feat(appearance): a gallery of shared presets, checked by digest

src-tauri/src/commands/mod.rs

@@ -28,6 +28,7 @@ pub mod open_in;
 #[cfg(feature = "tauri-runtime")]
 pub mod notification;
 pub mod pet;
+pub mod preset_gallery;
 pub mod project_boot;
 pub mod question;
 pub mod quick_messages;

src-tauri/src/commands/preset_gallery.rs

@@ -0,0 +1,56 @@
+//! Tauri + Axum command surface for the appearance preset gallery.
+//!
+//! Thin double-mode wrappers over `crate::preset_gallery`, which owns the URL
+//! policy, the byte caps and the digest check. Stateless (no DB / `AppState`),
+//! like the `background_market_*` trio in `commands::background`.
+
+use crate::app_error::AppCommandError;
+use crate::preset_gallery::{self, GalleryDocument};
+
+// ─── core ops ───────────────────────────────────────────────────────────
+
+pub async fn preset_gallery_fetch_index_core(
+    url: String,
+) -> Result<GalleryDocument, AppCommandError> {
+    preset_gallery::fetch_index(&url).await
+}
+
+pub async fn preset_gallery_fetch_preset_core(
+    url: String,
+    sha256: String,
+) -> Result<GalleryDocument, AppCommandError> {
+    preset_gallery::fetch_preset(&url, &sha256).await
+}
+
+// ─── web-handler param structs ──────────────────────────────────────────
+
+/// Web-mode JSON bodies for the `preset_gallery_*` commands. The Tauri commands
+/// take flat scalars (auto snake_case-translated on the way in); the Axum
+/// handlers need named structs to deserialize the same camelCase payload.
+#[derive(serde::Deserialize)]
+#[serde(rename_all = "camelCase")]
+pub struct PresetGalleryIndexParams {
+    pub url: String,
+}
+
+#[derive(serde::Deserialize)]
+#[serde(rename_all = "camelCase")]
+pub struct PresetGalleryPresetParams {
+    pub url: String,
+    pub sha256: String,
+}
+
+// ─── tauri command wrappers ─────────────────────────────────────────────
+
+#[cfg_attr(feature = "tauri-runtime", tauri::command)]
+pub async fn preset_gallery_fetch_index(url: String) -> Result<GalleryDocument, AppCommandError> {
+    preset_gallery_fetch_index_core(url).await
+}
+
+#[cfg_attr(feature = "tauri-runtime", tauri::command)]
+pub async fn preset_gallery_fetch_preset(
+    url: String,
+    sha256: String,
+) -> Result<GalleryDocument, AppCommandError> {
+    preset_gallery_fetch_preset_core(url, sha256).await
+}

src-tauri/src/lib.rs

@@ -37,6 +37,7 @@ pub mod pet_state_mapper;
 pub mod pets;
 #[cfg(feature = "tauri-runtime")]
 pub mod preferences;
+pub mod preset_gallery;
 pub mod process;
 pub mod supervise;
 mod terminal;
@@ -71,7 +72,8 @@ mod tauri_app {
         experts as experts_commands, feedback as feedback_commands, file_io, folder_commands,
         folder_links, office_tools as office_tools_commands, open_in,
         folders, logging as logging_commands, mcp as mcp_commands,
-        model_provider as model_provider_commands, notification, pet as pet_commands, project_boot,
+        model_provider as model_provider_commands, notification, pet as pet_commands,
+        preset_gallery as preset_gallery_commands, project_boot,
         question as question_commands, quick_messages as quick_messages_commands,
         remote_proxy as remote_proxy_commands,
         remote_workspace as remote_workspace_commands, science as science_commands,
@@ -1366,6 +1368,8 @@ mod tauri_app {
                 background_commands::background_market_search,
                 background_commands::background_market_asset,
                 background_commands::background_market_download,
+                preset_gallery_commands::preset_gallery_fetch_index,
+                preset_gallery_commands::preset_gallery_fetch_preset,
                 app_update_commands::app_update_state,
                 app_update_commands::perform_app_update,
                 app_update_commands::restart_app,