package moderation

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

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

type AddChannelModeratorParams struct {
	// The ID of the broadcaster that owns the chat room. This ID must match the user ID in the access token.
	BroadcasterID string `url:"broadcaster_id"`

	// The ID of the user to add as a moderator in the broadcaster’s chat room.
	UserID string `url:"user_id"`
}

// Adds a moderator to the broadcaster’s chat room.
//
// Rate Limits: The broadcaster may add a maximum of 10 moderators within a 10-second window.
//
// Requires a user access token that includes the channel:manage:moderators scope.
func (m *Moderation) AddChannelModerator(ctx context.Context, params *AddChannelModeratorParams) error {
	v, _ := query.Values(params)
	endpoint := m.baseUrl.ResolveReference(&url.URL{Path: "moderation/moderators", RawQuery: v.Encode()})

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

	res, err := m.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 add channel moderator (%d)", res.StatusCode)
	}

	return nil
}