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use crate::stream::Stream;

use thiserror::Error;

#[derive(Debug, Error)]
pub enum Error {
    #[error("index_over_kdr > 0 is not supported yet")]
    UnsupportedIndexOverKdr,
    #[error("SRTP Master Key must be len {0}, got {1}")]
    SrtpMasterKeyLength(usize, usize),
    #[error("SRTP Salt must be len {0}, got {1}")]
    SrtpSaltLength(usize, usize),
    #[error("SyntaxError: {0}")]
    ExtMapParse(String),
    #[error("ssrc {0} not exist in srtp_ssrc_state")]
    SsrcMissingFromSrtp(u32),
    #[error("srtp ssrc={0} index={1}: duplicated")]
    SrtpSsrcDuplicated(u32, u16),
    #[error("srtcp ssrc={0} index={1}: duplicated")]
    SrtcpSsrcDuplicated(u32, usize),
    #[error("ssrc {0} not exist in srtcp_ssrc_state")]
    SsrcMissingFromSrtcp(u32),
    #[error("Stream with ssrc {0} exists")]
    StreamWithSsrcExists(u32),
    #[error("Session RTP/RTCP type must be same as input buffer")]
    SessionRtpRtcpTypeMismatch,
    #[error("Session EOF")]
    SessionEof,
    #[error("too short SRTP packet: only {0} bytes, expected > {1} bytes")]
    SrtpTooSmall(usize, usize),
    #[error("too short SRTCP packet: only {0} bytes, expected > {1} bytes")]
    SrtcpTooSmall(usize, usize),
    #[error("failed to verify rtp auth tag")]
    RtpFailedToVerifyAuthTag,
    #[error("failed to verify rtcp auth tag")]
    RtcpFailedToVerifyAuthTag,
    #[error("SessionSRTP has been closed")]
    SessionSrtpAlreadyClosed,
    #[error("this stream is not a RTPStream")]
    InvalidRtpStream,
    #[error("this stream is not a RTCPStream")]
    InvalidRtcpStream,
    #[error("UtilError: {0}")]
    UtilError(#[from] util::error::Error),
    #[error("RtpError: {0}")]
    RtpError(#[from] rtp::error::Error),
    #[error("RtcpError: {0}")]
    RtcpError(#[from] rtcp::error::Error),
    #[error("IoError: {0}")]
    Io(#[from] std::io::Error),
    #[error("AesGcm: {0}")]
    AesGcm(#[from] aes_gcm::Error),
    #[error("InvalidKeyLength: {0}")]
    InvalidKeyLength(#[from] hmac::crypto_mac::InvalidKeyLength),
    #[error("SendError: {0}")]
    SendUnit(#[from] tokio::sync::mpsc::error::SendError<()>),
    #[error("SendError: {0}")]
    SendU32(#[from] tokio::sync::mpsc::error::SendError<u32>),
    #[error("SendError: {0}")]
    SendStream(#[from] tokio::sync::mpsc::error::SendError<Stream>),
}