DEEP DIVE INTO DATA & DEV

#[starknet::contract]
mod LegacyVault {
    #[storage]
    struct Storage {
        owner: ContractAddress,
        beneficiary: ContractAddress,
        last_active: u64,
        timeout: u64,
        is_claimed: bool,
    }

    #[external(v0)]
    impl LegacyVaultImpl of ILegacyVault<ContractState> {
        fn ping_activity(ref self: ContractState) {
            self.assert_only_owner();
            self.last_active.write(get_block_timestamp());
        }

        fn execute_claim(ref self: ContractState) {
            let elapsed = get_block_timestamp() - self.last_active.read();
            assert(elapsed >= self.timeout.read(), 'Owner still active');
            assert(!self.is_claimed.read(), 'Already claimed');
            self.transfer_to_beneficiary(self.beneficiary.read());
            self.is_claimed.write(true);
        }
    }
}