package telegram

import json "github.com/pquerna/ffjson/ffjson"

type SetWebhookParameters struct {
	// HTTPS url to send updates to. Use an empty string to remove webhook
	// integration
	URL string `json:"url"`

	// Upload your public key certificate so that the root certificate in use can
	// be checked. See our self-signed guide for details.
	Certificate *InputFile `json:"certificate,omitempty"`

	// Maximum allowed number of simultaneous HTTPS connections to the webhook
	// for update delivery, 1-100. Defaults to 40. Use lower values to limit the
	// load on your bot‘s server, and higher values to increase your bot’s
	// throughput.
	MaxConnections int `json:"max_connections,omitempty"`

	// List the types of updates you want your bot to receive. For example,
	// specify [“message”, “edited_channel_post”, “callback_query”] to only
	// receive updates of these types. See Update for a complete list of
	// available update types. Specify an empty list to receive all updates
	// regardless of type (default). If not specified, the previous setting will
	// be used.
	//
	// Please note that this parameter doesn't affect updates created before the
	// call to the setWebhook, so unwanted updates may be received for a short
	// period of time.
	AllowedUpdates []string `json:"allowed_updates,omitempty"`
}

// SetWebhook specify a url and receive incoming updates via an outgoing webhook.
// Whenever there is an update for the bot, we will send an HTTPS POST request to
// the specified url, containing a JSON-serialized Update. In case of an
// unsuccessful request, we will give up after a reasonable amount of attempts.
// Returns true.
//
// If you'd like to make sure that the Webhook request comes from Telegram, we
// recommend using a secret path in the URL, e.g. https://www.example.com/<token>.
// Since nobody else knows your bot‘s token, you can be pretty sure it’s us.
func (bot *Bot) SetWebhook(params *SetWebhookParameters) (bool, error) {
	dst, err := json.Marshal(*params)
	if err != nil {
		return false, err
	}

	resp, err := bot.request(dst, "setWebhook", nil)
	if err != nil {
		return false, err
	}

	var data bool
	err = json.Unmarshal(*resp.Result, &data)
	return data, err
}