// 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 cohere

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

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

func TestEmbeddingClientCheck(t *testing.T) {
	{
		c := NewCohereEmbeddingClient("", "mock_uri")
		err := c.Check()
		assert.True(t, err != nil)
		fmt.Println(err)
	}

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

	{
		c := NewCohereEmbeddingClient("mock_key", "mock_uri")
		err := c.Check()
		assert.True(t, err == nil)
	}
}

func TestEmbeddingOK(t *testing.T) {
	var res EmbeddingResponse
	repStr := `{
  "id": "5807ee2e-0cda-445a-9ec8-864c60a06606",
  "embeddings": {
    "float": [
      [
        0.0, 0.1
      ],
      [
        1.0, 1.1
      ]
    ]
  },
  "texts": [
    "hello",
    "goodbye"
  ],
  "meta": {
    "api_version": {
      "version": "2",
      "is_experimental": true
    },
    "billed_units": {
      "input_tokens": 2
    },
    "warnings": [
      "You are using an experimental version, for more information please refer to https://docs.cohere.com/versioning-reference"
    ]
  }
}`
	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 := NewCohereEmbeddingClient("mock_key", url)
		err := c.Check()
		assert.True(t, err == nil)
		ret, err := c.Embedding("voyage-3", []string{"sentence"}, "search_document", "float", "END", 0)
		assert.True(t, err == nil)
		assert.Equal(t, ret.Embeddings.Float[0], []float32{0.0, 0.1})
		assert.Equal(t, ret.Embeddings.Float[1], []float32{1.0, 1.1})
	}
}

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 := NewCohereEmbeddingClient("mock_key", url)
		err := c.Check()
		assert.True(t, err == nil)
		_, err = c.Embedding("voyage-3", []string{"sentence"}, "search_document", "float", "END", 0)
		assert.True(t, err != nil)
	}
}