expede/ethereum-status-codes

pragma solidity ^0.5.0;

import { FISSION } from "../FISSION.sol";

contract SimpleAuth {
    enum Level {
        Banned,
        Unregistered,
        Member,
        Admin
    }

    mapping (address => Level) private auth;

    constructor() public {
        auth[tx.origin] = Level.Admin;
    }

    function min(Level minLevel) public view returns (byte status) {
        if (auth[tx.origin] == Level.Banned) { return FISSION.code(FISSION.Status.Revoked); }
        if (auth[tx.origin] < minLevel) { return FISSION.code(FISSION.Status.Disallowed_Stop); }
        return FISSION.code(FISSION.Status.Allowed_Go);
    }

    function set(address who, Level level) public returns (byte status) {
        require(auth[tx.origin] == Level.Admin, "Must be an admin");
        auth[who] = level;
        return FISSION.code(FISSION.Status.Success);
    }
}