feat(library): Reactive library updating

Signed-off-by: quexeky <git@quexeky.dev>

components/Header.vue

@@ -11,7 +11,7 @@
               v-for="(nav, navIdx) in navigation"
               :class="[
                 'transition  uppercase font-display font-semibold text-md',
-                navIdx === currentPageIndex
+                navIdx === currentNavigation
                   ? 'text-zinc-100'
                   : 'text-zinc-400 hover:text-zinc-200',
               ]"
@@ -78,7 +78,7 @@ const navigation: Array<NavigationItem> = [
   },
 ];
 
-const currentPageIndex = useCurrentNavigationIndex(navigation);
+const {currentNavigation} = useCurrentNavigationIndex(navigation);
 
 const quickActions: Array<QuickActionNav> = [
   {

composables/current-page-engine.ts

@@ -26,5 +26,7 @@ export const useCurrentNavigationIndex = (
     currentNavigation.value = calculateCurrentNavIndex(to);
   });
 
-  return currentNavigation;
+  return {currentNavigation, recalculateNavigation: () => {
+    currentNavigation.value = calculateCurrentNavIndex(route);
+  }};
 };

pages/library.vue

@@ -1,28 +1,17 @@
 <template>
   <div class="flex flex-row h-full">
-    <div
-      class="flex-none max-h-full overflow-y-auto w-64 bg-zinc-950 px-2 py-1"
-    >
+    <div class="flex-none max-h-full overflow-y-auto w-64 bg-zinc-950 px-2 py-1">
       <ul class="flex flex-col gap-y-1">
-        <NuxtLink
-          v-for="(nav, navIdx) in navigation"
-          :key="nav.route"
-          :class="[
-            'transition-all duration-200 rounded-lg flex items-center py-1.5 px-3',
-            navIdx === currentNavigationIndex
-              ? 'bg-zinc-800 text-zinc-100'
-              : nav.isInstalled.value
+        <NuxtLink v-for="(nav, navIdx) in navigation" :key="nav.route" :class="[
+          'transition-all duration-200 rounded-lg flex items-center py-1.5 px-3',
+          navIdx === currentNavigation
+            ? 'bg-zinc-800 text-zinc-100'
+            : nav.isInstalled.value
               ? 'text-zinc-300 hover:bg-zinc-800/90 hover:text-zinc-200'
               : 'text-zinc-500 hover:bg-zinc-800/70 hover:text-zinc-300',
-          ]"
-          :href="nav.route"
-        >
+        ]" :href="nav.route">
           <div class="flex items-center w-full gap-x-3">
-            <img
-              class="size-6 flex-none object-cover bg-zinc-900 rounded"
-              :src="icons[navIdx]"
-              alt=""
-            />
+            <img class="size-6 flex-none object-cover bg-zinc-900 rounded" :src="icons[nav.id]" alt="" />
             <p class="truncate text-sm font-display leading-6 flex-1">
               {{ nav.label }}
             </p>
@@ -31,34 +20,47 @@
       </ul>
     </div>
     <div class="grow overflow-y-auto">
-      <NuxtPage :libraryDownloadError = "libraryDownloadError" />
+      <NuxtPage :libraryDownloadError="libraryDownloadError" />
     </div>
   </div>
 </template>
 
 <script setup lang="ts">
 import { invoke } from "@tauri-apps/api/core";
-import { GameStatusEnum, type Game, type NavigationItem } from "~/types";
+import { listen } from "@tauri-apps/api/event";
+import { GameStatusEnum, type Game, type GameStatus, type NavigationItem } from "~/types";
 
 let libraryDownloadError = false;
 
-async function calculateGames(): Promise<Game[]> {
+const games: { [key: string]: { game: Game, status: Ref<GameStatus, GameStatus> } } = {};
+const icons: { [key: string]: string } = {};
+
+const rawGames: Ref<Game[], Game[]> = ref([])
+
+async function calculateGames() {
   try {
-    return await invoke("fetch_library");
+    rawGames.value = await invoke("fetch_library");
+    for (const game of rawGames.value) {
+      if (games[game.id]) continue;
+      games[game.id] = await useGame(game.id);
+    }
+    for (const game of rawGames.value) {
+      if (icons[game.id]) continue;
+      icons[game.id] = await useObject(game.mIconId);
+    }
   }
-  catch(e) {
+  catch (e) {
+    console.log(e)
     libraryDownloadError = true;
     return new Array();
   }
 }
 
-const rawGames: Array<Game> = await calculateGames();
-const games = await Promise.all(rawGames.map((e) => useGame(e.id)));
-const icons = await Promise.all(
-  games.map(({ game, status }) => useObject(game.mIconId))
-);
+await calculateGames();
+
+const navigation = computed(() => rawGames.value.map((game) => {
+  const status = games[game.id].status;
 
-const navigation = games.map(({ game, status }) => {
   const isInstalled = computed(
     () =>
       status.value.type == GameStatusEnum.Installed ||
@@ -70,9 +72,18 @@ const navigation = games.map(({ game, status }) => {
     route: `/library/${game.id}`,
     prefix: `/library/${game.id}`,
     isInstalled,
+    id: game.id,
   };
   return item;
-});
+})
+);
+const { currentNavigation, recalculateNavigation } = useCurrentNavigationIndex(navigation.value);
+
+
+listen("update_library", async (event) => {
+  console.log("Updating library");
+  await calculateGames()
+  recalculateNavigation();
+})
 
-const currentNavigationIndex = useCurrentNavigationIndex(navigation);
 </script>

pages/settings.vue

@@ -10,13 +10,13 @@
         <ul role="list" class="-mx-2 space-y-1">
           <li v-for="(item, itemIdx) in navigation" :key="item.prefix">
             <NuxtLink :href="item.route" :class="[
-              itemIdx === currentPageIndex
+              itemIdx === currentNavigation
                 ? 'bg-zinc-800/50 text-zinc-100'
                 : 'text-zinc-400 hover:bg-zinc-800/30 hover:text-zinc-200',
               'transition group flex gap-x-3 rounded-md p-2 pr-12 text-sm font-semibold leading-6',
             ]">
               <component :is="item.icon" :class="[
-                itemIdx === currentPageIndex
+                itemIdx === currentNavigation
                   ? 'text-zinc-100'
                   : 'text-zinc-400 group-hover:text-zinc-200',
                 'transition h-6 w-6 shrink-0',
@@ -112,10 +112,10 @@ const navigation = computed(() => [
 const currentPlatform = platform();
 
 // Use .value to unwrap the computed ref
-const currentPageIndex = useCurrentNavigationIndex(navigation.value);
+const {currentNavigation} = useCurrentNavigationIndex(navigation.value);
 
 // Watch for navigation changes and update currentPageIndex
 watch(navigation, (newNav) => {
-  currentPageIndex.value = useCurrentNavigationIndex(newNav).value;
+  currentNavigation.value = useCurrentNavigationIndex(newNav).currentNavigation.value;
 });
 </script>

pages/settings/downloads.vue

@@ -1,9 +1,7 @@
 <template>
   <div>
     <div class="border-b border-zinc-600 py-2 px-1">
-      <div
-        class="-ml-4 -mt-2 flex flex-wrap items-center justify-between sm:flex-nowrap"
-      >
+      <div class="-ml-4 -mt-2 flex flex-wrap items-center justify-between sm:flex-nowrap">
         <div class="ml-4 mt-2">
           <h3 class="text-base font-display font-semibold text-zinc-100">
             Install directories
@@ -15,27 +13,17 @@
           </p>
         </div>
         <div class="ml-4 mt-2 shrink-0">
-          <button
-            @click="() => (open = true)"
-            type="button"
-            class="relative inline-flex items-center rounded-md bg-blue-600 px-3 py-2 text-sm font-semibold text-white shadow-sm hover:bg-blue-500 focus-visible:outline focus-visible:outline-2 focus-visible:outline-offset-2 focus-visible:outline-blue-600"
-          >
+          <button @click="() => (open = true)" type="button"
+            class="relative inline-flex items-center rounded-md bg-blue-600 px-3 py-2 text-sm font-semibold text-white shadow-sm hover:bg-blue-500 focus-visible:outline focus-visible:outline-2 focus-visible:outline-offset-2 focus-visible:outline-blue-600">
             Add new directory
           </button>
         </div>
       </div>
     </div>
     <ul role="list" class="divide-y divide-gray-800">
-      <li
-        v-for="(dir, dirIdx) in dirs"
-        :key="dir"
-        class="flex justify-between gap-x-6 py-5"
-      >
+      <li v-for="(dir, dirIdx) in dirs" :key="dir" class="flex justify-between gap-x-6 py-5">
         <div class="flex min-w-0 gap-x-4">
-          <FolderIcon
-            class="h-6 w-6 text-blue-600 flex-none rounded-full"
-            alt=""
-          />
+          <FolderIcon class="h-6 w-6 text-blue-600 flex-none rounded-full" alt="" />
           <div class="min-w-0 flex-auto">
             <p class="text-sm/6 text-zinc-100">
               {{ dir }}
@@ -43,16 +31,12 @@
           </div>
         </div>
         <div class="flex shrink-0 items-center gap-x-6">
-          <button
-            @click="() => deleteDirectory(dirIdx)"
-            :disabled="dirs.length <= 1"
-            :class="[
-              dirs.length <= 1
-                ? 'text-zinc-700'
-                : 'text-zinc-400 hover:text-zinc-100',
-              '-m-2.5 block p-2.5',
-            ]"
-          >
+          <button @click="() => deleteDirectory(dirIdx)" :disabled="dirs.length <= 1" :class="[
+            dirs.length <= 1
+              ? 'text-zinc-700'
+              : 'text-zinc-400 hover:text-zinc-100',
+            '-m-2.5 block p-2.5',
+          ]">
             <span class="sr-only">Open options</span>
             <TrashIcon class="size-5" aria-hidden="true" />
           </button>
@@ -72,37 +56,44 @@
           Maximum Download Threads
         </label>
         <div class="mt-2">
-          <input
-            type="number"
-            name="threads"
-            id="threads"
-            min="1"
-            max="32"
-            v-model="downloadThreads"
-            @keypress="validateNumberInput"
-            @paste="validatePaste"
-            class="block w-full rounded-md border-0 py-1.5 text-zinc-100 shadow-sm ring-1 ring-inset ring-zinc-700 bg-zinc-800 placeholder:text-gray-400 focus:ring-2 focus:ring-inset focus:ring-blue-600 sm:text-sm sm:leading-6"
-          />
+          <input type="number" name="threads" id="threads" min="1" max="32" v-model="downloadThreads"
+            @keypress="validateNumberInput" @paste="validatePaste"
+            class="block w-full rounded-md border-0 py-1.5 text-zinc-100 shadow-sm ring-1 ring-inset ring-zinc-700 bg-zinc-800 placeholder:text-gray-400 focus:ring-2 focus:ring-inset focus:ring-blue-600 sm:text-sm sm:leading-6" />
         </div>
         <p class="mt-2 text-sm text-zinc-400">
           The maximum number of concurrent download threads. Higher values may
           download faster but use more system resources. Default is 4.
         </p>
       </div>
+      <div class="mt-10 space-y-8">
+        <div class="flex flex-row items-center justify-between">
+          <div>
+            <h3 class="text-sm font-medium leading-6 text-zinc-100">Force Offline</h3>
+            <p class="mt-1 text-sm leading-6 text-zinc-400">
+              Drop will not make any external connections
+            </p>
+          </div>
+          <Switch v-model="forceOffline" :class="[
+            forceOffline ? 'bg-blue-600' : 'bg-zinc-700',
+            'relative inline-flex h-6 w-11 flex-shrink-0 cursor-pointer rounded-full border-2 border-transparent transition-colors duration-200 ease-in-out'
+          ]">
+            <span :class="[
+              forceOffline ? 'translate-x-5' : 'translate-x-0',
+              'pointer-events-none relative inline-block h-5 w-5 transform rounded-full bg-white shadow ring-0 transition duration-200 ease-in-out'
+            ]" />
+          </Switch>
+        </div>
+      </div>
+
 
       <div class="mt-6">
-        <button
-          type="button"
-          @click="saveDownloadThreads"
-          :disabled="saveState.loading"
-          :class="[
-            'inline-flex items-center rounded-md px-3 py-2 text-sm font-semibold text-white shadow-sm focus-visible:outline focus-visible:outline-2 focus-visible:outline-offset-2 transition-colors duration-300',
-            saveState.success 
-              ? 'bg-green-600 hover:bg-green-500 focus-visible:outline-green-600'
-              : 'bg-blue-600 hover:bg-blue-500 focus-visible:outline-blue-600',
-            'disabled:bg-blue-600/50 disabled:cursor-not-allowed'
-          ]"
-        >
+        <button type="button" @click="saveSettings" :disabled="saveState.loading" :class="[
+          'inline-flex items-center rounded-md px-3 py-2 text-sm font-semibold text-white shadow-sm focus-visible:outline focus-visible:outline-2 focus-visible:outline-offset-2 transition-colors duration-300',
+          saveState.success
+            ? 'bg-green-600 hover:bg-green-500 focus-visible:outline-green-600'
+            : 'bg-blue-600 hover:bg-blue-500 focus-visible:outline-blue-600',
+          'disabled:bg-blue-600/50 disabled:cursor-not-allowed'
+        ]">
           {{ saveState.success ? 'Saved' : 'Save Changes' }}
         </button>
       </div>
@@ -110,49 +101,27 @@
   </div>
   <TransitionRoot as="template" :show="open">
     <Dialog class="relative z-50" @close="open = false">
-      <TransitionChild
-        as="template"
-        enter="ease-out duration-300"
-        enter-from="opacity-0"
-        enter-to="opacity-100"
-        leave="ease-in duration-200"
-        leave-from="opacity-100"
-        leave-to="opacity-0"
-      >
-        <div
-          class="fixed inset-0 bg-zinc-950 bg-opacity-75 transition-opacity"
-        />
+      <TransitionChild as="template" enter="ease-out duration-300" enter-from="opacity-0" enter-to="opacity-100"
+        leave="ease-in duration-200" leave-from="opacity-100" leave-to="opacity-0">
+        <div class="fixed inset-0 bg-zinc-950 bg-opacity-75 transition-opacity" />
       </TransitionChild>
 
       <div class="fixed inset-0 z-10 w-screen overflow-y-auto">
-        <div
-          class="flex min-h-full items-end justify-center p-4 text-center sm:items-center sm:p-0"
-        >
-          <TransitionChild
-            as="template"
-            enter="ease-out duration-300"
+        <div class="flex min-h-full items-end justify-center p-4 text-center sm:items-center sm:p-0">
+          <TransitionChild as="template" enter="ease-out duration-300"
             enter-from="opacity-0 translate-y-4 sm:translate-y-0 sm:scale-95"
-            enter-to="opacity-100 translate-y-0 sm:scale-100"
-            leave="ease-in duration-200"
+            enter-to="opacity-100 translate-y-0 sm:scale-100" leave="ease-in duration-200"
             leave-from="opacity-100 translate-y-0 sm:scale-100"
-            leave-to="opacity-0 translate-y-4 sm:translate-y-0 sm:scale-95"
-          >
+            leave-to="opacity-0 translate-y-4 sm:translate-y-0 sm:scale-95">
             <DialogPanel
-              class="relative transform overflow-hidden rounded-lg bg-zinc-900 px-4 pb-4 pt-5 text-left shadow-xl transition-all sm:my-8 sm:w-full sm:max-w-lg sm:p-6"
-            >
+              class="relative transform overflow-hidden rounded-lg bg-zinc-900 px-4 pb-4 pt-5 text-left shadow-xl transition-all sm:my-8 sm:w-full sm:max-w-lg sm:p-6">
               <div class="sm:flex sm:items-start">
                 <div class="mt-3 w-full sm:ml-4 sm:mt-0">
                   <div>
-                    <label
-                      for="dir"
-                      class="block text-sm/6 font-medium text-zinc-100"
-                      >Select game directory</label
-                    >
+                    <label for="dir" class="block text-sm/6 font-medium text-zinc-100">Select game directory</label>
                     <div class="mt-2">
-                      <button
-                        @click="() => selectDirectory()"
-                        class="block text-left w-full rounded-md border-0 px-3 py-1.5 text-zinc-100 shadow-sm ring-1 ring-inset ring-zinc-700 bg-zinc-800 placeholder:text-gray-400 focus:ring-2 focus:ring-inset focus:ring-blue-600 sm:text-sm/6"
-                      >
+                      <button @click="() => selectDirectory()"
+                        class="block text-left w-full rounded-md border-0 px-3 py-1.5 text-zinc-100 shadow-sm ring-1 ring-inset ring-zinc-700 bg-zinc-800 placeholder:text-gray-400 focus:ring-2 focus:ring-inset focus:ring-blue-600 sm:text-sm/6">
                         {{
                           currentDirectory ?? "Click to select a directory..."
                         }}
@@ -165,36 +134,25 @@
                 </div>
               </div>
               <div class="mt-5 sm:mt-4 sm:flex sm:flex-row-reverse">
-                <LoadingButton
-                  :disabled="currentDirectory == undefined"
-                  type="button"
-                  :loading="createDirectoryLoading"
-                  @click="() => submitDirectory()"
-                  :class="[
+                <LoadingButton :disabled="currentDirectory == undefined" type="button" :loading="createDirectoryLoading"
+                  @click="() => submitDirectory()" :class="[
                     'inline-flex w-full shadow-sm sm:ml-3 sm:w-auto',
                     currentDirectory === undefined
                       ? 'text-zinc-400 bg-blue-600/10 hover:bg-blue-600/10'
                       : 'text-white bg-blue-600 hover:bg-blue-500',
-                  ]"
-                >
+                  ]">
                   Add
                 </LoadingButton>
-                <button
-                  type="button"
+                <button type="button"
                   class="mt-3 inline-flex w-full justify-center rounded-md bg-zinc-800 px-3 py-2 text-sm font-semibold text-zinc-100 shadow-sm ring-1 ring-inset ring-zinc-800 hover:bg-zinc-900 sm:mt-0 sm:w-auto"
-                  @click="() => cancelDirectory()"
-                  ref="cancelButtonRef"
-                >
+                  @click="() => cancelDirectory()" ref="cancelButtonRef">
                   Cancel
                 </button>
               </div>
               <div v-if="error" class="mt-3 rounded-md bg-red-600/10 p-4">
                 <div class="flex">
                   <div class="flex-shrink-0">
-                    <XCircleIcon
-                      class="h-5 w-5 text-red-600"
-                      aria-hidden="true"
-                    />
+                    <XCircleIcon class="h-5 w-5 text-red-600" aria-hidden="true" />
                   </div>
                   <div class="ml-3">
                     <h3 class="text-sm font-medium text-red-600">
@@ -220,6 +178,7 @@ import {
 } from "@headlessui/vue";
 import { FolderIcon, TrashIcon, XCircleIcon } from "@heroicons/vue/16/solid";
 import { invoke } from "@tauri-apps/api/core";
+import { Switch } from '@headlessui/vue'
 import { type Settings } from "~/types";
 
 const open = ref(false);
@@ -231,6 +190,7 @@ const dirs = ref<Array<string>>([]);
 
 const settings = await invoke<Settings>("fetch_settings");
 const downloadThreads = ref(settings?.maxDownloadThreads ?? 4);
+const forceOffline = ref(settings?.forceOffline ?? false);
 
 const saveState = reactive({
   loading: false,
@@ -293,21 +253,21 @@ async function deleteDirectory(index: number) {
   await updateDirs();
 }
 
-async function saveDownloadThreads() {
+async function saveSettings() {
   try {
     saveState.loading = true;
     await invoke("update_settings", {
-      newSettings: { maxDownloadThreads: downloadThreads.value },
+      newSettings: { maxDownloadThreads: downloadThreads.value, forceOffline: forceOffline.value },
     });
-    
+
     // Show success state
     saveState.success = true;
-    
+
     // Reset back to normal state after 2 seconds
     setTimeout(() => {
       saveState.success = false;
     }, 2000);
-    
+
   } catch (error) {
     console.error('Failed to save settings:', error);
   } finally {
@@ -317,8 +277,8 @@ async function saveDownloadThreads() {
 
 function validateNumberInput(event: KeyboardEvent) {
   // Allow only numbers and basic control keys
-  if (!/^\d$/.test(event.key) && 
-      !['Backspace', 'Delete', 'Tab', 'ArrowLeft', 'ArrowRight'].includes(event.key)) {
+  if (!/^\d$/.test(event.key) &&
+    !['Backspace', 'Delete', 'Tab', 'ArrowLeft', 'ArrowRight'].includes(event.key)) {
     event.preventDefault();
   }
 }

src-tauri/Cargo.toml

@@ -50,6 +50,11 @@ slice-deque = "0.3.0"
 throttle_my_fn = "0.2.6"
 parking_lot = "0.12.3"
 atomic-instant-full = "0.1.0"
+cacache = "13.1.0"
+bincode = "1.3.3"
+http-serde = "2.1.1"
+reqwest-middleware = "0.4.0"
+reqwest-middleware-cache = "0.1.1"
 
 [dependencies.tauri]
 version = "2.1.1"

src-tauri/src/database/commands.rs

@@ -74,7 +74,8 @@ pub fn update_settings(new_settings: Value) {
     }
     let new_settings: Settings = serde_json::from_value(current_settings).unwrap();
     db_lock.settings = new_settings;
-    println!("new Settings: {:?}", db_lock.settings);
+    drop(db_lock);
+    save_db();
 }
 #[tauri::command]
 pub fn fetch_settings() -> Settings {

src-tauri/src/database/db.rs

@@ -46,7 +46,7 @@ pub enum GameDownloadStatus {
 }
 
 // Stuff that shouldn't be synced to disk
-#[derive(Clone, Serialize)]
+#[derive(Clone, Serialize, Deserialize)]
 pub enum ApplicationTransientStatus {
     Downloading { version_name: String },
     Uninstalling {},
@@ -98,9 +98,10 @@ pub struct Database {
     pub base_url: String,
     pub applications: DatabaseApplications,
     pub prev_database: Option<PathBuf>,
+    pub cache_dir: PathBuf
 }
 impl Database {
-    fn new<T: Into<PathBuf>>(games_base_dir: T, prev_database: Option<PathBuf>) -> Self {
+    fn new<T: Into<PathBuf>>(games_base_dir: T, prev_database: Option<PathBuf>, cache_dir: PathBuf) -> Self {
         Self {
             applications: DatabaseApplications {
                 install_dirs: vec![games_base_dir.into()],
@@ -112,10 +113,8 @@ impl Database {
             prev_database,
             base_url: "".to_owned(),
             auth: None,
-            settings: Settings {
-                autostart: false,
-                max_download_threads: 4,
-            },
+            settings: Settings::default(),
+            cache_dir,
         }
     }
 }
@@ -150,21 +149,23 @@ impl DatabaseImpls for DatabaseInterface {
         let db_path = data_root_dir.join("drop.db");
         let games_base_dir = data_root_dir.join("games");
         let logs_root_dir = data_root_dir.join("logs");
+        let cache_dir = data_root_dir.join("cache");
 
         debug!("creating data directory at {:?}", data_root_dir);
         create_dir_all(data_root_dir.clone()).unwrap();
-        create_dir_all(games_base_dir.clone()).unwrap();
-        create_dir_all(logs_root_dir.clone()).unwrap();
+        create_dir_all(&games_base_dir).unwrap();
+        create_dir_all(&logs_root_dir).unwrap();
+        create_dir_all(&cache_dir).unwrap();
 
         let exists = fs::exists(db_path.clone()).unwrap();
 
         match exists {
             true => match PathDatabase::load_from_path(db_path.clone()) {
                 Ok(db) => db,
-                Err(e) => handle_invalid_database(e, db_path, games_base_dir),
+                Err(e) => handle_invalid_database(e, db_path, games_base_dir, cache_dir),
             },
             false => {
-                let default = Database::new(games_base_dir, None);
+                let default = Database::new(games_base_dir, None, cache_dir);
                 debug!(
                     "Creating database at path {}",
                     db_path.as_os_str().to_str().unwrap()
@@ -204,6 +205,7 @@ fn handle_invalid_database(
     _e: RustbreakError,
     db_path: PathBuf,
     games_base_dir: PathBuf,
+    cache_dir: PathBuf
 ) -> rustbreak::Database<Database, rustbreak::backend::PathBackend, DropDatabaseSerializer> {
     let new_path = {
         let time = Utc::now().timestamp();
@@ -220,6 +222,7 @@ fn handle_invalid_database(
     let db = Database::new(
         games_base_dir.into_os_string().into_string().unwrap(),
         Some(new_path),
+        cache_dir
     );
 
     PathDatabase::create_at_path(db_path, db).expect("Database could not be created")

src-tauri/src/database/settings.rs

@@ -5,6 +5,7 @@ use serde::{Deserialize, Serialize};
 pub struct Settings {
     pub autostart: bool,
     pub max_download_threads: usize,
+    pub force_offline: bool
     // ... other settings ...
 }
 impl Default for Settings {
@@ -12,6 +13,7 @@ impl Default for Settings {
         Self {
             autostart: false,
             max_download_threads: 4,
+            force_offline: false
         }
     }
 }

src-tauri/src/download_manager/download_manager.rs

@@ -48,7 +48,7 @@ pub enum DownloadManagerSignal {
     Uninstall(DownloadableMetadata),
 }
 
-#[derive(Debug, Clone)]
+#[derive(Debug)]
 pub enum DownloadManagerStatus {
     Downloading,
     Paused,

src-tauri/src/download_manager/download_manager_builder.rs

@@ -255,7 +255,7 @@ impl DownloadManagerBuilder {
                 }
                 Err(e) => {
                     error!("download {:?} has error {}", download_agent.metadata(), &e);
-                    download_agent.on_error(&app_handle, e.clone());
+                    download_agent.on_error(&app_handle, &e);
                     sender.send(DownloadManagerSignal::Error(e)).unwrap();
                 }
             }
@@ -287,7 +287,7 @@ impl DownloadManagerBuilder {
     fn manage_error_signal(&mut self, error: ApplicationDownloadError) {
         debug!("got signal Error");
         if let Some(current_agent) = self.current_download_agent.clone() {
-            current_agent.on_error(&self.app_handle, error.clone());
+            current_agent.on_error(&self.app_handle, &error);
 
             self.stop_and_wait_current_download();
             self.remove_and_cleanup_front_download(&current_agent.metadata());

src-tauri/src/download_manager/downloadable.rs

@@ -16,7 +16,7 @@ pub trait Downloadable: Send + Sync {
     fn status(&self) -> DownloadStatus;
     fn metadata(&self) -> DownloadableMetadata;
     fn on_initialised(&self, app_handle: &AppHandle);
-    fn on_error(&self, app_handle: &AppHandle, error: ApplicationDownloadError);
+    fn on_error(&self, app_handle: &AppHandle, error: &ApplicationDownloadError);
     fn on_complete(&self, app_handle: &AppHandle);
     fn on_incomplete(&self, app_handle: &AppHandle);
     fn on_cancelled(&self, app_handle: &AppHandle);

src-tauri/src/error/application_download_error.rs

@@ -8,7 +8,7 @@ use serde_with::SerializeDisplay;
 use super::{remote_access_error::RemoteAccessError, setup_error::SetupError};
 
 // TODO: Rename / separate from downloads
-#[derive(Debug, Clone, SerializeDisplay)]
+#[derive(Debug, SerializeDisplay)]
 pub enum ApplicationDownloadError {
     Communication(RemoteAccessError),
     Checksum,

src-tauri/src/error/remote_access_error.rs

@@ -10,7 +10,7 @@ use url::ParseError;
 
 use super::drop_server_error::DropServerError;
 
-#[derive(Debug, Clone, SerializeDisplay)]
+#[derive(Debug, SerializeDisplay)]
 pub enum RemoteAccessError {
     FetchError(Arc<reqwest::Error>),
     ParsingError(ParseError),
@@ -21,6 +21,7 @@ pub enum RemoteAccessError {
     InvalidRedirect,
     ManifestDownloadFailed(StatusCode, String),
     OutOfSync,
+    Cache(cacache::Error),
     Generic(String),
 }
 
@@ -52,6 +53,7 @@ impl Display for RemoteAccessError {
             ),
             RemoteAccessError::OutOfSync => write!(f, "server's and client's time are out of sync. Please ensure they are within at least 30 seconds of each other"),
             RemoteAccessError::Generic(message) => write!(f, "{}", message),
+            RemoteAccessError::Cache(error) => write!(f, "Cache Error: {}", error),
         }
     }
 }

src-tauri/src/games/commands.rs

@@ -1,9 +1,9 @@
 use std::sync::Mutex;
 
-use tauri::AppHandle;
+use tauri::{AppHandle, Manager};
 
 use crate::{
-    database::db::GameVersion, error::{library_error::LibraryError, remote_access_error::RemoteAccessError}, games::library::{get_current_meta, uninstall_game_logic}, AppState
+    database::db::GameVersion, error::{library_error::LibraryError, remote_access_error::RemoteAccessError}, games::library::{fetch_game_logic_offline, fetch_library_logic_offline, get_current_meta, uninstall_game_logic}, offline, AppState
 };
 
 use super::{
@@ -15,16 +15,16 @@ use super::{
 };
 
 #[tauri::command]
-pub fn fetch_library(app: AppHandle) -> Result<Vec<Game>, RemoteAccessError> {
-    fetch_library_logic(app)
+pub fn fetch_library(state: tauri::State<'_, Mutex<AppState>>) -> Result<Vec<Game>, RemoteAccessError> {
+    offline!(state, fetch_library_logic, fetch_library_logic_offline, state)
 }
 
 #[tauri::command]
 pub fn fetch_game(
     game_id: String,
-    app: tauri::AppHandle,
+    state: tauri::State<'_, Mutex<AppState>>
 ) -> Result<FetchGameStruct, RemoteAccessError> {
-    fetch_game_logic(game_id, app)
+    offline!(state, fetch_game_logic, fetch_game_logic_offline, game_id, state)
 }
 
 #[tauri::command]
@@ -38,7 +38,6 @@ pub fn uninstall_game(game_id: String, app_handle: AppHandle) -> Result<(), Libr
         Some(data) => data,
         None => return Err(LibraryError::MetaNotFound(game_id)),
     };
-    println!("{:?}", meta);
     uninstall_game_logic(meta, &app_handle);
 
     Ok(())

src-tauri/src/games/downloads/download_agent.rs

@@ -135,7 +135,7 @@ impl GameDownloadAgent {
             &[("id", &self.id), ("version", &self.version)],
             |f| f.header("Authorization", header),
         )
-        .map_err(|e| ApplicationDownloadError::Communication(e))?
+        .map_err(ApplicationDownloadError::Communication)?
         .send()
         .map_err(|e| ApplicationDownloadError::Communication(e.into()))?;
 
@@ -280,9 +280,13 @@ impl GameDownloadAgent {
                 ) {
                     Ok(request) => request,
                     Err(e) => {
-                        sender.send(DownloadManagerSignal::Error(ApplicationDownloadError::Communication(e))).unwrap();
+                        sender
+                            .send(DownloadManagerSignal::Error(
+                                ApplicationDownloadError::Communication(e),
+                            ))
+                            .unwrap();
                         continue;
-                    },
+                    }
                 };
 
                 scope.spawn(move |_| {
@@ -362,7 +366,7 @@ impl Downloadable for GameDownloadAgent {
         *self.status.lock().unwrap() = DownloadStatus::Queued;
     }
 
-    fn on_error(&self, app_handle: &tauri::AppHandle, error: ApplicationDownloadError) {
+    fn on_error(&self, app_handle: &tauri::AppHandle, error: &ApplicationDownloadError) {
         *self.status.lock().unwrap() = DownloadStatus::Error;
         app_handle
             .emit("download_error", error.to_string())

src-tauri/src/games/library.rs

@@ -14,16 +14,17 @@ use crate::download_manager::downloadable_metadata::DownloadableMetadata;
 use crate::error::remote_access_error::RemoteAccessError;
 use crate::games::state::{GameStatusManager, GameStatusWithTransient};
 use crate::remote::auth::generate_authorization_header;
+use crate::remote::cache::{cache_object, get_cached_object};
 use crate::remote::requests::make_request;
 use crate::AppState;
 
-#[derive(serde::Serialize)]
+#[derive(Serialize, Deserialize)]
 pub struct FetchGameStruct {
     game: Game,
     status: GameStatusWithTransient,
 }
 
-#[derive(Serialize, Deserialize, Clone)]
+#[derive(Serialize, Deserialize, Clone, Debug)]
 #[serde(rename_all = "camelCase")]
 pub struct Game {
     id: String,
@@ -66,7 +67,9 @@ pub struct StatsUpdateEvent {
     pub time: usize,
 }
 
-pub fn fetch_library_logic(app: AppHandle) -> Result<Vec<Game>, RemoteAccessError> {
+pub fn fetch_library_logic(
+    state: tauri::State<'_, Mutex<AppState>>,
+) -> Result<Vec<Game>, RemoteAccessError> {
     let header = generate_authorization_header();
 
     let client = reqwest::blocking::Client::new();
@@ -83,7 +86,6 @@ pub fn fetch_library_logic(app: AppHandle) -> Result<Vec<Game>, RemoteAccessErro
 
     let games: Vec<Game> = response.json()?;
 
-    let state = app.state::<Mutex<AppState>>();
     let mut handle = state.lock().unwrap();
 
     let mut db_handle = borrow_db_mut_checked();
@@ -97,17 +99,32 @@ pub fn fetch_library_logic(app: AppHandle) -> Result<Vec<Game>, RemoteAccessErro
                 .insert(game.id.clone(), GameDownloadStatus::Remote {});
         }
     }
-
     drop(handle);
+    drop(db_handle);
+    cache_object("library", &games)?;
 
     Ok(games)
 }
+pub fn fetch_library_logic_offline(
+    _state: tauri::State<'_, Mutex<AppState>>,
+) -> Result<Vec<Game>, RemoteAccessError> {
+    let mut games: Vec<Game> = get_cached_object("library")?;
 
+    let db_handle = borrow_db_checked();
+
+    games.retain(|game| {
+        db_handle
+            .applications
+            .installed_game_version
+            .contains_key(&game.id)
+    });
+
+    Ok(games)
+}
 pub fn fetch_game_logic(
     id: String,
-    app: tauri::AppHandle,
+    state: tauri::State<'_, Mutex<AppState>>,
 ) -> Result<FetchGameStruct, RemoteAccessError> {
-    let state = app.state::<Mutex<AppState>>();
     let mut state_handle = state.lock().unwrap();
 
     let game = state_handle.games.get(&id);
@@ -119,6 +136,8 @@ pub fn fetch_game_logic(
             status,
         };
 
+        cache_object(id, &data)?;
+
         return Ok(data);
     }
     let client = reqwest::blocking::Client::new();
@@ -155,9 +174,18 @@ pub fn fetch_game_logic(
         status,
     };
 
+    cache_object(id, &data)?;
+
     Ok(data)
 }
 
+pub fn fetch_game_logic_offline(
+    id: String,
+    _state: tauri::State<'_, Mutex<AppState>>,
+) -> Result<FetchGameStruct, RemoteAccessError> {
+    get_cached_object::<String, FetchGameStruct>(id)
+}
+
 pub fn fetch_game_verion_options_logic(
     game_id: String,
     state: tauri::State<'_, Mutex<AppState>>,
@@ -193,7 +221,7 @@ pub fn fetch_game_verion_options_logic(
 }
 
 pub fn uninstall_game_logic(meta: DownloadableMetadata, app_handle: &AppHandle) {
-    println!("triggered uninstall for agent");
+    debug!("triggered uninstall for agent");
     let mut db_handle = borrow_db_mut_checked();
     db_handle
         .applications
@@ -213,6 +241,7 @@ pub fn uninstall_game_logic(meta: DownloadableMetadata, app_handle: &AppHandle)
         return;
     }
     let previous_state = previous_state.unwrap();
+
     if let Some((_, install_dir)) = match previous_state {
         GameDownloadStatus::Installed {
             version_name,
@@ -229,6 +258,7 @@ pub fn uninstall_game_logic(meta: DownloadableMetadata, app_handle: &AppHandle)
             .transient_statuses
             .entry(meta.clone())
             .and_modify(|v| *v = ApplicationTransientStatus::Uninstalling {});
+
         drop(db_handle);
 
         let app_handle = app_handle.clone();
@@ -239,6 +269,10 @@ pub fn uninstall_game_logic(meta: DownloadableMetadata, app_handle: &AppHandle)
             Ok(_) => {
                 let mut db_handle = borrow_db_mut_checked();
                 db_handle.applications.transient_statuses.remove(&meta);
+                db_handle
+                    .applications
+                    .installed_game_version
+                    .remove(&meta.id);
                 db_handle
                     .applications
                     .game_statuses
@@ -248,6 +282,7 @@ pub fn uninstall_game_logic(meta: DownloadableMetadata, app_handle: &AppHandle)
                 save_db();
 
                 debug!("uninstalled game id {}", &meta.id);
+                app_handle.emit("update_library", {}).unwrap();
 
                 push_game_update(
                     &app_handle,

src-tauri/src/lib.rs

@@ -40,11 +40,13 @@ use log4rs::encode::pattern::PatternEncoder;
 use log4rs::Config;
 use process::commands::{kill_game, launch_game};
 use process::process_manager::ProcessManager;
-use remote::auth::{self, generate_authorization_header, recieve_handshake};
+use remote::auth::{self, recieve_handshake};
 use remote::commands::{
-    auth_initiate, gen_drop_url, manual_recieve_handshake, retry_connect, sign_out, use_remote,
+    auth_initiate, fetch_drop_object, gen_drop_url, manual_recieve_handshake, retry_connect, sign_out, use_remote
 };
+use remote::fetch_object::{fetch_object, fetch_object_offline};
 use remote::requests::make_request;
+use reqwest::blocking::Body;
 use serde::{Deserialize, Serialize};
 use std::env;
 use std::path::Path;
@@ -60,9 +62,10 @@ use tauri::{AppHandle, Manager, RunEvent, WindowEvent};
 use tauri_plugin_deep_link::DeepLinkExt;
 use tauri_plugin_dialog::DialogExt;
 
-#[derive(Clone, Copy, Serialize)]
+#[derive(Clone, Copy, Serialize, Eq, PartialEq)]
 pub enum AppStatus {
     NotConfigured,
+    Offline,
     ServerError,
     SignedOut,
     SignedIn,
@@ -236,6 +239,7 @@ pub fn run() {
             // Remote
             use_remote,
             gen_drop_url,
+            fetch_drop_object,
             // Library
             fetch_library,
             fetch_game,
@@ -327,7 +331,7 @@ pub fn run() {
                     }
 
                     _ => {
-                        println!("menu event not handled: {:?}", event.id);
+                        warn!("menu event not handled: {:?}", event.id);
                     }
                 })
                 .build(app)
@@ -356,35 +360,9 @@ pub fn run() {
 
             Ok(())
         })
-        .register_asynchronous_uri_scheme_protocol("object", move |_ctx, request, responder| {
-            // Drop leading /
-            let object_id = &request.uri().path()[1..];
-
-            let header = generate_authorization_header();
-            let client: reqwest::blocking::Client = reqwest::blocking::Client::new();
-            let response = make_request(&client, &["/api/v1/client/object/", object_id], &[], |f| {
-                f.header("Authorization", header)
-            })
-            .unwrap()
-            .send();
-            if response.is_err() {
-                warn!(
-                    "failed to fetch object with error: {}",
-                    response.err().unwrap()
-                );
-                responder.respond(Response::builder().status(500).body(Vec::new()).unwrap());
-                return;
-            }
-            let response = response.unwrap();
-
-            let resp_builder = ResponseBuilder::new().header(
-                CONTENT_TYPE,
-                response.headers().get("Content-Type").unwrap(),
-            );
-            let data = Vec::from(response.bytes().unwrap());
-            let resp = resp_builder.body(data).unwrap();
-
-            responder.respond(resp);
+        .register_asynchronous_uri_scheme_protocol("object", move |ctx, request, responder| {
+            let state: tauri::State<'_, Mutex<AppState>> = ctx.app_handle().state();
+            offline!(state, fetch_object, fetch_object_offline, request, responder);
         })
         .on_window_event(|window, event| {
             if let WindowEvent::CloseRequested { api, .. } = event {

src-tauri/src/process/process_manager.rs

@@ -372,7 +372,7 @@ impl ProcessHandler for UMULauncher {
         _log_file: File,
         _error_file: File,
     ) -> Result<Child, Error> {
-        println!("Game override: .{:?}.", &game_version.umu_id_override);
+        debug!("Game override: \"{:?}\"", &game_version.umu_id_override);
         let game_id = match &game_version.umu_id_override {
             Some(game_override) => game_override.is_empty().then_some(game_version.game_id.clone()).unwrap_or(game_override.clone()) ,
             None => game_version.game_id.clone()

src-tauri/src/remote/auth.rs

@@ -191,7 +191,7 @@ pub fn setup() -> (AppStatus, Option<User>) {
     if auth.is_some() {
         let user_result = match fetch_user() {
             Ok(data) => data,
-            Err(RemoteAccessError::FetchError(_)) => return (AppStatus::ServerUnavailable, None),
+            Err(RemoteAccessError::FetchError(_)) => return (AppStatus::Offline, None),
             Err(_) => return (AppStatus::SignedInNeedsReauth, None),
         };
         return (AppStatus::SignedIn, Some(user_result));

src-tauri/src/remote/cache.rs

@@ -0,0 +1,63 @@
+use crate::{database::db::borrow_db_checked, error::remote_access_error::RemoteAccessError};
+use cacache::Integrity;
+use http::{header::CONTENT_TYPE, response::Builder as ResponseBuilder, Response};
+use serde::{de::DeserializeOwned, Deserialize, Serialize};
+use tauri::{UriSchemeContext, UriSchemeResponder};
+
+use super::{auth::generate_authorization_header, requests::make_request};
+
+#[macro_export]
+macro_rules! offline {
+    ($var:expr, $func1:expr, $func2:expr, $( $arg:expr ),* ) => {
+
+        if crate::borrow_db_checked().settings.force_offline || $var.lock().unwrap().status == crate::AppStatus::Offline {
+            $func2( $( $arg ), *)
+        } else {
+            $func1( $( $arg ), *)
+        }
+    }
+}
+
+pub fn cache_object<'a, K: AsRef<str>, D: Serialize + DeserializeOwned>(
+    key: K,
+    data: &D,
+) -> Result<Integrity, RemoteAccessError> {
+    let bytes = serde_json::to_vec(data).unwrap();
+    cacache::write_sync(&borrow_db_checked().cache_dir, key, bytes)
+        .map_err(|e| RemoteAccessError::Cache(e))
+}
+pub fn get_cached_object<'a, K: AsRef<str>, D: Serialize + DeserializeOwned>(
+    key: K,
+) -> Result<D, RemoteAccessError> {
+    let bytes = cacache::read_sync(&borrow_db_checked().cache_dir, key)
+        .map_err(|e| RemoteAccessError::Cache(e))?;
+    let data = serde_json::from_slice::<D>(&bytes).unwrap();
+    Ok(data)
+}
+
+#[derive(Serialize, Deserialize)]
+pub struct ObjectCache {
+    content_type: String,
+    body: Vec<u8>,
+}
+
+impl From<Response<Vec<u8>>> for ObjectCache {
+    fn from(value: Response<Vec<u8>>) -> Self {
+        ObjectCache {
+            content_type: value
+                .headers()
+                .get(CONTENT_TYPE)
+                .unwrap()
+                .to_str()
+                .unwrap()
+                .to_owned(),
+            body: value.body().clone(),
+        }
+    }
+}
+impl From<ObjectCache> for Response<Vec<u8>> {
+    fn from(value: ObjectCache) -> Self {
+        let resp_builder = ResponseBuilder::new().header(CONTENT_TYPE, value.content_type);
+        resp_builder.body(value.body).unwrap()
+    }
+}

src-tauri/src/remote/commands.rs

@@ -1,17 +1,16 @@
 use std::sync::Mutex;
 
+use log::debug;
+use reqwest::blocking::Client;
 use tauri::{AppHandle, Emitter, Manager};
 use url::Url;
 
 use crate::{
-    database::db::{borrow_db_checked, borrow_db_mut_checked, save_db},
-    error::remote_access_error::RemoteAccessError,
-    AppState, AppStatus,
+    database::db::{borrow_db_checked, borrow_db_mut_checked, save_db}, error::remote_access_error::RemoteAccessError, remote::{auth::generate_authorization_header, requests::make_request}, AppState, AppStatus
 };
 
 use super::{
-    auth::{auth_initiate_logic, recieve_handshake, setup},
-    remote::use_remote_logic,
+    auth::{auth_initiate_logic, recieve_handshake, setup}, cache::{cache_object, get_cached_object}, remote::use_remote_logic
 };
 
 #[tauri::command]
@@ -35,6 +34,28 @@ pub fn gen_drop_url(path: String) -> Result<String, RemoteAccessError> {
     Ok(url.to_string())
 }
 
+#[tauri::command]
+pub fn fetch_drop_object(path: String) -> Result<Vec<u8>, RemoteAccessError> {
+    let drop_url = gen_drop_url(path.clone());
+    let req = make_request(
+        &Client::new(), 
+        &[&path],
+        &[], 
+        |r| { r.header("Authorization", generate_authorization_header()) }
+    )?.send();
+
+    match req {
+        Ok(data) => {
+            let data = data.bytes()?.to_vec();
+            cache_object(&path, &data)?;
+            Ok(data)
+        },
+        Err(e) => {
+            debug!("{}", e);
+            get_cached_object::<&str, Vec<u8>>(&path)
+        },
+    }
+}
 #[tauri::command]
 pub fn sign_out(app: AppHandle) {
     // Clear auth from database

src-tauri/src/remote/fetch_object.rs

@@ -0,0 +1,55 @@
+use http::{header::CONTENT_TYPE, response::Builder as ResponseBuilder};
+use log::warn;
+use tauri::UriSchemeResponder;
+
+use super::{auth::generate_authorization_header, cache::{cache_object, get_cached_object, ObjectCache}, requests::make_request};
+
+pub fn fetch_object(
+    request: http::Request<Vec<u8>>,
+    responder: UriSchemeResponder,
+) {
+    // Drop leading /
+    let object_id = &request.uri().path()[1..];
+
+    let header = generate_authorization_header();
+    let client: reqwest::blocking::Client = reqwest::blocking::Client::new();
+    let response = make_request(&client, &["/api/v1/client/object/", object_id], &[], |f| {
+        f.header("Authorization", header)
+    })
+    .unwrap()
+    .send();
+    if response.is_err() {
+        let data = get_cached_object::<&str, ObjectCache>(object_id);
+
+        match data {
+            Ok(data) => responder.respond(data.into()),
+            Err(e) => {
+                warn!("{}", e)
+            },
+        }
+        return;
+    }
+    let response = response.unwrap();
+
+    let resp_builder = ResponseBuilder::new().header(
+        CONTENT_TYPE,
+        response.headers().get("Content-Type").unwrap(),
+    );
+    let data = Vec::from(response.bytes().unwrap());
+    let resp = resp_builder.body(data).unwrap();
+    cache_object::<&str, ObjectCache>(object_id, &resp.clone().into()).unwrap();
+
+    responder.respond(resp);
+}
+pub fn fetch_object_offline(
+    request: http::Request<Vec<u8>>,
+    responder: UriSchemeResponder,
+) {
+    let object_id = &request.uri().path()[1..];
+    let data = get_cached_object::<&str, ObjectCache>(object_id);
+
+    match data {
+        Ok(data) => responder.respond(data.into()),
+        Err(e) => warn!("{}", e),
+    }
+}

src-tauri/src/remote/mod.rs

@@ -1,4 +1,7 @@
 pub mod auth;
+#[macro_use]
+pub mod cache;
 pub mod commands;
+pub mod fetch_object;
 pub mod remote;
 pub mod requests;

types.ts

@@ -38,6 +38,7 @@ export type Game = {
 
 export enum AppStatus {
   NotConfigured = "NotConfigured",
+  Offline = "Offline",
   SignedOut = "SignedOut",
   SignedIn = "SignedIn",
   SignedInNeedsReauth = "SignedInNeedsReauth",
@@ -76,4 +77,5 @@ export type DownloadableMetadata = {
 export type Settings = {
   autostart: boolean,
   maxDownloadThreads: number,
+  forceOffline: boolean
 }