package utils

import (
	"bytes"
	"context"
	"encoding/json"
	"io"
	"net/http"
)

func RequestBuilder(
	ctx context.Context,
	method string,
	url string,
	body any,
	header http.Header,
) (req *http.Request, err error) {
	var bodyReader io.Reader
	if body != nil {
		if v, ok := body.(io.Reader); ok {
			bodyReader = v
		} else {
			var reqBytes []byte
			reqBytes, err = json.Marshal(body)
			if err != nil {
				return
			}
			bodyReader = bytes.NewBuffer(reqBytes)
		}
	}
	req, err = http.NewRequestWithContext(ctx, method, url, bodyReader)
	if err != nil {
		return
	}
	if header != nil {
		req.Header = header
	}
	return
}