fix: lifecycle check

edge case:
 - There may be plugins that don't have a start or stop function

src/loader/main.ts

@@ -55,18 +55,24 @@ export const forceUnloadMainPlugin = async (
         ctx: 'backend',
         context: createContext(id, win),
       });
-      if (!hasStopped) {
+      if (
+        hasStopped ||
+        (
+          hasStopped === null &&
+          typeof plugin.backend !== 'function' && plugin.backend
+        )
+      ) {
+        delete loadedPluginMap[id];
+        console.log('[YTMusic]', `"${id}" plugin is unloaded`);
+        resolve();
+      } else {
         console.log(
           '[YTMusic]',
-          `Cannot unload "${id}" plugin: no stop function`,
+          `Cannot unload "${id}" plugin`,
         );
         reject();
         return;
       }
-
-      delete loadedPluginMap[id];
-      console.log('[YTMusic]', `"${id}" plugin is unloaded`);
-      resolve();
     } catch (err) {
       console.log('[YTMusic]', `Cannot unload "${id}" plugin: ${String(err)}`);
       reject(err);
@@ -87,14 +93,20 @@ export const forceLoadMainPlugin = async (
         ctx: 'backend',
         context: createContext(id, win),
       });
-      if (!hasStarted) {
+      if (
-        console.log('[YTMusic]', `Cannot load "${id}" plugin`);
+        hasStarted ||
-        reject();
+        (
-        return;
+          hasStarted === null &&
+          typeof plugin.backend !== 'function' && plugin.backend
+        )
+      ) {
+        loadedPluginMap[id] = plugin;
+        resolve();
       }
 
-      loadedPluginMap[id] = plugin;
+      console.log('[YTMusic]', `Cannot load "${id}" plugin`);
-      resolve();
+      reject();
+      return;
     } catch (err) {
       console.error(
         '[YTMusic]',

src/loader/preload.ts

@@ -21,11 +21,18 @@ export const forceUnloadPreloadPlugin = (id: string) => {
     ctx: 'preload',
     context: createContext(id),
   });
-  if (!hasStopped) {
+  if (
-    console.log('[YTMusic]', `Cannot stop "${id}" plugin`);
+    hasStopped ||
-    return;
+    (
+      hasStopped === null &&
+      typeof loadedPluginMap[id].preload !== 'function' && loadedPluginMap[id].preload
+    )
+  ) {
+    console.log('[YTMusic]', `"${id}" plugin is unloaded`);
+    delete loadedPluginMap[id];
+  } else {
+    console.error('[YTMusic]', `Cannot stop "${id}" plugin`);
   }
-  console.log('[YTMusic]', `"${id}" plugin is unloaded`);
 };
 
 export const forceLoadPreloadPlugin = (id: string) => {
@@ -38,7 +45,15 @@ export const forceLoadPreloadPlugin = (id: string) => {
       context: createContext(id),
     });
 
-    if (hasStarted) loadedPluginMap[id] = plugin;
+    if (
+      hasStarted ||
+      (
+        hasStarted === null &&
+        typeof plugin.preload !== 'function' && plugin.preload
+      )
+    ) {
+      loadedPluginMap[id] = plugin;
+    }
 
     console.log('[YTMusic]', `"${id}" plugin is loaded`);
   } catch (err) {

src/loader/renderer.ts

@@ -40,11 +40,21 @@ export const forceUnloadRendererPlugin = (id: string) => {
   const plugin = rendererPlugins[id];
   if (!plugin) return;
 
-  stopPlugin(id, plugin, { ctx: 'renderer', context: createContext(id) });
+  const hasStopped = stopPlugin(id, plugin, { ctx: 'renderer', context: createContext(id) });
-  if (plugin?.stylesheets)
+  if (plugin?.stylesheets) {
     document.querySelector(`style#plugin-${id}`)?.remove();
-
+  }
-  console.log('[YTMusic]', `"${id}" plugin is unloaded`);
+  if (
+    hasStopped ||
+    (
+      hasStopped === null &&
+      typeof plugin?.renderer !== 'function' && plugin?.renderer
+    )
+  ) {
+    console.log('[YTMusic]', `"${id}" plugin is unloaded`);
+  } else {
+    console.error('[YTMusic]', `Cannot stop "${id}" plugin`);
+  }
 };
 
 export const forceLoadRendererPlugin = (id: string) => {
@@ -56,7 +66,14 @@ export const forceLoadRendererPlugin = (id: string) => {
     context: createContext(id),
   });
 
-  if (hasEvaled || plugin?.stylesheets) {
+  if (
+    hasEvaled ||
+    plugin?.stylesheets ||
+    (
+      hasEvaled === null &&
+      typeof plugin?.renderer !== 'function' && plugin?.renderer
+    )
+  ) {
     loadedPluginMap[id] = plugin;
 
     if (plugin?.stylesheets) {
@@ -70,7 +87,7 @@ export const forceLoadRendererPlugin = (id: string) => {
       document.adoptedStyleSheets = [...document.adoptedStyleSheets, ...styleSheetList];
     }
 
-    if (!hasEvaled) console.log('[YTMusic]', `"${id}" plugin is loaded`);
+    console.log('[YTMusic]', `"${id}" plugin is loaded`);
   } else {
     console.log('[YTMusic]', `Cannot initialize "${id}" plugin`);
   }

src/utils/index.ts

@@ -38,7 +38,7 @@ export const startPlugin = <Config extends PluginConfig>(id: string, def: Plugin
       ? def[options.ctx] as PluginLifecycleSimple<Config, unknown>
       : (def[options.ctx] as PluginLifecycleExtra<Config, typeof options.context, unknown>)?.start;
 
-  if (!lifecycle) return false;
+  if (!lifecycle) return null;
 
   try {
     const defContext = def[options.ctx];
@@ -57,17 +57,18 @@ export const startPlugin = <Config extends PluginConfig>(id: string, def: Plugin
 
     return true;
   } catch (err) {
-    console.log(`[YTM] Failed to start ${id}::${options.ctx}: ${String(err)}`);
+    console.error(`[YTM] Failed to start ${id}::${options.ctx}`);
+    console.trace(err);
     return false;
   }
 };
 
 export const stopPlugin = <Config extends PluginConfig>(id: string, def: PluginDef<unknown, unknown, unknown, Config>, options: Options<Config>) => {
-  if (!def[options.ctx]) return false;
+  if (!def || !def[options.ctx]) return false;
   if (typeof def[options.ctx] === 'function') return false;
 
   const stop = def[options.ctx] as PluginLifecycleSimple<Config, unknown>;
-  if (!stop) return false;
+  if (!stop) return null;
 
   try {
     const start = performance.now();
@@ -77,9 +78,10 @@ export const stopPlugin = <Config extends PluginConfig>(id: string, def: PluginD
 
     return true;
   } catch (err) {
-    console.log(
+    console.error(
-      `[YTM] Failed to execute ${id}::${options.ctx}: ${String(err)}`,
+      `[YTM] Failed to execute ${id}::${options.ctx}`,
     );
+    console.trace(err);
     return false;
   }
 };