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use std::fmt;

enum_from_primitive! {
#[derive(Debug)]
pub enum ZkError {
    APIError = -100,
    AuthFailed = -115,
    BadArguments = -8,
    BadVersion = -103,
    ConnectionLoss = -4,
    DataInconsistency = -3,
    InvalidACL = -114,
    InvalidCallback = -113,
    MarshallingError = -5,
    NoAuth = -102,
    NoChildrenForEphemerals = -108,
    NodeExists = -110,
    NoNode = -101,
    NotEmpty = -111,
    OperationTimeout = -7,
    RuntimeInconsistency = -2,
    SessionExpired = -112,
    SystemError = -1,
    Unimplemented = -6
}
}

// TODO For me this is ugly compared to the previous #[derive(Show)]
impl fmt::Display for ZkError {
    fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
        write!(fmt, "{}", self)
    }
}

pub mod perms {
    pub const READ: i32 = 1 << 0;
    pub const WRITE: i32 = 1 << 1;
    pub const CREATE: i32 = 1 << 2;
    pub const DELETE: i32 = 1 << 3;
    pub const ADMIN: i32 = 1 << 4;
    pub const ALL: i32 = READ | WRITE | CREATE | DELETE | ADMIN;
}

pub enum CreateMode {
    Persistent,
    Ephemeral,
    PersistentSequential,
    EphemeralSequential
}

enum_from_primitive! {
#[derive(Debug)]
pub enum KeeperState {
    Disconnected = 0,
    SyncConnected = 3,
    AuthFailed = 4,
    ConnectedReadOnly = 5,
    SaslAuthenticated = 6,
    Expired = -112
}
}

enum_from_primitive! {
#[derive(Debug)]
pub enum WatchedEventType {
    None = -1,
    NodeCreated = 1,
    NodeDeleted = 2,
    NodeDataChanged = 3,
    NodeChildrenChanged = 4,
    DataWatchRemoved = 5,
    ChildWatchRemoved = 6
}
}