use crate::{ArchiveError, ArchiveResult};
use std::error::Error;
use std::fmt::Display;

pub type StructResult<T> = ArchiveResult<T, StructError>;

#[derive(Debug)]
pub enum StructError {
    SerializationNotSupported { type_name: &'static str },
    DeserializationNotSupported { type_name: &'static str },
    UnexpectedEOF,
}

impl From<StructError> for ArchiveError<StructError> {
    fn from(value: StructError) -> Self {
        Self::Archivator {
            module: "Struct serializer".to_string(),
            error: value,
        }
    }
}

impl Display for StructError {
    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
        match self {
            StructError::SerializationNotSupported { type_name } => {
                writeln!(f, "Serialization for type '{type_name}' not supported")
            }
            StructError::DeserializationNotSupported { type_name } => {
                writeln!(f, "Deserialization for type '{type_name}' not supported")
            }
            StructError::UnexpectedEOF => writeln!(f, "Unexpected EOF"),
        }
    }
}

impl Error for StructError {}