Cleanup xpin_wasm encoding

spatial-coordinate-systems/src/all.rs

@@ -1,3 +1,5 @@
+#[cfg(feature = "serde")]
+use serde::{Deserialize, Serialize};
 use std::str::FromStr;
 
 use crate::{
@@ -11,6 +13,7 @@ use crate::{
     LatLon,
 };
 
+#[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
 pub struct Coordinates {
     pub latlon: LatLon,
 

xpin-wasm/src/lib.rs

@@ -33,7 +33,6 @@ impl EncodedAddress {
 
     /// Get the string representation of the encoded value
     #[wasm_bindgen(js_name = getCoordsRepr)]
-    // TODO: Do not return option
     pub fn get_coords_repr(&self) -> String {
         self.src_coords.to_string()
     }
@@ -50,51 +49,25 @@ impl EncodedAddress {
             .map(|s| s.to_string())
     }
 
-    /// Get an encoded address from a latitude/longitude
-    #[wasm_bindgen]
-    pub fn from_lat_lon(lat: f64, lon: f64) -> Result<EncodedAddress, String> {
-        Self::try_from(
-            xpin::Address::from_lat_lon(lat, lon)
-                .as_ref()
-                .map_err(|e| e.to_string())?,
-        )
-        .map_err(|e| e.to_string())
-    }
-
-    /// Get an encoded address from a latitude/longitude
+    /// Get an encoded address from a coordinate
     #[wasm_bindgen]
     pub fn from_coordinate(i: &str) -> Result<EncodedAddress, String> {
-        console_error_panic_hook::set_once();
-
-        let src_coords = Coordinate::from_str(i)
-            .map_err(|e| format!("Could not parse str {i:?} as a coordinate {e:?}"))?;
-
-        let src_latlon = LatLon::from(&src_coords);
-
-        let mut ret = Self::try_from(
-            xpin::Address::from_lat_lon(src_latlon.get_lat(), src_latlon.get_lon())
-                .as_ref()
-                .map_err(|e| e.to_string())?,
-        )
-        .map_err(|e| e.to_string())?;
-
-        ret.src_coords = ret
-            .src_coords
-            .try_as_type(&src_coords.get_type().into())
-            .map_err(|e| e.to_string())?
-            .into();
-
-        Ok(ret)
+        Self::from_str(i)
     }
 
+    /// Get an encoded address from an xpin address
     #[wasm_bindgen]
     pub fn from_address(addr_str: &str) -> Result<EncodedAddress, String> {
-        Self::try_from(
-            xpin::Address::from_str(addr_str)
+        let (lat, lon) = xpin::Address::from_str(addr_str)
             .as_ref()
-                .map_err(|e| e.to_string())?,
-        )
-        .map_err(|e| e.to_string())
+            .map_err(|e| e.to_string())?
+            .as_lat_lon();
+
+        // TODO: Do not allocate a string here
+        let src_coords =
+            Coordinate::from_str(&format!("{}, {}", lat, lon)).map_err(|e| e.to_string())?;
+
+        Self::try_from(src_coords)
     }
 }
 
@@ -122,36 +95,62 @@ impl From<&spatial_coordinate_systems::all::Coordinates> for Coordinates {
     }
 }
 
-impl TryFrom<&'_ Address<'_>> for EncodedAddress {
-    type Error = String;
+impl FromStr for EncodedAddress {
+    type Err = String;
 
-    fn try_from(addr: &Address) -> Result<Self, Self::Error> {
+    fn from_str(s: &str) -> Result<Self, Self::Err> {
         console_error_panic_hook::set_once();
 
-        let (lat, lon) = addr.as_lat_lon();
-        // TODO: Do not allocate a string here
-        let src_coords =
-            Coordinate::from_str(&format!("{}, {}", lat, lon)).map_err(|e| e.to_string())?;
+        // The coordinates as encoded by the user
+        let src_coords = Coordinate::from_str(s)
+            .map_err(|e| format!("Could not parse str {s:?} as a coordinate {e:?}"))?;
 
-        let all_coordinates = spatial_coordinate_systems::all::Coordinates::try_from(&src_coords)
+        Self::try_from(src_coords)
+    }
+}
+
+impl TryFrom<Coordinate> for EncodedAddress {
+    type Error = String;
+
+    fn try_from(src_coords: Coordinate) -> Result<Self, Self::Error> {
+        console_error_panic_hook::set_once();
+
+        // The latitude and longitude encoded by the user
+        let src_latlon = LatLon::from(&src_coords);
+
+        // The encoded xpin address
+        let addr = xpin::Address::from_lat_lon(src_latlon.get_lat(), src_latlon.get_lon())
+            .map_err(|e| e.to_string())?;
+
+        // The latitude and longituded encoded by the xpin address
+        let (addr_lat, addr_lon) = addr.as_lat_lon();
+
+        // The coordinates as encoded by the xpin address
+        let addr_coordinates = spatial_coordinate_systems::all::Coordinates::try_from(
+            LatLon::new(addr_lat, addr_lon)
+                .map_err(|e| format!("Error converting xpin latlon to latlon: {e:?}"))?,
+        )
         .map_err(|e| e.to_string())?;
 
         Ok(Self {
             address: addr.to_string(),
-            lat_lon: Box::new([lat, lon]),
-            src_coords,
-            coordinate_urls: CoordinateUrls::try_from(all_coordinates.latlon)
+            lat_lon: Box::new([addr_lat, addr_lon]),
+            src_coords: src_coords
+                .try_as_type(&src_coords.get_type().into())
                 .map_err(|e| e.to_string())?
                 .into(),
-            decimal_degrees: format!("{}, {}", lat, lon),
-            all_coordinates: Coordinates::from(&all_coordinates),
+            coordinate_urls: CoordinateUrls::try_from(addr_coordinates.latlon)
+                .map_err(|e| e.to_string())?
+                .into(),
+            decimal_degrees: format!("{}, {}", addr_lat, addr_lon),
+            all_coordinates: Coordinates::from(&addr_coordinates),
         })
     }
 }
 
 #[cfg(test)]
 mod tests {
-    // use super::*;
+    use super::*;
 
     #[test]
     fn test_general() {