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// Copyright 1994-2025 WIT.COM Inc Licensed GPL 3.0

package httppb

import (
	"bytes"
	"io/ioutil"
	"net/http"
	"net/url"
	"os"
	"os/user"

	"go.wit.com/log"
)

// standard protobuf POST
// returns *HttpRequst protobuf
func DoPost(baseURL string, route string, data []byte) (*HttpRequest, error) {
	// if you ever have 'http://www.wit.com//' GO will regect the server recieving it.
	// Even though the linux kernel gets the network payload
	// also it never gives you an error about that, it just goes away invisably inside GO
	tmpURL, _ := url.Parse(baseURL)    // "http://forge.grid.wit.com:2520")
	finalURL := tmpURL.JoinPath(route) // Correctly produces ...:2520/patches

	var err error
	var req *http.Request

	log.Info("httppb.HttpPost to", finalURL.String())
	req, err = http.NewRequest(http.MethodPost, finalURL.String(), bytes.NewBuffer(data))
	if req == nil {
		return nil, err
	}

	username := os.Getenv("GIT_AUTHOR_NAME")
	if username == "" {
		usr, _ := user.Current()
		username = usr.Username
	}
	req.Header.Set("author", username)
	hostname, _ := os.Hostname()
	req.Header.Set("hostname", hostname)

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

	body, err := ioutil.ReadAll(resp.Body)
	if err != nil {
		return nil, err
	}

	reqPB, err := ReqToPB(req)
	reqPB.URL = finalURL.String()
	reqPB.ClientData = data
	reqPB.ClientDataLen = int64(len(data))
	reqPB.ServerData = body
	reqPB.ServerDataLen = int64(len(body))

	return reqPB, nil
}

/*
// HTTPRequestToProto converts an *http.Request to our custom HttpRequest protobuf message.
func (pb *Patches) AddHttpToPB(r *http.Request) error {
	if pb == nil {
		return log.Errorf("AddHttpToPB() pb was nil")
	}
	// Convert the header map. http.Header is a map[string][]string.
	// We'll just take the first value for each header for simplicity.
	headers := make(map[string]string)
	for name, values := range r.Header {
		if len(values) > 0 {
			headers[name] = strings.Join(values, "\n")
		}
	}

	pb.HttpRequest = &httppb.HttpRequest{
		Method:   r.Method,
		URL:      r.URL.String(),
		Proto:    r.Proto,
		Headers:  headers,
		IP:       getClientIP(r),
		Host:     r.Host,
		Hostname: r.Header.Get("hostname"),
	}
	// pb.HttpRequest.Route = cleanURL(r.URL.Path)
	return nil
}
*/

func HttpPost(baseURL string, route string, data []byte) ([]byte, error) {
	// Fix using url.JoinPath (Best Practice)
	tmpURL, _ := url.Parse(baseURL)    // "http://forge.grid.wit.com:2520")
	finalURL := tmpURL.JoinPath(route) // Correctly produces ...:2520/patches

	var err error
	var req *http.Request

	log.Info("httppb.HttpPost to", finalURL.String())
	req, err = http.NewRequest(http.MethodPost, finalURL.String(), bytes.NewBuffer(data))
	if req == nil {
		return nil, err
	}

	username := os.Getenv("GIT_AUTHOR_NAME")
	if username == "" {
		usr, _ := user.Current()
		username = usr.Username
	}
	req.Header.Set("author", username)
	hostname, _ := os.Hostname()
	req.Header.Set("hostname", hostname)

	return PostReq(req)
}

// Posts a reqest and returns the bytes returned
func PostReq(req *http.Request) ([]byte, error) {
	client := &http.Client{}
	resp, err := client.Do(req)
	if err != nil {
		return []byte("client.Do(req) error"), err
	}
	defer resp.Body.Close()

	body, err := ioutil.ReadAll(resp.Body)
	if err != nil {
		return body, err
	}

	return body, nil
}