package telegram

import (
	"errors"
	"fmt"

	log "github.com/kirillDanshin/dlog"
	json "github.com/pquerna/ffjson/ffjson"
	http "github.com/valyala/fasthttp"
)

func (bot *Bot) request(dst []byte, method string) (*Response, error) {
	requestURI := defaultURI
	requestURI.Path = fmt.Sprint("/bot", bot.AccessToken, "/", method)

	req := http.AcquireRequest()
	defer http.ReleaseRequest(req)
	req.Header.SetContentType("application/json; charset=utf-8")
	req.Header.SetMethod("POST")
	if dst == nil {
		req.Header.SetMethod("GET")
	}
	req.Header.SetRequestURI(requestURI.String())
	req.Header.SetUserAgent(fmt.Sprint("telegram/", Version))
	req.Header.SetHost(requestURI.Hostname())
	req.SetBody(dst)

	resp := http.AcquireResponse()
	defer http.ReleaseResponse(resp)
	err := http.Do(req, resp)
	log.Ln("Request:")
	log.D(req)
	log.Ln("Response:")
	log.D(resp)
	if err != nil {
		return nil, err
	}

	var data Response
	if err = json.Unmarshal(resp.Body(), &data); err != nil {
		return nil, err
	}

	if !data.Ok {
		return &data, errors.New(data.Description)
	}

	return &data, nil
}