from typing import Any, Dict, List, Optional
  
  import numpy as np

  import pytest

  
  from config import (
      FunctionScoreConfig,
      IndexConfig,
      QueryConfig,

      RerankConfig,
      SPUConfig,
      SearchConfig,
  )
  from embeddings.text_encoder import TextEmbeddingEncoder

  from embeddings.image_encoder import CLIPImageEncoder

  from embeddings.bf16 import encode_embedding_for_redis

  from embeddings.cache_keys import build_image_cache_key, build_text_cache_key

  from query import QueryParser
  
  
  class _FakeRedis:
      def __init__(self):
          self.store: Dict[str, bytes] = {}
  
      def ping(self):
          return True
  
      def get(self, key: str):
          return self.store.get(key)
  
      def setex(self, key: str, _expire, value: bytes):
          self.store[key] = value
          return True
  
      def expire(self, key: str, _expire):
          return key in self.store
  
      def delete(self, key: str):
          self.store.pop(key, None)
          return True
  
  
  class _FakeResponse:
      def __init__(self, payload: List[Optional[List[float]]]):
          self._payload = payload
  
      def raise_for_status(self):
          return None
  
      def json(self):
          return self._payload
  
  
  class _FakeTranslator:
      def translate(
          self,
          text: str,
          target_lang: str,
          source_lang: Optional[str] = None,
          prompt: Optional[str] = None,
      ) -> str:
          return f"{text}-{target_lang}"
  
  
  class _FakeQueryEncoder:
      def encode(self, sentences, **kwargs):
          if isinstance(sentences, str):
              sentences = [sentences]
          return np.array([np.array([0.11, 0.22, 0.33], dtype=np.float32) for _ in sentences], dtype=object)
  
  

  class _FakeEmbeddingCache:
      def __init__(self):
          self.store: Dict[str, np.ndarray] = {}
  
      def get(self, key: str):
          return self.store.get(key)
  
      def set(self, key: str, embedding: np.ndarray):
          self.store[key] = np.asarray(embedding, dtype=np.float32)
          return True
  
  

  def _build_test_config() -> SearchConfig:
      return SearchConfig(
          field_boosts={"title.en": 3.0},
          indexes=[IndexConfig(name="default", label="default", fields=["title.en"], boost=1.0)],
          query_config=QueryConfig(
              supported_languages=["en", "zh"],
              default_language="en",
              enable_text_embedding=True,
              enable_query_rewrite=False,

              rewrite_dictionary={},

              text_embedding_field="title_embedding",
              image_embedding_field=None,
          ),

          function_score=FunctionScoreConfig(),

          rerank=RerankConfig(),
          spu_config=SPUConfig(enabled=True, spu_field="spu_id", inner_hits_size=3),
          es_index_name="test_products",
          tenant_config={},
          es_settings={},
          services={},
      )
  
  
  def test_text_embedding_encoder_response_alignment(monkeypatch):

      fake_cache = _FakeEmbeddingCache()
      monkeypatch.setattr("embeddings.text_encoder.RedisEmbeddingCache", lambda **kwargs: fake_cache)

      def _fake_post(url, json, timeout, **kwargs):

          assert url.endswith("/embed/text")
          assert json == ["hello", "world"]

          return _FakeResponse([[0.1, 0.2], [0.3, 0.4]])

  
      monkeypatch.setattr("embeddings.text_encoder.requests.post", _fake_post)
  
      encoder = TextEmbeddingEncoder(service_url="http://127.0.0.1:6005")
      out = encoder.encode(["hello", "world"])
  
      assert len(out) == 2
      assert isinstance(out[0], np.ndarray)
      assert out[0].shape == (2,)

      assert isinstance(out[1], np.ndarray)
      assert out[1].shape == (2,)
  
  
  def test_text_embedding_encoder_raises_on_missing_vector(monkeypatch):

      fake_cache = _FakeEmbeddingCache()
      monkeypatch.setattr("embeddings.text_encoder.RedisEmbeddingCache", lambda **kwargs: fake_cache)

      def _fake_post(url, json, timeout, **kwargs):

          return _FakeResponse([[0.1, 0.2], None])
  
      monkeypatch.setattr("embeddings.text_encoder.requests.post", _fake_post)
  
      encoder = TextEmbeddingEncoder(service_url="http://127.0.0.1:6005")
      with pytest.raises(ValueError):
          encoder.encode(["hello", "world"])

  
  
  def test_text_embedding_encoder_cache_hit(monkeypatch):

      fake_cache = _FakeEmbeddingCache()

      cached = np.array([0.9, 0.8], dtype=np.float32)

      fake_cache.store[build_text_cache_key("cached-text", normalize=True)] = cached
      monkeypatch.setattr("embeddings.text_encoder.RedisEmbeddingCache", lambda **kwargs: fake_cache)

  
      calls = {"count": 0}
  

      def _fake_post(url, json, timeout, **kwargs):

          calls["count"] += 1
          return _FakeResponse([[0.3, 0.4]])
  
      monkeypatch.setattr("embeddings.text_encoder.requests.post", _fake_post)
  
      encoder = TextEmbeddingEncoder(service_url="http://127.0.0.1:6005")
      out = encoder.encode(["cached-text", "new-text"])
  
      assert calls["count"] == 1
      assert np.allclose(out[0], cached)
      assert np.allclose(out[1], np.array([0.3, 0.4], dtype=np.float32))
  
  

  def test_image_embedding_encoder_cache_hit(monkeypatch):
      fake_cache = _FakeEmbeddingCache()
      cached = np.array([0.5, 0.6], dtype=np.float32)
      url = "https://example.com/a.jpg"
      fake_cache.store[build_image_cache_key(url, normalize=True)] = cached
      monkeypatch.setattr("embeddings.image_encoder.RedisEmbeddingCache", lambda **kwargs: fake_cache)
  
      calls = {"count": 0}
  
      def _fake_post(url, params, json, timeout, **kwargs):
          calls["count"] += 1
          return _FakeResponse([[0.1, 0.2]])
  
      monkeypatch.setattr("embeddings.image_encoder.requests.post", _fake_post)
  
      encoder = CLIPImageEncoder(service_url="http://127.0.0.1:6008")
      out = encoder.encode_batch(["https://example.com/a.jpg", "https://example.com/b.jpg"])
  
      assert calls["count"] == 1
      assert np.allclose(out[0], cached)
      assert np.allclose(out[1], np.array([0.1, 0.2], dtype=np.float32))
  
  

  def test_query_parser_generates_query_vector_with_encoder():
      parser = QueryParser(
          config=_build_test_config(),
          text_encoder=_FakeQueryEncoder(),
          translator=_FakeTranslator(),
      )
  
      parsed = parser.parse("red dress", tenant_id="162", generate_vector=True)
      assert parsed.query_vector is not None
      assert parsed.query_vector.shape == (3,)
  
  
  def test_query_parser_skips_query_vector_when_disabled():
      parser = QueryParser(
          config=_build_test_config(),
          text_encoder=_FakeQueryEncoder(),
          translator=_FakeTranslator(),
      )
  
      parsed = parser.parse("red dress", tenant_id="162", generate_vector=False)
      assert parsed.query_vector is None