refactor: Remove legacy TopicView components

- Deleted obsolete TopicManager & TopicTreeDataProvider classes
- Cleaned up Topic related logic across several modules
- Replaced TopicManager usage with new methods after webview migration

src/contributes/commands.ts

@@ -5,8 +5,6 @@ import * as path from 'path';
 import * as util from 'util';
 import { sendFileSelectMessage, sendCodeSelectMessage } from './util';
 import { ExtensionContextHolder } from '../util/extensionContext';
-import { TopicManager } from '../topic/topicManager';
-import { TopicTreeDataProvider, TopicTreeItem } from '../panel/topicView';
 import { FilePairManager } from '../util/diffFilePairs';
 import { ApiKeyManager } from '../util/apiKey';
 import { UiUtilWrapper } from '../util/uiUtil';

src/contributes/views.ts

@@ -1,6 +1,5 @@
 import * as vscode from 'vscode';
 import { DevChatViewProvider } from '../panel/devchatView';
-import { TopicTreeDataProvider } from '../panel/topicView';
 import { ExtensionContextHolder } from '../util/extensionContext';
 
 

src/handler/historyMessagesBase.ts

@@ -1,10 +1,8 @@
 
 
-import { TopicManager } from '../topic/topicManager';
 import DevChat, { LogEntry, LogOptions } from '../toolwrapper/devchat';
 import messageHistory from '../util/messageHistory';
 import { ApiKeyManager } from '../util/apiKey';
-import { logger } from '../util/logger';
 
 let isApiSet: boolean | undefined = undefined;
 
@@ -80,18 +78,14 @@ export async function isWaitForApiKey() {
 
 export async function loadTopicHistoryLogs(topicId: string | undefined): Promise<Array<LogEntry> | undefined> {
 	if (!topicId) {
-		return [];
+		return undefined;
-	}
-	const topic = TopicManager.getInstance().getTopic(topicId);
-	if (!topic || !topic.firstMessageHash) {
-		return [];
 	}
 	
 	const devChat = new DevChat();
 	const logOptions: LogOptions = {
 		skip: 0,
 		maxCount: 10000,
-		topic: topic.firstMessageHash
+		topic: topicId
 	};
 	const logEntries = await devChat.log(logOptions);
 

src/handler/historyMessagesHandler.ts

@@ -2,8 +2,6 @@ import * as vscode from 'vscode';
 import { MessageHandler } from './messageHandler';
 import { regInMessage, regOutMessage } from '../util/reg_messages';
 import { historyMessagesBase, LoadHistoryMessages, loadTopicHistoryFromCurrentMessageHistory, onApiKeyBase } from './historyMessagesBase';
-import messageHistory from '../util/messageHistory';
-import { TopicManager } from '../topic/topicManager';
 import { UiUtilWrapper } from '../util/uiUtil';
 
 

src/handler/sendMessageBase.ts

@@ -1,7 +1,6 @@
 import DevChat, { ChatOptions, ChatResponse } from '../toolwrapper/devchat';
 import { logger } from '../util/logger';
 import messageHistory from '../util/messageHistory';
-import { TopicManager } from '../topic/topicManager';
 import { assertValue } from '../util/check';
 
 
@@ -228,8 +227,6 @@ export async function deleteChatMessageBase(message:{'hash': string}): Promise<b
 		// delete the message by devchat
 		const bSuccess = await devChat.delete(message.hash);
 		assertValue(!bSuccess, "Failed to delete message from devchat");
-
-		TopicManager.getInstance().deleteMessageOnCurrentTopic(message.hash);
 		return true;
 	} catch (error: any) {
 		logger.channel()?.error(`Error: ${error.message}`);

src/handler/topicHandler.ts

@@ -1,8 +1,29 @@
 import * as vscode from 'vscode';
-import { TopicManager } from '../topic/topicManager';
+import * as os from 'os';
+import * as path from 'path';
+import * as fs from 'fs';
 import { regInMessage, regOutMessage } from '../util/reg_messages';
 import { MessageHandler } from './messageHandler';
 import DevChat, { TopicEntry } from '../toolwrapper/devchat';
+import { UiUtilWrapper } from '../util/uiUtil';
+
+
+
+function isDeleteTopic(topicId: string) {
+    let workspaceDir = UiUtilWrapper.workspaceFoldersFirstPath();
+    if (!workspaceDir) {
+        workspaceDir = os.homedir();
+    }
+    const deletedTopicsPath = path.join(workspaceDir!, '.chat', '.deletedTopics');
+
+    if (!fs.existsSync(deletedTopicsPath)) {
+        return false;
+    }
+
+    const deletedTopics = fs.readFileSync(deletedTopicsPath, 'utf-8').split('\n');
+    // check whether topicId in deletedTopics
+    return deletedTopics.includes(topicId);
+}
 
 // 注册获取当前topic列表的命令
 regInMessage({ command: 'getTopics' });
@@ -13,7 +34,7 @@ export async function getTopics(message: any, panel: vscode.WebviewPanel | vscod
 
     let topicEntries: TopicEntry[] = [];
     for (const topicEntry of topicEntriesAll) {
-        if (TopicManager.getInstance().isDeleteTopic(topicEntry.root_prompt.hash)) {
+        if (isDeleteTopic(topicEntry.root_prompt.hash)) {
             continue;
         }
         // append topicEntry to topicEntries
@@ -26,5 +47,21 @@ export async function getTopics(message: any, panel: vscode.WebviewPanel | vscod
 // 注册删除topic的命令
 regInMessage({ command: 'deleteTopic', topicId: '' });
 export async function deleteTopic(message: any, panel: vscode.WebviewPanel | vscode.WebviewView): Promise<void> {
-    TopicManager.getInstance().deleteTopic(message.topicId);
+    const topicId = message.topicId;
+    let workspaceDir = UiUtilWrapper.workspaceFoldersFirstPath();
+    if (!workspaceDir) {
+        workspaceDir = os.homedir();
+    }
+    const deletedTopicsPath = path.join(workspaceDir!, '.chat', '.deletedTopics');
+
+    // read ${WORKSPACE_ROOT}/.chat/.deletedTopics as String[]
+    // add topicId to String[]
+    // write String[] to ${WORKSPACE_ROOT}/.chat/.deletedTopics
+    let deletedTopics: string[] = [];
+    
+    if (fs.existsSync(deletedTopicsPath)) {
+        deletedTopics = fs.readFileSync(deletedTopicsPath, 'utf-8').split('\n');
+    }
+    deletedTopics.push(topicId);
+    fs.writeFileSync(deletedTopicsPath, deletedTopics.join('\n'));
 }

src/panel/devchatView.ts

@@ -6,7 +6,6 @@ import '../handler/handlerRegister';
 import handleMessage from '../handler/messageHandler';
 import { createChatDirectoryAndCopyInstructionsSync } from '../init/chatConfig';
 import { ExtensionContextHolder } from '../util/extensionContext';
-import { TopicManager } from '../topic/topicManager';
 import { UiUtilWrapper } from '../util/uiUtil';
 import { ChatContextManager } from '../context/contextManager';
 

src/panel/statusBarViewBase.ts

@@ -3,9 +3,7 @@ import * as path from 'path';
 import { logger } from "../util/logger";
 
 import { UiUtilWrapper } from "../util/uiUtil";
-import { TopicManager } from "../topic/topicManager";
 import { ApiKeyManager } from '../util/apiKey';
-import { CommandRun } from '../util/commonUtil';
 import { installDevchat } from '../util/python_installer/install_devchat';
 
 
@@ -24,8 +22,6 @@ let apiKeyStatus = '';
 let preDevchatStatus = '';
 let preApiKeyStatus = '';
 
-let hasLoadTopics: boolean = false;
-
 export async function dependencyCheck(): Promise<[string, string]> {
 	// there are some different status of devchat:
 	// 0. not checked
@@ -93,15 +89,6 @@ export async function dependencyCheck(): Promise<[string, string]> {
 	const devchatPackageStatus = await getDevChatStatus();
 	const apiAccessKeyStatus = await getApiKeyStatus();
 
-	if (devchatPackageStatus === 'has statisfied the dependency' || devchatPackageStatus === 'DevChat has been installed') {
-		if (apiAccessKeyStatus === 'has valid access key') {
-			if (!hasLoadTopics) {
-				TopicManager.getInstance().loadTopics();
-			}
-			hasLoadTopics = true;
-		}
-	}
-
 	if (devchatPackageStatus !== preDevchatStatus) {
 		logger.channel()?.info(`devchat status: ${devchatPackageStatus}`);
 		preDevchatStatus = devchatPackageStatus;