package icshttp

import (
	"batchmodule/icsconf"
	"batchmodule/icserror"
	"batchmodule/icslog"
	"bytes"
	"crypto/tls"
	"encoding/json"
	"fmt"
	"io"
	"log"
	"net/http"
	"strconv"
	"strings"
	"time"

	"github.com/gorilla/websocket"
)

var (
	conf icsconf.AppInfo
	l    *log.Logger
)

func init() {
	conf = icsconf.Getconfig()
	l = icslog.InitializeLogger()
}

type TAInfoJSON struct {
	Cmd           string `json:"cmd"`
	ConnId        string `json:"connId"`
	Tel           string `json:"tel"`
	Ext           string `json:"ext"`
	EmpId         string `json:"empId"`
	DateTime      string `json:"dateTime"`
	CallStartTime string `json:"callStartTime"`
	Index         string `json:"index"`
	Stt           string `json:"stt"`
	Dir           string `json:"dir"`
	IoGbn         string `json:"ioGbn"`
}

type FailedList struct {
	No        int    `json:"no"`
	ConnId    string `json:"connid"`
	Ext       string `json:"ext"`
	StartTime string `json:"starttime"`
}

type FailedDataListReqBody struct {
	StartTime string `json:"starttime"`
	Ext       string `json:"ext"`
	ConnId    string `json:"connid"`
}

type FailedDataListResBody struct {
	TotalCnt   string       `json:"totalCnt"`
	ReturnCode string       `json:"returnCode"`
	ReturnMsg  string       `json:"returnMsg"`
	List       []FailedList `json:"list"`
}

type FailedDataVoiceResBody struct {
	VoiceFile  string `json:"voiceFile"`
	ReturnCode string `json:"returnCode"`
	ReturnMsg  string `json:"returnMsg"`
}

type IcsHttpClient struct {
	Method  string
	URL     string
	Request *http.Request
	http.Client
}
type TAResp struct {
	Success    bool   `json:"success"`
	ReturnCode string `json:"returnCode"`
	Message    string `json:"message"`
}

type NockChiReqBody struct {
	Uid         string `json:"uid"`
	Ext         string `json:"ext"`
	SpeakerTag  string `json:"speackertag"`
	Transcripts string `json:"transcripts"`
}

func NewIcsHttpClient(method, url string, body io.Reader) *IcsHttpClient {
	c := &IcsHttpClient{Method: method, URL: url}
	r, err := http.NewRequest(method, url, body)
	if err != nil {
		l.Println("HTTP Client error while http.NewRequest(). error: ", err)
		return nil
	}
	c.Request = r
	c.SetTimeout(time.Millisecond * 1000 * 5)

	return c
}

func (c *IcsHttpClient) SetTimeout(timeout time.Duration) {
	c.Timeout = timeout
}

func HttpRequest(url, method, requestBody string) (*http.Response, error) {
	// TLS 설정
	tr := &http.Transport{
		TLSClientConfig: &tls.Config{InsecureSkipVerify: true}, // 인증서 검증 비활성화
	}
	client := &http.Client{Transport: tr}

	// client := &http.Client{}
	payload := strings.NewReader(requestBody)
	req, _ := http.NewRequest(method, url, payload)
	req.Header.Set("Content-Type", "application/json")

	// 요청
	res, err := client.Do(req)
	if err != nil {
		return nil, fmt.Errorf("요청 오류: %w", err)
	}

	if res.StatusCode != http.StatusOK {
		return nil, fmt.Errorf("error: received non-200 response status: %s", res.Status)
	}

	return res, nil
}

func PostReqForFailedDataList() (response *FailedDataListResBody, cerr *icserror.IcsError) {
	url := conf.Urls.FailedDataListUrl
	currentDate := time.Now().Format("20060102")
	currentDateUint64, _ := strconv.ParseUint(currentDate, 10, 64)
	starttime := currentDateUint64 - 1
	starttimeStr := strconv.FormatUint(starttime, 10)

	body := FailedDataListReqBody{
		StartTime: starttimeStr,
		Ext:       "",
		ConnId:    "",
	}
	jsonBody, err := json.Marshal(body)
	if err != nil {
		return nil, icserror.ICSERRMarshal
	}
	reqBody := bytes.NewBuffer(jsonBody)

	l.Printf("client.go>PostReqForFailedDataList()> url: %s, reqBody: %+v", url, reqBody.String())

	client := NewIcsHttpClient("POST", url, reqBody)
	if client == nil {
		return nil, icserror.ICSERRHTTPClientCreate
	}
	client.Request.Header.Add("Content-Type", "application/json;charset=utf-8")
	client.Request.Header.Add("Accept", "application/json")

	l.Printf("Error at client.go>PostReqForFailedDataList()> client.Request: %+v", client)

	resp, err := client.Do(client.Request)
	if err != nil {
		l.Printf("Err at client.go>PostReqForFailedDataList()> client.Do failed. resp: %+v", resp)
		l.Printf("The err: %+v", err)
		return nil, icserror.ICSERRHTTPClientExcecution
	}

	l.Printf("client.go>PostReqForFailedDataList()> resp: %+v", resp)
	resBody, err := io.ReadAll(resp.Body)
	if err != nil {
		l.Printf("client.go>PostReqForFailedDataList()> ReadAll err: %+v", err)
		return nil, icserror.ICSERRRead
	}
	defer resp.Body.Close()

	if err := json.Unmarshal(resBody, &response); err != nil {
		l.Printf("Error at client.go>PostReqForFailedDataList()> Unmarshal err: %+v", err)
		return nil, icserror.ICSERRUnmarshal
	}
	if strings.Contains(response.ReturnCode, "9999") {
		l.Printf("Error at client.go>PostReqForFailedDataList()> response returnCode is 9999 with the message: %s", response.ReturnMsg)
		return nil, icserror.ICSERRHTTPClientResponseFail
	}

	return response, nil

}

func PostReqForEachVoiceFile(reqDataForVoiceFile FailedDataListReqBody) (response *FailedDataVoiceResBody, cerr *icserror.IcsError) {
	url := conf.Urls.FailedDataListUrl
	jsonBody, err := json.Marshal(reqDataForVoiceFile)
	if err != nil {
		return nil, icserror.ICSERRMarshal
	}
	reqBody := bytes.NewBuffer(jsonBody)
	l.Printf("client.go>PostReqForEachVoiceFile()> url: %s, reqBody: %+v", url, reqBody.String())
	client := NewIcsHttpClient("POST", url, reqBody)
	if client == nil {
		return nil, icserror.ICSERRHTTPClientCreate
	}
	client.Request.Header.Add("Content-Type", "application/json;charset=utf-8")
	client.Request.Header.Add("Accept", "application/json")

	l.Printf("Error at client.go>PostReqForEachVoiceFile()> client.Request: %+v", client)

	resp, err := client.Do(client.Request)
	if err != nil {
		l.Printf("Error at client.go>PostReqForEachVoiceFile()> client.Do failed. resp: %+v", resp)
		l.Printf("The err: %+v", err)
		return nil, icserror.ICSERRHTTPClientExcecution
	}

	l.Printf("client.go>PostReqForEachVoiceFile()> resp: %+v", resp)
	resBody, err := io.ReadAll(resp.Body)
	if err != nil {
		l.Printf("client.go>PostReqForEachVoiceFile()> ReadAll err: %+v", err)
		return nil, icserror.ICSERRRead
	}
	defer resp.Body.Close()

	if err := json.Unmarshal(resBody, &response); err != nil {
		l.Printf("Error at client.go>PostReqForEachVoiceFile()> Unmarshal err: %+v", err)
		return nil, icserror.ICSERRUnmarshal
	}
	if strings.Contains(response.ReturnCode, "9999") {
		l.Printf("Error at client.go>PostReqForEachVoiceFile()> response returnCode is 9999 with the message: %s", response.ReturnMsg)
		return nil, icserror.ICSERRHTTPClientResponseFail
	}
	l.Printf("client.go>PostReqForEachVoiceFile()> response: %+v", response)

	return response, nil

}

func SendSTTResToNockChiServer(parsedRes FailedDataListReqBody, sttRes string, dir string) *icserror.IcsError {

	fullURL := conf.Urls.NockChiServer.BaseURL + conf.Urls.NockChiServer.EndPoint
	headers := http.Header{
		"Origin": {conf.Urls.NockChiServer.BaseURL},
	}
	conn, _, err := websocket.DefaultDialer.Dial(fullURL, headers)
	if err != nil {
		l.Printf("[ERR] client.go>SendSTTResToNockChiServer()> connecting websocket failed. err: %v", err)
		return icserror.ICSERRWEBSOCKETConnectFailError
	}
	defer conn.Close()

	reqData := NockChiReqBody{
		Uid:         parsedRes.ConnId,
		Ext:         parsedRes.Ext,
		SpeakerTag:  dir,
		Transcripts: sttRes,
	}

	jsonData, _ := json.Marshal(reqData)

	reqBody := fmt.Sprintf(`{"data":"%s"}`, jsonData)

	err = conn.WriteMessage(websocket.TextMessage, []byte(reqBody))
	if err != nil {
		l.Println("[ERR] client.go>SendSTTResToNockChiServer()> conn.WriteMessage() failed. err: ", err)
		return icserror.ICSERRWEBSOCKETWriteError
	}
	l.Println("[LOG] client.go>SendSTTResToNockChiServer()> the stt result(connId: %s) was successfully sent via websocket. reqBody: %s", parsedRes.ConnId, reqBody)
	return nil

}

func PostProcessTA(url, cmd string, connId string, tel string, ext string, empId string, dateTime string, callStartTime string, index string, stt string, dir string, ioGbn string) (tAResp *TAResp, cerr *icserror.IcsError) {

	tAInfoJSON := TAInfoJSON{
		Cmd:           cmd,
		ConnId:        connId,
		Tel:           tel,
		Ext:           ext,
		EmpId:         empId,
		DateTime:      dateTime,
		CallStartTime: callStartTime,
		Index:         index,
		Stt:           stt,
		Dir:           dir,
		IoGbn:         ioGbn,
	}
	b, err := json.Marshal(tAInfoJSON)
	if err != nil {
		return nil, icserror.ICSERRMarshal
	}
	body := bytes.NewBuffer(b)

	client := NewIcsHttpClient("POST", url, body)
	if client == nil {
		l.Printf("[ERR] client.go>PostProcessTA()> NewIcsHttpClient() failed. err: %v", err)
		l.Printf("[ERR] client.go>PostProcessTA()> NewIcsHttpClient() failed. url: %s, body: %s", url, body)
		return nil, icserror.ICSERRHTTPClientCreate
	}
	client.Request.Header.Add("Content-Type", "application/json;charset=utf-8")
	client.Request.Header.Add("Accept", "application/json")
	l.Printf("[LOG] client.go>PostProcessTA()> Post Request Body: %+v", client.Request.Body)

	resp, err := client.Do(client.Request)
	if err != nil {
		l.Printf("[ERR] client.go>PostProcessTA()> client.Do failed. err: %v", err)
		l.Printf("[ERR] client.go>PostProcessTA()> client.Do failed. resp: %v", resp)
		return nil, icserror.ICSERRHTTPClientPostRequest
	}
	l.Printf("[LOG] client.go>PostProcessTA()> client.Do() resp: %v", resp)

	resBody, err := io.ReadAll(resp.Body)
	if err != nil {
		l.Printf("[ERR] client.go>PostProcessTA()> ReadAll failed. err: %v", err)
		return nil, icserror.ICSERRRead
	}
	defer resp.Body.Close()

	if err := json.Unmarshal(resBody, &tAResp); err != nil {
		l.Printf("[ERR] client.go>PostProcessTA()> Unmarshal failed. err: %v", err)
		return nil, icserror.ICSERRUnmarshal
	}

	return tAResp, nil
}