arkhe-origin-chain/crates/origin-chain-node/src/service.rs

//! Origin Chain node service (Slice 4 Paso 4c).
//!
//! Verbatim del solochain-template `polkadot-stable2509-3`
//! (`templates/solochain/node/src/service.rs`), con un único cambio: el import
//! del runtime apunta a `origin_chain_runtime`. Aura (block production) + Grandpa
//! (finality) + JSON-RPC + libp2p networking + telemetry.

use futures::FutureExt;
use sc_client_api::{Backend, BlockBackend};
use sc_consensus_aura::{ImportQueueParams, SlotProportion, StartAuraParams};
use sc_consensus_grandpa::SharedVoterState;
use sc_service::{error::Error as ServiceError, Configuration, TaskManager, WarpSyncConfig};
use sc_telemetry::{Telemetry, TelemetryWorker};
use sc_transaction_pool_api::OffchainTransactionPoolFactory;
// El node trabaja sobre `opaque::Block`: los extrinsics son bytes y sólo el WASM los
// decodifica. Con el `Block` completo del runtime (hasta el 2026-10-28) el node decodificaba
// con sus tipos nativos y rechazaba toda llamada que un `set_code` hubiera añadido (ver
// `origin_chain_runtime::opaque`). Las runtime APIs que genera `impl_runtime_apis!` son
// genéricas en el bloque y cruzan la frontera en SCALE, así que valen igual sobre éste.
use origin_chain_runtime::{opaque::Block, RuntimeApi};
use sp_consensus_aura::sr25519::AuthorityPair as AuraPair;
use std::{sync::Arc, time::Duration};

pub(crate) type FullClient = sc_service::TFullClient<
    Block,
    RuntimeApi,
    sc_executor::WasmExecutor<sp_io::SubstrateHostFunctions>,
>;
type FullBackend = sc_service::TFullBackend<Block>;
type FullSelectChain = sc_consensus::LongestChain<FullBackend, Block>;

/// Periodo mínimo de bloques sobre los que se importan/generan justifications.
const GRANDPA_JUSTIFICATION_PERIOD: u32 = 512;

pub type Service = sc_service::PartialComponents<
    FullClient,
    FullBackend,
    FullSelectChain,
    sc_consensus::DefaultImportQueue<Block>,
    sc_transaction_pool::TransactionPoolHandle<Block, FullClient>,
    (
        sc_consensus_grandpa::GrandpaBlockImport<FullBackend, Block, FullClient, FullSelectChain>,
        sc_consensus_grandpa::LinkHalf<Block, FullClient, FullSelectChain>,
        Option<Telemetry>,
    ),
>;

pub fn new_partial(config: &Configuration) -> Result<Service, ServiceError> {
    let telemetry = config
        .telemetry_endpoints
        .clone()
        .filter(|x| !x.is_empty())
        .map(|endpoints| -> Result<_, sc_telemetry::Error> {
            let worker = TelemetryWorker::new(16)?;
            let telemetry = worker.handle().new_telemetry(endpoints);
            Ok((worker, telemetry))
        })
        .transpose()?;

    let executor = sc_service::new_wasm_executor::<sp_io::SubstrateHostFunctions>(&config.executor);
    let (client, backend, keystore_container, task_manager) =
        sc_service::new_full_parts::<Block, RuntimeApi, _>(
            config,
            telemetry.as_ref().map(|(_, telemetry)| telemetry.handle()),
            executor,
        )?;
    let client = Arc::new(client);

    let telemetry = telemetry.map(|(worker, telemetry)| {
        task_manager
            .spawn_handle()
            .spawn("telemetry", None, worker.run());
        telemetry
    });

    let select_chain = sc_consensus::LongestChain::new(backend.clone());

    let transaction_pool = Arc::from(
        sc_transaction_pool::Builder::new(
            task_manager.spawn_essential_handle(),
            client.clone(),
            config.role.is_authority().into(),
        )
        .with_options(config.transaction_pool.clone())
        .with_prometheus(config.prometheus_registry())
        .build(),
    );

    let (grandpa_block_import, grandpa_link) = sc_consensus_grandpa::block_import(
        client.clone(),
        GRANDPA_JUSTIFICATION_PERIOD,
        &client,
        select_chain.clone(),
        telemetry.as_ref().map(|x| x.handle()),
    )?;

    let cidp_client = client.clone();
    let import_queue = sc_consensus_aura::import_queue::<AuraPair, _, _, _, _, _>(
        ImportQueueParams {
            block_import: grandpa_block_import.clone(),
            justification_import: Some(Box::new(grandpa_block_import.clone())),
            client: client.clone(),
            create_inherent_data_providers: move |parent_hash, _| {
                let cidp_client = cidp_client.clone();
                async move {
                    let slot_duration = sc_consensus_aura::standalone::slot_duration_at(
                        &*cidp_client,
                        parent_hash,
                    )?;
                    let timestamp = sp_timestamp::InherentDataProvider::from_system_time();

                    let slot =
                        sp_consensus_aura::inherents::InherentDataProvider::from_timestamp_and_slot_duration(
                            *timestamp,
                            slot_duration,
                        );

                    Ok((slot, timestamp))
                }
            },
            spawner: &task_manager.spawn_essential_handle(),
            registry: config.prometheus_registry(),
            check_for_equivocation: Default::default(),
            telemetry: telemetry.as_ref().map(|x| x.handle()),
            compatibility_mode: Default::default(),
        },
    )?;

    Ok(sc_service::PartialComponents {
        client,
        backend,
        task_manager,
        import_queue,
        keystore_container,
        select_chain,
        transaction_pool,
        other: (grandpa_block_import, grandpa_link, telemetry),
    })
}

/// Construye un nuevo service para un full client.
pub fn new_full<
    N: sc_network::NetworkBackend<Block, <Block as sp_runtime::traits::Block>::Hash>,
>(
    config: Configuration,
) -> Result<TaskManager, ServiceError> {
    let sc_service::PartialComponents {
        client,
        backend,
        mut task_manager,
        import_queue,
        keystore_container,
        select_chain,
        transaction_pool,
        other: (block_import, grandpa_link, mut telemetry),
    } = new_partial(&config)?;

    let mut net_config = sc_network::config::FullNetworkConfiguration::<
        Block,
        <Block as sp_runtime::traits::Block>::Hash,
        N,
    >::new(&config.network, config.prometheus_registry().cloned());
    let metrics = N::register_notification_metrics(config.prometheus_registry());

    let peer_store_handle = net_config.peer_store_handle();
    let grandpa_protocol_name = sc_consensus_grandpa::protocol_standard_name(
        &client
            .block_hash(0)
            .ok()
            .flatten()
            .expect("Genesis block exists; qed"),
        &config.chain_spec,
    );
    let (grandpa_protocol_config, grandpa_notification_service) =
        sc_consensus_grandpa::grandpa_peers_set_config::<_, N>(
            grandpa_protocol_name.clone(),
            metrics.clone(),
            peer_store_handle,
        );
    net_config.add_notification_protocol(grandpa_protocol_config);

    let warp_sync = Arc::new(sc_consensus_grandpa::warp_proof::NetworkProvider::new(
        backend.clone(),
        grandpa_link.shared_authority_set().clone(),
        Vec::default(),
    ));

    let (network, system_rpc_tx, tx_handler_controller, sync_service) =
        sc_service::build_network(sc_service::BuildNetworkParams {
            config: &config,
            net_config,
            client: client.clone(),
            transaction_pool: transaction_pool.clone(),
            spawn_handle: task_manager.spawn_handle(),
            import_queue,
            block_announce_validator_builder: None,
            warp_sync_config: Some(WarpSyncConfig::WithProvider(warp_sync)),
            block_relay: None,
            metrics,
        })?;

    if config.offchain_worker.enabled {
        let offchain_workers =
            sc_offchain::OffchainWorkers::new(sc_offchain::OffchainWorkerOptions {
                runtime_api_provider: client.clone(),
                is_validator: config.role.is_authority(),
                keystore: Some(keystore_container.keystore()),
                offchain_db: backend.offchain_storage(),
                transaction_pool: Some(OffchainTransactionPoolFactory::new(
                    transaction_pool.clone(),
                )),
                network_provider: Arc::new(network.clone()),
                enable_http_requests: true,
                custom_extensions: |_| vec![],
            })?;
        task_manager.spawn_handle().spawn(
            "offchain-workers-runner",
            "offchain-worker",
            offchain_workers
                .run(client.clone(), task_manager.spawn_handle())
                .boxed(),
        );
    }

    let role = config.role;
    let force_authoring = config.force_authoring;
    let backoff_authoring_blocks: Option<()> = None;
    let name = config.network.node_name.clone();
    let enable_grandpa = !config.disable_grandpa;
    let prometheus_registry = config.prometheus_registry().cloned();

    let rpc_extensions_builder = {
        let client = client.clone();
        let pool = transaction_pool.clone();

        Box::new(move |_| {
            let deps = crate::rpc::FullDeps {
                client: client.clone(),
                pool: pool.clone(),
            };
            crate::rpc::create_full(deps).map_err(Into::into)
        })
    };

    let _rpc_handlers = sc_service::spawn_tasks(sc_service::SpawnTasksParams {
        network: Arc::new(network.clone()),
        client: client.clone(),
        keystore: keystore_container.keystore(),
        task_manager: &mut task_manager,
        transaction_pool: transaction_pool.clone(),
        rpc_builder: rpc_extensions_builder,
        backend,
        system_rpc_tx,
        tx_handler_controller,
        sync_service: sync_service.clone(),
        config,
        telemetry: telemetry.as_mut(),
    })?;

    if role.is_authority() {
        let proposer_factory = sc_basic_authorship::ProposerFactory::new(
            task_manager.spawn_handle(),
            client.clone(),
            transaction_pool.clone(),
            prometheus_registry.as_ref(),
            telemetry.as_ref().map(|x| x.handle()),
        );

        let slot_duration = sc_consensus_aura::slot_duration(&*client)?;

        let aura = sc_consensus_aura::start_aura::<AuraPair, _, _, _, _, _, _, _, _, _, _>(
            StartAuraParams {
                slot_duration,
                client,
                select_chain,
                block_import,
                proposer_factory,
                create_inherent_data_providers: move |_, ()| async move {
                    let timestamp = sp_timestamp::InherentDataProvider::from_system_time();

                    let slot =
                        sp_consensus_aura::inherents::InherentDataProvider::from_timestamp_and_slot_duration(
                            *timestamp,
                            slot_duration,
                        );

                    Ok((slot, timestamp))
                },
                force_authoring,
                backoff_authoring_blocks,
                keystore: keystore_container.keystore(),
                sync_oracle: sync_service.clone(),
                justification_sync_link: sync_service.clone(),
                block_proposal_slot_portion: SlotProportion::new(2f32 / 3f32),
                max_block_proposal_slot_portion: None,
                telemetry: telemetry.as_ref().map(|x| x.handle()),
                compatibility_mode: Default::default(),
            },
        )?;

        // La tarea de authoring de AURA es esencial: si falla, baja el service.
        task_manager
            .spawn_essential_handle()
            .spawn_blocking("aura", Some("block-authoring"), aura);
    }

    if enable_grandpa {
        // Si el node no participa activamente en consensus, no necesita keystore.
        let keystore = if role.is_authority() {
            Some(keystore_container.keystore())
        } else {
            None
        };

        let grandpa_config = sc_consensus_grandpa::Config {
            gossip_duration: Duration::from_millis(333),
            justification_generation_period: GRANDPA_JUSTIFICATION_PERIOD,
            name: Some(name),
            observer_enabled: false,
            keystore,
            local_role: role,
            telemetry: telemetry.as_ref().map(|x| x.handle()),
            protocol_name: grandpa_protocol_name,
        };

        let grandpa_config = sc_consensus_grandpa::GrandpaParams {
            config: grandpa_config,
            link: grandpa_link,
            network,
            sync: Arc::new(sync_service),
            notification_service: grandpa_notification_service,
            voting_rule: sc_consensus_grandpa::VotingRulesBuilder::default().build(),
            prometheus_registry,
            shared_voter_state: SharedVoterState::empty(),
            telemetry: telemetry.as_ref().map(|x| x.handle()),
            offchain_tx_pool_factory: OffchainTransactionPoolFactory::new(transaction_pool),
        };

        // La tarea del voter de GRANDPA es infalible: si falla, baja el service.
        task_manager.spawn_essential_handle().spawn_blocking(
            "grandpa-voter",
            None,
            sc_consensus_grandpa::run_grandpa_voter(grandpa_config)?,
        );
    }

    Ok(task_manager)
}