|
| 1 | +// Copyright 2025 The Chromium Authors. All rights reserved. |
| 2 | +// Use of this source code is governed by a BSD-style license that can be |
| 3 | +// found in the LICENSE file. |
| 4 | + |
| 5 | +import type * as Host from '../../core/host/host.js'; |
| 6 | +import * as Root from '../../core/root/root.js'; |
| 7 | + |
| 8 | +import {type AiAgent, type ResponseData, ResponseType} from './agents/AiAgent.js'; |
| 9 | +import {FileAgent} from './agents/FileAgent.js'; |
| 10 | +import {NetworkAgent} from './agents/NetworkAgent.js'; |
| 11 | +import {PerformanceAgent} from './agents/PerformanceAgent.js'; |
| 12 | +import {StylingAgent, StylingAgentWithFunctionCalling} from './agents/StylingAgent.js'; |
| 13 | +import { |
| 14 | + type Conversation, |
| 15 | + ConversationType, |
| 16 | +} from './AiHistoryStorage.js'; |
| 17 | +import type {ChangeManager} from './ChangeManager.js'; |
| 18 | + |
| 19 | +export interface ExternalStylingRequestParameters { |
| 20 | + conversationType: ConversationType.STYLING; |
| 21 | + prompt: string; |
| 22 | + selector?: string; |
| 23 | +} |
| 24 | + |
| 25 | +export interface ExternalNetworkRequestParameters { |
| 26 | + conversationType: ConversationType.NETWORK; |
| 27 | + prompt: string; |
| 28 | + requestUrl: string; |
| 29 | +} |
| 30 | + |
| 31 | +export interface ExternalPerformanceInsightsRequestParameters { |
| 32 | + conversationType: ConversationType.PERFORMANCE_INSIGHT; |
| 33 | + prompt: string; |
| 34 | + insightTitle: string; |
| 35 | +} |
| 36 | + |
| 37 | +function isAiAssistanceStylingWithFunctionCallingEnabled(): boolean { |
| 38 | + return Boolean(Root.Runtime.hostConfig.devToolsFreestyler?.functionCalling); |
| 39 | +} |
| 40 | + |
| 41 | +function isAiAssistanceServerSideLoggingEnabled(): boolean { |
| 42 | + return !Root.Runtime.hostConfig.aidaAvailability?.disallowLogging; |
| 43 | +} |
| 44 | + |
| 45 | +let conversationHandlerInstance: ConversationHandler|undefined; |
| 46 | + |
| 47 | +export class ConversationHandler { |
| 48 | + #aidaClient: Host.AidaClient.AidaClient; |
| 49 | + |
| 50 | + private constructor( |
| 51 | + aidaClient: Host.AidaClient.AidaClient, _aidaAvailability: Host.AidaClient.AidaAccessPreconditions) { |
| 52 | + this.#aidaClient = aidaClient; |
| 53 | + } |
| 54 | + |
| 55 | + static instance(opts: { |
| 56 | + aidaClient: Host.AidaClient.AidaClient, |
| 57 | + aidaAvailability: Host.AidaClient.AidaAccessPreconditions, |
| 58 | + forceNew?: boolean, |
| 59 | + }): ConversationHandler { |
| 60 | + if (opts.forceNew || conversationHandlerInstance === undefined) { |
| 61 | + conversationHandlerInstance = new ConversationHandler(opts.aidaClient, opts.aidaAvailability); |
| 62 | + } |
| 63 | + return conversationHandlerInstance; |
| 64 | + } |
| 65 | + |
| 66 | + static removeInstance(): void { |
| 67 | + conversationHandlerInstance = undefined; |
| 68 | + } |
| 69 | + |
| 70 | + async * |
| 71 | + handleConversationWithHistory( |
| 72 | + items: AsyncIterable<ResponseData, void, void>, conversation: Conversation|undefined): |
| 73 | + AsyncGenerator<ResponseData, void, void> { |
| 74 | + for await (const data of items) { |
| 75 | + // We don't want to save partial responses to the conversation history. |
| 76 | + if (data.type !== ResponseType.ANSWER || data.complete) { |
| 77 | + void conversation?.addHistoryItem(data); |
| 78 | + } |
| 79 | + yield data; |
| 80 | + } |
| 81 | + } |
| 82 | + |
| 83 | + createAgent(conversationType: ConversationType, changeManager?: ChangeManager): AiAgent<unknown> { |
| 84 | + const options = { |
| 85 | + aidaClient: this.#aidaClient, |
| 86 | + serverSideLoggingEnabled: isAiAssistanceServerSideLoggingEnabled(), |
| 87 | + }; |
| 88 | + let agent: AiAgent<unknown>; |
| 89 | + switch (conversationType) { |
| 90 | + case ConversationType.STYLING: { |
| 91 | + agent = new StylingAgent({ |
| 92 | + ...options, |
| 93 | + changeManager, |
| 94 | + }); |
| 95 | + if (isAiAssistanceStylingWithFunctionCallingEnabled()) { |
| 96 | + agent = new StylingAgentWithFunctionCalling({ |
| 97 | + ...options, |
| 98 | + changeManager, |
| 99 | + }); |
| 100 | + } |
| 101 | + |
| 102 | + break; |
| 103 | + } |
| 104 | + case ConversationType.NETWORK: { |
| 105 | + agent = new NetworkAgent(options); |
| 106 | + break; |
| 107 | + } |
| 108 | + case ConversationType.FILE: { |
| 109 | + agent = new FileAgent(options); |
| 110 | + break; |
| 111 | + } |
| 112 | + case ConversationType.PERFORMANCE_INSIGHT: |
| 113 | + case ConversationType.PERFORMANCE: { |
| 114 | + agent = new PerformanceAgent(options, conversationType); |
| 115 | + break; |
| 116 | + } |
| 117 | + } |
| 118 | + return agent; |
| 119 | + } |
| 120 | +} |
0 commit comments