package controller

import (
	"bytes"
	"encoding/json"
	"fmt"
	"kng_feed_api/helper"
	"log"
	"net/http"
	"os"
	"path/filepath"

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

type BitrixRequest struct {
	DIALOG_ID string `json:"DIALOG_ID"`
	MESSAGE   string `json:"MESSAGE"`
}

func SendXmlFeedToClient(context *gin.Context) {
	var ra = context.Request.RemoteAddr
	msg := BitrixRequest{
		DIALOG_ID: "chat128124",
		MESSAGE:   fmt.Sprintf("Был запрошен полый фид c ip адреса [%s]", ra),
	}
	marshalled, err := json.Marshal(msg)
	if err != nil {
		log.Printf("impossible to marshall teacher: %s\n", err)
	}
	sendBitrix24Log(marshalled)

	sendFile(context, "feed.xml")
}

func SendCsvDeltaToClient(context *gin.Context) {
	var ra = context.Request.RemoteAddr
	msg := BitrixRequest{
		DIALOG_ID: "chat128124",
		MESSAGE:   fmt.Sprintf("Был запрошен delta-фид c ip адреса [%s]", ra),
	}
	marshalled, err := json.Marshal(msg)
	if err != nil {
		log.Printf("impossible to marshall teacher: %s\n", err)
	}
	sendBitrix24Log(marshalled)
	sendFile(context, "delta.csv")
}

func sendBitrix24Log(jsonStr []byte) {
	url := "https://kng.bitrix24.ru/rest/1/vu5dqvx5sifh1334/im.message.add"

	req, err := http.NewRequest("POST", url, bytes.NewReader(jsonStr))
	req.Header.Set("Content-Type", "application/json")

	client := &http.Client{}
	resp, err := client.Do(req)
	defer resp.Body.Close()

	if err != nil {
		fmt.Println(err)
	}

}

func sendFile(context *gin.Context, fileMark string) {
	var fileName = filepath.Join(helper.RootDir(), fileMark)
	_, err := os.Stat(fileName)
	if err != nil {
		if os.IsNotExist(err) {
			context.JSON(http.StatusInternalServerError,
				gin.H{
					"description": "The file does not exist yet. Contact the administrator.",
					"err":         "ERR-001",
				},
			)
			return
		} else {
			context.JSON(http.StatusInternalServerError,
				gin.H{
					"description": err.Error(),
					"err":         "unknown error",
				},
			)
			return
		}
	}
	context.FileAttachment(fileName, fileMark)
	context.Status(http.StatusOK)
}