// Question templates from tamaratran / fast-jev-compaction · MIT.
// Source: https://github.com/tamaratran/fast-jev-compaction/blob/e3f262a7f4d42bd8dd32ced30d26176f7cb545b0/src/compact.ts
// Exact question templates with call.id = t1, call.tool = read_file, and call.resultChars = 4200 substituted. Example state and SDK wrapper are simplified; transcript mutation is deliberately left to your application.
/*
MIT License

Copyright (c) 2025

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/

// Setup: npm install @typesafe-ai/sdk@0.6.0
// Set TYPESAFE_API_KEY in your environment. Never put it in browser code.
// Save as decision.ts; run with Node.js 24: node decision.ts
// API calls incur provider charges. Not live-tested by Jev Directory.
import { noul, TypeSafeClient, type JsonValue } from "@typesafe-ai/sdk";

// Illustrative input, not a recorded model test.
const state: JsonValue = {
  "goal": "Fix the failing checkout test.",
  "history": [
    {
      "role": "user",
      "text": "Inspect checkout.ts and fix the balance check."
    },
    {
      "role": "assistant",
      "tool_calls": [
        {
          "id": "t1",
          "tool": "read_file",
          "input": {
            "path": "src/checkout.ts"
          },
          "result": "ok, 4200 chars (omitted)"
        }
      ]
    },
    {
      "role": "user",
      "text": "The latest test still fails at the insufficient-funds branch."
    }
  ]
};
const client = new TypeSafeClient();
try {
  const response = await client.systemOne({
    model: "jev-latest",
    state,
    questions: {
      call_t1: noul(
        "Tool call t1 (read_file) should stay in the history: knowing this call was made, with its input, still matters for what the assistant does next"
      ),
      result_t1: noul(
        "The full output of tool call t1 (read_file, 4200 chars) should stay in the history verbatim: the assistant still needs its contents and re-running the tool would not do"
      )
    },
  });

  const pinned = false; // Determine this from message age and your preservation rules.
  const keepCall = response.answers.call_t1.noul;
  const keepResult = response.answers.result_t1.noul;
  const action = pinned || keepResult >= 0.5 ? "keep"
    : keepCall >= 0.5 ? "truncate_result" : "drop_call_and_result";
  console.log({ action }); // Suggest only; this example does not delete context.
} catch (error) {
  console.error("Decision unavailable; use your fallback or human review.", error);
  process.exitCode = 1;
}