feat: Add emoji and alot of other fixes

toju-app/src/app/domains/attachment/infrastructure/services/attachment-storage.service.ts

@@ -25,10 +25,46 @@ export class AttachmentStorageService {
     return !!electronApi?.readFileChunk && !!electronApi.getFileSize;
   }
 
+  canCopyFiles(): boolean {
+    const electronApi = this.electronBridge.getApi();
+
+    return !!electronApi?.copyFile && !!electronApi.ensureDir && !!electronApi.getAppDataPath;
+  }
+
   async resolveExistingPath(
     attachment: Pick<Attachment, 'filePath' | 'savedPath'>
   ): Promise<string | null> {
-    return this.findExistingPath([attachment.filePath, attachment.savedPath]);
+    return this.findExistingPath([attachment.savedPath, attachment.filePath]);
+  }
+
+  async resolveCanonicalStoredPath(
+    attachment: Pick<Attachment, 'id' | 'filename' | 'mime'>,
+    roomName: string
+  ): Promise<string | null> {
+    const appDataPath = await this.resolveAppDataPath();
+
+    if (!appDataPath) {
+      return null;
+    }
+
+    const directoryPath = this.resolveStorageDirectoryPath(appDataPath, roomName, attachment.mime);
+    const diskPath = `${directoryPath}/${resolveAttachmentStoredFilename(attachment.id, attachment.filename)}`;
+
+    return this.findExistingPath([diskPath]);
+  }
+
+  async copyFile(sourceFilePath: string, destinationFilePath: string): Promise<boolean> {
+    const electronApi = this.electronBridge.getApi();
+
+    if (!electronApi?.copyFile || !sourceFilePath || !destinationFilePath) {
+      return false;
+    }
+
+    try {
+      return await electronApi.copyFile(sourceFilePath, destinationFilePath);
+    } catch {
+      return false;
+    }
   }
 
   async resolveLegacyImagePath(filename: string, roomName: string): Promise<string | null> {