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68 lines
2.2 KiB
Rust
68 lines
2.2 KiB
Rust
// Stract is an open source web search engine.
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// Copyright (C) 2024 Stract ApS
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as
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// published by the Free Software Foundation, either version 3 of the
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// License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <https://www.gnu.org/licenses/>.
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//! WASM Bindings for Client Side JavaScript
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//!
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//! To be packaged with wasm-pack + vite and served to the browser
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use thiserror::Error;
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use wasm_bindgen::prelude::*;
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#[derive(Error, Debug)]
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pub enum Error {
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#[error("Failed to serialize")]
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Serialization(#[from] serde_wasm_bindgen::Error),
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#[error("Optics error: {0}")]
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OpticParse(#[from] optics::Error),
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#[error("Json serialization error: {0}")]
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SerdeJson(#[from] serde_json::Error),
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}
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impl From<Error> for JsValue {
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fn from(val: Error) -> Self {
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JsValue::from_str(&format!("{val:?}"))
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}
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}
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#[wasm_bindgen]
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extern "C" {
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#[wasm_bindgen(js_namespace = console, js_name = log)]
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fn console_log(s: &str);
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}
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/// WASM Bindings for Optics
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///
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/// Used to prevent recreation of the parsing methods in JS.
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#[wasm_bindgen]
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pub struct Optic;
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#[wasm_bindgen]
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impl Optic {
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/// Takes the contents of a .optic file and converts it to a Result containing either an error or a JSON serialized [`HostRankings`]
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#[wasm_bindgen(js_name = parsePreferenceOptic)]
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pub fn parse_preference_optic(contents: JsValue) -> Result<JsValue, Error> {
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let optic_contents: String = serde_wasm_bindgen::from_value(contents)?;
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let host_rankings = optics::Optic::parse(&optic_contents)?.host_rankings;
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let rankings_json = serde_json::to_string(&host_rankings)?;
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console_log(&("Parsed rankings to JSON: ".to_owned() + &rankings_json));
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Ok(serde_wasm_bindgen::to_value(&rankings_json)?)
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}
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}
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