codechecker

import { completeText, extractJson } from "../llm";
import type { BuildPlan, Patch } from "../types";

export class Optimizer {
  constructor(private readonly model: any) {}

  async run(input: {
    plan: BuildPlan;
    snapshot: string;
    issues: string[];
    memorySummary: string;
  }): Promise<Patch[]> {
    const prompt = [
      "You are the Optimizer agent for Codechecker Forge.",
      "Return JSON only. No markdown, no commentary.",
      "Fix the issues with minimal diff-based patches.",
      "",
      "Plan:",
      JSON.stringify(input.plan, null, 2),
      "",
      "Workspace snapshot:",
      input.snapshot,
      "",
      "Issues to fix:",
      input.issues.join("\n"),
      "",
      "Relevant memories:",
      input.memorySummary || "(none)",
      "",
      "Return exactly this JSON shape:",
      `{ "patches": [ { "file": "src/index.ts", "operation": "replace", "target": "old", "content": "new" } ] }`
    ].join("\n");

    const raw = await completeText(this.model, prompt, 3200, 0.12);
    const parsed = extractJson<{ patches: Patch[] }>(raw);
    return Array.isArray(parsed.patches) ? parsed.patches : [];
  }
}