feat(settings): persist tags and fragment types via Tauri settings

Journal.App/src-tauri/src/lib.rs

@@ -1,5 +1,6 @@
 use serde::{Deserialize, Serialize};
 use serde_json::Value;
+use std::collections::HashSet;
 use std::env;
 use std::fs;
 use std::path::{Path, PathBuf};
@@ -25,10 +26,62 @@ struct CommandEnvelope {
     payload: Option<Value>,
 }
 
-#[derive(Deserialize, Serialize, Default)]
+const DEFAULT_SETTINGS_TAGS: &[&str] = &["Personal", "Work", "Ideas", "Journal"];
+const DEFAULT_FRAGMENT_TYPES: &[&str] = &["Quote", "Snippet", "Reference"];
+
+#[derive(Deserialize, Serialize)]
 struct AppSettings {
     #[serde(default, skip_serializing_if = "Option::is_none")]
     sidecar_root: Option<String>,
+    #[serde(default = "default_settings_tags")]
+    tags: Vec<String>,
+    #[serde(default = "default_fragment_types")]
+    fragment_types: Vec<String>,
+}
+
+impl Default for AppSettings {
+    fn default() -> Self {
+        Self {
+            sidecar_root: None,
+            tags: default_settings_tags(),
+            fragment_types: default_fragment_types(),
+        }
+    }
+}
+
+fn default_settings_tags() -> Vec<String> {
+    DEFAULT_SETTINGS_TAGS
+        .iter()
+        .map(|v| (*v).to_string())
+        .collect()
+}
+
+fn default_fragment_types() -> Vec<String> {
+    DEFAULT_FRAGMENT_TYPES
+        .iter()
+        .map(|v| (*v).to_string())
+        .collect()
+}
+
+fn normalize_items(values: Vec<String>, fallback: &[&str]) -> Vec<String> {
+    let mut seen = HashSet::new();
+    let mut normalized = Vec::new();
+    for item in values {
+        let trimmed = item.trim();
+        if trimmed.is_empty() {
+            continue;
+        }
+        let key = trimmed.to_lowercase();
+        if seen.insert(key) {
+            normalized.push(trimmed.to_string());
+        }
+    }
+
+    if normalized.is_empty() {
+        return fallback.iter().map(|v| (*v).to_string()).collect();
+    }
+
+    normalized
 }
 
 struct ManagedSidecar {
@@ -295,12 +348,9 @@ async fn set_sidecar_root(
     let is_custom = new_override.is_some();
     *state.root_override.lock().await = new_override.clone();
 
-    save_settings(
-        &state.config_path,
-        &AppSettings {
-            sidecar_root: new_override.map(|p| p.to_string_lossy().into_owned()),
-        },
-    )?;
+    let mut settings = load_settings(&state.config_path);
+    settings.sidecar_root = new_override.map(|p| p.to_string_lossy().into_owned());
+    save_settings(&state.config_path, &settings)?;
 
     Ok(serde_json::json!({
         "root": root.to_string_lossy(),
@@ -308,6 +358,35 @@ async fn set_sidecar_root(
     }))
 }
 
+#[tauri::command]
+async fn get_ui_settings(state: tauri::State<'_, SidecarState>) -> Result<Value, String> {
+    let settings = load_settings(&state.config_path);
+    let tags = normalize_items(settings.tags, DEFAULT_SETTINGS_TAGS);
+    let fragment_types = normalize_items(settings.fragment_types, DEFAULT_FRAGMENT_TYPES);
+
+    Ok(serde_json::json!({
+        "tags": tags,
+        "fragmentTypes": fragment_types
+    }))
+}
+
+#[tauri::command]
+async fn set_ui_settings(
+    state: tauri::State<'_, SidecarState>,
+    tags: Vec<String>,
+    fragment_types: Vec<String>,
+) -> Result<Value, String> {
+    let mut settings = load_settings(&state.config_path);
+    settings.tags = normalize_items(tags, DEFAULT_SETTINGS_TAGS);
+    settings.fragment_types = normalize_items(fragment_types, DEFAULT_FRAGMENT_TYPES);
+    save_settings(&state.config_path, &settings)?;
+
+    Ok(serde_json::json!({
+        "tags": settings.tags,
+        "fragmentTypes": settings.fragment_types
+    }))
+}
+
 #[tauri::command]
 async fn shutdown(
     state: tauri::State<'_, SidecarState>,
@@ -343,6 +422,8 @@ pub fn run() {
             shutdown,
             get_sidecar_root,
             set_sidecar_root,
+            get_ui_settings,
+            set_ui_settings,
         ])
         .setup(|app| {
             let config_dir = app.path().app_config_dir()?;

Journal.App/src/lib/stores/settings.ts

@@ -1,8 +1,20 @@
 import { writable } from "svelte/store";
 import { get } from "svelte/store";
+import { invoke } from "@tauri-apps/api/core";
 
-export const settingsTags = writable<string[]>(["Personal", "Work", "Ideas", "Journal"]);
-export const settingsFragmentTypes = writable<string[]>(["Quote", "Snippet", "Reference"]);
+const defaultTags = ["Personal", "Work", "Ideas", "Journal"];
+const defaultFragmentTypes = ["Quote", "Snippet", "Reference"];
+
+export const settingsTags = writable<string[]>([...defaultTags]);
+export const settingsFragmentTypes = writable<string[]>([...defaultFragmentTypes]);
+
+let hydrationComplete = false;
+let hydrating = false;
+
+type UiSettingsPayload = {
+  tags?: string[];
+  fragmentTypes?: string[];
+};
 
 function normalize(value: string): string {
   return value.trim().toLowerCase();
@@ -13,12 +25,62 @@ function hasDuplicate(values: string[], candidate: string, excludeIndex?: number
   return values.some((value, index) => index !== excludeIndex && normalize(value) === normalized);
 }
 
+function normalizeValues(values: string[], fallback: string[]): string[] {
+  const seen = new Set<string>();
+  const result: string[] = [];
+  for (const value of values) {
+    const trimmed = value.trim();
+    if (!trimmed) continue;
+    const key = normalize(trimmed);
+    if (seen.has(key)) continue;
+    seen.add(key);
+    result.push(trimmed);
+  }
+  return result.length ? result : [...fallback];
+}
+
+export async function hydrateUiSettings(): Promise<void> {
+  if (hydrating || hydrationComplete) return;
+  hydrating = true;
+  try {
+    const payload = await invoke<UiSettingsPayload>("get_ui_settings");
+    settingsTags.set(normalizeValues(payload.tags ?? [], defaultTags));
+    settingsFragmentTypes.set(normalizeValues(payload.fragmentTypes ?? [], defaultFragmentTypes));
+  } catch (error) {
+    console.error("[settings] hydrate failed", error);
+  } finally {
+    hydrating = false;
+    hydrationComplete = true;
+  }
+}
+
+export async function persistUiSettings(): Promise<void> {
+  const tags = normalizeValues(get(settingsTags), defaultTags);
+  const fragmentTypes = normalizeValues(get(settingsFragmentTypes), defaultFragmentTypes);
+  settingsTags.set(tags);
+  settingsFragmentTypes.set(fragmentTypes);
+
+  await invoke("set_ui_settings", {
+    tags,
+    fragmentTypes,
+    fragment_types: fragmentTypes
+  });
+}
+
+function queuePersist(): void {
+  if (!hydrationComplete || hydrating) return;
+  void persistUiSettings().catch((error) => {
+    console.error("[settings] persist failed", error);
+  });
+}
+
 export function addSettingsTag(value: string): boolean {
   const next = value.trim();
   if (!next) return false;
   const tags = get(settingsTags);
   if (hasDuplicate(tags, next)) return false;
   settingsTags.set([...tags, next]);
+  queuePersist();
   return true;
 }
 
@@ -29,6 +91,7 @@ export function updateSettingsTag(index: number, value: string): boolean {
   if (index < 0 || index >= tags.length) return false;
   if (hasDuplicate(tags, next, index)) return false;
   settingsTags.set(tags.map((tag, idx) => (idx === index ? next : tag)));
+  queuePersist();
   return true;
 }
 
@@ -36,6 +99,7 @@ export function removeSettingsTag(index: number): boolean {
   const tags = get(settingsTags);
   if (index < 0 || index >= tags.length) return false;
   settingsTags.set(tags.filter((_, idx) => idx !== index));
+  queuePersist();
   return true;
 }
 
@@ -45,6 +109,7 @@ export function addFragmentType(value: string): boolean {
   const types = get(settingsFragmentTypes);
   if (hasDuplicate(types, next)) return false;
   settingsFragmentTypes.set([...types, next]);
+  queuePersist();
   return true;
 }
 
@@ -55,6 +120,7 @@ export function updateFragmentType(index: number, value: string): boolean {
   if (index < 0 || index >= types.length) return false;
   if (hasDuplicate(types, next, index)) return false;
   settingsFragmentTypes.set(types.map((type, idx) => (idx === index ? next : type)));
+  queuePersist();
   return true;
 }
 
@@ -62,5 +128,6 @@ export function removeFragmentType(index: number): boolean {
   const types = get(settingsFragmentTypes);
   if (index < 0 || index >= types.length) return false;
   settingsFragmentTypes.set(types.filter((_, idx) => idx !== index));
+  queuePersist();
   return true;
 }

Journal.App/src/routes/+layout.svelte

@@ -4,10 +4,13 @@
   import { onMount } from "svelte";
   import { getSessionPassword, clearVaultSession, flushBeforeClose } from "$lib/stores/session";
   import { persistAndClearVault } from "$lib/backend/auth";
+  import { hydrateUiSettings } from "$lib/stores/settings";
 
   let closeInProgress = false;
 
   onMount(() => {
+    void hydrateUiSettings();
+
     const appWindow = getCurrentWindow();
     const unlistenPromise = appWindow.onCloseRequested(async (event) => {
       if (closeInProgress) return;