//  Copyright 2020, The Tari Project
//
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//  following conditions are met:
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//  1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following
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//  2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the
//  following disclaimer in the documentation and/or other materials provided with the distribution.
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use std::{borrow::Cow, io};

use thiserror::Error;
use tokio::task::JoinError;

use crate::{multiaddr::Multiaddr, socks::SocksError};

#[derive(Debug, Error)]
pub enum DnsResolverError {
    #[error("The address is empty")]
    EmptyAddress,
    #[error("Invalid address '{address}': {message}")]
    InvalidAddress {
        address: Multiaddr,
        message: Cow<'static, str>,
    },
    #[error("DNS Resolution: address '{0}' is not supported")]
    UnsupportedAddress(Multiaddr),
    #[error("DNS Resolution: Expected a TCP/IP address, got '{0}'")]
    ExpectedTcpIpAddress(Multiaddr),
    #[error("DNS Resolution: Could not connect to proxy: {0}")]
    ProxyConnectFailed(io::Error),
    #[error("SOCKS error: {0}")]
    SocksError(#[from] SocksError),
    #[error("Name resolution failed for address `{address_str}`: {source}")]
    NameResolutionFailed { address_str: String, source: io::Error },
    #[error("DNS address not found")]
    DnsAddressNotFound,
    #[error("Failed to join on blocking task: {0}")]
    BlockingJoinError(#[from] JoinError),
}
