlockAt {
+    /// Block at a specific height
+    Specific(BlockHeight),
+    /// Genesis block
+    Genesis,
+}
+
 impl ImportResultProvider {
     pub fn result_at_height(
         &self,

crates/fuel-core/src/service/sub_services.rs

@@ -37,7 +37,10 @@ use crate::service::adapters::consensus_module::poa::pre_confirmation_signature:
 
 use super::{
     adapters::{
-        compression_adapters::CompressionServiceAdapter,
+        compression_adapters::{
+            CompressionBlockImporterAdapter,
+            CompressionServiceAdapter,
+        },
         FuelBlockSigner,
         P2PAdapter,
         TxStatusManagerAdapter,
@@ -398,13 +401,19 @@ pub fn init_sub_services(
     let compression_service_adapter =
         CompressionServiceAdapter::new(database.compression().clone());
 
+    let compression_importer_adapter = CompressionBlockImporterAdapter::new(
+        importer_adapter.clone(),
+        import_result_provider.clone(),
+    );
+
     let compression_service = match &config.da_compression {
         DaCompressionMode::Disabled => None,
         DaCompressionMode::Enabled(cfg) => Some(
             new_compression_service(
-                importer_adapter.clone(),
+                compression_importer_adapter,
                 database.compression().clone(),
                 cfg.clone(),
+                database.on_chain().clone(),
             )
             .map_err(|e| anyhow::anyhow!(e))?,
         ),

crates/services/compression/src/ports.rs

@@ -6,3 +6,6 @@ pub mod compression_storage;
 
 /// Configuration port
 pub mod configuration;
+
+/// Canonical height port
+pub mod canonical_height;

crates/services/compression/src/ports/block_source.rs

@@ -9,6 +9,8 @@ pub(crate) trait BlockWithMetadataExt {
     fn block(&self) -> &fuel_core_types::blockchain::block::Block;
     #[cfg(test)]
     fn default() -> Self;
+    #[cfg(test)]
+    fn test_block_with_height(height: BlockHeight) -> Self;
 }
 
 impl BlockWithMetadataExt for BlockWithMetadata {
@@ -30,13 +32,46 @@ impl BlockWithMetadataExt for BlockWithMetadata {
 
         std::sync::Arc::new(ImportResult::default().wrap())
     }
+
+    #[cfg(test)]
+    fn test_block_with_height(height: BlockHeight) -> Self {
+        use fuel_core_types::services::block_importer::ImportResult;
+
+        let mut import_result = ImportResult::default();
+        import_result
+            .sealed_block
+            .entity
+            .header_mut()
+            .set_block_height(height.into());
+        std::sync::Arc::new(import_result.wrap())
+    }
 }
 
 /// Type alias for returned value by .subscribe() method on `BlockSource`
 pub type BlockStream = BoxStream<BlockWithMetadata>;
 
+/// Represents either the Genesis Block or a block at a specific height
+#[derive(Copy, Clone, Debug, PartialEq, Eq, Hash, Ord, PartialOrd)]
+pub enum BlockAt {
+    /// Block at a specific height
+    Specific(BlockHeight),
+    /// Genesis block
+    Genesis,
+}
+
+impl PartialEq<BlockHeight> for BlockAt {
+    fn eq(&self, other: &BlockHeight) -> bool {
+        match self {
+            Self::Genesis => 0 == *other,
+            Self::Specific(h) => h == other,
+        }
+    }
+}
+
 /// Port for L2 blocks source
-pub trait BlockSource {
+pub trait BlockSource: Send + Sync {
     /// Should provide a stream of blocks with metadata
     fn subscribe(&self) -> BlockStream;
+    /// Should provide the block at a given height
+    fn get_block(&self, height: BlockAt) -> Option<BlockWithMetadata>;
 }

crates/services/compression/src/ports/canonical_height.rs

@@ -0,0 +1,8 @@
+use super::block_source::BlockHeight;
+
+/// Canonical height port
+/// Should provide the canonical height of the blockchain.
+pub trait CanonicalHeight: Send + Sync {
+    /// Returns the canonical height of the blockchain.
+    fn get(&self) -> Option<BlockHeight>;
+}

crates/services/compression/src/ports/compression_storage.rs

@@ -12,16 +12,26 @@ use fuel_core_storage::{
 /// Compressed block type alias
 pub type CompressedBlock = fuel_core_compression::VersionedCompressedBlock;
 
+/// Trait for getting the latest height of the compression storage
+pub trait LatestHeight {
+    /// Get the latest height of the compression storage
+    fn latest_height(&self) -> Option<u32>;
+}
+
 /// Trait for interacting with storage that supports compression
 pub trait CompressionStorage:
     KeyValueInspect<Column = MerkleizedColumn<storage::column::CompressionColumn>>
     + Modifiable
+    + Send
+    + Sync
 {
 }
 
 impl<T> CompressionStorage for T where
     T: KeyValueInspect<Column = MerkleizedColumn<storage::column::CompressionColumn>>
         + Modifiable
+        + Send
+        + Sync
 {
 }
 

crates/services/compression/src/ports/configuration.rs

@@ -1,7 +1,7 @@
 use crate::config::CompressionConfig;
 
 /// Configuration for the compression service
-pub trait CompressionConfigProvider {
+pub trait CompressionConfigProvider: Send + Sync {
     /// getter for the compression config
     fn config(&self) -> CompressionConfig;
 }