WASM experiments with OOP

Cargo.toml

@@ -21,6 +21,7 @@ mime = "0.3"
 utoipa = { git = "https://github.com/juhaku/utoipa", rev = "d522f744259dc4fde5f45d187983fb68c8167029", optional = true }
 wasm-bindgen = "0.2.99"
 serde-wasm-bindgen = "0.6.5"
+js-sys = "0.3.76"
 
 [dev-dependencies]
 pubky = "0.3.0"

src/traits.rs

@@ -1,7 +1,8 @@
 use crate::common::timestamp;
 use base32::{decode, encode, Alphabet};
 use blake3::Hasher;
-use serde::de::DeserializeOwned;
+use serde::{de::DeserializeOwned, Serialize};
+use wasm_bindgen::prelude::*;
 
 pub trait TimestampId {
     /// Creates a unique identifier based on the current timestamp.
@@ -124,3 +125,21 @@ pub trait HasPath {
 pub trait HasPubkyIdPath {
     fn create_path(&self, pubky_id: &str) -> String;
 }
+
+pub trait JSdata: HasPath + Serialize {
+    // helper that returns { id, path, json }
+    fn get_data(&self) -> Result<JsValue, JsValue> {
+        let path = self.create_path();
+
+        let json_val = serde_wasm_bindgen::to_value(&self)
+            .map_err(|e| JsValue::from_str(&format!("JSON Error: {}", e)))?;
+
+        // Construct a small JS object
+        let obj = js_sys::Object::new();
+        js_sys::Reflect::set(&obj, &JsValue::from_str("id"), &JsValue::null())?;
+        js_sys::Reflect::set(&obj, &JsValue::from_str("path"), &JsValue::from_str(&path))?;
+        js_sys::Reflect::set(&obj, &JsValue::from_str("json"), &json_val)?;
+
+        Ok(obj.into())
+    }
+}

src/user.rs

@@ -1,9 +1,10 @@
 use crate::{
-    traits::{HasPath, Validatable},
+    traits::{HasPath, JSdata, Validatable},
     APP_PATH,
 };
 use serde::{Deserialize, Serialize};
 use url::Url;
+use wasm_bindgen::prelude::*;
 
 // Validation constants
 const MIN_USERNAME_LENGTH: usize = 3;
@@ -19,26 +20,38 @@ const MAX_STATUS_LENGTH: usize = 50;
 use utoipa::ToSchema;
 
 /// URI: /pub/pubky.app/profile.json
+#[wasm_bindgen]
 #[derive(Deserialize, Serialize, Debug, Default, Clone)]
 #[cfg_attr(feature = "openapi", derive(ToSchema))]
 pub struct PubkyAppUser {
+    #[wasm_bindgen(skip)]
+    // Avoid wasm-pack automatically generating getter/setters for the pub fields.
     pub name: String,
+    #[wasm_bindgen(skip)]
     pub bio: Option<String>,
+    #[wasm_bindgen(skip)]
     pub image: Option<String>,
+    #[wasm_bindgen(skip)]
     pub links: Option<Vec<PubkyAppUserLink>>,
+    #[wasm_bindgen(skip)]
     pub status: Option<String>,
 }
 
 /// Represents a user's single link with a title and URL.
+#[wasm_bindgen]
 #[derive(Serialize, Deserialize, Default, Clone, Debug)]
 #[cfg_attr(feature = "openapi", derive(ToSchema))]
 pub struct PubkyAppUserLink {
+    #[wasm_bindgen(skip)]
     pub title: String,
+    #[wasm_bindgen(skip)]
     pub url: String,
 }
 
+#[wasm_bindgen]
 impl PubkyAppUser {
     /// Creates a new `PubkyAppUser` instance and sanitizes it.
+    #[wasm_bindgen(constructor)]
     pub fn new(
         name: String,
         bio: Option<String>,
@@ -55,8 +68,15 @@ impl PubkyAppUser {
         }
         .sanitize()
     }
+
+    #[wasm_bindgen]
+    pub fn get_data(&self) -> Result<JsValue, JsValue> {
+        JSdata::get_data(self)
+    }
 }
 
+impl JSdata for PubkyAppUser {}
+
 impl HasPath for PubkyAppUser {
     fn create_path(&self) -> String {
         format!("{}profile.json", APP_PATH)
@@ -171,6 +191,15 @@ impl Validatable for PubkyAppUser {
     }
 }
 
+#[wasm_bindgen]
+impl PubkyAppUserLink {
+    /// Creates a new `PubkyAppUserLink` instance and sanitizes it.
+    #[wasm_bindgen(constructor)]
+    pub fn new(title: String, url: String) -> Self {
+        Self { title, url }.sanitize()
+    }
+}
+
 impl Validatable for PubkyAppUserLink {
     fn sanitize(self) -> Self {
         let title = self