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use serde::{Deserialize, Serialize};
use std::fmt;

#[derive(Debug, Serialize, Deserialize, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
#[serde(transparent)]
pub struct RequestId(IdRepr);

#[derive(Debug, Serialize, Deserialize, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
#[serde(untagged)]
enum IdRepr {
    I32(i32),
    String(String),
}

impl From<i32> for RequestId {
    fn from(id: i32) -> RequestId {
        RequestId(IdRepr::I32(id))
    }
}

impl From<String> for RequestId {
    fn from(id: String) -> RequestId {
        RequestId(IdRepr::String(id))
    }
}

impl fmt::Display for RequestId {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
        match &self.0 {
            IdRepr::I32(it) => fmt::Display::fmt(it, f),
            IdRepr::String(it) => fmt::Debug::fmt(it, f),
        }
    }
}