this_algorithm/this_algorithm-wasm/src/lib.rs

use std::str::FromStr;

use wasm_bindgen::prelude::*;

#[wasm_bindgen]
extern "C" {
    // fn alert(s: &str);
    #[wasm_bindgen(js_namespace = console, js_name = log)]
    fn log_str(s: &str);
}

#[wasm_bindgen]
pub fn address_from_lat_lon(lat: f64, lon: f64) -> Result<String, String> {
    this_algorithm::Address::from_lat_lon(lat, lon)
        .map(|a| a.to_string())
        .map_err(|e| e.to_string())
}

#[wasm_bindgen]
pub fn address_to_lat_lon(addr_str: &str) -> Result<Vec<f64>, String> {
    this_algorithm::Address::from_str(addr_str)
        .as_ref()
        .map_err(|e| e.to_string())
        .map(this_algorithm::Address::to_lat_lon)
        .map(|(lat, lon)| vec![lat, lon])
}