Add more file operations

plugin/src/file-operations/file-operations.ts

@@ -1,8 +1,12 @@
 import { RelativePath } from "src/database/document-metadata";
 
 export interface FileOperations {
+	listAllFiles(): Promise<RelativePath[]>;
+
 	read(path: RelativePath): Promise<Uint8Array>;
 
+	getModificationTime(path: RelativePath): Promise<Date>;
+
 	create(path: RelativePath, newContent: Uint8Array): Promise<void>;
 
 	// Writes new content to the file at the given path. If the file's content has changed since the expectedContent was read, the write will merge the changes.

plugin/src/file-operations/obsidian-file-operations.ts

@@ -7,12 +7,23 @@ import { RelativePath } from "src/database/document-metadata";
 export class ObsidianFileOperations implements FileOperations {
 	public constructor(private vault: Vault) {}
 
+	async listAllFiles(): Promise<RelativePath[]> {
+		const files = this.vault.getFiles();
+		return files.map((file) => file.path);
+	}
+
 	async read(path: RelativePath): Promise<Uint8Array> {
 		return new Uint8Array(
 			await this.vault.adapter.readBinary(normalizePath(path))
 		);
 	}
 
+	async getModificationTime(path: RelativePath): Promise<Date> {
+		return new Date(
+			(await this.vault.adapter.stat(normalizePath(path)))!.mtime
+		);
+	}
+
 	async write(
 		path: RelativePath,
 		expectedContent: Uint8Array,