package tools

import (
	"bytes"
	"encoding/json"
	"fmt"
	"io"
	"io/ioutil"
	"mime/multipart"
	"net"
	"net/http"
	"net/url"
	"os"
	"strconv"
	"strings"
	"time"
)

func Get(url string, authinfo ...string) (interface{}, error) {
	timeout := time.Duration(5 * time.Second)
	client := &http.Client{Timeout: timeout}
	req, reqerr := http.NewRequest("GET", url, nil)
	if reqerr != nil {
		fmt.Println(url)
		return nil, reqerr
	}
	if len(authinfo) > 0 && authinfo[0] != "" {
		req.Header.Set("Authorization", authinfo[0])
	}
	result, httperr := client.Do(req)
	//defer result.Body.Close()
	if httperr != nil {
		fmt.Println(url)
		return nil, httperr
	}
	body, err := ioutil.ReadAll(result.Body)
	if err != nil {
		return nil, err
	}
	result.Close = true
	return returnBody(body)
}

func Post(url string, data interface{}, authinfo ...string) (interface{}, error) {
	timeout := time.Duration(5 * time.Second)
	client := &http.Client{Timeout: timeout}
	req, reqerr := http.NewRequest("POST", url, strings.NewReader(data.(string)))
	if reqerr != nil {
		return nil, reqerr
	}
	if len(authinfo) > 0 && authinfo[0] != "" {
		req.Header.Set("Authorization", authinfo[0])
		//req.Header.Set("Content-Type", "application/json;charset=utf-8")
	}
	req.Header.Set("Content-Type", "application/x-www-form-urlencoded;charset=utf-8")

	result, httperr := client.Do(req)
	//defer result.Body.Close()
	if httperr != nil {
		fmt.Println(url)
		fmt.Println(data)
		return nil, httperr
	}
	body, err := ioutil.ReadAll(result.Body)
	if err != nil {
		return nil, err
	}
	result.Close = true
	return returnBody(body)
}

func PostJson(url string, data interface{}, authinfo ...string) (interface{}, error) {
	timeout := time.Duration(5 * time.Second)
	client := &http.Client{Timeout: timeout}
	req, reqerr := http.NewRequest("POST", url, strings.NewReader(data.(string)))
	if reqerr != nil {
		fmt.Println(url)
		fmt.Println(data)
		return nil, reqerr
	}
	if len(authinfo) > 0 && authinfo[0] != "" {
		req.Header.Set("Authorization", authinfo[0])
		//
	}
	req.Header.Set("Content-Type", "application/json;charset=utf-8")

	result, httperr := client.Do(req)
	//defer result.Body.Close()
	if httperr != nil {
		fmt.Println(url)
		fmt.Println(data)
		return nil, httperr
	}
	body, err := ioutil.ReadAll(result.Body)
	if err != nil {
		return nil, err
	}
	result.Close = true
	return returnBody(body)
}

func PostRaw(url string, data interface{}) (interface{}, error) {
	result, httperr := http.Post(url, "text/plain;charset=utf-8", strings.NewReader(data.(string)))
	if httperr != nil {
		fmt.Println(url)
		fmt.Println(data)
		return nil, httperr
	}
	body, err := ioutil.ReadAll(result.Body)
	if err != nil {
		return nil, err
	}
	result.Close = true
	return returnBody(body)
}

func PostForm(url string, data url.Values, authinfo ...string) (interface{}, error) {
	timeout := time.Duration(5 * time.Second)
	client := &http.Client{Timeout: timeout}
	req, reqerr := http.NewRequest("POST", url, strings.NewReader(data.Encode()))
	if reqerr != nil {
		fmt.Println(url)
		fmt.Println(data)
		return nil, reqerr
	}
	if len(authinfo) > 0 && authinfo[0] != "" {
		req.Header.Set("Authorization", authinfo[0])
	}
	req.Header.Set("Content-Type", "application/x-www-form-urlencoded;charset=utf-8")
	result, httperr := client.Do(req)
	//defer result.Body.Close()
	if httperr != nil {
		fmt.Println(url)
		fmt.Println(data)
		return nil, httperr
	}
	body, err := ioutil.ReadAll(result.Body)
	if err != nil {
		return nil, err
	}
	result.Close = true
	return returnBody(body)
}

func PostRawBasicAuth(url string, data interface{}, user string, pwd string) (interface{}, error) {
	client := http.Client{
		Transport: &http.Transport{
			Dial: func(netw, addr string) (net.Conn, error) {
				c, err := net.DialTimeout(netw, addr, time.Second*5)
				if err != nil {
					fmt.Println("dail timeout", err)
					return nil, err
				}
				return c, nil

			},
			MaxIdleConnsPerHost:   10,
			ResponseHeaderTimeout: time.Second * 5,
		},
	}
	req, _ := http.NewRequest("POST", url, strings.NewReader(data.(string)))
	req.SetBasicAuth(user, pwd)
	req.Header.Set("Content-Type", "text/plain;charset=utf-8")
	result, httperr := client.Do(req)
	//result, httperr := http.Post(url, "text/plain;charset=utf-8", strings.NewReader(data.(string)))
	if httperr != nil {
		fmt.Println(url)
		fmt.Println(data)
		return nil, httperr
	}
	body, err := ioutil.ReadAll(result.Body)
	if err != nil {
		return nil, err
	}
	result.Close = true
	return returnBody(body)
}

func Put(url string, data interface{}) (interface{}, error) {
	req, httperr := http.NewRequest("PUT", url, strings.NewReader(data.(string)))
	if httperr != nil {
		return nil, httperr
	}
	res, httperr := http.DefaultClient.Do(req)
	if httperr != nil {
		return nil, httperr
	}
	body, err := ioutil.ReadAll(res.Body)
	if err != nil {
		return nil, err
	}
	res.Close = true
	return returnBody(body)
}

func Delete(url string) (interface{}, error) {
	req, httperr := http.NewRequest("DELETE", url, nil)
	//req.Header.Add("Authorization", "5F6MJ3N2Tk9ruL_6XQpx-uxkkg:o56-nIwtgTzUX80YCNpbcjUL8iM=:eyJyZXNvdXJjZSI6IF9mbG93RGF0YVNvdXJjZTEiLCJleHBpcmVzIjoxNTM2NzU4ODE2LCJjb250ZW50TUQ1IjoiIiwiY29udGVudFR5cGUiOiIiLCJoZWFkZXJzIjoiIiwibWV0aG9kIjoiREVMRVRFIn0=")
	if httperr != nil {
		return nil, httperr
	}
	res, httperr := http.DefaultClient.Do(req)
	if httperr != nil {
		return nil, httperr
	}
	body, httperr := ioutil.ReadAll(res.Body)
	if httperr != nil {
		return nil, httperr
	}
	res.Close = true
	return returnBody(body)
}

func PostFile(targetUrl string, filename string, filed string) (interface{}, error) {
	bodyBuf := &bytes.Buffer{}
	bodyWriter := multipart.NewWriter(bodyBuf)

	//关键的一步操作
	fileWriter, err := bodyWriter.CreateFormFile(filed, filename)
	if err != nil {
		fmt.Println("error writing to buffer")
		return nil, err
	}

	//打开文件句柄操作
	fh, err := os.Open(filename)
	if err != nil {
		fmt.Println("error opening file")
		return nil, err
	}
	defer fh.Close()

	//iocopy
	_, err = io.Copy(fileWriter, fh)
	if err != nil {
		return nil, err
	}

	contentType := bodyWriter.FormDataContentType()
	bodyWriter.Close()

	resp, err := http.Post(targetUrl, contentType, bodyBuf)
	if err != nil {
		return nil, err
	}
	body, err := ioutil.ReadAll(resp.Body)
	if err != nil {
		return nil, err
	}
	resp.Close = true
	return returnBody(body)
}

func Soap11(url string, databody string) (interface{}, error) {
	reqBody := `<?xml version="1.0" encoding="utf-8"?><soap:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
	  xmlns:xsd="http://www.w3.org/2001/XMLSchema" 
	  xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/"> 
	  <soap:Body>` + databody + `</soap:Body> 
	</soap:Envelope>`

	res, err := http.Post(url, "text/xml; charset=UTF-8", strings.NewReader(reqBody))
	if nil != err {
		fmt.Println("http post err:", err)
		return nil, err
	}
	defer res.Body.Close()

	// return status
	if http.StatusOK != res.StatusCode {
		fmt.Println("WebService soap1.1 request fail, status: %s\n", res.StatusCode)
		return strconv.Itoa(http.StatusOK), nil
	}

	data, err := ioutil.ReadAll(res.Body)
	if nil != err {
		fmt.Println("ioutil ReadAll err:", err)
		return nil, err
	}
	return string(data), nil
}

func Soap12(url string, databody string) (interface{}, error) {
	reqBody := `<?xml version="1.0" encoding="utf-8"?><soap12:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
	  xmlns:xsd="http://www.w3.org/2001/XMLSchema" 
	  xmlns:soap12="http://www.w3.org/2003/05/soap-envelope"> 
	  <soap12:Body>` + databody + `</soap12:Body> 
	</soap12:Envelope>`

	res, err := http.Post(url, "application/soap+xml; charset=UTF-8", strings.NewReader(reqBody))
	if nil != err {
		fmt.Println("http post err:", err)
		return nil, err
	}
	defer res.Body.Close()

	// return status
	if http.StatusOK != res.StatusCode {
		fmt.Println("WebService soap1.1 request fail, status: %s\n", res.StatusCode)
		return strconv.Itoa(http.StatusOK), nil
	}

	data, err := ioutil.ReadAll(res.Body)
	if nil != err {
		fmt.Println("ioutil ReadAll err:", err)
		return nil, err
	}
	return string(data), nil
}

func returnBody(body []byte) (interface{}, error) {
	if len(body) == 0 {
		return "", nil
	}
	jsonStr := string(body)
	firstChar := jsonStr[0:1]
	if firstChar == "[" || firstChar == "{" {
		jsondata := make(map[string]interface{})
		newStr := `{"a":` + jsonStr + `}`
		err := json.Unmarshal([]byte(newStr), &jsondata)
		if err != nil {
			return jsonStr, err
		}
		return jsondata["a"], nil
	} else {
		return jsonStr, nil
	}
}