package chat

import (
	"context"
	"fmt"
	"net/http"
	"net/url"

	"github.com/google/go-querystring/query"
)

type SendShoutoutParams struct {
	// The ID of the broadcaster that’s sending the Shoutout.
	FromBroadcasterID string `url:"from_broadcaster_id"`

	// The ID of the broadcaster that’s receiving the Shoutout.
	ToBroadcasterID string `url:"to_broadcaster_id"`

	// The ID of the broadcaster or a user that is one of the broadcaster’s moderators.
	// This ID must match the user ID in the access token.
	ModeratorID string `url:"moderator_id"`
}

// Sends a Shoutout to the specified broadcaster.
// Typically, you send Shoutouts when you or one of your moderators notice another broadcaster in your chat,
// the other broadcaster is coming up in conversation, or after they raid your broadcast.
//
// Twitch’s Shoutout feature is a great way for you to show support for other broadcasters and help them grow.
// Viewers who do not follow the other broadcaster will see a pop-up Follow button in your chat that they can click to follow the other broadcaster.
// Learn More: https://help.twitch.tv/s/article/shoutouts
//
// Rate Limits The broadcaster may send a Shoutout once every 2 minutes.
// They may send the same broadcaster a Shoutout once every 60 minutes.
//
// To receive notifications when a Shoutout is sent or received, subscribe to the channel.shoutout.create and channel.shoutout.receive subscription types.
// The channel.shoutout.create event includes cooldown periods that indicate when the broadcaster may send another
// Shoutout without exceeding the endpoint’s rate limit.
//
// Requires a user access token that includes the moderator:manage:shoutouts scope.
func (c *Chat) SendShoutout(ctx context.Context, params *SendShoutoutParams) error {
	v, _ := query.Values(params)
	endpoint := c.baseUrl.ResolveReference(&url.URL{Path: "chat/shoutouts", RawQuery: v.Encode()})

	req, err := http.NewRequestWithContext(ctx, http.MethodPost, endpoint.String(), nil)
	if err != nil {
		return err
	}

	res, err := c.client.Do(req)
	if err != nil {
		return err
	}
	defer res.Body.Close()

	statusOK := res.StatusCode >= 200 && res.StatusCode < 300
	if !statusOK {
		return fmt.Errorf("failed to send shoutout (%d)", res.StatusCode)
	}

	return nil
}