// Licensed to the LF AI & Data foundation under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership. The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License. You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package vertexai

import (
	"encoding/json"
	"fmt"
	"net/http"
	"net/http/httptest"
	"testing"

	"github.com/stretchr/testify/assert"
)

func TestEmbeddingClientCheck(t *testing.T) {
	mockJSONKey := []byte{1, 2, 3}
	{
		c := NewVertexAIEmbedding("mock_url", []byte{}, "mock_scopes", "")
		err := c.Check()
		assert.True(t, err != nil)
		fmt.Println(err)
	}

	{
		c := NewVertexAIEmbedding("", mockJSONKey, "", "")
		err := c.Check()
		assert.True(t, err != nil)
		fmt.Println(err)
	}

	{
		c := NewVertexAIEmbedding("mock_url", mockJSONKey, "mock_scopes", "")
		err := c.Check()
		assert.True(t, err == nil)
	}
}

func TestEmbeddingOK(t *testing.T) {
	var res EmbeddingResponse
	repStr := `{"predictions": [{"embeddings": {"statistics": {"truncated": false, "token_count": 4}, "values": [-0.028420744463801384, 0.037183016538619995]}}, {"embeddings": {"statistics": {"truncated": false, "token_count": 8}, "values": [-0.04367655888199806, 0.03777721896767616, 0.0158217903226614]}}], "metadata": {"billableCharacterCount": 27}}`
	err := json.Unmarshal([]byte(repStr), &res)
	assert.NoError(t, err)
	ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		w.WriteHeader(http.StatusOK)
		data, _ := json.Marshal(res)
		w.Write(data)
	}))

	defer ts.Close()
	url := ts.URL

	{
		c := NewVertexAIEmbedding(url, []byte{1, 2, 3}, "mock_scopes", "mock_token")
		err := c.Check()
		assert.True(t, err == nil)
		_, err = c.Embedding("text-embedding-005", []string{"sentence"}, 0, "query", 0)
		assert.True(t, err == nil)
	}
}

func TestEmbeddingFailed(t *testing.T) {
	ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		w.WriteHeader(http.StatusUnauthorized)
	}))

	defer ts.Close()
	url := ts.URL

	{
		c := NewVertexAIEmbedding(url, []byte{1, 2, 3}, "mock_scopes", "mock_token")
		err := c.Check()
		assert.True(t, err == nil)
		_, err = c.Embedding("text-embedding-v2", []string{"sentence"}, 0, "query", 0)
		assert.True(t, err != nil)
	}
}