"use strict"; Object.defineProperty(exports, "__esModule", { value: true }); exports.OpenAIAssistantRunnable = void 0; const openai_1 = require("@langchain/openai"); const tools_1 = require("@langchain/core/tools"); const runnables_1 = require("@langchain/core/runnables"); const openai_2 = require("@langchain/openai"); const time_js_1 = require("../../util/time.cjs"); class OpenAIAssistantRunnable extends runnables_1.Runnable { constructor(fields) { super(fields); Object.defineProperty(this, "lc_namespace", { enumerable: true, configurable: true, writable: true, value: ["langchain", "experimental", "openai_assistant"] }); Object.defineProperty(this, "client", { enumerable: true, configurable: true, writable: true, value: void 0 }); Object.defineProperty(this, "assistantId", { enumerable: true, configurable: true, writable: true, value: void 0 }); Object.defineProperty(this, "pollIntervalMs", { enumerable: true, configurable: true, writable: true, value: 1000 }); Object.defineProperty(this, "asAgent", { enumerable: true, configurable: true, writable: true, value: void 0 }); this.client = fields.client ?? new openai_1.OpenAIClient(fields?.clientOptions); this.assistantId = fields.assistantId; this.asAgent = fields.asAgent ?? this.asAgent; } static async createAssistant({ model, name, instructions, tools, client, clientOptions, asAgent, pollIntervalMs, fileIds, }) { const formattedTools = tools?.map((tool) => { // eslint-disable-next-line no-instanceof/no-instanceof if (tool instanceof tools_1.StructuredTool) { return (0, openai_2.formatToOpenAIAssistantTool)(tool); } return tool; }) ?? []; const oaiClient = client ?? new openai_1.OpenAIClient(clientOptions); const assistant = await oaiClient.beta.assistants.create({ name, instructions, tools: formattedTools, model, file_ids: fileIds, // eslint-disable-next-line @typescript-eslint/no-explicit-any }); return new this({ client: oaiClient, assistantId: assistant.id, asAgent, pollIntervalMs, }); } async invoke(input, _options) { // eslint-disable-next-line @typescript-eslint/no-explicit-any let run; if (this.asAgent && input.steps && input.steps.length > 0) { const parsedStepsInput = await this._parseStepsInput(input); run = await this.client.beta.threads.runs.submitToolOutputs(parsedStepsInput.threadId, parsedStepsInput.runId, { tool_outputs: parsedStepsInput.toolOutputs, }); } else if (!("threadId" in input)) { const thread = { messages: [ { role: "user", content: input.content, file_ids: input.fileIds, metadata: input.messagesMetadata, }, ], metadata: input.threadMetadata, }; run = await this._createThreadAndRun({ ...input, thread, }); } else if (!("runId" in input)) { await this.client.beta.threads.messages.create(input.threadId, { content: input.content, role: "user", file_ids: input.file_ids, metadata: input.messagesMetadata, // eslint-disable-next-line @typescript-eslint/no-explicit-any }); run = await this._createRun(input); } else { // Submitting tool outputs to an existing run, outside the AgentExecutor // framework. run = await this.client.beta.threads.runs.submitToolOutputs(input.threadId, input.runId, { tool_outputs: input.toolOutputs, }); } return this._getResponse(run.id, run.thread_id); } /** * Delete an assistant. * * @link {https://platform.openai.com/docs/api-reference/assistants/deleteAssistant} * @returns {Promise} */ async deleteAssistant() { return await this.client.beta.assistants.del(this.assistantId); } /** * Retrieves an assistant. * * @link {https://platform.openai.com/docs/api-reference/assistants/getAssistant} * @returns {Promise} */ async getAssistant() { return await this.client.beta.assistants.retrieve(this.assistantId); } /** * Modifies an assistant. * * @link {https://platform.openai.com/docs/api-reference/assistants/modifyAssistant} * @returns {Promise} */ async modifyAssistant({ model, name, instructions, fileIds, }) { return await this.client.beta.assistants.update(this.assistantId, { name, instructions, model, file_ids: fileIds, // eslint-disable-next-line @typescript-eslint/no-explicit-any }); } async _parseStepsInput(input) { const { action: { runId, threadId }, } = input.steps[input.steps.length - 1]; const run = await this._waitForRun(runId, threadId); const toolCalls = run.required_action?.submit_tool_outputs.tool_calls; if (!toolCalls) { return input; } // eslint-disable-next-line @typescript-eslint/no-explicit-any const toolOutputs = toolCalls.flatMap((toolCall) => { const matchedAction = input.steps.find((step) => step.action.toolCallId === toolCall.id); return matchedAction ? [ { output: matchedAction.observation, tool_call_id: matchedAction.action.toolCallId, }, ] : []; }); return { toolOutputs, runId, threadId }; } async _createRun({ instructions, model, tools, metadata, threadId, }) { const run = this.client.beta.threads.runs.create(threadId, { assistant_id: this.assistantId, instructions, model, tools, metadata, }); return run; } async _createThreadAndRun(input) { const params = [ "instructions", "model", "tools", "run_metadata", ] .filter((key) => key in input) .reduce((obj, key) => { const newObj = obj; newObj[key] = input[key]; return newObj; }, {}); const run = this.client.beta.threads.createAndRun({ ...params, thread: input.thread, assistant_id: this.assistantId, }); return run; } async _waitForRun(runId, threadId) { let inProgress = true; // eslint-disable-next-line @typescript-eslint/no-explicit-any let run = {}; while (inProgress) { run = await this.client.beta.threads.runs.retrieve(threadId, runId); inProgress = ["in_progress", "queued"].includes(run.status); if (inProgress) { await (0, time_js_1.sleep)(this.pollIntervalMs); } } return run; } async _getResponse(runId, threadId) { const run = await this._waitForRun(runId, threadId); if (run.status === "completed") { const messages = await this.client.beta.threads.messages.list(threadId, { order: "desc", }); const newMessages = messages.data.filter((msg) => msg.run_id === runId); if (!this.asAgent) { return newMessages; } const answer = newMessages.flatMap((msg) => msg.content); if (answer.every((item) => item.type === "text")) { const answerString = answer .map((item) => item.type === "text" && item.text.value) .join("\n"); return { returnValues: { output: answerString, runId, threadId, }, log: "", runId, threadId, }; } } else if (run.status === "requires_action") { if (!this.asAgent) { return run.required_action?.submit_tool_outputs.tool_calls ?? []; } const actions = []; run.required_action?.submit_tool_outputs.tool_calls.forEach( // eslint-disable-next-line @typescript-eslint/no-explicit-any (item) => { const functionCall = item.function; const args = JSON.parse(functionCall.arguments); actions.push({ tool: functionCall.name, toolInput: args, toolCallId: item.id, log: "", runId, threadId, }); }); return actions; } const runInfo = JSON.stringify(run, null, 2); throw new Error(`Unexpected run status ${run.status}.\nFull run info:\n\n${runInfo}`); } } exports.OpenAIAssistantRunnable = OpenAIAssistantRunnable;