import test from "node:test";
import assert from "node:assert/strict";
import {
  formatModelReference,
  listAvailableModelReferences,
  normalizeAvailableModelReference,
  resolveChildModel,
} from "./models.ts";

test("resolveChildModel prefers the per-task override over the required top-level model", () => {
  const selection = resolveChildModel({
    taskModel: "openai/gpt-5",
    topLevelModel: "anthropic/claude-sonnet-4-5",
  });

  assert.equal(selection.requestedModel, "openai/gpt-5");
  assert.equal(selection.resolvedModel, "openai/gpt-5");
});

test("formatModelReference returns provider/id", () => {
  const ref = formatModelReference({ provider: "anthropic", id: "claude-sonnet-4-5" });

  assert.equal(ref, "anthropic/claude-sonnet-4-5");
});

test("listAvailableModelReferences formats all configured available models", () => {
  const refs = listAvailableModelReferences({
    getAvailable: () => [
      { provider: "anthropic", id: "claude-sonnet-4-5" },
      { provider: "openai", id: "gpt-5" },
    ],
  });

  assert.deepEqual(refs, ["anthropic/claude-sonnet-4-5", "openai/gpt-5"]);
});

test("normalizeAvailableModelReference matches canonical refs case-insensitively", () => {
  const normalized = normalizeAvailableModelReference("OpenAI/GPT-5", [
    "anthropic/claude-sonnet-4-5",
    "openai/gpt-5",
  ]);

  assert.equal(normalized, "openai/gpt-5");
});