package ai_model_cli

import (
	"bytes"
	"encoding/base64"
	"encoding/json"
	"goskeleton/app/global/my_errors"
	"goskeleton/app/global/variable"
	"goskeleton/app/utils/baidubce"
	"net/http"

	"github.com/gin-gonic/gin"
)

type BaiduBCEVOP struct {
	Format  string `json:"format"`
	Rate    int    `json:"rate"`
	Channel int    `json:"channel"`
	Cuid    string `json:"cuid"`
	DevPid  int    `json:"dev_pid"`
	Speech  string `json:"speech"`
	Len     int    `json:"len"`
	Token   string `json:"token"`
}

/**
 * 向百度智能云ocr(基础精准版)发送消息, 获得识别消息
 * @return 识别出的信息的内容
 */
func RequestVOP(context *gin.Context) (r bool, c interface{}) {
	path := "https://vop.baidu.com/pro_api"
	// 获得语音数据，需要 base64 和urlencode处理
	// TODO:linlnf
	content := context.PostForm("voc")
	// 再进行 Base64 解码
	decodedVoc, _ := base64.StdEncoding.DecodeString(content)
	// 组装 body 数据，参数在该网址：https://cloud.baidu.com/doc/SPEECH/s/4lbxdz34z
	jsonData, _ := json.Marshal(BaiduBCEVOP{
		Format:  "pcm",
		Rate:    16000,
		Channel: 1,
		Cuid:    "kRxqyFGTgJOtBU4b5LnhWEvX6g8EU4Z7",
		DevPid:  80001,
		Speech:  content,
		Len:     len(decodedVoc),
		Token:   baidubce.GetAccessToken(),
	})

	client := &http.Client{}
	// 请求数据
	req, err := http.NewRequest("POST", path, bytes.NewBuffer(jsonData))
	if err != nil {
		variable.ZapLog.Error(my_errors.ErrorBaiduCEUseVOPFail + err.Error())
		return false, nil
	}
	req.Header.Add("Content-Type", "application/json")
	req.Header.Add("Accept", "application/json")
	res, err := client.Do(req)

	if err != nil {
		variable.ZapLog.Error(my_errors.ErrorBaiduCEUseVOPFail + err.Error())
		return false, nil
	}
	defer res.Body.Close()
	//从res中提取识别出的信息
	mbody, err := baidubce.DecodeResBody(res, "vop")
	if err != nil {
		variable.ZapLog.Error(my_errors.ErrorBaiduCEUseVOPFail + err.Error())
		return false, nil
	}
	return true, gin.H{
		"words": decodeBody2Str(mbody),
	}
}

/*
 * 将返回的内容中的所有识别出的文字信息进行组合
 * @return 识别出的信息的内容字符串
 */
func decodeBody2Str(mbody map[string]interface{}) (str string) {
	words, ok := mbody["result"].([]interface{})
	if ok {
		for _, word := range words {
			str += word.(string) + "\n"
		}
		return str
	}
	return ""
}