/**
 * Qwen3-Embedding native-width dims suppression tests.
 *
 * Pins:
 *  - dimsProviderOptions returns undefined when the configured dim equals
 *    the model's native width (1024/2560/4096 for 0.6B/4B/8B) — fixed-dim
 *    OpenAI-compatible backends serving this family (e.g. vLLM) reject the
 *    `dimensions` parameter with HTTP 400 "does not support matryoshka
 *    representation" even when the value equals the native size, and
 *    omitting it in the equal case is a no-op for Ollama.
 *  - Matryoshka truncation is preserved: a dim that differs from the native
 *    width still emits { openaiCompatible: { dimensions } } for Ollama.
 */

import { describe, test, expect } from 'bun:test';
import { dimsProviderOptions } from '../../src/core/ai/dims.ts';

describe('qwen3-embedding native-width suppression', () => {
  test('bare model at native 1024 emits no dimensions param', () => {
    expect(dimsProviderOptions('openai-compatible', 'qwen3-embedding', 1024)).toBeUndefined();
  });

  test('tagged variants at their native width emit no dimensions param', () => {
    expect(dimsProviderOptions('openai-compatible', 'qwen3-embedding:0.6b', 1024)).toBeUndefined();
    expect(dimsProviderOptions('openai-compatible', 'qwen3-embedding:4b', 2560)).toBeUndefined();
    expect(dimsProviderOptions('openai-compatible', 'qwen3-embedding:8b', 4096)).toBeUndefined();
  });

  test('non-native dim still requests Matryoshka truncation', () => {
    expect(dimsProviderOptions('openai-compatible', 'qwen3-embedding', 512))
      .toEqual({ openaiCompatible: { dimensions: 512 } });
    expect(dimsProviderOptions('openai-compatible', 'qwen3-embedding:4b', 1024))
      .toEqual({ openaiCompatible: { dimensions: 1024 } });
  });

  test('unknown tag falls through to sending the configured dim', () => {
    expect(dimsProviderOptions('openai-compatible', 'qwen3-embedding:32b', 1024))
      .toEqual({ openaiCompatible: { dimensions: 1024 } });
  });
});