move retrieval of sprite url from svelte to rust

src-tauri/src/services/sprite.rs

@@ -0,0 +1,33 @@
+use crate::{lock_r, models::dolls::DollDto, state::FDOLL};
+
+const APPLY_TEXTURE: bool = true;
+
+pub fn get_active_doll() -> Option<DollDto> {
+    let guard = lock_r!(FDOLL);
+    let active_doll_id = guard
+        .user_data
+        .user
+        .as_ref()
+        .and_then(|user| user.active_doll_id.as_deref())?;
+
+    guard
+        .user_data
+        .dolls
+        .as_ref()
+        .and_then(|dolls| dolls.iter().find(|doll| doll.id == active_doll_id))
+        .cloned()
+}
+
+pub fn get_active_doll_sprite_base64() -> Result<Option<String>, String> {
+    get_active_doll()
+        .map(|doll| {
+            let color_scheme = doll.configuration.color_scheme;
+            super::sprite_recolor::recolor_gif_base64(
+                &color_scheme.body,
+                &color_scheme.outline,
+                APPLY_TEXTURE,
+            )
+            .map_err(|err| err.to_string())
+        })
+        .transpose()
+}