use thiserror::Error;
#[derive(Error, Debug)]
pub enum Mt5Error {
#[error("IO error: {0}")]
IoError(#[from] std::io::Error),
#[error("Connection failed: {0}")]
ConnectionFailed(String),
#[error("Protocol error: {0}")]
ProtocolError(String),
#[error("Invalid response: {0}")]
InvalidResponse(String),
#[error("MT5 not initialized")]
NotInitialized,
#[error("Command failed: cmd={cmd}, error={error}")]
CommandFailed { cmd: u32, error: String },
#[error("Not supported: {0}")]
NotSupported(String),
}
pub type Result<T> = std::result::Result<T, Mt5Error>;