Add a button to delete user messages

src/core/Cline.ts

@@ -70,7 +70,7 @@ export class Cline {
 	diffStrategy?: DiffStrategy
 	diffEnabled: boolean = false
 
-	apiConversationHistory: Anthropic.MessageParam[] = []
+	apiConversationHistory: (Anthropic.MessageParam & { ts?: number })[] = []
 	clineMessages: ClineMessage[] = []
 	private askResponse?: ClineAskResponse
 	private askResponseText?: string
@@ -165,11 +165,12 @@ export class Cline {
 	}
 
 	private async addToApiConversationHistory(message: Anthropic.MessageParam) {
-		this.apiConversationHistory.push(message)
+		const messageWithTs = { ...message, ts: Date.now() }
+		this.apiConversationHistory.push(messageWithTs)
 		await this.saveApiConversationHistory()
 	}
 
-	private async overwriteApiConversationHistory(newHistory: Anthropic.MessageParam[]) {
+	async overwriteApiConversationHistory(newHistory: Anthropic.MessageParam[]) {
 		this.apiConversationHistory = newHistory
 		await this.saveApiConversationHistory()
 	}
@@ -205,7 +206,7 @@ export class Cline {
 		await this.saveClineMessages()
 	}
 
-	private async overwriteClineMessages(newMessages: ClineMessage[]) {
+	public async overwriteClineMessages(newMessages: ClineMessage[]) {
 		this.clineMessages = newMessages
 		await this.saveClineMessages()
 	}
@@ -460,6 +461,11 @@ export class Cline {
 		await this.overwriteClineMessages(modifiedClineMessages)
 		this.clineMessages = await this.getSavedClineMessages()
 
+		// need to make sure that the api conversation history can be resumed by the api, even if it goes out of sync with cline messages
+
+		let existingApiConversationHistory: Anthropic.Messages.MessageParam[] =
+		await this.getSavedApiConversationHistory()
+
 		// Now present the cline messages to the user and ask if they want to resume
 
 		const lastClineMessage = this.clineMessages
@@ -493,11 +499,6 @@ export class Cline {
 			responseImages = images
 		}
 
-		// need to make sure that the api conversation history can be resumed by the api, even if it goes out of sync with cline messages
-
-		let existingApiConversationHistory: Anthropic.Messages.MessageParam[] =
-			await this.getSavedApiConversationHistory()
-
 		// v2.0 xml tags refactor caveat: since we don't use tools anymore, we need to replace all tool use blocks with a text block since the API disallows conversations with tool uses and no tool schema
 		const conversationWithoutToolBlocks = existingApiConversationHistory.map((message) => {
 			if (Array.isArray(message.content)) {

src/core/webview/ClineProvider.ts

@@ -642,6 +642,28 @@ export class ClineProvider implements vscode.WebviewViewProvider {
 						await this.updateGlobalState("writeDelayMs", message.value)
 						await this.postStateToWebview()
 						break
+					case "deleteMessage": {
+						const answer = await vscode.window.showInformationMessage(
+							"Are you sure you want to delete this message and all subsequent messages?",
+							{ modal: true },
+							"Yes",
+							"No"
+						)
+						if (answer === "Yes" && this.cline && typeof message.value === 'number' && message.value) {
+							const timeCutoff = message.value - 1000; // 1 second buffer before the message to delete
+							const messageIndex = this.cline.clineMessages.findIndex(msg =>  msg.ts && msg.ts >= timeCutoff)
+							const apiConversationHistoryIndex = this.cline.apiConversationHistory.findIndex(msg => msg.ts && msg.ts >= timeCutoff)
+							if (messageIndex !== -1) {
+								const { historyItem } = await this.getTaskWithId(this.cline.taskId)
+								await this.cline.overwriteClineMessages(this.cline.clineMessages.slice(0, messageIndex))
+								if (apiConversationHistoryIndex !== -1) {
+									await this.cline.overwriteApiConversationHistory(this.cline.apiConversationHistory.slice(0, apiConversationHistoryIndex))
+								}
+								await this.initClineWithHistoryItem(historyItem)
+							}
+						}
+						break
+					}
 					case "screenshotQuality":
 						await this.updateGlobalState("screenshotQuality", message.value)
 						await this.postStateToWebview()