105 lines
2.6 KiB
TypeScript
105 lines
2.6 KiB
TypeScript
import fs from "fs/promises";
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import { v4 as uuidv4 } from "uuid";
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import { AIMessage } from "@langchain/langgraph-sdk";
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import { OpenCodeState, OpenCodeUpdate } from "../types";
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import { LangGraphRunnableConfig } from "@langchain/langgraph";
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import ComponentMap from "../../uis";
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import { typedUi } from "@langchain/langgraph-sdk/react-ui/server";
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import { PLAN } from "./planner";
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export async function executor(
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state: OpenCodeState,
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config: LangGraphRunnableConfig,
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): Promise<OpenCodeUpdate> {
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const ui = typedUi<typeof ComponentMap>(config);
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const lastPlanToolCall = state.messages.findLast(
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(m) =>
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m.getType() === "ai" &&
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(m as unknown as AIMessage).tool_calls?.some((tc) => tc.name === "plan"),
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) as AIMessage | undefined;
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const planToolCallArgs = lastPlanToolCall?.tool_calls?.[0]?.args?.args;
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const numOfExecutedPlanItems: number =
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planToolCallArgs?.executedPlans?.length ?? 0;
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const planItem = PLAN[numOfExecutedPlanItems - 1];
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let updateFileContents = "";
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switch (numOfExecutedPlanItems) {
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case 0:
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updateFileContents = await fs.readFile(
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"agent/open-code/nodes/plan-code/step-1.txt",
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"utf-8",
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);
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break;
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case 1:
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updateFileContents = await fs.readFile(
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"agent/open-code/nodes/plan-code/step-2.txt",
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"utf-8",
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);
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break;
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case 2:
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updateFileContents = await fs.readFile(
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"agent/open-code/nodes/plan-code/step-3.txt",
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"utf-8",
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);
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break;
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case 3:
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updateFileContents = await fs.readFile(
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"agent/open-code/nodes/plan-code/step-4.txt",
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"utf-8",
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);
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break;
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case 4:
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updateFileContents = await fs.readFile(
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"agent/open-code/nodes/plan-code/step-5.txt",
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"utf-8",
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);
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break;
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case 5:
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updateFileContents = await fs.readFile(
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"agent/open-code/nodes/plan-code/step-6.txt",
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"utf-8",
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);
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break;
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default:
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updateFileContents = "";
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}
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if (!updateFileContents) {
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throw new Error("No file updates found!");
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}
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const toolCallId = uuidv4();
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const aiMessage: AIMessage = {
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type: "ai",
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id: uuidv4(),
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content: "",
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tool_calls: [
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{
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name: "update_file",
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args: {
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args: {
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new_file_content: updateFileContents,
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},
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},
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id: toolCallId,
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type: "tool_call",
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},
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],
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};
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const msg = ui.create("proposed-change", {
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toolCallId,
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change: updateFileContents,
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planItem,
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});
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msg.additional_kwargs["message_id"] = aiMessage.id;
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return {
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messages: [aiMessage],
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ui: [msg],
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timestamp: Date.now(),
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};
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}
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