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use crate::{
    database::Database,
    service::{
        adapters::{
            BlockImporterAdapter,
            ConsensusParametersProvider,
            P2PAdapter,
            SharedMemoryPool,
            StaticGasPrice,
        },
        vm_pool::MemoryFromPool,
    },
};
use fuel_core_services::stream::BoxStream;
use fuel_core_storage::{
    tables::{
        Coins,
        ContractsRawCode,
        Messages,
    },
    Result as StorageResult,
    StorageAsRef,
};
use fuel_core_txpool::ports::{
    BlockImporter,
    ConsensusParametersProvider as ConsensusParametersProviderTrait,
    GasPriceProvider,
    MemoryPool,
};
use fuel_core_types::{
    entities::{
        coins::coin::CompressedCoin,
        relayer::message::Message,
    },
    fuel_tx::{
        ConsensusParameters,
        Transaction,
        UtxoId,
    },
    fuel_types::{
        BlockHeight,
        ContractId,
        Nonce,
    },
    services::{
        block_importer::SharedImportResult,
        p2p::{
            GossipsubMessageAcceptance,
            GossipsubMessageInfo,
            TransactionGossipData,
        },
    },
};
use std::sync::Arc;

impl BlockImporter for BlockImporterAdapter {
    fn block_events(&self) -> BoxStream<SharedImportResult> {
        self.events()
    }
}

#[cfg(feature = "p2p")]
impl fuel_core_txpool::ports::PeerToPeer for P2PAdapter {
    type GossipedTransaction = TransactionGossipData;

    fn broadcast_transaction(&self, transaction: Arc<Transaction>) -> anyhow::Result<()> {
        if let Some(service) = &self.service {
            service.broadcast_transaction(transaction)
        } else {
            Ok(())
        }
    }

    fn gossiped_transaction_events(&self) -> BoxStream<Self::GossipedTransaction> {
        use tokio_stream::{
            wrappers::BroadcastStream,
            StreamExt,
        };
        if let Some(service) = &self.service {
            Box::pin(
                BroadcastStream::new(service.subscribe_tx())
                    .filter_map(|result| result.ok()),
            )
        } else {
            fuel_core_services::stream::IntoBoxStream::into_boxed(tokio_stream::pending())
        }
    }

    fn notify_gossip_transaction_validity(
        &self,
        message_info: GossipsubMessageInfo,
        validity: GossipsubMessageAcceptance,
    ) -> anyhow::Result<()> {
        if let Some(service) = &self.service {
            service.notify_gossip_transaction_validity(message_info, validity)
        } else {
            Ok(())
        }
    }
}

#[cfg(not(feature = "p2p"))]
impl fuel_core_txpool::ports::PeerToPeer for P2PAdapter {
    type GossipedTransaction = TransactionGossipData;

    fn broadcast_transaction(
        &self,
        _transaction: Arc<Transaction>,
    ) -> anyhow::Result<()> {
        Ok(())
    }

    fn gossiped_transaction_events(&self) -> BoxStream<Self::GossipedTransaction> {
        Box::pin(fuel_core_services::stream::pending())
    }

    fn notify_gossip_transaction_validity(
        &self,
        _message_info: GossipsubMessageInfo,
        _validity: GossipsubMessageAcceptance,
    ) -> anyhow::Result<()> {
        Ok(())
    }
}

impl fuel_core_txpool::ports::TxPoolDb for Database {
    fn utxo(&self, utxo_id: &UtxoId) -> StorageResult<Option<CompressedCoin>> {
        self.storage::<Coins>()
            .get(utxo_id)
            .map(|t| t.map(|t| t.as_ref().clone()))
    }

    fn contract_exist(&self, contract_id: &ContractId) -> StorageResult<bool> {
        self.storage::<ContractsRawCode>().contains_key(contract_id)
    }

    fn message(&self, id: &Nonce) -> StorageResult<Option<Message>> {
        self.storage::<Messages>()
            .get(id)
            .map(|t| t.map(|t| t.as_ref().clone()))
    }
}

impl GasPriceProvider for StaticGasPrice {
    fn gas_price(&self, _block_height: BlockHeight) -> Option<u64> {
        Some(self.gas_price)
    }
}

impl ConsensusParametersProviderTrait for ConsensusParametersProvider {
    fn latest_consensus_parameters(&self) -> Arc<ConsensusParameters> {
        self.shared_state.latest_consensus_parameters()
    }
}

#[async_trait::async_trait]
impl MemoryPool for SharedMemoryPool {
    type Memory = MemoryFromPool;

    async fn get_memory(&self) -> Self::Memory {
        self.memory_pool.take_raw().await
    }
}