//! storage program
//!  Receive mining proofs from miners, validate the answers
//!  and give reward for good proofs.

use bank::Account;
use bincode::deserialize;
use signature::Pubkey;
use transaction::Transaction;

#[derive(Serialize, Deserialize, Debug, Clone)]
pub enum StorageProgram {
    SubmitMiningProof { sha_state: [u8; 32] },
}

pub const STORAGE_PROGRAM_ID: [u8; 32] = [1u8; 32];

impl StorageProgram {
    pub fn check_id(program_id: &Pubkey) -> bool {
        program_id.as_ref() == STORAGE_PROGRAM_ID
    }

    pub fn id() -> Pubkey {
        Pubkey::new(&STORAGE_PROGRAM_ID)
    }

    pub fn get_balance(account: &Account) -> i64 {
        account.tokens
    }

    pub fn process_transaction(tx: &Transaction, _accounts: &mut [Account]) {
        let syscall: StorageProgram = deserialize(&tx.userdata).unwrap();
        match syscall {
            StorageProgram::SubmitMiningProof { sha_state } => {
                info!("Mining proof submitted with state {}", sha_state[0]);
                return;
            }
        }
    }
}

#[cfg(test)]
mod test {}