keyhive_wasm 0.3.0

WebAssembly wrappers for keyhive_core
Documentation 
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use derive_more::{Display, From, Into};
use keyhive_core::principal::{document::id::DocumentId, identifier::Identifier};
use thiserror::Error;
use wasm_bindgen::prelude::*;

#[wasm_bindgen(js_name = DocumentId)]
#[derive(Debug, Clone, Copy, Display, From, Into)]
pub struct JsDocumentId(pub(crate) keyhive_core::principal::document::id::DocumentId);

#[wasm_bindgen(js_class = DocumentId)]
impl JsDocumentId {
    #[wasm_bindgen(constructor)]
    pub fn new(bytes: Vec<u8>) -> Result<Self, JsParseDocIdError> {
        let vec: [u8; 32] = bytes.try_into().map_err(|_| JsParseDocIdError)?;

        // NOTE signature::Error is opaque, so we can just ignore the inbuilt error
        let vk = ed25519_dalek::VerifyingKey::from_bytes(&vec).map_err(|_| JsParseDocIdError)?;

        Ok(JsDocumentId(DocumentId::from(Identifier::from(vk))))
    }

    #[wasm_bindgen(js_name = toString)]
    pub fn to_js_string(&self) -> String {
        self.to_string()
    }

    #[wasm_bindgen(js_name = toJsValue)]
    pub fn to_js_value(&self) -> JsValue {
        JsValue::from(self.to_js_string())
    }

    #[wasm_bindgen(js_name = toBytes)]
    pub fn to_bytes(&self) -> Vec<u8> {
        self.0.as_bytes().to_vec()
    }
}

#[derive(Debug, Clone, Error)]
#[error("Failed to parse DocumentId from bytes")]
pub struct JsParseDocIdError;

impl From<JsParseDocIdError> for JsValue {
    fn from(err: JsParseDocIdError) -> Self {
        let err = js_sys::Error::new(&err.to_string());
        err.set_name("ParseDocIdError");
        err.into()
    }
}