aplk-gw 0.1.8

test description 03
Documentation 
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use soroban_sdk::{contracttype, Address, Env};

#[derive(Clone)]
#[contracttype]
pub enum DataKey {
    Admin,
}

pub fn has_administrator(e: &Env) -> bool {
    let key = DataKey::Admin;
    e.storage().instance().has(&key)
}

fn read_administrator(e: &Env) -> Address {
    let key = DataKey::Admin;
    e.storage().instance().get(&key).unwrap()
}

pub fn write_administrator(e: &Env, id: &Address) {
    let key = DataKey::Admin;
    e.storage().instance().set(&key, id);
}

pub fn check_admin(e: &Env, admin: &Address) {
    if admin != &read_administrator(e) {
        panic!("not authorized by admin")
    }
}