package configuration

import (
	"errors"
	"fmt"
)

var errRSSValidate = errors.New("validate RSS configuration")

// RSS is an RSS parser configuration.
type RSS struct {
	HTTPClient *HTTPClient `json:"http_client"`
	Feeds      []*Feed     `json:"feeds"`
}

// Validate validates RSS parser configuration.
func (r *RSS) Validate() error {
	for idx, feed := range r.Feeds {
		if err := feed.Validate(); err != nil {
			return fmt.Errorf("%w: feed %d: %w", errRSSValidate, idx, err)
		}
	}

	if err := r.HTTPClient.Validate(); err != nil {
		return fmt.Errorf("%w: %w", errRSSValidate, err)
	}

	return nil
}