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use std::{marker::PhantomData, sync::Arc};

use sc_client_api::Backend;
use sp_runtime::traits::{Block as BlockT, Header as HeaderT};

use crate::{phron_primitives::BlockNumber, party::traits::ChainState, ClientForPhron};

pub struct ChainStateImpl<B, BE, CFA>
where
    B: BlockT,
    BE: Backend<B>,
    CFA: ClientForPhron<B, BE>,
{
    pub client: Arc<CFA>,
    pub _phantom: PhantomData<(B, BE)>,
}

impl<B, BE, CFA> ChainState for ChainStateImpl<B, BE, CFA>
where
    B: BlockT,
    B::Header: HeaderT<Number = BlockNumber>,
    BE: Backend<B>,
    CFA: ClientForPhron<B, BE>,
{
    fn best_block_number(&self) -> BlockNumber {
        self.client.info().best_number
    }
    fn finalized_number(&self) -> BlockNumber {
        self.client.info().finalized_number
    }
}