feat: Add uuid npm dependency for unique identifier generation

backend/package.json

@@ -46,7 +46,8 @@
     "rxjs": "^7.8.1",
     "sqlite3": "^5.1.7",
     "subscriptions-transport-ws": "^0.11.0",
-    "typeorm": "^0.3.20"
+    "typeorm": "^0.3.20",
+    "uuid": "^10.0.0"
   },
   "devDependencies": {
     "@eslint/eslintrc": "^3.1.0",

backend/src/build-system/context.ts

@@ -1,11 +1,12 @@
+import { ModelProvider } from 'src/common/model-provider';
 import { BuildHandlerManager } from './hanlder-manager';
 import {
   BuildExecutionState,
   BuildNode,
   BuildResult,
   BuildSequence,
-  BuildStep,
 } from './types';
+import { Logger } from '@nestjs/common';
 
 export class BuilderContext {
   private state: BuildExecutionState = {
@@ -14,12 +15,19 @@ export class BuilderContext {
     failed: new Set(),
     waiting: new Set(),
   };
-
+  private logger;
   private data: Record<string, any> = {};
+  // Store the results of the nodes
+  private results: Map<string, BuildResult> = new Map();
   private handlerManager: BuildHandlerManager;
+  public model: ModelProvider;
 
-  constructor(private sequence: BuildSequence) {
+  constructor(
+    private sequence: BuildSequence,
+    id: string,
+  ) {
     this.handlerManager = BuildHandlerManager.getInstance();
+    new Logger(`builder-context-${id}`);
   }
 
   canExecute(nodeId: string): boolean {
@@ -41,7 +49,7 @@ export class BuilderContext {
     return null;
   }
 
-  async run(nodeId: string): Promise<BuildResult> {
+  async run(nodeId: string, args: unknown | undefined): Promise<BuildResult> {
     const node = this.findNode(nodeId);
     if (!node) {
       throw new Error(`Node not found: ${nodeId}`);
@@ -53,9 +61,13 @@ export class BuilderContext {
 
     try {
       this.state.pending.add(nodeId);
-      const result = await this.executeNode(node);
+      const result = await this.executeNode(node, args);
       this.state.completed.add(nodeId);
       this.state.pending.delete(nodeId);
+
+      // Store the result for future use
+      this.results.set(nodeId, result);
+
       return result;
     } catch (error) {
       this.state.failed.add(nodeId);
@@ -76,17 +88,24 @@ export class BuilderContext {
     return this.data[key];
   }
 
-  private async executeNode(node: BuildNode): Promise<BuildResult> {
+  getResult(nodeId: string): BuildResult | undefined {
+    return this.results.get(nodeId);
+  }
+
+  private async executeNode(
+    node: BuildNode,
+    args: unknown,
+  ): Promise<BuildResult> {
     if (process.env.NODE_ENV === 'test') {
-      console.log(`[TEST] Executing node: ${node.id}`);
+      this.logger.log(`[TEST] Executing node: ${node.id}`);
       return { success: true, data: { nodeId: node.id } };
     }
 
-    console.log(`Executing node: ${node.id}`);
+    this.logger.log(`Executing node: ${node.id}`);
     const handler = this.handlerManager.getHandler(node.id);
     if (!handler) {
       throw new Error(`No handler found for node: ${node.id}`);
     }
-    return handler.run(this);
+    return handler.run(this, args);
   }
 }

backend/src/build-system/executor.ts

@@ -1,30 +1,44 @@
+import { Logger } from '@nestjs/common';
 import { BuilderContext } from './context';
 import { BuildNode, BuildSequence, BuildStep } from './types';
+import { v4 as uuidv4 } from 'uuid';
 
 export class BuildSequenceExecutor {
   constructor(private context: BuilderContext) {}
 
+  private logger: Logger = new Logger(`BuildSequenceExecutor-${uuidv4()}`);
   private async executeNode(node: BuildNode): Promise<void> {
     try {
       if (this.context.getState().completed.has(node.id)) {
         return;
       }
 
       if (!this.context.canExecute(node.id)) {
-        console.log(`Waiting for dependencies: ${node.requires?.join(', ')}`);
-        await new Promise((resolve) => setTimeout(resolve, 100)); // 添加小延迟
+        this.logger.log(
+          `Waiting for dependencies: ${node.requires?.join(', ')}`,
+        );
+        await new Promise((resolve) => setTimeout(resolve, 100));
         return;
       }
 
-      await this.context.run(node.id);
+      const dependenciesResults = node.requires?.map((depId) =>
+        this.context.getResult(depId),
+      );
+
+      this.logger.log(
+        `Executing node ${node.id} with dependencies:`,
+        dependenciesResults,
+      );
+
+      await this.context.run(node.id, dependenciesResults);
     } catch (error) {
-      console.error(`Error executing node ${node.id}:`, error);
+      this.logger.error(`Error executing node ${node.id}:`, error);
       throw error;
     }
   }
 
   private async executeStep(step: BuildStep): Promise<void> {
-    console.log(`Executing build step: ${step.id}`);
+    this.logger.log(`Executing build step: ${step.id}`);
 
     if (step.parallel) {
       let remainingNodes = [...step.nodes];
@@ -84,7 +98,7 @@ export class BuildSequenceExecutor {
 
         if (!this.context.getState().completed.has(node.id)) {
           // TODO: change to error log
-          console.warn(
+          this.logger.warn(
             `Failed to execute node ${node.id} after ${maxRetries} attempts`,
           );
         }
@@ -93,7 +107,7 @@ export class BuildSequenceExecutor {
   }
 
   async executeSequence(sequence: BuildSequence): Promise<void> {
-    console.log(`Starting build sequence: ${sequence.id}`);
+    this.logger.log(`Starting build sequence: ${sequence.id}`);
 
     for (const step of sequence.steps) {
       await this.executeStep(step);
@@ -104,7 +118,7 @@ export class BuildSequenceExecutor {
 
       if (incompletedNodes.length > 0) {
         // TODO: change to error log
-        console.warn(
+        this.logger.warn(
           `Step ${step.id} failed to complete nodes: ${incompletedNodes
             .map((n) => n.id)
             .join(', ')}`,
@@ -113,7 +127,7 @@ export class BuildSequenceExecutor {
       }
     }
 
-    console.log(`Build sequence completed: ${sequence.id}`);
-    console.log('Final state:', this.context.getState());
+    this.logger.log(`Build sequence completed: ${sequence.id}`);
+    this.logger.log('Final state:', this.context.getState());
   }
 }

backend/src/build-system/node/product_requirements_document/prd.ts

@@ -2,15 +2,13 @@ import { BuildHandler, BuildResult } from 'src/build-system/types';
 import { BuilderContext } from 'src/build-system/context';
 import { prompts } from './prompt/prompt';
 import { ModelProvider } from 'src/common/model-provider';
-import { StreamStatus } from 'src/chat/chat.model';
-import * as fs from 'fs';
-import * as path from 'path';
+import { Logger } from '@nestjs/common';
 
 export class PRDHandler implements BuildHandler {
   readonly id = 'op:PRD::STATE:GENERATE';
-
+  readonly logger: Logger = new Logger('PRDHandler');
   async run(context: BuilderContext): Promise<BuildResult> {
-    console.log('Generating PRD...');
+    this.logger.log('Generating PRD...');
 
     // Extract project data from the context
     const projectName =
@@ -28,9 +26,6 @@ export class PRDHandler implements BuildHandler {
     // Send the prompt to the LLM server and process the response
     const prdContent = await this.generatePRDFromLLM(prompt);
 
-    // Save the PRD content to context for further use
-    context.setData('prdDocument', prdContent);
-
     return {
       success: true,
       data: prdContent,
@@ -39,20 +34,9 @@ export class PRDHandler implements BuildHandler {
 
   private async generatePRDFromLLM(prompt: string): Promise<string> {
     const modelProvider = ModelProvider.getInstance();
-
     const model = 'gpt-3.5-turbo';
-
-    // Call the chat method with the model specified
-    const chatStream = modelProvider.chat(
-      {
-        content: prompt,
-      },
-      model,
-    ); // Pass the model here
-
-    const prdContent = modelProvider.chunkSync(chatStream);
-
-    console.log('Received full PRD content from LLM server.');
+    const prdContent = await modelProvider.chatSync({ content: prompt }, model);
+    this.logger.log('Received full PRD content from LLM server.');
     return prdContent;
   }
 }

backend/src/build-system/types.ts

@@ -1,3 +1,4 @@
+import { ModelProvider } from 'src/common/model-provider';
 import { BuilderContext } from './context';
 
 export type BuildNodeType =
@@ -74,6 +75,14 @@ export interface BuildExecutionState {
 }
 
 export interface BuildHandler {
+  // Unique identifier for the handler
   id: string;
-  run(context: BuilderContext): Promise<BuildResult>;
+
+  /**
+   *
+   * @param context the context object for the build
+   * @param model model provider for the build
+   * @param args the request arguments
+   */
+  run(context: BuilderContext, args: unknown): Promise<BuildResult>;
 }

backend/src/common/model-provider/index.ts

@@ -49,6 +49,24 @@ export class ModelProvider {
     private readonly config: ModelProviderConfig,
   ) {}
 
+  async chatSync(
+    input: ChatInput | string,
+    model: string,
+    chatId?: string,
+  ): Promise<string> {
+    const chatStream = this.chat(input, model, chatId);
+    let content = '';
+    for await (const chunk of chatStream) {
+      if (chunk.status === StreamStatus.STREAMING) {
+        content += chunk.choices
+          .map((choice) => choice.delta?.content || '')
+          .join('');
+      }
+    }
+    this.logger.log('Aggregated content from chat stream:', content);
+    return content;
+  }
+
   chat(
     input: ChatInput | string,
     model: string,
@@ -199,19 +217,6 @@ export class ModelProvider {
     }
   }
 
-  async chunkSync(chatStream: AsyncIterableIterator<any>): Promise<string> {
-    let aggregatedContent = '';
-    for await (const chunk of chatStream) {
-      if (chunk.status === StreamStatus.STREAMING) {
-        aggregatedContent += chunk.choices
-          .map((choice) => choice.delta?.content || '')
-          .join('');
-      }
-    }
-    this.logger.log('Aggregated content from chat stream:', aggregatedContent);
-    return aggregatedContent;
-  }
-
   private startChat(input: ChatInput, model: string, chatId?: string) {
     const payload = this.createRequestPayload(input, model, chatId);