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Implement checkpoint mechanism for AI copilot chat #992

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Merged
merged 3 commits into from
Nov 25, 2025
Merged

Implement checkpoint mechanism for AI copilot chat #992

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6505fe4
Add checkpoint mechanism for AI copilot chat
RNViththagan Nov 21, 2025
5e63cdc
Add experimental tag and fix plan state issue
RNViththagan Nov 24, 2025
0be430a
Update AI SDK dependencies to latest versions
RNViththagan Nov 24, 2025
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68 changes: 34 additions & 34 deletions common/config/rush/pnpm-lock.yaml
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21 changes: 21 additions & 0 deletions workspaces/ballerina/ballerina-core/src/state-machine-types.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -421,6 +421,7 @@ export enum AIChatMachineEventType {
DISABLE_AUTO_APPROVE = 'DISABLE_AUTO_APPROVE',
REJECT_TASK = 'REJECT_TASK',
RESTORE_STATE = 'RESTORE_STATE',
RESTORE_CHECKPOINT = 'RESTORE_CHECKPOINT',
ERROR = 'ERROR',
RETRY = 'RETRY',
CONNECTOR_GENERATION_REQUESTED = 'CONNECTOR_GENERATION_REQUESTED',
Expand All @@ -434,6 +435,16 @@ export interface ChatMessage {
uiResponse: string;
modelMessages: any[];
timestamp: number;
checkpointId?: string;
}

export interface Checkpoint {
id: string;
messageId: string;
timestamp: number;
workspaceSnapshot: { [filePath: string]: string };
fileList: string[];
snapshotSize: number;
}

/**
Expand Down Expand Up @@ -497,6 +508,7 @@ export interface AIChatMachineContext {
comment?: string;
};
previousState?: AIChatMachineStateValue;
checkpoints?: Checkpoint[];
}

export type AIChatMachineSendableEvent =
Expand All @@ -515,6 +527,7 @@ export type AIChatMachineSendableEvent =
| { type: AIChatMachineEventType.REJECT_TASK; payload: { comment?: string } }
| { type: AIChatMachineEventType.RESET }
| { type: AIChatMachineEventType.RESTORE_STATE; payload: { state: AIChatMachineContext } }
| { type: AIChatMachineEventType.RESTORE_CHECKPOINT; payload: { checkpointId: string } }
| { type: AIChatMachineEventType.ERROR; payload: { message: string } }
| { type: AIChatMachineEventType.RETRY }
| { type: AIChatMachineEventType.CONNECTOR_GENERATION_REQUESTED; payload: { requestId: string; serviceName?: string; serviceDescription?: string; fromState?: AIChatMachineStateValue } }
Expand Down Expand Up @@ -577,6 +590,8 @@ export enum ColorThemeKind {
export interface UIChatHistoryMessage {
role: "user" | "assistant";
content: string;
checkpointId?: string;
messageId?: string;
}

export const aiStateChanged: NotificationType<AIMachineStateValue> = { method: 'aiStateChanged' };
Expand All @@ -588,6 +603,12 @@ export const sendAIChatStateEvent: RequestType<AIChatMachineEventType | AIChatMa
export const getAIChatContext: RequestType<void, AIChatMachineContext> = { method: 'getAIChatContext' };
export const getAIChatUIHistory: RequestType<void, UIChatHistoryMessage[]> = { method: 'getAIChatUIHistory' };

export interface CheckpointCapturedPayload {
messageId: string;
checkpointId: string;
}
export const checkpointCaptured: NotificationType<CheckpointCapturedPayload> = { method: 'checkpointCaptured' };

// Connector Generator RPC methods
export interface ConnectorGeneratorResponsePayload {
requestId: string;
Expand Down
33 changes: 30 additions & 3 deletions workspaces/ballerina/ballerina-extension/package.json
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Original file line number Diff line number Diff line change
Expand Up @@ -233,6 +233,33 @@
"Trace request/response messages only",
"Trace request/response messages with parameters and content"
]
},
"ballerina.copilot.checkpoints.enabled": {
"type": "boolean",
"default": true,
"description": "Enable checkpoint mechanism for copilot chat to restore previous states."
},
"ballerina.copilot.checkpoints.maxCount": {
"type": "number",
"default": 20,
"description": "Maximum number of checkpoints to keep."
},
"ballerina.copilot.checkpoints.ignorePatterns": {
"type": "array",
"default": [
".git/**",
"target/**",
"build/**",
"dist/**",
".vscode/**",
"*.log"
],
"description": "File patterns to ignore when creating checkpoints."
},
"ballerina.copilot.checkpoints.maxSnapshotSize": {
"type": "number",
"default": 52428800,
"description": "Maximum snapshot size in bytes (default: 50MB)."
}
}
},
Expand Down Expand Up @@ -1198,8 +1225,8 @@
"copyJSLibs": "copyfiles -f ../ballerina-visualizer/build/*.js resources/jslibs && copyfiles -f ../trace-visualizer/build/*.js resources/jslibs"
},
"dependencies": {
"@ai-sdk/amazon-bedrock": "^3.0.25",
"@ai-sdk/anthropic": "^2.0.20",
"@ai-sdk/amazon-bedrock": "^3.0.57",
"@ai-sdk/anthropic": "^2.0.45",
"@opentelemetry/auto-instrumentations-node": "^0.67.0",
"@opentelemetry/sdk-node": "^0.208.0",
"@types/lodash": "^4.14.200",
Expand All @@ -1211,7 +1238,7 @@
"@wso2/syntax-tree": "workspace:*",
"@wso2/trace-visualizer": "workspace:*",
"@wso2/wso2-platform-core": "workspace:*",
"ai": "^5.0.56",
"ai": "^5.0.101",
"cors-anywhere": "^0.4.4",
"del-cli": "^5.1.0",
"dotenv": "~16.5.0",
Expand Down
6 changes: 5 additions & 1 deletion workspaces/ballerina/ballerina-extension/src/RPCLayer.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -19,7 +19,7 @@
import { WebviewView, WebviewPanel, window } from 'vscode';
import { Messenger } from 'vscode-messenger';
import { StateMachine } from './stateMachine';
import { stateChanged, getVisualizerLocation, VisualizerLocation, projectContentUpdated, aiStateChanged, sendAIStateEvent, popupStateChanged, getPopupVisualizerState, PopupVisualizerLocation, breakpointChanged, AIMachineEventType, ArtifactData, onArtifactUpdatedNotification, onArtifactUpdatedRequest, currentThemeChanged, AIMachineSendableEvent, aiChatStateChanged, sendAIChatStateEvent, getAIChatContext, getAIChatUIHistory, AIChatMachineEventType, AIChatMachineSendableEvent } from '@wso2/ballerina-core';
import { stateChanged, getVisualizerLocation, VisualizerLocation, projectContentUpdated, aiStateChanged, sendAIStateEvent, popupStateChanged, getPopupVisualizerState, PopupVisualizerLocation, breakpointChanged, AIMachineEventType, ArtifactData, onArtifactUpdatedNotification, onArtifactUpdatedRequest, currentThemeChanged, AIMachineSendableEvent, aiChatStateChanged, sendAIChatStateEvent, getAIChatContext, getAIChatUIHistory, AIChatMachineEventType, AIChatMachineSendableEvent, checkpointCaptured, CheckpointCapturedPayload } from '@wso2/ballerina-core';
import { VisualizerWebview } from './views/visualizer/webview';
import { registerVisualizerRpcHandlers } from './rpc-managers/visualizer/rpc-handler';
import { registerLangClientRpcHandlers } from './rpc-managers/lang-client/rpc-handler';
Expand Down Expand Up @@ -190,3 +190,7 @@ export function notifyAiWebview() {
export function notifyBreakpointChange() {
RPCLayer._messenger.sendNotification(breakpointChanged, { type: 'webview', webviewType: VisualizerWebview.viewType }, true);
}

export function notifyCheckpointCaptured(payload: CheckpointCapturedPayload) {
RPCLayer._messenger.sendNotification(checkpointCaptured, { type: 'webview', webviewType: AiPanelWebview.viewType }, payload);
}
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