Feat: Import & Export Store + Update Trigger

src-tauri/src/lib.rs

@@ -405,17 +405,14 @@ fn resolve_server_binary(
 
     #[cfg(target_os = "macos")]
     {
-        // Root of Moku.app/Contents/ — scan every subdirectory level by level.
         let resource_dir = app.path().resource_dir().unwrap_or_default();
         let contents_dir = resource_dir
-            .parent()                          // Moku.app/Contents/
+            .parent()
             .unwrap_or(&resource_dir)
             .to_path_buf();
 
         do_log(log, &format!("[resolve] macOS contents_dir = {:?}", contents_dir));
 
-        // Native-binary names we recognise (most specific first so arch-specific
-        // names win over the generic "suwayomi-server" if both somehow exist).
         const NATIVE_NAMES: &[&str] = &[
             "suwayomi-server-aarch64-apple-darwin",
             "suwayomi-server-x86_64-apple-darwin",
@@ -425,11 +422,8 @@ fn resolve_server_binary(
             "tachidesk-server",
         ];
 
-        // Collect every directory inside Contents/, grouped by depth so we
-        // search shallower levels first (BFS order via WalkDir min/max_depth).
-        // We go up to depth 8 which is more than enough for any real bundle.
         let mut found_binary: Option<ServerInvocation> = None;
-        let mut found_java:   Option<(PathBuf, PathBuf)> = None; // (java_exe, jar)
+        let mut found_java:   Option<(PathBuf, PathBuf)> = None;
 
         'outer: for depth in 0u8..=8 {
             let entries: Vec<PathBuf> = WalkDir::new(&contents_dir)
@@ -444,7 +438,6 @@ fn resolve_server_binary(
             for dir in &entries {
                 do_log(log, &format!("[resolve] scanning depth={} dir={:?}", depth, dir));
 
-                // 1. Look for a native server binary in this directory.
                 for name in NATIVE_NAMES {
                     let p = dir.join(name);
                     if p.exists() {
@@ -458,15 +451,10 @@ fn resolve_server_binary(
                     }
                 }
 
-                // 2. Look for a JRE java binary paired with a .jar in the same
-                //    or sibling directories.  We record the first hit and keep
-                //    scanning natives; if no native is ever found we fall back
-                //    to this.
                 if found_java.is_none() {
                     let java_exe = dir.join("bin").join("java");
                     if java_exe.exists() {
                         do_log(log, &format!("[resolve] found java: {:?}", java_exe));
-                        // Search upward from the JRE dir for a .jar file.
                         let mut search = dir.as_path();
                         'jar: for _ in 0..5 {
                             if let Ok(rd) = std::fs::read_dir(search) {
@@ -479,7 +467,6 @@ fn resolve_server_binary(
                                     }
                                 }
                             }
-                            // Also look in a sibling `bin/` directory.
                             let bin_sibling = search.join("bin");
                             if let Ok(rd) = std::fs::read_dir(&bin_sibling) {
                                 for entry in rd.filter_map(|e| e.ok()) {
@@ -648,7 +635,6 @@ async fn download_and_install_update(app: tauri::AppHandle, tag: String) -> Resu
             .build()
             .map_err(|e| e.to_string())?;
 
-        // Fetch the specific release by tag to get its asset list.
         let url = format!("https://api.github.com/repos/Youwes09/Moku/releases/tags/{}", tag);
         let resp = client.get(&url).send().await.map_err(|e| e.to_string())?;
         if !resp.status().is_success() {
@@ -668,7 +654,6 @@ async fn download_and_install_update(app: tauri::AppHandle, tag: String) -> Resu
             .find(|a| a.name.ends_with("_x64-setup.exe"))
             .ok_or_else(|| format!("No x64-setup.exe asset found in release {}", tag))?;
 
-        // Stream download with progress events.
         let total = if asset.size > 0 { Some(asset.size) } else { None };
         let mut resp = client.get(&asset.browser_download_url).send().await.map_err(|e| e.to_string())?;
 
@@ -683,7 +668,6 @@ async fn download_and_install_update(app: tauri::AppHandle, tag: String) -> Resu
         }
         drop(file);
 
-        // Launch the NSIS installer silently without a visible cmd window.
         use std::os::windows::process::CommandExt;
         const CREATE_NO_WINDOW: u32 = 0x08000000;
         std::process::Command::new(&tmp_path)
@@ -731,7 +715,6 @@ fn open_path(path: String) -> Result<(), String> {
     Ok(())
 }
 
-
 #[tauri::command]
 async fn pick_downloads_folder(app: tauri::AppHandle) -> Option<String> {
     use tauri_plugin_dialog::DialogExt;
@@ -742,6 +725,83 @@ async fn pick_downloads_folder(app: tauri::AppHandle) -> Option<String> {
         .map(|p| p.to_string())
 }
 
+fn moku_backup_dir(app: &tauri::AppHandle) -> PathBuf {
+    app.path().app_data_dir()
+        .unwrap_or_else(|_| PathBuf::from("."))
+        .join("backups")
+}
+
+#[tauri::command]
+async fn export_app_data(app: tauri::AppHandle, json: String) -> Result<String, String> {
+    use tauri_plugin_dialog::DialogExt;
+
+    let now = std::time::SystemTime::now()
+        .duration_since(std::time::UNIX_EPOCH)
+        .unwrap_or_default()
+        .as_secs();
+    let filename = format!("moku-backup-{}.json", now);
+
+    let path = app.dialog()
+        .file()
+        .set_title("Save Moku app data backup")
+        .set_file_name(&filename)
+        .blocking_save_file()
+        .ok_or("Cancelled")?;
+
+    let dest = PathBuf::from(path.to_string());
+    std::fs::write(&dest, json.as_bytes()).map_err(|e| e.to_string())?;
+
+    Ok(dest.to_string_lossy().into_owned())
+}
+
+#[tauri::command]
+async fn import_app_data(app: tauri::AppHandle) -> Result<String, String> {
+    use tauri_plugin_dialog::DialogExt;
+
+    let path = app.dialog()
+        .file()
+        .set_title("Open Moku app data backup")
+        .blocking_pick_file()
+        .ok_or("Cancelled")?;
+
+    let src = PathBuf::from(path.to_string());
+    let contents = std::fs::read_to_string(&src).map_err(|e| e.to_string())?;
+
+    Ok(contents)
+}
+
+#[tauri::command]
+fn auto_backup_app_data(app: tauri::AppHandle, json: String) -> Result<(), String> {
+    let backup_dir = moku_backup_dir(&app);
+    std::fs::create_dir_all(&backup_dir).map_err(|e| e.to_string())?;
+
+    let now = std::time::SystemTime::now()
+        .duration_since(std::time::UNIX_EPOCH)
+        .unwrap_or_default()
+        .as_secs();
+    let dest = backup_dir.join(format!("auto-moku-backup-{}.json", now));
+    std::fs::write(&dest, json.as_bytes()).map_err(|e| e.to_string())?;
+
+    let mut entries: Vec<_> = std::fs::read_dir(&backup_dir)
+        .map_err(|e| e.to_string())?
+        .filter_map(|e| e.ok())
+        .filter(|e| e.file_name().to_string_lossy().starts_with("auto-moku-backup-"))
+        .collect();
+
+    entries.sort_by_key(|e| e.file_name());
+
+    for old in entries.iter().take(entries.len().saturating_sub(5)) {
+        let _ = std::fs::remove_file(old.path());
+    }
+
+    Ok(())
+}
+
+#[tauri::command]
+fn get_auto_backup_dir(app: tauri::AppHandle) -> String {
+    moku_backup_dir(&app).to_string_lossy().into_owned()
+}
+
 #[cfg_attr(mobile, tauri::mobile_entry_point)]
 pub fn run() {
     tauri::Builder::default()
@@ -766,6 +826,10 @@ pub fn run() {
             restart_app,
             open_path,
             pick_downloads_folder,
+            export_app_data,
+            import_app_data,
+            auto_backup_app_data,
+            get_auto_backup_dir,
         ])
         .setup(|_app| Ok(()))
         .on_window_event(|window, event| {

src/core/backup.ts

@@ -0,0 +1,38 @@
+import { invoke } from "@tauri-apps/api/core";
+
+function collectAppData(): Record<string, string> {
+  const data: Record<string, string> = {};
+  for (let i = 0; i < localStorage.length; i++) {
+    const key = localStorage.key(i);
+    if (key !== null) data[key] = localStorage.getItem(key) ?? "";
+  }
+  return data;
+}
+
+function applyAppData(data: Record<string, string>): void {
+  localStorage.clear();
+  for (const [key, value] of Object.entries(data)) {
+    localStorage.setItem(key, value);
+  }
+}
+
+export async function exportAppData(): Promise<void> {
+  const json = JSON.stringify(collectAppData(), null, 2);
+  await invoke("export_app_data", { json });
+}
+
+export async function importAppData(): Promise<void> {
+  const json = await invoke<string>("import_app_data");
+  const data: Record<string, string> = JSON.parse(json);
+  applyAppData(data);
+  location.reload();
+}
+
+export async function autoBackupAppData(): Promise<void> {
+  try {
+    const json = JSON.stringify(collectAppData());
+    await invoke("auto_backup_app_data", { json });
+  } catch (e) {
+    console.warn("[moku] auto-backup failed:", e);
+  }
+}

src/features/settings/sections/AboutSettings.svelte

@@ -3,6 +3,7 @@
   import { listen } from "@tauri-apps/api/event";
   import { getVersion } from "@tauri-apps/api/app";
   import { open as openUrl } from "@tauri-apps/plugin-shell";
+  import { autoBackupAppData } from "@core/backup";
 
   interface ReleaseInfo { tag_name: string; name: string; body: string; published_at: string; html_url: string; }
   type UpdatePhase = "idle" | "downloading" | "launching" | "ready" | "error";
@@ -87,6 +88,7 @@
     targetTag = release.tag_name; updatePhase = "downloading"; updateError = null; dlBytes = 0; dlTotal = null;
     try {
       if (IS_WINDOWS) {
+        await autoBackupAppData();
         try { await invoke("kill_server"); } catch {}
         await invoke("download_and_install_update", { tag: release.tag_name });
         updatePhase = "ready";

src/features/settings/sections/StorageSettings.svelte

@@ -8,6 +8,7 @@
   import { SET_DOWNLOADS_PATH, SET_LOCAL_SOURCE_PATH } from "@api/mutations/downloads";
   import { untrack } from "svelte";
   import { store, updateSettings, addToast } from "@store/state.svelte";
+  import { exportAppData, importAppData } from "@core/backup";
 
   interface StorageInfo { manga_bytes: number; total_bytes: number; free_bytes: number; path: string; }
 
@@ -52,8 +53,9 @@
   let extraScanDirs    = $state<string[]>([...(store.settings.extraScanDirs ?? [])]);
   let newScanDir       = $state("");
   let multiStorageInfos = $state<(StorageInfo & { label: string })[]>([]);
-  let advStorageOpen   = $state(false);
-  let backupSectionOpen = $state(false);
+  let advStorageOpen      = $state(false);
+  let backupSectionOpen   = $state(false);
+  let appDataSectionOpen  = $state(false);
 
   async function fetchStorage() {
     storageLoading = true; storageError = null;
@@ -324,6 +326,39 @@
     finally { validateLoading = false; }
   }
 
+  let appDataExporting  = $state(false);
+  let appDataImporting  = $state(false);
+  let appDataError      = $state<string | null>(null);
+  let appDataMsg        = $state<string | null>(null);
+  let appDataBackupDir  = $state<string | null>(null);
+
+  $effect(() => {
+    invoke<string>("get_auto_backup_dir").then(d => { appDataBackupDir = d; }).catch(() => {});
+  });
+
+  async function handleExportAppData() {
+    appDataExporting = true; appDataError = null; appDataMsg = null;
+    try {
+      await exportAppData();
+      appDataMsg = "Backup saved.";
+      setTimeout(() => appDataMsg = null, 3000);
+    } catch (e: any) {
+      if (String(e).includes("Cancelled")) return;
+      appDataError = e?.message ?? String(e);
+    } finally { appDataExporting = false; }
+  }
+
+  async function handleImportAppData() {
+    appDataImporting = true; appDataError = null; appDataMsg = null;
+    try {
+      await importAppData();
+    } catch (e: any) {
+      if (String(e).includes("Cancelled")) { appDataImporting = false; return; }
+      appDataError = e?.message ?? String(e);
+      appDataImporting = false;
+    }
+  }
+
   $effect(() => { untrack(() => { loadBackupList(); fetchStorage(); }); });
   $effect(() => { return () => stopRestorePoll(); });
 </script>
@@ -512,7 +547,6 @@
             {#if !isExternalServer}
               <button class="s-btn" onclick={browseExtraScanDir}>Browse</button>
             {/if}
-
           </div>
         </div>
 
@@ -638,4 +672,56 @@
     {/if}
   </div>
 
+  <div class="s-section">
+    <button class="s-collapsible-trigger" onclick={() => appDataSectionOpen = !appDataSectionOpen}>
+      <span class="s-label">App-Data Backup</span>
+      <svg class="s-collapsible-caret" class:open={appDataSectionOpen} width="10" height="6" viewBox="0 0 10 6"><path d="M0 0l5 6 5-6" fill="currentColor"/></svg>
+    </button>
+    {#if appDataSectionOpen}
+      <div class="s-collapsible-body">
+
+        <div class="s-row">
+          <div class="s-row-info">
+            <span class="s-label">Export settings</span>
+            <span class="s-desc">Save all Moku app settings to a JSON file via a native save dialog.</span>
+          </div>
+          <button class="s-btn s-btn-accent" onclick={handleExportAppData} disabled={appDataExporting}>
+            {appDataExporting ? "Saving…" : "Export"}
+          </button>
+        </div>
+
+        <div class="s-row">
+          <div class="s-row-info">
+            <span class="s-label">Import settings</span>
+            <span class="s-desc">Restore from a previously exported JSON file. Reloads the app immediately.</span>
+          </div>
+          <button class="s-btn" onclick={handleImportAppData} disabled={appDataImporting}>
+            {appDataImporting ? "Importing…" : "Import"}
+          </button>
+        </div>
+
+        {#if appDataError}
+          <div class="s-banner s-banner-error">{appDataError}</div>
+        {/if}
+
+        {#if appDataMsg}
+          <div class="s-row">
+            <span class="s-desc" style="color:var(--color-success,#4caf50)">{appDataMsg}</span>
+          </div>
+        {/if}
+
+        {#if appDataBackupDir}
+          <div class="s-row">
+            <div class="s-row-info">
+              <span class="s-label">Auto-backup location</span>
+              <span class="s-desc">Pre-update snapshots are kept here (last 5).</span>
+            </div>
+            <button class="s-btn" onclick={() => invoke("open_path", { path: appDataBackupDir })}>Open folder</button>
+          </div>
+        {/if}
+
+      </div>
+    {/if}
+  </div>
+
 </div>